KR101746003B1

KR101746003B1 - Transparency Control Panel Module for Security of Display Device

Info

Publication number: KR101746003B1
Application number: KR1020150144051A
Authority: KR
Inventors: 김필남; 김지연
Original assignee: 김필남; 김지연
Priority date: 2015-10-15
Filing date: 2015-10-15
Publication date: 2017-06-12
Also published as: KR20170044401A

Abstract

The present invention relates to a flood control panel module for security of a display device, which performs user authentication by using a flood control panel separately provided from a display device and allows only an authenticated user to use the display device.

Description

[0001] The present invention relates to a light control panel module for security of a display device,

The present invention relates to a light emission control panel module for security of a display device, and more particularly, to a light emission control panel module for performing user authentication by using a light emission control panel separately provided from a display device and allowing only an authenticated user to use the display device And a light emission control panel module for security of a display device.

In the 21st century, important intangible knowledge and information are considered to be more important than physical property of the type, and protecting it has become a very important issue for companies and public institutions.

In recent years, almost all companies have introduced access control systems to control access by outsiders. This control of outsiders is used to access each office from inside the building entrance or inside the building. Here, the access control system is a system that realizes convenient and economical access control by automating access control, access status inquiry, access condition setting, access information management, and system information management in the central system. , And limit individual visitors. In such an entry-entry system, registration of access conditions and deletion of inquiry are managed in software. At this time, a unique ID card is assigned to each individual, and individual access control is performed through the ID card. However, a person who follows each individual using his or her own ID card can pass through a door that is open for a certain period of time without using his / her ID card. In this case, the person who passed the front often does not have a particular interest in the person, which can be a problem when using a large office or when most people are away from lunch or meeting time. At that time, there is a problem that an external intruder can access the personal computer and extract necessary data. Therefore, it is common to set a password in the electronic device itself such as a computer.

The security of such a computer and the like has been made by a program for inputting a password or the like up to now. However, passwords and the like are easily leaked to a third party, the convenience of the user is poor, there is a disadvantage of a user who must periodically reset and memorize them.

Also, the need for only authenticated users to access information that is easily displayed is increasing. For example, in the case of a display device for public institution publication, it is preferable that only an authorized user in the public entity accesses the matters posted on the display device. In this case, when each user inputs a password to the display device and the security is released by the password, a considerable time may be required by driving the internal program, and the password is periodically reset. , And the operator has to worry about the security of the reset password itself.

In addition, when using a computer in a public institution or a computer in a team project unit, only a permitted user group or an authorized user group must be able to access the computer device. In this case, when each user sets a password for each computer, there is an inconvenience in that if a plurality of authenticated users use the same computer at different time zones, Even when a large number of authorized users use a plurality of public computers, it is difficult to memorize the passwords of the respective computers and to reset and secure such memories. That is, the programmable security method based on the conventional password processing inconveniences the user, and is not suitable for situations with special needs.

Also, the security techniques so far have been made by the computer or the terminal itself or by additional processing inside the computer. Specifically, in the related art, security procedures are processed by a computer or a program in a terminal, and in most cases, when an appropriate security key is input, . However, since almost all computers or terminals are connected to a communication network or can be connected by an external input / output port, internal hacking is easy, and security by a program hackes the program itself, .

An object of the present invention is to provide a light control panel module for security of a display device that performs user authentication by using a light control panel separately provided from a display device and allows only an authenticated user to use the display device .

According to an aspect of the present invention, there is provided an information processing apparatus including: an external interface panel receiving user authentication information; A control board for performing identification with respect to the user authentication information; And a light control panel electrically connected to the control board, wherein, when the user authentication information is identified, the control board controls the light control panel such that visual information passing through the light control panel can be recognized from the outside And controls the light projection control panel.

In the present invention, the control board may include an authentication information storage unit for supplying a signal or a voltage for controlling the visual information passing through the light-emission control panel to be recognized from the outside, and storing authenticated user information; An authentication information identification unit for comparing the received user authentication information with authenticated user information stored in the authentication information storage unit to identify the received user authentication information; And an external interface panel input / output unit electrically connected to the external interface panel.

