KR20160144253A - System based on the ambient lighting and its method - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an image system for providing an ambient lighting effect to a frame in cooperation with an image displayed through a screen. More specifically, the present invention relates to an image sensor unit for securing light source information of a specific area projected on a screen A signal processing control unit connected to the image sensor unit to receive the light source information and to instruct the light emitting device to emit light corresponding to a corresponding hue and luminance value based on the light source information, And more particularly, to a video system capable of giving a background light effect freely from a subordinate platform while providing a viewing effect of a more extended feeling by forming a background light on a screen frame.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an image system for forming a background light on a frame,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an image system for forming an ambient lighting in a frame in cooperation with an image displayed on a display panel or a screen. More specifically, The present invention relates to an image system capable of giving a background light effect freely without being dependent on a platform.

In general, ambient lighting refers to indirect lighting that reflects light from the left, right,

A plurality of lights are usually installed at the edges of the display device and the lights reproduce the image information of the display device to emit light as a result of which light is naturally spread by indirect light or reflected light to reduce the fatigue of the eyes, Thereby providing a viewing environment.

This background optical system was first developed by Philip ASA Lab in 2002 and sold under the brand name "Ambilight TV"

In particular, after the data stored in the image storage device is copied, the background light reproducing device forms the background light around the monitor using the copied data,

Alternatively, when the reproducing apparatus outputs the video signal, the same image information is received using the distributor, and then the background light is formed based on the same image information.

For reference, such a background optical system provides a more extended viewing effect as the light spreads around the monitor due to indirect light or reflected light,

It is installed in a multiplex theater that divides one screening hall into several spaces and a screen and seats are arranged in each divided space and a hall or a square where a lot of people gather,

So that more people can see the big screen.

However, the image displayed through the screen or the display panel of the theater or the auditorium,

As the contents are played according to the DCI (Digital Cinema Initiative) standard or the designated image standard composed by the 7 major majors of Hollywood, USA. .

In order to illuminate the outwardly extended light in a state where the conventional background optical system is in agreement with the image displayed through the screen or the display panel,

The copyright of the original image stored in the image storage device must be given in consultation with the copyright owner,

In particular, the playback apparatus must check and output images processed according to the DCI (Digital Cinema Initiative) standard and the video format or standard.

Therefore, the conventional background optical system has a limitation that it can only construct the background optical system with the platform which is dependent on the DCI standard and the image standard,

There is a problem that royalty payments must be paid to authors in accordance with copying and use of raw image.

(Patent document 1) WO2004-006570 (public date: January 15, 2004)

Accordingly, the present invention provides a background light effect having an extended feeling in conjunction with an image displayed through a screen or a display panel,

When the background light effect is imparted, the background light effect is freely imparted out of the dependent platform to have differentiated competitiveness.

To this end, in the present invention, an image sensor unit, which is formed in a border region of the screen or the display panel to secure light source information of an image when the image projector projects an image on a screen or when a display panel displays a specific image,

And the other side is connected to a plurality of background light forming units, and the light source information reported through the image sensor unit is analyzed to secure color and luminance, and a background corresponding to each image sensor unit A signal processing control unit for instructing to drive the light forming unit according to the analyzed luminance value and color value,

And a background light forming unit for receiving the instruction command of the signal processing control unit to drive at least one light emitting element to form a background light by irradiating light outside the frame or the edge of the display panel.

The image sensor unit obtains the light source information of the image projected on the screen, determines the hue and luminance by the signal processing control unit based on the light source information, forms the background light on the rim according to the determined hue and luminance value,

The background light that spreads out the edges of the screen or display panel reduces the fatigue of the eyes and allows for a more extended viewing environment.

In addition, the background light can be applied to the background of the screen or panel even if it does not conform to DCI (Digital Cinema Initiative) standard of the overseas film maker, image standard or platform.

In addition, the present invention can change the size of a screen according to the size of each auditorium, a theater, or a stage, and can implement a background optical system to fit a changed screen.

