KR101915221B1 - a Transparent mirror display device and a Video transmission system of cloud server using the same - Google Patents

Abstract

The present invention relates to a transparent mirror display device capable of displaying an image and at the same time transmitting a background image and easily supplying an image file, and a cloud-based image transmission system using the same. A transparent mirror display device according to an embodiment of the present invention includes a liquid crystal display panel in which a polarizing panel attached to one or both sides of an existing general LCD display panel is removed, a polarizing plate attached in place of the polarizing panel removed from the liquid crystal display panel, A transparent polarizing film that displays an image displayed on the liquid crystal display panel by the liquid crystal display panel so as to be visually viewable and has higher transmittance than a conventional polarizing plate, A reflection film attached to an outer surface of the high transmittance polarizing film to transmit an image of a color other than a black color displayed on the liquid crystal display panel and to reflect light when the liquid crystal display panel displays black, And a controller for controlling an image displayed on the panel. Therefore, the image displayed on the mirror and the image displayed on the transparent display panel can be synthesized and viewed, thereby enhancing the advertising and promoting effect. By automatically streaming and displaying images on the cloud server, It is possible to solve the problem.

Description

[0001] The present invention relates to a transparent mirror display device and a cloud-based video transmission system using the transparent mirror display device and a video transmission system using the same.

The present invention relates to a transparent mirror display device capable of displaying an image and at the same time transmitting a background image and easily supplying an image file, and a cloud-based image transmission system using the same.

2. Description of the Related Art [0002] In general, a display device is an apparatus for displaying an image. Recently, a transparent display device capable of not only viewing an image but also an outer diameter of the back surface has been disclosed. Techniques using this transparent display device have been actively developed.

An example of a technique using a conventional transparent display device is disclosed in Korean Patent Laid-Open Publication No. 10-2016-0093305 (published on August 8, 2016) as a "transparent display device".

A conventional transparent display device includes a frame including an opening; A transparent display panel disposed in the opening; And a control module disposed in the frame region for controlling the transparent display panel, wherein a frame in which the transparent display panel and the control module are disposed is mounted to cover a front surface of a predetermined product, A door portion of a predetermined product is formed, and is configured to be rotated when the inside of the predetermined product is opened and closed.

Such a conventional transparent display device can advertise a predetermined product accommodated in a frame in a transparent display panel installed in a door and accommodate a predetermined product to be advertised in the frame, there was.

However, in the conventional transparent display device, the inside of the transparent display device is visible, but the display of the image itself is not different from that of the conventional display device, and thus the advertisement promotion effect is deteriorated.

In addition, when a plurality of conventional transparent display devices are installed, there is a problem in that maintenance and management are troublesome because images for displaying each transparent display device must be individually provided.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a display device which not only can be transparent, but also has a function of a mirror to enhance utilization, The present invention provides a transparent mirror display device that easily provides images to a plurality of transparent display devices to facilitate maintenance and management, and a cloud-based image transmission system using the same.

According to an aspect of the present invention, there is provided a transparent mirror display device including a liquid crystal display panel in which a polarizing panel attached to one side or both sides of a conventional LCD display panel is removed, An image display device for displaying images on a liquid crystal display panel by polarized light in such a manner that the image is visually viewable and has higher transmittance than a conventional polarizing panel, A polarizing plate attached to an outer surface of the attached polarizing plate or the transparent polarizing film to transmit an image of a color other than a black color to be displayed on the liquid crystal display panel and to reflect light when displaying the black color on the liquid crystal display panel, A reflective film, and a controller for controlling an image displayed on the liquid crystal display panel do.

The reflection film may be a double brightness enhancement film that transmits only polarized light in one direction and reflects the remaining polarized light until it is changed into polarized light in any one direction.

A casing having a liquid crystal display panel mounted thereon and having a housing space therein, the liquid crystal display panel including a liquid crystal display panel and a liquid crystal display panel, Modules.

The reflective film is attached to the inner surface of the case to reflect light emitted from the light source module.

A body detecting sensor for detecting a person positioned in a direction of displaying an image on the liquid crystal display panel; and a controller for controlling the liquid crystal display Some or all of the panels can be displayed in black.