In the present invention, the user authentication information may include identification information of an RFID tag, the external interface panel may include an RFID reader unit receiving identification information of the RFID tag; And a signal output unit for outputting information received from the RFID reader unit to the control board.

In the present invention, the user authentication information may include image information, the external interface panel may include an image sensing unit receiving the image information; And a signal output unit for outputting information received from the image sensing unit to the control board.

In the present invention, the image information may be barcode information including barcode information, QR code, personal biometric information, personal ID, and personal ID.

In the present invention, the user authentication information includes identification information and image information of an RFID tag, the external interface panel includes an RFID reader unit receiving identification information of the RFID tag; An image sensing unit receiving the image information; And a signal output unit for outputting information received from the RFID reader unit and the image sensing unit to the control board.

In the present invention, the user authentication information may further include a password, and the external interface panel may further include a password input unit through which a user can input a password directly.

In the present invention, the light transmission control panel can be controlled to be transparent / opaque by a voltage input from the control board.

In the present invention, the light transmission control panel may be a polymer dispersed liquid crystal. (This part is the same as the claim section.)

In the present invention, the light transmission control panel may include: a first transparent electrode layer; A mixed layer of a polymer matrix and a liquid crystal below the first transparent electrode layer; A second transparent electrode layer under the mixed layer; And the first transparent electrode layer and the second transparent electrode layer may be electrically connected to the control board.

In the present invention, when a voltage is applied from the control board, the molecular orientation of the liquid crystal has regularity, so that the light transmission control panel can have transparency.

In the present invention, the light transmission control panel may include at least one polarizing layer whose polarization is controlled by a voltage input from the control board.

In order to solve the above-mentioned problem, the present invention provides a front bell having a hole therein; A glass layer covering the holes; A flood control panel for controlling the light transmittance of the display light indicated by the glass layer; A display panel for causing display light to enter the light emission control panel; A main board for controlling display information of the display panel; An external interface panel for receiving user authentication information; A control board for performing identification with respect to the user authentication information; And a rear bassel located on the opposite side of the front bell and surrounding the internal components, wherein the display panel is an LED or an LCD display panel, and when the user authentication information is identified, And controls the light projection control panel such that visual information passing therethrough can be recognized from the outside.

In order to solve the above-mentioned problem, the present invention provides a bubble generator having a bubble having a hole therein; A front glass layer covering a hole of the bezel; A light projection control panel for controlling the light transmittance of the display light indicated by the front glass layer; A back glass layer positioned on the opposite side of the front glass layer and surrounding the internal components, and emitting a display light incident on the light projection control panel; An external interface panel for receiving user authentication information; A control board for performing identification with respect to the user authentication information; And a display device coupling unit for detachably attaching the display device to the display device, wherein when the user authentication information is identified, the control board displays a state in which the visual information passing through the light emission control panel can be recognized from the outside And controls the light emission control panel so that the light emission control panel is controlled.

The present invention permits access to a display device by primarily using physical identifiers such as an RFID tag, a barcode, or a QR code rather than a user's individual password input, It is possible to achieve the effect of satisfying operator convenience at the same time.

The present invention is preferably a method for adjusting the light transmittance of the display light itself displayed on the display device, separately from the display device or the processing device (computer or the like) connected to the display device, It is possible to exhibit an effect that it can be operated without giving a load to the load.

The present invention is advantageous in that the risk of hacking from the outside can be completely removed because the display device or the processing device connected to the display device can be distinguished separately.

The present invention primarily requires a physical security medium and can perform an authentication procedure by a plurality of means depending on the user setting, so that the security level can be made higher than that of the prior art Can be exercised.

The present invention can more easily perform security and operation / management when a specific group of users including a plurality of authenticated users use a specific group of computers or the like.

Since the present invention can be additionally provided in an existing display device, the present invention can be easily used in a removable manner without modification of the existing display device or change of electrical connection.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall structural view of a light emission control panel according to the present invention; Fig.
Fig. 2 is a structural view showing the control board of the present invention in detail. Fig.
Figs. 3 to 5 are structural drawings showing first to sixth embodiments of an external interface panel according to the present invention; Fig.
6 is a conceptual diagram for explaining RFID communication;
7 is a side cross-sectional view of a polymer dispersed liquid crystal included in an embodiment of the present invention.
8 is an exploded perspective view of a display device including the light-emission control panel module of the present invention.
FIG. 9 is a view illustrating a detachable display security device including a light control panel module according to the present invention. FIG.