1 is a perspective view of an image system according to an embodiment of the present invention;
2 is a block diagram of an image system according to an embodiment of the present invention.
FIG. 3 is a diagram showing the state of use of the image system according to the embodiment of the present invention
4 is a side sectional view of the image sensor unit of the image system according to the embodiment of the present invention.
5 is a block diagram of an exemplary embodiment of a video system in accordance with another embodiment of the present invention.
6 is a side cross-sectional view of a background light forming portion of an image system according to an embodiment of the present invention.
7 is a flowchart of an image system according to an embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a configuration of an image system according to an exemplary embodiment of the present invention. FIG. 3 is a block diagram illustrating an exemplary embodiment of the present invention. Referring to FIG. 3, And FIG.

As shown in the drawings, the present invention is characterized in that a fixed frame 4 is formed vertically or horizontally on the edge of a display panel or a screen 1, and the fixed frame 4 is vertically or horizontally extended A plurality of image sensor portions 10 are fixedly arranged in a row in the inside of the accommodating portion 16 while the accommodating portion 16 and the inside portion 34 are formed inwardly inwardly, A plurality of background light forming portions 30 are fixedly provided in a line.

A signal processing control section 20 having connectors 21 and 22 formed on one side and the other side is provided inside the stationary frame 4 and the signal processing control section 20 is provided in the connectors 21 and 22, 16, the image sensor unit 10 and the background light forming unit 30 are connected by a cable,

When the content image 1a is projected on the screen 1 or when the display panel displays a specific image,

The plurality of image sensor units 10 obtains the light source information of the image projected on the edge region and reports the result to the signal processing control unit 20. The signal processing control unit 20 reports The corresponding color values and luminance are checked based on the received light source information and then the background light forming unit 30 corresponding to each image sensor unit is controlled according to the recognized color and luminance value,

A background light is formed around a screen or a display panel, which is connected to an image displayed through a screen or a display panel (hereinafter referred to as a screen), thereby providing a wider viewing environment.

At this time, the background light is formed based on the light source information secured through the image sensor unit, and the background light can be freely formed around the screen 1 even if it does not conform to the DCI (Digital Cinema Initiative) standard or the designated image format .

The stationary frame 4 is not limited to a specific place or stage such as a performance hall or an auditorium. The stationary frame may be a frame fixedly installed on the frame 1, A plurality of fixed frames may be provided on the edges of the screen 1 and background light may be formed on the edges of the screen 1 while connecting the respective fixed frames.

Any one of the plurality of fixed frames may be formed by forming a center bent portion or a curved portion and fixed to the edge of the screen 1.

The image sensor unit 10 and the background light forming unit 30 provided inside the receiving portion 16 and the inner portion 34 of the fixed frame are arranged in a state of being adjacent to each other while maintaining the same numbers and intervals However,

One image sensor unit 10 may be provided in one fixed frame and a plurality of background light forming units 30 may be installed in the receiving unit 16 so that the image sensor unit 10 The plurality of background light forming units 30 may be configured to operate integrally or individually based on the secured light source information of the specific area.

In addition, the fixed frame is divided into a fixed frame in which an inner portion is formed and a fixed frame in which a receiving portion is formed. The image sensor portion of each fixed frame and the background light- Or may be configured to be attachable.

The fixed frame may be configured such that the fixed frame, on which the image sensor unit is formed according to the size and shape of the stage, is installed on a stage, an auditorium, or one side wall of the auditorium so that the image sensor unit obtains light source information reflected on the screen.

In some cases, depending on the position of the screen or the display panel on which the video image is displayed, the angle and position of the respective fixed frames provided with the background light forming units may be different.

When the signal processing control unit stores all the background light patterns, the fixed frame is detached and attached. In this embodiment, after the cable of the image sensor unit connected to the connector is disconnected, It can be used only.

The accommodating portion 16 and the inner portion 34 form one inner portion 34 and the accommodating portion 16 and a coupling hole is formed in the inner portion 34 and the accommodating portion 16, The image sensor unit 10 and the background light forming unit 30 may be seated in the respective coupling holes,

A plurality of innersections 34 and accommodating portions 16 are formed and the image sensor portions 10 and the background light forming portions 16 are formed in the inner portion 34 and the accommodating portion 16, The image sensor unit 10 and the background light forming unit 30 may be provided in a state in which interference with the surroundings is minimized.

The accommodating portion and the inside portion are formed by forming an opening in the outer wall of the fixed frame according to the embodiment and fixing the image sensor portion 10 and the background light forming portion 30 in the opening portion, .