Wherein the controller includes a tracking unit for tracking all or a part of a body sensed by the body sensor while being displayed in black so as to be viewed by the reflective film in the liquid crystal display panel, It is possible to display images of other colors other than the black color only in the tracked portion according to the movement of the body and to display a composite image pre-set on the body viewed through the reflection film.

And a touch input unit provided on an outer surface of the reflective film to receive a touch signal, wherein the predetermined color image may be an image selected by the touch input unit.

The cloud-based image transmission system using the transparent mirror display device according to an embodiment of the present invention is a transparent mirror display device according to the above-described embodiment, a communication module installed in each of the plurality of transparent mirror display devices, A cloud server connected to the communication module via an Internet network in which images are stored in predetermined locations so as to stream and display images stored in preset locations for the respective transparent mirror display devices; And an administrator terminal.

The controller of the transparent mirror display device may download and load a file including a predetermined location in the cloud server, and may stream the image stored in a predetermined location selected by the user in the loaded file.

According to the present invention, a transparent display device having a mirror function can be manufactured by using a high-transmittance polarizing film and a reflective film, so that the image displayed on the mirror can be synthesized with a preset image, .

In addition, a body detection sensor can be installed and automatically converted into a mirror when the body is detected, and the advertisement can be further improved by tracking the body and displaying a preset image along the moving body.

In addition, a touch input means is provided to allow a spectator to directly select and display an image displayed on the transparent display panel.

In addition, since the transparent mirror display device streams and displays an image uploaded through the administrator terminal, it is advantageous in that it can be easily maintained and managed by image replacement.

1 is an exploded perspective view illustrating a transparent display panel of a transparent mirror display device according to an embodiment of the present invention.
2 is a schematic cross-sectional side view for explaining a double brightness enhancement film which is a reflective film constituting a transparent display panel of a transparent mirror display device according to an embodiment of the present invention.
3 is a perspective view illustrating a transparent mirror display device according to an embodiment of the present invention.
4 is a side cross-sectional view illustrating a transparent mirror display device according to an embodiment of the present invention.
5 is a cross-sectional side view of a transparent mirror display device according to an embodiment of the present invention, showing a modification of the case.
FIG. 6 is a front view illustrating a transparent mirror display device according to an embodiment of the present invention. FIG. 6 is a view showing a composite image of a reflected image and a preset image.
7 is a block diagram schematically illustrating a cloud-based image transmission system using a transparent mirror display device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the transparent mirror display device 100 according to the embodiment of the present invention may include a transparent display panel 110.

The transparent display panel 110 can display an image and transmit the object located at the rear side.

Meanwhile, the transparent display panel 110 may include a liquid crystal display panel 111.

The liquid crystal display panel 111 is not manufactured for use as the transparent display panel 110 but may be a panel from which polarizing panels attached to both sides or one side of a general LCD display panel are removed.

At this time, the polarizing panel attached to a general LCD display panel may be in the form of a plate or a film such as a sheet or a film.

The liquid crystal display panel 111 may be transparent to transmit light, and may include a color filter substrate, a diode substrate, and a polymer liquid crystal layer disposed between the color filter substrate and the diode substrate.

Then, the image of the liquid crystal display panel 111 can be displayed visually by displaying the image by the polarization of the polarizing panel.

On the other hand, since the liquid crystal display panel 111 from which the polarizing panel is removed is transparent, it can be seen through the liquid crystal display panel 111 and the external environment located on the back side.

In addition, the transparent display panel 110 may include a highly transmissive polarizing film 113.

The high transmittance polarizing film 113 may be a polarizing plate having higher transmittance of light than the polarizing plate previously attached to the liquid crystal display panel 111.

On the other hand, the highly transparent polarizing film 113 is attached to the liquid crystal display panel 111 and can display images as the liquid crystal molecules of the liquid crystal display panel 111 transmit or block light according to the arrangement of the liquid crystal molecules.

The high transmittance polarizing film 113 may be provided in place of the polarizing plate removed on one or both sides of the conventional liquid crystal display panel 111.

Here, the highly transparent polarizing film 113 may be formed by removing all the polarizing panels attached to both sides of the liquid crystal display panel 111 or removing only one of them according to the transmittance or polarization axis of the existing attached polarizing film, Lt; / RTI >

At this time, the attached high-transmittance polarizing film 113 can be attached to the liquid crystal display panel 111 such that the polarization axes of the previously attached polarizing plate or the newly attached high-transmittance polarizing film 113 are orthogonal to each other.