Hereinafter, the present invention will be described in more detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

Fig. 1 shows an overall structure of a light control panel module of the present invention.

As shown in FIG. 1, the light-emission control panel module of the present invention includes an external interface panel 300 receiving user authentication information; A control board (200) for performing identification with respect to the user authentication information; And a light control panel 100 electrically connected to the control board 200. When the user authentication information is identified, the control board 200 can visually check the light passing through the light control panel 100 Controls the light projection control panel 100 so that the information can be recognized from the outside, and preferably controls the light projection control panel 100 in a transparent manner.

The external interface panel 300 may be integrated with the display device (not shown), or may be configured separately from the display device. From the external interface panel 300, the user receives user authentication information for authenticating that the user has a proper authority.

The control board 200 of the present invention may be included in a mainboard 1400 in a computer or a terminal connected to a display device or a display device. Preferably, the control board 200 of the present invention is a control board 200 that controls only the light-emission control panel 100 separately from a computing device such as a computer or a terminal connected to a display device or a display device, Preferably, the control board 200 of the present invention is a control board 200 that is disconnected from the outside and can communicate only with the light-emission control panel 100 and the external interface panel 300. When the control board 200 is configured as described above, it is possible to further reduce the risk of security hacking through the computing device connected to the display device.

2 is a structural diagram showing the control board 200 of the present invention in detail. The control board 200 includes a light control panel control line 210 for supplying a signal or voltage for controlling whether the light transmission control panel 100 is transparent or opaque. An authentication information storage unit 220 for storing authenticated user information; An authentication information identification unit 230 for identifying the received user authentication information by comparing the received user authentication information with authenticated user information stored in the authentication information storage unit 220; And an external interface panel input / output unit 240 electrically connected to the external interface panel 300.

The authentication information storage unit 220 of the control board 200 stores user authentication information of a user having a proper authority. It primarily contains image information such as RFID identification information, barcode or QR code, and, in the second place, it contains a password. In addition to RFID identification information, it can store electrical signal information or electrical data information that can be identified wirelessly or by wire.

The authentication information identification unit 230 of the control board 200 determines whether the information stored in the authentication information storage unit 220 is the information of the user having the right authority by comparing the user authentication information received from the external user interface panel do.

If it is determined by the authentication information identification unit 230 that the user is authorized, the light emission control panel control line 210 controls the light transmittance of the light emission control panel 100. Preferably, if it is determined that the user is authorized, the light emission control panel control line 210 supplies a predetermined range of voltages to the light emission control panel 100. Alternatively, only the light-projected signal from the light-emission control panel 100 may be supplied to the light-emission control panel 100, and the light-transmitting property of the light-emission control panel 100 itself may be controlled.

The external interface panel 300 of the present invention primarily receives physical authentication information. Figs. 3 to 5 show a structural diagram showing the first to sixth embodiments of the external interface panel 300 of the present invention.

3 (a) shows a first embodiment of the external interface panel 300 of the present invention. In the first embodiment, the external interface includes the identification information of the RFID tag. The external interface panel 300 includes an RFID interrogator 310 receiving the identification information of the RFID tag. And a signal output unit 320 for outputting information received from the RFID reader unit 310 to the control board 200. [ In another embodiment of the present invention, the user authentication information may be configured using electrical signal information or electrical data information that can be wirelessly or wirelessly identified other than the identification information of the RFID tag.

The RFID used in the present invention will be briefly described. RFID (Radio Frequency Identification) is a technology that can identify an object, an animal, a person, or the like using a radio frequency (RF). RFID is semi-permanent because there is no obstacle caused by malfunction of the reader, and it is impossible to falsify and modulate the data, so that perfect security can be maintained. In the first embodiment of the present invention, it is possible to easily and simply access a system requiring security using the characteristics of the RFID.