4 is a view showing the image sensor unit 10 of the present invention. Referring to this,

When the image sensor unit 10 projects a specific image onto the screen 1 or when the display panel displays a specific image,

The light source information of the light emitted in the edge area of the display panel or the light source information projected in the edge area of the screen is secured and the signal is reported to the signal processing controller 20 to determine the color and luminance value.

The image sensor unit 10 forms a reflector on the inner wall surface of the receiving unit 16 or separately forms a circular or polygonal reflector and collects the light of the projected image on the inner center of the reflector An image input sensor 12 and an image controller 13 are installed at a distance from the condenser lens 11 at a rear end of the condenser lens 11,

When the light projected on the specific area is collected by the image input sensor 12 by the reflector and the condenser lens 11, the light source information including the color and the luminance value is generated, and the generated light source information is converted into digital information And is reported to the signal processing controller 20 in the image controller 13.

The image sensor unit 10 may be installed in a state where the movement is fixed inside the accommodation unit 16,

Since the angles of the lights of the images projected on the screen 1 are different from each other as the positions of the image devices or the beam projectors installed in the respective theaters or the stage or performance venues are different from each other,

The angle adjusting shaft 14 is vertically or laterally formed on one side and the other side of the reflector and the angle adjusting shaft 14 is rotated by driving the motor 15 so that the image sensor unit 10 is moved up and down Or the position can be adjusted in the left / right direction.

For reference, the image sensor unit 10 at this time may obtain the light source information of the image reflected on the screen 1 according to the embodiment. That is, an inner portion 34 is formed on the ceiling, the floor, or the wall surface, and the image sensor portion 10 is formed inside the inner portion 34. When the light source information of the image reflected on the screen 1 is the ceiling, Or may be collected by the image sensor unit 10 located inside the inner surface of the wall surface and transmitted to the signal processing control unit 20.

The signal processing control unit 20 is connected to the plurality of image sensor units 10 to receive the light source information and analyzes the light source information to determine color and luminance values. To form the background light according to the determined brightness value and the hue value.

For reference, the signal processing control unit 20 is an embedded board or an < RTI ID = 0.0 > Android < / RTI > board embedded in a frame, and may be a server of a video system installed in an auditorium or a venue, And the background light pattern stored in the storage unit can be called according to the surrounding environment to edit or recycle the background light pattern.

The signal processing control unit 20 includes a memory 23 for tableing the color values and the latitude values together with the positions of the background light forming units 30 corresponding to the respective image sensor units 10,

When the light source information is reported through the image sensor unit 10, the information stored in the memory 23 is called to recognize the hue and luminance values, and the background light forming unit is driven according to the recognized hue and luminance values. An MCU 24 for instructing,

Connectors 21 and 22 connected to the plurality of image sensor units 10 and the background light forming unit 30 on one side and the other side of the MCU 24,

And an interface 25 for receiving a control command in a wired or wireless connection with an external controller.

At this time, the signal processing control unit sequentially stores the luminance values and color values secured through the respective image sensor units to form a background light pattern, stores the background light pattern formed at this time in the storage unit, The color and luminance values of the background light pattern are loaded so that each of the background light forming units is operated according to the designated hue and luminance value.

That is, the signal processing control unit secures the luminance value and the color value through the image sensor unit at the time of initial operation, and if the signal processing control unit forms the background light pattern, The background light pattern may be called to form the background light in the same manner.

For reference, the MCU 24 can recognize a hue value and a hue value corresponding to the light source information based on the hue value and the color value tabulated in the memory 23, And generate an instruction command for instructing the light emitting device 31 to drive the extracted color value and the luminance value.

In addition, the signal processing control unit 20 includes a driving unit 26 for driving the motor of the image sensor unit 10 to adjust the position of the image sensor unit 10 according to an embodiment of the present invention.

The signal processing control unit 20 moves the specific background light forming unit 30 and displays the image on the screen 1 together with the image projected on the screen 1 when displaying a specific image on the screen 1 according to the embodiment 1) It is possible to display a connected image extending outward and to display a stereoscopic image.

The signal processing control section 20 may be configured such that the rotation axis 3 is formed on one side of the frame and the outer screen 2 is wound and fixed on the rotation axis 3,

The size of the screen 1 located at the center may be enlarged or reduced by the winding and unclamping operation of the rotating shaft.

In this case, the rotation axis may be provided on one side wall of the concert hall or the auditorium depending on the embodiment, and the size of the screen may be adjusted. In some embodiments, the size of the screen may be adjusted by a bellows method or a folding method.