It is needless to say that the transparency of the transparent mirror display device 100 becomes higher in proportion to the transmittance of the highly transparent polarizing film 113.

In addition, the transparent display panel 110 may include a reflective film 115.

The reflective film 115 is formed on the transparent display panel 110. The reflective film 115 reflects light when a light source is displayed in the transparent display panel 110, To a mirror.

On the other hand, the reflection film 115 may be attached to the outer surface of the high transmittance polarizing film 113 attached to the liquid crystal display panel 111, or a polarizing plate that has been attached to the liquid crystal display panel 111.

2, the reflection film 115 is formed by stacking a plurality of reflection layers 115b and a plurality of polarization layers 115a to transmit any one of the polarized light P1 in the polarization layer 115a, And may be a double brightness enhancement film that reflects the remaining polarized light and reflects and transmits the polarized light reflected by the reflective layer 115b until the polarized light is converted into polarized light that is transmitted through the polarizing layer 115a.

At this time, the double brightness enhancement film of the reflective film 115 has a high transparency. On the contrary, when the light is shielded in the opposite direction, when the light is blocked due to high reflectance, the mirror has a clearer mirror effect than the conventional transflective mirror In the case where light is provided, the image displayed on the liquid crystal display panel 111 can be clearly viewed because the transmittance is high.

It goes without saying that the polarization axis of the double brightness enhancement film is attached in the same manner as the polarization axis of the high transmittance polarizing film 113 or the polarizing plate to which the reflection film 115 is attached.

3 to 4, the transparent mirror display device 100 according to the embodiment of the present invention may include a case 130. [

The case 130 accommodates the object OB in the interior thereof and allows the viewer to view the image displayed on the liquid crystal display panel 111 together with the object OB to be transmitted through the liquid crystal display panel 111.

The case 130 may have a viewing window 131 on which the liquid crystal display panel 111 is installed and a receiving space 135 for receiving the object OB may be formed in the case 130 .

In the case 130, light is irradiated so that the image displayed on the liquid crystal display panel 111 can be clearly viewed, and at the same time, a function of illuminating the object OB contained in the accommodation space 135 A light source module 170 may be installed.

The light source module 170 may be mounted on a circuit board by arranging a plurality of LEDs and the light source module 170 is installed on the ceiling of the accommodation space 135. However, Is installed on at least one of the inner circumferential surfaces of the accommodating space 135 except for the side facing the transparent display panel 110 in the accommodation space or the sight window 131 where the transparent display panel 110 is installed .

A reflection film 115 for reflecting the light of the light source module 170 and improving the efficiency of the light source module 170 may be attached to the inner circumferential surface of the case 130 except for the transparent window 131, May be the same double brightness enhancement film as the reflective film 115 attached to the transparent display panel 110. [

At this time, the reflection film 170 may be installed on the inner peripheral surface of the receiving space 135, except for the surface on which the viewing window 131 is formed and the peripheral surface to which the light source module 170 is attached, on the remaining inner peripheral surface .

The light source module 170 may include a diffusion plate (not shown). The diffusion plate may be disposed on the front surface of the light source module 170 to diffuse the light uniformly, To the display panel 110.

5, a plurality of viewing windows 131 may be formed on each side of the case 130 in order to observe the object OB contained in the receiving space 135 at all circumferences thereof. A transparent display panel 110 may be installed in one of the viewing windows 131 and a double brightness improving film may be attached to the other viewing window 131.

The reflection film 115 attached to the liquid crystal display panel 111 may be formed so that the polarization axis of the double brightness enhancement film is orthogonal to the polarization axis of the double brightness enhancement film provided in the other windows 131, The outer diameter viewed through the facing window 131 can not be seen by the polarized light but only the object OB contained therein can be seen.

Here, the double brightness enhancement film attached to the remaining viewing windows 131 except for the double brightness enhancement film attached to the liquid crystal display panel 111 has a transmittable surface through which the polarized light P1 passes, When viewed from the outside through the two viewing windows 131, it is converted into a mirror by a surface which blocks the outside diameter by the polarized light and reflects the other polarized light P2, And can be configured to reflect and reflect the shape of the opposite direction.