When the user inputs his or her own RFID tag in the non-contact or contact manner to the RFID reader unit 310, the RFID ID information is transmitted to the control board 200 through the signal output unit 320 by the RFID reader unit 310 And the control board 200 determines whether the user has an authorized right through the identification process.

3 (b) shows a second embodiment of the external interface panel 300 of the present invention. In the second embodiment, the external interface includes the identification information of the RFID tag, and the external interface panel 300 includes an RFID reader 310 receiving the identification information of the RFID tag. A signal output unit 320 for outputting information received from the RFID reader unit 310 to the control board 200; And the external interface panel 300 includes a password input unit 330 through which a user can directly input a password.

The password input unit 330 may be a mechanical keypad or a keypad of a touch screen type directly input by a user. The password input through the password input unit 330 is transmitted to the control board 200.

The second embodiment of the present invention can operate in two modes depending on the setting of the user. In the first mode, in order to maintain security even when a user's RFID tag is leaked to a third party, the user inputs the RFID identification information as an RFID tag, and further inputs a password or an RFID tag This mode is for entering a general password. In this case, since the security is maintained in two steps, higher security can be obtained.

In the second mode, when the user performs one of the RFID tag input and the password input, the light emission control panel 100 changes in a light-transmissive manner to allow the user's access. In this case, when the user loses the RFID tag, the display device can be used through the password.

The setting of the above mode can be appropriately set according to the operating environment of the user.

4 (a) shows a third embodiment of the external interface panel 300 of the present invention. In the third embodiment, the user authentication information includes image information, and the external interface panel 300 includes an image sensing unit 340 receiving the image information. And a signal output unit 320 for outputting information received from the image sensing unit 340 to the control board 200.

When the user inputs an identification image tag such as barcode information including his / her identification image such as a barcode, a QR code, personal biometric information, personal ID, and personal ID in a noncontact or contact manner to the image sensing unit 340, The image sensing unit 340 transmits the image identification information to the control board 200 through the signal output unit 320 and determines whether the user has the proper authority through the identification process at the control board 200 .

4 (b) shows a fourth embodiment of the external interface panel 300 of the present invention. In the fourth embodiment, the user authentication information includes image information, and the external interface panel 300 includes an image sensing unit 340 receiving the image information. A signal output unit 320 for outputting information received from the image sensing unit 340 to the control board 200; And the external interface panel 300 includes a password input unit 330 through which a user can directly input a password.

The fourth embodiment of the present invention can operate in two modes depending on the setting of the user. In order to maintain security even when the identification image of the user is leaked to the third party, the first mode is a mode in which the user inputs the image identification information as the identification image, and additionally, This mode is for entering a general password. In this case, since the security is maintained in two steps, higher security can be obtained.

The second mode is a mode in which the light emission control panel 100 changes in a light-transmissive manner and permits the user's access when the user performs one of the identification image input and the password input. In this case, when the user loses the identification image, the display device can be used through the password.

5 (a) shows a fifth embodiment of the external interface panel 300 of the present invention. In the fifth embodiment, the user authentication information includes identification information and image information of an RFID tag, and the external interface panel 300 includes an RFID reader unit 310 receiving identification information of the RFID tag. An image sensing unit 340 receiving the image information; And a signal output unit 320 for outputting information received from the RFID reader unit 310 and the image sensing unit 340 to the control board 200. [

The fifth embodiment of the present invention can operate in two modes depending on the setting of the user. The first mode is a mode for controlling the transmissive control panel 100 to change its transmissive property only when both the RFID tag and the identification image of the user are input in order to have higher security. In this case, in order to maintain security even when either the RFID tag or the identification image is leaked to a third party, the user inputs the RFID identification information as the RFID tag and additionally inputs and inputs his identification image . In this case, since the security is maintained in two steps, higher security can be obtained.

In the second mode, when the user performs one of the RFID tag input and the identification image input, the light emission control panel 100 is changed to light transmissive to permit the user's access. In this case, when the user loses the RFID tag, the display device can be used through the identification image or vice versa.

