KR20080058056A - Security apparatus and method for monitor - Google Patents

Abstract

A device and a method for securing a monitor are provided to perform a screen security function and a power saving function in a monitor by identifying a user based on biometric information received through a user interface when the user wants to use the monitor. An interface board(2) converts various kinds of information received from a PC(1) into a format required by an LCD module(6). A user interface(4) receives biometric information, which is at least one of fingerprint, iris, voice, and face information of the user, and a monitor-on/off signal from a user. A screen security mode executor(5) switches a monitor into a screen security mode when input is not received from the user for a predetermined time in a normal display mode of the monitor or a power-off signal is received from a monitor power switch. The screen security mode executor keeps or switches the screen security mode to the normal display mode depending on the biometric information received from the user interface. A power supply unit(3) supplies power to each parts of a monitor which includes the LCD module.

Description

SECURITY APPARATUS AND METHOD FOR MONITOR}

1 is a block diagram of a security device for a monitor according to the present invention.

2 is a control flowchart of a security method of a monitor according to the present invention;

*** Description of the symbols for the main parts of the drawings ***

1: PC 2: Interface Board

3: power supply unit 4: user interface unit

5: screen security mode execution unit 6: liquid crystal display module

The present invention relates to a security technology for displaying information on a monitor, and in particular, when displaying information on a PC monitor, a monitor for enabling the user to perform screen information security and power saving functions by checking the user based on the user's biometric information. A security device and method are disclosed.

In general, a power saving screen saver in a computer monitor switches the monitor to a screen security mode for security when a user's input operation, ie, a mouse or keyboard input operation, does not occur for a predetermined time. In order to switch it back to the recovery mode, an input action is generated from the user or the user must enter a unique password.

DPMS is an international standard for reducing power consumption of monitors. It is a power management processor that defines four modes in response to the state of Advanced Power Management (APM) that is operated in a computer main body. The four modes mean on, standby, suspend, and off modes. Here, the on mode is a mode in which a video signal input from a computer through a connector connected to the computer is normally input and displayed on the screen, and all power supplies are normally operated. In the standby mode, a video signal input to a computer through a connector is blanked so that nothing is displayed on the screen, and only a minimal amount of power is supplied to save power. The suspend mode is a state in which a video signal input through a connector is blanked so that nothing is displayed on the screen, and only a part of power is supplied to maximize power saving. The off mode is a mode in which no power is consumed with all powers completely off.

The screen saver or DPMS type monitor (screen) security and power saving mode are operated after monitoring the user's input operation for a certain period of time, so that no immediate monitor security operation is performed, especially in the screen saver mode for security. There was always the hassle to enter a password to return to.

For example, the screen security function provided by the OS does not work until at least one minute has elapsed, and the user is in danger of data leakage if the user is in a hurry.

Accordingly, a first object of the present invention is to provide a security device for performing a screen security mode and a power saving mode by identifying a user based on biometric information of a user input through a user interface when using a PC monitor.

It is a second object of the present invention to provide a security method for performing a screen security mode and a power saving mode by identifying a user based on biometric information of a user input through a user interface when using a PC monitor.

The present invention for achieving the first object is an interface board for converting a variety of information supplied from the PC into a format required by the liquid crystal display module; A user interface unit configured to receive a user's biometric information and a monitor's on / off signal; The user's biometric information input from the user interface unit after the monitor is switched to the screen security mode when the user's input operation does not occur for a predetermined time or when the power switch on the monitor occurs. A screen security mode performing unit for continuously maintaining the screen security mode or switching to the original use mode based on the operation; Characterized in that the liquid crystal display module for displaying the output information of the interface board supplied through the screen security mode performing unit on the screen.

The present invention for achieving the second object is to put the monitor into the screen security mode when the user's input operation does not occur for a predetermined time or the power switch on the monitor occurs when the monitor is being driven in the normal display mode Converting process; If the user's input operation occurs in the state of being switched to the screen security mode or if the power switch on operation occurs on the monitor, receiving biometric information of the user and checking whether the biometric information is correct; And switching to or from the original use mode according to whether or not the input biometric information is correct information.

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

1 is a block diagram showing an embodiment of a security device for a monitor according to the present invention, and as shown therein, a PC 1 for outputting various information such as a picture and a document; An interface board 2 for converting various types of information supplied from the PC 1 into a format required by the liquid crystal display module 6; A power supply unit 3 for supplying a voltage required by each unit of the monitor including the liquid crystal display module 6; A user interface unit 4 for receiving biometric information such as a fingerprint, an iris, a voice, a face, and an on / off signal of the user; When the user's input operation does not occur for a certain period of time while the monitor is operating in the normal display mode or when the power switch off operation occurs, the screen security mode and power saving mode (hereinafter referred to as 'screen security mode') A screen security mode performing unit (5) which maintains the screen security mode or switches to the original normal display mode based on the biometric information of the user inputted from the user interface unit 4 after the switching; According to the output information of the interface board (2) supplied through the screen security mode performing section 5, it consists of a liquid crystal display module 6 for displaying the corresponding information by driving the liquid crystal cells arranged in a matrix form, When described in detail with reference to Figure 2 attached to the operation of the present invention configured as described above are as follows.