In addition, the signal processing control unit 20 may include a sensor 40 for detecting the brightness of the surroundings in the fixed frame according to an embodiment of the present invention, and may connect the signal processing control unit 20 to the signal processing control unit 20, So that unnecessary operation is minimized or the luminance value of the light emitting element 31 is automatically adjusted in accordance with the brightness, thereby minimizing waste of electric power.

In addition, the signal processing control unit 20 may be provided with a temperature sensor 40 on one side of the fixed frame according to the embodiment, and forms a background light with a brighter or darker color depending on a change in ambient temperature, It is possible to implement a background light that responds to the light.

That is, for example, if the image to be reproduced is a winter image, a background image of a cold color system may be formed to give an expanded feeling, or a background image of a red color system may be formed, .

At this time, as the background light forming unit is driven within the designated range, the background light shaking along with the image reproduced from the inner side may give the effects such as the effect of wind blowing, the effect of shaking the screen, It is.

Item  Example of information classification Background light Weather information (temperature)
winter Red-colored background light summer Blue or white background background light Weather information (wind) If the wind blows Shaking effect using moving function Time (day / night)
Daytime Vivid color-oriented background light Night A dark, glowing background light Sound High volume Background light that is brighter than the inner image

In addition, according to an embodiment of the present invention, the background light may be formed long or short only in a specific region in addition to the image positioned on the inner side as shown in FIG. 5 to impart color flow and directionality.

6 is a view illustrating a background light forming unit 30 according to an embodiment of the present invention,

The background light forming unit 30 includes at least one light emitting device 31 fixedly mounted on a board placed inside the inner casing 34, And a driving driver 35 for driving the light emitting element 31 according to the color and the brightness indicated by the light emitting element 31 by receiving the instruction command generated by the signal processing control unit 20 is provided in the rear stage, And the like.

At this time, a reflection shade is formed on a wall surface of the inner portion 34 so as to irradiate light within a specified range. In some embodiments, a two-axis motor 32 and a motor drive controller 33 are provided at a rear end of the board, It is possible to form the background light while adjusting the position.

Hereinafter, FIG. 7 is a flowchart illustrating an operation procedure of the system according to an embodiment of the present invention. Referring to FIG. 7,

First, a control command is generated according to a button operation of the controller, and when the control command is transmitted to the signal processing controller 20 (S101)

The signal processing control unit 20 operates the image sensor unit 10 and the background light forming unit 30 in an initially set state or remains in the standby state (S102, S103)

At this time, when the projector installed in the auditorium is operated and the content image is distributed on the screen,

The image sensor unit 10 provided on the screen frame acquires light source information including a hue and a luminance value for each area.

In the present invention, when the screen is dimmed and dark, the brightness sensor transmits the fact to the signal processing controller 20 so that the image sensor unit 10 obtains the light source information including the hue and luminance values (S104)

When the light is irradiated onto a specific region, the image sensor unit 10 converts the light source information including the color and brightness of the irradiated light to digital, and then, the image sensor unit 10 reports the converted light source information to the signal processing controller It will be done.

Then, the signal processing controller 20 analyzes the reported light source information to determine what color and luminance values the corresponding light emitting device 31 will operate on (S107, S108)

(S109) and transmits the instruction command to the corresponding background light forming unit (30).

Then, the background light forming unit receiving the instruction command causes the light emitting element 31 installed inside the inner portion 34 to be operated by the drive driver 35 (S110)

The light of the same color or similar color as the color of the image projected on the specific area is scattered around the screen to form the background light (S111)

At this time, the signal processing controller 20 sequentially stores the luminance values and color values secured through the respective image sensor units to form a background light pattern,

The background light pattern stored in the storage unit may be extracted when the image sensor unit is separated and the background light forming unit may form the background light according to the loaded color value and luminance value.

At this time, in the present invention, a control command is generated according to the operation of the controller, and when the control command is received by the interface of the signal processing control unit,

The signal processing control unit generates an instruction command for adjusting the position of the image sensor unit 10 or the background light forming unit 30,

At this time, the image sensor unit 10 or the background light forming unit 30 adjusts the position by driving the motor 32 according to the generated instruction command.