5 (b) shows a sixth embodiment of the external interface panel 300 of the present invention. In the sixth embodiment, the user authentication information includes identification information of the RFID tag, image information, and a password. The external interface panel 300 includes an RFID reader 310 receiving the identification information of the RFID tag. An image sensing unit 340 receiving the image information; A password input unit 330 through which a user can directly input a password; And a signal output unit 320 for outputting the information received from the RFID reader unit 310, the image sensing unit 340, and the password input unit 330 to the control board 200.

The sixth embodiment of the present invention can operate in a plurality of modes depending on the setting of the user. The first mode is a mode for controlling the transmissive control panel 100 to change to light transmissive only when both the RFID tag, the identification image, and the password are inputted to have higher security. In this case, in order to maintain security even when any one of the RFID tag, the identification image, and the password is leaked to a third party,

Another mode is a mode in which the light emission control panel 100 is changed to light transmissive to permit the user's access when the user performs either the RFID tag input, the identification image input, or the password input. In this case, when the user loses the RFID tag, the display device can be used through the identification image or vice versa.

6 is a conceptual diagram for explaining RFID communication.

RFID (Radio Frequency Identification) is a technology that can identify an object, an animal, a person, or the like using a radio frequency (RF). RFID is semi-permanent because there is no obstacle caused by malfunction of the reader, and it is impossible to falsify and modulate the data, so that perfect security can be maintained.

RFID is based on electromagnetic waves in the frequency range from microwave to longwave. And communicates with the RFID reader through the antenna of the RFID tag based on the information stored in the data storage unit of the RFID tag. An RFID reader can receive information from the RFID tag and transmit it to the necessary equipment. The RFID tag and the RFID used in the present invention correspond to a general-purpose RFID device.

7 is a side sectional view of a polymer dispersed liquid crystal included in an embodiment of the present invention.

Preferably, the light transmission control panel 100 is controlled to be transparent / opaque by a voltage input from the control board 200, and more preferably, the light transmission control panel 100 is a polymer dispersion type liquid crystal.

7, the light transmission control panel 100, which is a polymer dispersed liquid crystal, includes a first PET film layer 110 on an upper portion, a first transparent electrode layer 120 (refer to FIG. 7) below the first PET film layer 110, ); A mixed layer of the polymer matrix 140 and the liquid crystal 130 under the first transparent electrode layer 120; A second transparent electrode layer 150 below the mixed layer; And a second PET film layer 160 under the second transparent electrode layer 150. In another embodiment of the present invention, another transparent material such as a glass layer may be used in place of the PET film layer . In this structure, the first transparent electrode layer 120 and the second transparent electrode layer 150 are electrically connected to an external voltage supply source, the control board 200 in the preferred embodiment of the present invention. The first transparent electrode layer 120 and the second transparent electrode layer 150 are preferably an ITO layer.

In such a polymer dispersed liquid crystal, when the voltage is applied from the control board 200, the molecular orientation of the liquid crystal 130 becomes regular and the mixed layer of the liquid crystal 130 and the polymer matrix 140 becomes transparent And as a result, the light projecting control panel 100 becomes transparent.

Such a polymer dispersed liquid crystal can accurately control the light transmittance only by supplying or not supplying a voltage, and can have sufficient durability.

Alternatively, the light transmission control panel 100 may include at least one polarizing layer whose polarization is controlled by a voltage input from the control board 200. [ Preferably, the light transmittance of the light transmission control panel 100 can be controlled by applying a voltage to two polarizing layers having a polarization property that are perpendicular to each other.

8 shows an exploded perspective view of a display device 1000 including the light emission control panel module of the present invention.

The display device of the present invention includes a front bracelet 1100 having a hole therein; A glass layer 1200 covering the holes; A light projecting control panel 100 for controlling the light transmittance of the display light indicated by the glass layer 1200; A display panel 1300 for making display light incident on the light projection control panel 100; A main board 1400 for controlling display information of the display panel 1300; An external interface panel 300 for receiving user authentication information; A control board (200) for performing identification for the user authentication information; And a rear bellows 1500 located on the opposite side of the front bellows 1100 and enclosing internal components, the display panel 1300 is an LED or LCD display panel 1300, When the user authentication information is identified, the light emission control panel 100 is controlled to be transparent. The light emission control panel 100, the external interface panel 300, and the control board 200 of the display device basically follow the above-described configuration.