At this time, since the double brightness enhancement film transmits a certain polarized light P1 and changes the other polarized light P2 until the polarized light P1 is changed to any one of the polarized light P1, the image is repeated in an infinite fashion , As the image reflected by the object to be inspected OB is repeatedly reflected, the brightness is drastically reduced as if the reflection of one object OB is seen, so that the visibility of the object OB can be improved .

3 to 5, the transparent mirror display device 100 according to the embodiment of the present invention may include a body detection sensor 150. [

The body detection sensor 150 can sense a body of a person viewing the image displayed on the liquid crystal display panel 111.

When the body detection sensor 150 is positioned in front of the liquid crystal display panel 111, the body detection sensor 150 can detect the body. The body detection sensor 150 includes an infrared sensor that detects the body by infrared rays, A thermal sensor for sensing, or a camera for sensing and sensing the body.

4 and 5, the transparent mirror display device 100 according to the embodiment of the present invention may include a controller 190. [

The controller 190 may control the liquid crystal display panel 111 and the light source module 170. The controller 190 may include an A / D converter and an inverter.

The controller 190 may control the liquid crystal display panel 111 according to the body detected by the body detection sensor 150 and the controller 190 may include a tracking unit.

When the body detection sensor 150 is implemented by a camera, the tracking unit may analyze an image captured by the camera to track the entire body or a part of the body, and the tracking unit may use various known tracking techniques.

The transparent mirror display device 100 according to the embodiment of the present invention may include touch input means (not shown).

The touch input means may acquire touch coordinates to be touched on an image displayed on the transparent display panel 110 and provide the touched coordinates to the controller 190.

On the other hand, the controller 190 can select an image according to coordinates input from the touch input means and display the selected image on the transparent display panel 110. [

The touch input means may be implemented by a touch panel that generates a touch signal by being pressed on the outer surface of the transparent display panel 110 or an infrared sensor that generates a touch signal according to the distance difference by infrared rays.

The operation and effect between the above-described respective constitutions will be described.

The transparent mirror display device 100 according to the embodiment of the present invention is configured such that a transparent high-polarizing film 113 is attached to increase the transparency of the liquid crystal display panel 111 and a reflective film 115 is attached to the outer surface A transparent display panel 110 is formed.

In the transparent mirror display device 100 constructed as described above, when an image is displayed on the liquid crystal display panel 111 by the controller 190, the liquid crystal display panel 111 is displayed on the liquid crystal display panel 111 The image displayed on the liquid crystal display panel 111 is visually seen by the highly transparent polarizing film 113 or polarizing panel attached to both sides.

The transmittance is increased by the highly transparent polarizing film 113 so that the image displayed on the liquid crystal display panel 111 together with the outer diameter positioned behind the liquid crystal display panel 111 through the liquid crystal display panel 111 can be viewed together . At this time, the light source that can view the image may be natural light.

When the transparent display panel 110 is mounted on the viewing window 131 of the case 130, the transparent display panel 110 (not shown) may be provided with the object OB contained in the receiving space 135 of the case 130, The controller 190 operates the light source module 170 installed inside the case 130 to provide light to the transparent display panel 110 so that a clear image can be viewed At the same time, the object OB can be illuminated to have the illumination effect of the object OB.

In addition, when the transparent display panel 110 is installed in the viewing window 131 of the case 130, the image displayed on the transparent display panel 110 may be an advertisement image related to the object OB.

On the other hand, when the controller 190 detects the body by the body detection sensor 150, the controller 190 controls the transparent display panel 110 to display a black color.

When the transparent display panel 110 displays a black color, the transparent display panel 110 is shaped like a dark film, and the light is prevented from flowing in such a way that the back surface is transparent.

When the light is blocked by the transparent display panel 110, the light reflected by the transparent display panel 110 is reflected by the reflective film 115 attached to the outermost surface of the liquid crystal display panel 111, 110 are converted into mirrors, the viewer's body is reflected on the reflection film 115.

On the other hand, when the body detection sensor 150 is implemented as a camera, the controller 190 tracks the entire body or a part of the body by the tracking unit through the image captured by the camera, A predetermined image PI having a color other than black can be displayed along the part to be tracked on the part of the transparent display panel 110 corresponding to the display area.

That is, the preset image can be displayed to move according to the movement of the body being tracked by the tracking unit.