Further, in the present invention, when a control command for controlling the screen is generated according to the operation of the controller and is transmitted to the signal processing control unit 20,

The signal processing controller 20 analyzes the received control command and generates an instruction command for rotating the rotary shaft 3 by a specified number of revolutions.

At this time, the generated instruction command is applied to the motor for controlling the rotation axis, and as the rotation axis is rotated by the movement of the motor, the screen 2 wound around the screen 2 is released or the screen 1 released in the opposite direction is wound, It is also possible to adjust the size of the screen 1 located.

Accordingly, the present invention provides an image sensor unit 10, a signal processing control unit 20, and a background light forming unit 30 in the periphery of a screen or a display panel to form a background light on a screen or panel frame,

It is possible to provide an extended viewing environment connected to an image reproduced by the background light,

In particular, it is possible to form a background light around a digital image even if the image does not conform to DCI (Digital Cinema Initiative) standard or movie standard.

1.2: Screen 3:
4: Fixed frame
10: image sensor unit 11: condenser lens
12: image input sensor 13: image controller
14: Angle adjusting shaft 15: Motor
16:
20: signal processing control unit 21, 22:
23: memory 24: MCU
25: interface 26:
30: background light forming part 31: light emitting element
32: motor 33: motor drive controller
34: Inner part 35: Driving driver
40: sensor

Claims (18)