Meanwhile, the control board 200 and the main board 1400 may be integrated into one board, and the glass layer 1200 may be a touch panel layer.

According to another embodiment of the present invention, when the glass layer 1200 is not a touch panel layer, the light emission control panel 100 may be disposed on the front side of the front windshield 1100.

The external interface panel 300 preferably includes an input unit capable of receiving information from outside. Preferably, at least one of the RFID reader unit 310, the image sensing unit 340, and the password input unit 330 may be provided, and some or all of the RFID reader unit 310, the image sensing unit 340, And the rearward bellows 1500, as shown in Fig.

The arrangement of the external interface panel 300 is not limited to that shown in FIG. 8, and any form can be used as long as a part of the external interface panel 300 is exposed to the outside.

Alternatively, a part that receives information from outside of the external interface panel 300 and a part that performs association processing with the external interface or an IC circuit may be configured separately, and the part that performs association processing of the external interface or the IC circuit may be controlled Or may be integrally formed with the board 200 or the main board 1400. [

Preferably, the main board 1400 and the control board 200 are not allowed to make direct electrical contact so that they can not communicate with each other. In such a structure, even if a device related to the main board 1400 or the main board 1400 is hacked or damaged, the control board 200 can operate correctly, have.

The display panel 1300 may be an LCD panel having a backlight unit or an LED panel having no backlight unit. The LCD panel or the LED panel may emit display light according to an electrical signal from the main board 1400 .

The generated display light can have visibility to the user only when the display light finally passes through the light emission control panel 100 and can not have visibility to the user when the light emission control panel 100 is in the opaque state.

The main board 1400 may be a main board 1400 for controlling operations of the LCD panel and the LED panel, or a main board 1400 having a processing function and a storage device such as a tablet PC.

9 is a removable display security device 2000 including the light control panel module of the present invention. The detachable display security device 2000 of FIG. 9 includes a bezel 2300 having a hole therein; A front glass layer 2100 covering a hole of the bezel 2300; A light emission control panel 100 for controlling the light transmittance of display light represented by the front glass layer 2100; A back glass layer 2200 located on the opposite side of the front glass layer 2100 to surround the internal components and emit display light incident on the light projection control panel 100; An external interface panel 300 for receiving user authentication information; A control board (200) for performing identification for the user authentication information; And a display device coupling unit 2400 for attaching and detaching the bubble to and from the display device.

In such a configuration, the control board 200 controls the light emission control panel 100 to be transparent when the user authentication information is identified.

The light emission control panel 100, the external interface panel 300, and the control board 200 of the display device basically follow the above-described configuration.

Meanwhile, the control board 200 is preferably disposed in the inner space of the bubble display panel 2300, the front glass layer 2100, and the back glass layer 2200. Alternatively, the control board 200 and the main board 1400 are located in the outer space of the bezel 2300, the front glass layer 2100, and the back glass layer 2200, and the light emission control panel 100 and the control board 200 may be in the form of an electrical connection.

The external interface panel 300 preferably includes an input unit capable of receiving information from outside. Preferably, at least one of the RFID reader 310, the image sensing unit 340, and the password input unit 330 may be provided, and some or all of the RFID reader 310, the image sensing unit 340, As shown in FIG.

In the embodiment shown in FIG. 9, the information recognizing unit 350 is located on the lower front side of the bubble generator 2300, the RFID reader unit 310 or the image sensing unit 340 is disposed in the information recognizing unit, And the password input unit 330 are arranged as a configuration of the password input unit 330. [

The arrangement of the external interface is not limited to that shown in FIG. 8, and any form can be used as long as a part of the external interface is exposed to the outside.

Alternatively, a part that receives information from outside of the external interface panel 300 and a part that performs association processing with the external interface or an IC circuit may be configured separately, and the part that performs association processing of the external interface or the IC circuit may be controlled Or may be integrally formed with the board 200.

Preferably, the control board 200 does not allow direct electrical contact so that the detachable display security apparatus 2000 of the present invention can not communicate with a detached display apparatus or a computing apparatus connected to the display apparatus. In such a structure, even if the display device or the arithmetic unit connected to the display device is hacked or damaged, the control board 200 can operate correctly, and the security can be further improved.