Of course, the controller 190 may have information on the size of the transparent display panel 110 installed in the transparent window 131, calculate the distance between the camera and the viewer, It is possible to match the image of the spectator in the photographed image and display a preset image PI at the position of the corresponding transparent display panel 110. [

In addition, the preset image PI may be a video selected by the controller 190, and may be an image selected by the viewer through the information inputted by the touch input means.

6, when the predetermined image PI is a bag, the tracking unit tracks the hand, which is a part of the body of the spectator, and displays the bag on the position of the transparent display panel 110 corresponding to the tracked hands. The spectator can view the image of the bag displayed on the transparent display panel 110 by combining the bag image displayed on the transparent display panel 110 with the image of the self reflected by the mirror so as to confirm that the bag itself is holding the bag.

At this time, in the transparent display panel 110, a predetermined image (PI) and a reflection on the transparent display panel 110 may be combined and displayed by excluding the use of a black color in a part of a preset image (PI) .

In another example, when the object OB contained in the receiving space 135 of the case 130 is a color cosmetics, the tracking unit tracks the face of the spectator and displays the tracked face on the transparent display panel 110, The same color as that of the color cosmetics is displayed on the part of the body, so that the user can check his / her own appearance as if it was made of color cosmetics of the OB.

In the embodiment, only the bag and the cosmetic are described. However, the image (MI) reflected on the mirror and the preset image (PI) can be synthesized and displayed according to various advertising purposes such as clothes, accessories,

A transparent display panel 110 is installed only on one of the transparent windows 131 and the reflective film 131 is provided on each of the transparent windows 131 and the transparent display panel 110. In addition, It is possible not only to observe the object OB in the inside of the viewing window 131 but also to observe the viewing window 131 facing the facing viewing window 131 (See FIG. 5) by viewing only the object OB to be received without observing the outer diameter along the crossing of the polarization axes.

Further, when the double brightness enhancement film provided on the viewing window 131 is provided so that the light transmitting surfaces face each other, since the images reflected by each other suddenly become weakened by the polarized light and reflect as if only one is seen, It is possible to improve the degree of concentration according to the sight of the viewer.

Therefore, the transparent mirror display device 100 according to the embodiment of the present invention can display the image displayed on the liquid crystal display panel 111 together with the object OB or the outer diameter positioned on the back surface of the transparent display panel 110 In addition, it is possible to perform the function of the mirror by the reflection film 115 by selectively blocking the light.

In addition, the transparent display panel 110 can perform a function of a mirror while simultaneously displaying a predetermined image PI on a mirror, so that the reflected image MI ) And a preset image PI can be synthesized and viewed.

Hereinafter, a cloud-based image transmission system 200 using a transparent mirror display device 100 according to an embodiment of the present invention will be described.

 As shown in FIG. 7, the cloud-based image transmission system 200 using the transparent mirror display device 100 according to the embodiment of the present invention uses the transparent mirror display device 100 according to the above-described embodiment.

Meanwhile, the cloud-based image transmission system 200 using the transparent mirror display device 100 according to an embodiment of the present invention may include a plurality of transparent mirror display devices 100, and a plurality of transparent mirror display devices 100) can be grouped into any number and grouped according to the place or business category to be installed.

On the other hand, the plurality of transparent mirror display devices 100 may each include a communication module.

The communication module may be a communication module that can be connected to the Internet network 250, and may communicate by wire or wireless.

As shown in FIG. 7, the cloud-based image transmission system 200 using the transparent mirror display device 100 according to the embodiment of the present invention may include a cloud server 210.

The cloud server 210 can access the Internet through the Internet 250 through the communication module of each transparent mirror display device 100. The cloud server 210 can display the image to be displayed in each transparent mirror display device 100 Can be stored in advance.

On the other hand, in the cloud server 210, an image to be displayed in each transparent mirror display device 100 is automatically downloaded or streamed through a communication module, which is stored in a predetermined place accessible by the transparent mirror display device 100, Can be displayed.

Here, the predetermined location may refer to a folder for separately storing the file in which the data is stored in the cloud server 210.

For example, the transparent mirror display device 100, which is grouped into A groups, can automatically download only images stored in the folder A, and can display only images stored in the folder A by streaming.

At this time, the authority to access the cloud server 210 may be stored in advance in each of the transparent mirror display devices 100.

As shown in FIG. 7, the cloud-based image transmission system 200 using the transparent mirror display device 100 according to the embodiment of the present invention may include an administrator terminal 230.