When the video projector projects a specific image on the screen or when the display panel displays a specific image,
An image sensor unit formed around the screen or the display panel to secure light source information of the image,
And the other side is connected to a plurality of background light forming units, and the light source information reported through the image sensor unit is analyzed to secure color and luminance, and each of the light sources corresponding to each image sensor unit A signal processing control unit for instructing to drive the background light forming unit of the display device according to the analyzed luminance value and color value,
And a background light forming unit for receiving the instruction command of the signal processing control unit to drive at least one light emitting element to form a background light connected to an image displayed through the screen or the display panel outside a frame or a frame of the display panel, Video system The method according to claim 1,
The image sensor unit can be separated from the signal processing controller,
The signal processing control unit may further include a storage unit for sequentially storing the color values and luminance values secured through the image sensor unit for each background light forming unit to form a background light pattern and storing the background light pattern, ≪ / RTI > 3. The method according to claim 1 or 2,
Wherein a frame is formed vertically or horizontally in the frame frame and a receiving portion and an inner portion are formed inwardly inwardly in the vertical direction or in the left and right direction on the outer side of the fixed frame, And a plurality of background light forming parts are fixedly arranged in a line in the inner part of the inner part,
A signal processing control unit having a connector formed on one side and the other side of the fixed frame is provided and the image sensor unit provided inside the receiving portion and the background light forming unit are connected to the connector,
When a content image is projected on the screen, the plurality of image sensor units acquires light source information of the projected image and reports the light source information to the signal processing control unit, and the signal processing control unit The color and luminance are checked and the corresponding background light forming part is driven according to the determined color and luminance value,
And a background light corresponding to an image projected on a screen can be formed even if the image reproduction does not conform to a movie standard while providing an extended viewing environment. 3. The method according to claim 1 or 2,
The image sensor unit includes a reflector for collecting light projected onto a specific area by a condenser lens when projecting an image on a screen,
A condenser lens for collecting light collected by the reflector in one place is installed in the inner center of the reflector,
An image input sensor and an image controller are installed at a predetermined distance from the rear end of the converging lens,
When the light projected on the specific area is collected by the image input sensor by the reflector and the condenser lens, the image input sensor generates light source information including the color and luminance values, converts the generated light source information into digital information, Wherein the background image is displayed on a screen frame by a controller. 5. The method of claim 4,
The image sensor unit includes an angle adjusting shaft formed on one side and the other side of the reflector in a vertical direction or in a lateral direction,
Wherein the angle adjusting axis is rotated by the motor driving and the image sensor unit is provided so as to be able to adjust its position while being rotated in the vertical direction or the left and right direction. 3. The method according to claim 1 or 2,
Wherein the signal processing control unit includes a memory for storing a hue value and a hue value together with a position of a background light forming unit corresponding to each image sensor unit,
When the light source information is reported through the image sensor unit, the information stored in the memory is called to recognize the color and the brightness value, or the operation of the light emitting device is instructed based on the color value and the brightness value extracted from the digitized light source information An MCU,
A connector connected to the plurality of image sensor units and the background light forming unit on one side and the other side of the MCU,
And an interface for receiving a control command in a wired or wireless connection with an external controller. The method according to claim 6,
Wherein the signal processing control unit comprises a motor of an image sensor unit or a motor of a background light forming unit to enable position adjustment. The method according to claim 6,
Wherein the signal processing control unit forms a rotation axis on one side of the fixed frame and fixes the screen on the rotation axis,
And the size of the screen located at the center is adjusted by the winding and unclamping operation of the rotating shaft. The method according to claim 6,
The signal processing control unit may be provided with a sensor for sensing the brightness of the surroundings and connecting the sensor to the signal processing control unit so that the signal processing control unit forms the background light only when the auditorium, And the luminance value of the light emitting element is adjusted. The method of claim 3,
The background light forming unit includes at least one light emitting element fixedly mounted on a board of a flat plate and a drive driver for illuminating the light by driving the light emitting element at a rear end of the board. And an image system for forming background light on a screen frame 11. The method of claim 10,
Wherein the background light forming unit includes a motor for rotating the vertical axis or the horizontal axis at a rear end of the board and a motor drive controller for controlling the motor. Generating a control command instructing to start according to a button operation of the controller and transmitting the control command to the signal processing control unit;
Wherein the signal processing control unit analyzes the transmitted control command and operates the image sensor unit and the background light forming unit in an initially set state or the signal processing control unit is in a standby state,
A step of distributing a content image to a screen as the projector is operated,
The method comprising the steps of: acquiring light source information including a hue and a luminance value for each area of each image sensor unit provided on the screen frame; and reporting the light source information to the signal processing controller,
The signal processing control unit analyzes the reported light source information and determines a corresponding hue and luminance value. The signal processing control unit generates an instruction command that causes the corresponding background light forming unit to operate according to the determined color and luminance value The signal processing control unit transmits an instruction command to the background light forming unit corresponding to each image sensor unit,
The background light forming unit forms the background light by sprinkling light of the same color or similar color as the color of the image projected on the specific area while the light emitting element is operated by the driving driver based on the transmitted instruction command A method of forming a background light including 13. The method of claim 12,
Wherein the signal processing control unit operates the image sensor unit and the background light generating unit in a state in which the signal processing control unit is initially set,
A step of detecting a darkness of a sensor for detecting the brightness of the surroundings when darkened and being darkened, and reporting this to the signal processing control unit;
Wherein the signal processing control unit includes a step of allowing the image sensor unit to obtain light source information including a hue and a hue value. 13. The method of claim 12,
In the image sensor unit,
The light collected by the condenser lens through the reflector is collected by the condenser lens into the image input sensor, so that the light image input sensor generates light source information including the color and luminance value of the corresponding region,
Converting the generated light source information into digital information and reporting the converted light source information to a signal processing controller in the image input sensor and the image control, 13. The method of claim 12,
Generating an instruction command for adjusting the position of the image sensor unit or the background light forming unit according to an operation of the controller and transmitting the generated instruction command to the signal processing controller;
Wherein the signal processing controller receives and analyzes an instruction command and generates an instruction command for position adjustment according to the instruction, and outputting the instruction command to the image sensor unit or the background light forming unit,
Wherein the image sensor unit or the background light forming unit drives the motor according to the received instruction command to move the image sensor unit in the vertical direction or in the lateral direction, 13. The method of claim 12,
Generating a control command for screen adjustment according to the operation of the controller and transmitting the control command to the signal processing controller;
The signal processing control unit analyzes the received control command, generates an instruction command for rotating the rotation axis by a specified number of rotations, applying the instruction command to the motor of the rotation axis,
And a step of enlarging or reducing the size of the screen located at the center while the screen being wound and being unwound as the rotating shaft is rotated by the motor, 13. The method of claim 12,
Wherein the signal processing control unit forms a background light pattern in which a color value and a luminance value secured through an image sensor unit are sequentially stored for respective background light forming units, 18. The method of claim 17,
A step of separating an image sensor unit connected to a connector of the signal processing control unit,
When the same image is restored through the screen or the display panel, the signal processing control unit loads the background light pattern stored in the storage unit,
And driving each of the background light forming units according to a color value and a luminance value of the loaded background light pattern so as to form an image to be reproduced around the screen or the display panel and a subsequent background light,

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