The detachable display security apparatus 2000 of the present invention is coupled by a display apparatus coupling unit 2400 and an unillustrated display apparatus. The coupling method is not limited to the hinge-type configuration shown in FIG. 9, and any conventional coupling-and-detachment-type configuration is possible. Although the display device coupling portion 2400 is detachable, it is preferable that the display device coupling portion 2400 is of a detachable type that is not easily disengaged, for example, detachable with a catch.

The display device may be an LCD-based display device having a backlight unit or an LED-based display device having no backlight unit.

The display light generated in the display device may have visibility to the user only when the display light passes through the light emission control panel 100 of the finally detachable display security apparatus 2000. When the light emission control panel 100 is in the opaque state At the same time, the user can not have visibility. In such an embodiment, when an existing computer or a display device is provided with security, it can be easily detached and operated so that it can be operated by a security officer.

The present invention permits access to a display device by primarily using a physical identifier of an RFID tag, a bar code, or a QR code rather than an individual password input by a user, so that high security, user convenience, and operator convenience Can be satisfied at the same time.

The present invention is a method for adjusting the light transmittance of a display light itself displayed on a display device separately from a display device or a processing device (computer or the like) connected to the display device, so that a load is given to a display device or a processing device connected to the display device It is possible to exhibit the effect that the operation can be performed.

It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

Claims

An external interface panel for receiving user authentication information;
A control board for performing identification with respect to the user authentication information;
A light control panel electrically connected to the control board;
A bassel directly or indirectly coupled to the external interface panel, the control board, and the light emission control panel;
And a display device coupling portion that attaches and detaches the bubble to and from the display device,
Wherein the control board controls the light-emission control panel so that when the user authentication information is identified, the visual information displayed on the display device and passing through the light-emission control panel becomes a state that can be recognized from the outside,
The control board controls the light projection control panel separately from the display device or the calculation device connected to the display device,
The light-
A first transparent electrode layer;
A mixed layer of a polymer matrix and a liquid crystal below the first transparent electrode layer;
A second transparent electrode layer under the mixed layer; / RTI >
Wherein the first transparent electrode layer and the second transparent electrode layer are electrically connected to the control board.

The method according to claim 1,
The control board includes:
A light-emission control panel control line for supplying a signal or a voltage for controlling the visual information passing through the light-emission control panel to be recognized from outside;
An authentication information storage unit for storing authenticated user information;
An authentication information identification unit for comparing the received user authentication information with authenticated user information stored in the authentication information storage unit to identify the received user authentication information; And
And an external interface panel input / output unit electrically connected to the external interface panel.

The method according to claim 1,
Wherein the user authentication information includes identification information of an RFID tag,
Wherein the external interface panel comprises: an RFID interrogator receiving identification information of the RFID tag; And
And a signal output unit for outputting information received from the RFID reader unit to the control board.

The method according to claim 1,
Wherein the user authentication information includes image information,
The external interface panel includes: an image sensing unit receiving the image information;
And a signal output unit for outputting information received from the image sensing unit to the control board.

The method of claim 4,
Wherein the image information is barcode information including barcode information, a QR code, personal biometric information, a personal ID, and a personal ID.

The method according to claim 1,
Wherein the user authentication information includes identification information and image information of an RFID tag,
Wherein the external interface panel comprises: an RFID interrogator receiving identification information of the RFID tag;
An image sensing unit receiving the image information; And
And a signal output unit for outputting information received from the RFID reader unit and the image sensing unit to the control board.

The method according to any one of claims 3 to 6,
Wherein the user authentication information further includes a password,
Wherein the external interface panel further comprises a password input unit through which a user can directly input a password.

The method according to claim 1,
Wherein the light transmission control panel is controlled to be transparent / opaque by a voltage input from the control board.

The method of claim 8,
Wherein the light transmission control panel is a polymer dispersed liquid crystal.

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The method according to claim 1,
Wherein when the voltage is applied from the control board, the molecular alignment of the liquid crystal becomes regular, and the light transmission control panel becomes transparent.

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