The administrator terminal 230 can access the cloud server 210 and upload a preset image to a preset location.

Meanwhile, the administrator terminal 230 can access the cloud server 210 through the Internet network 250, and can acquire and access rights through the ID and password.

In addition, the administrator terminal 230 uploads a file that can be executed on a web browser such as java, flash, html, or the like in which image information preset in advance in the predetermined place of the cloud server 210 is stored in advance, The image is downloaded from each transparent mirror display device 100 and displayed on the transparent mirror display device 100 and then displayed on the transparent mirror display device 100 by the cloud server 210 according to the information selected by the spectator .

Therefore, the cloud-based image transmission system 200 using the transparent mirror display device 100 according to the embodiment of the present invention can transmit the image displayed by the transparent mirror display device 100 to the predetermined place of the cloud server 210 The image is displayed by streaming for each transparent mirror display device 100 by uploading, thereby eliminating the need for one-by-one image supply to the plurality of transparent mirror display devices 100, thereby facilitating maintenance and management.

In addition, it is possible to minimize the storage space of the transparent mirror display device 100 to reduce the manufacturing cost, as well as download and reproduce executable files in a web browser, and output the images according to the viewer's selection.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

100: transparent mirror display device 110: transparent display panel
111: liquid crystal display panel 113: high permeability polarizing film
115: reflective film 115a: polarizing layer
115b: reflective layer 130: case
131: view window 135: accommodation space
150: body detection sensor 170: light source module
190: controller
200: Cloud-based video transmission system
210: Cloud server 230: Administrator terminal
250: Internet network OB:
MI: reflected image PI: preset image

Claims (9)

A liquid crystal display panel in which a polarizing panel attached to one or both surfaces of an LCD display panel is removed,
A polarizing plate attached to the liquid crystal display panel in place of the removed polarizing plate to display an image displayed on the liquid crystal display panel by polarized light so as to be visually viewable,
Wherein the liquid crystal display panel is attached to an outer surface of the polarizing panel or the highly transparent polarizing film attached to a surface of the liquid crystal display panel to transmit an image of a color other than the black color displayed on the liquid crystal display panel, A reflective film that reflects light when displayed on a screen and becomes a mirror, and
And a controller for controlling an image displayed on the liquid crystal display panel,
Wherein the reflective film is a double brightness enhancement film that transmits only polarized light in one direction and transmits the remaining polarized light while reflecting the polarized light until the polarized light changes in any one direction,
A casing having a liquid crystal display panel mounted thereon and having a housing space therein, the liquid crystal display panel including a liquid crystal display panel and a liquid crystal display panel, Module,
Wherein the reflective film is attached to the inner surface of the case to reflect light emitted from the light source module,
Wherein a polarization axis of a reflection film attached to an inner side surface of the case and a polarization axis of a reflection film attached to the liquid crystal display panel are attached so as to cross each other in an orthogonal direction,
A body detecting sensor for detecting a person positioned in a direction of displaying an image on the liquid crystal display panel; and a controller for controlling the liquid crystal display Displays part or all of the panel in black color,
Wherein the controller includes a tracking unit for tracking all or a part of the body sensed by the body detection sensor while being displayed in black so as to be viewed by the reflective film on the liquid crystal display panel,
The controller displays the image of a predetermined color other than the black color only in the part tracked according to the movement of the body to be tracked, and synthesizes and displays a preset image on the body visible to the reflection film,
A communication module connected to the cloud server and the Internet to stream the image displayed on the liquid crystal display panel in a cloud server stored in a preset location and display or download and display the image;
And an administrator terminal for uploading an image to a predetermined location of the cloud server. delete delete delete delete delete The method according to claim 1,
And a touch input means provided on an outer surface of the reflective film for receiving a touch signal,
Wherein the predetermined image of the other color is the image selected by the touch input means. A plurality of transparent mirror display devices according to claim 1,
And a cloud server for storing an image at a predetermined location to provide an image through the communication module connected to the Internet network. 9. The method of claim 8,
The controller of the transparent mirror display device
A cloud-based image using a transparent mirror display device using a transparent mirror display device, wherein a file including a preset location is loaded and loaded in the cloud server, and an image stored in a predetermined location selected by the user is streamed and displayed in a loaded file Transmission system.

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