The computer 1 outputs various information such as a picture or a document read through a hard disk or other recording medium or the Internet to the monitor side according to a user's request. Here, the monitor means a display device including the liquid crystal display module 6.

The interface board 2 converts the information supplied from the PC 1 into a format required by the liquid crystal display module 6 and outputs the converted information.

The liquid crystal display module 6 drives the liquid crystal panel through an internal gate driver and a data driver to display information supplied through the interface board 2 on a screen of the liquid crystal panel.

In this state in which the monitor is normally driven, the screen security mode execution unit 5 checks whether a user input operation, that is, a mouse or keyboard input operation does not occur for a predetermined time, or the power switch on the monitor is turned off by the user. (S1-S3)

If the user's input operation does not occur for a certain period of time, or if the power switch on the monitor is turned off by the user and an off signal is input, the monitor is set to the screen security mode for security of the screen information displayed on the monitor. Switch to At this point, the monitor is turned off and no information is displayed on the screen (S4).

Then, check if the user takes an input action to use the monitor again. In other words, check whether the mouse or keyboard input operation occurs by the user or the power switch on the monitor is turned on (S5).

As a result of the check, if it is found that the user takes an input operation to use the monitor again, the biometric information of the user is input through the user interface unit 4 to check whether the biometric information is correct. Here, there may be various kinds of biometric information, for example, biometric information such as a user's fingerprint, iris, voice, and face. (S6, S7)

As a result of the check, if the input biometric information is found to be incorrect biometric information, the user is not allowed to continue using the monitor since the user is not allowed to switch to the return mode. At this time, the message "The monitor cannot be used because the biometric information does not match on the screen." (S8, S9)

If the input biometric information is found to be incorrect biometric information, the biometric information may be re-input through the above-described process continuously for a preset number of times (for example, three times).

However, as a result of the check, if the input biometric information is found to be correct biometric information, the user is allowed to switch to the return mode, so that the user can continue to use the monitor again (S10).

As a result, from the user's point of view, when the PC 11 is used while being away, the screen is switched to the screen security mode by turning off the power switch on the monitor.

Of course, as described above, even if the user leaves the seat without taking any action, the screen is automatically switched to the screen security mode because the input operation is not performed for a predetermined period of time. Since the transition to the screen security mode does not occur until the time elapses, the screen security and power saving functions are not performed.

Thereafter, the user returns to the original position and turns on the power switch on the monitor, that is, presses it again to return the monitor to the original information display state so that the monitor can continue to be used.

As described in detail above, the present invention checks the user based on the user's biometric information when using the PC monitor, and determines whether to switch to the screen security mode and the power saving mode according to the check result, thereby displaying on the monitor. The security of the information to be further enhanced, there is an effect that can prevent unnecessary waste of power.

Claims (7)

An interface board for converting various types of information supplied from the PC into a format required by the liquid crystal display module; A user interface unit configured to receive a user's biometric information and a monitor's on / off signal; A user input from the user interface unit after switching the monitor to the screen security mode when the user's input operation does not occur for a predetermined time while the monitor is operating in the normal display mode or when the power switch on the monitor occurs. A screen security mode performing unit which continuously maintains the screen security mode or switches to the original use mode based on the biometric information; And a liquid crystal display module for displaying output information of the interface board supplied through the screen security mode performing unit on a screen. The security apparatus of a monitor according to claim 1, wherein the on-off signal of the monitor is a signal generated when a power switch of the monitor is turned off by a user. The security apparatus of claim 1, wherein the biometric information includes at least one of fingerprint, iris, voice, and face information of the user. The apparatus of claim 1, wherein the user's input operation is a data input operation through a mouse or a keyboard. The security device of a monitor according to claim 1, wherein the screen security mode is in a off state. A first step of switching the monitor to a screen security mode when a user's input operation does not occur for a predetermined time or a power switch off operation occurs on the monitor while the monitor is being driven in a normal display mode; A second step of checking whether the user's input operation occurs after switching to the screen security mode or if the user's power switch-on operation occurs on the monitor and receiving the user's biometric information to determine whether the biometric information is correct; And a third process of switching to the original normal display driving mode or prohibiting the switching according to the authenticity of the input biometric information. The method of claim 6, further comprising repeating at least two or more steps of receiving the biometric information of the user and confirming whether the biometric information is correct.

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