KR20230019781A - Apparatus and method for decressing power comsumption of display device of computer - Google Patents

Abstract

The present specification relates to a technology for reducing a power consumption of a display device. Specifically, the present invention relates to a device and method for reducing the power consumption of the display device of a computer capable of determining a program being executed on the computer, and reducing the power consumption of the display device by reducing a display brightness by applying a different reduction ratio according to a type of program. The device for reducing the power consumption of the display device of the computer comprises: a program discrimination part; a brightness control part; and a brightness adjustment part.

Description

Apparatus and method for reducing power consumption of display device of computer

The present invention relates to a technology for reducing power consumption of a display device, and more particularly, it is possible to reduce power consumption of a display device by determining a program running on a computer and applying a different reduction ratio according to the type of program to reduce display brightness. It relates to an apparatus and method for reducing power consumption of a display device of a computer having a computer.

Computers such as desktop computers and portable computers (eg, laptops, laptops, etc.) are composed of a main body that performs calculations and a display device that displays calculation results.

These computers are used so much that it is difficult to count the number of computers, from one to many, in restaurants and homes as well as in businesses. Computers are already popular enough to say that it is extremely rare to have a computer at home or at work.

Computers are powered on or off by the user's operation of the power switch, and it is cumbersome for users to turn on the computer whenever they are in use and turn it off when not in use. It is commonplace. Therefore, power is wasted when not in use.

In order to prevent such a waste of power, the computer has a power saving mode, detects keyboard input, etc., and automatically performs a power saving function when there is no keyboard input for a certain period of time to prevent power waste.

In addition, as another power saving method, there is also a method of installing an illuminance sensor or a human body sensor, controlling power saving according to the amount of light or detecting a human body, or setting a separate function for power saving in software to implement power saving.

Prior art for computer power saving has been disclosed in <Patent Document 1> to <Patent Document 3> below.

The prior art disclosed in <Patent Document 1> (Korean Patent No. 10-16230898, registered on May 20, 2016) is a DVI (Digital Visual Interface) signal output from the main body to the monitor and a power supply device (eg, SMPS) of the monitor. ) to detect the off mode accurately by using multiple signal outputs, and to cut off all signal outputs when the off mode is detected, thereby providing a power consumption reduction device for one monitor to reduce power consumption to the maximum.

The prior art disclosed in <Patent Document 2> (Republic of Korea Patent Publication No. 10-2012-00840057, published on July 27, 2012) includes a communication unit, a control unit executing a power saving program according to power saving policy information, a collection unit collecting reference information, and power saving. It includes a determination unit and a storage unit for determining whether to enter the power saving mode, and the computer performs the power saving mode under the control of the power saving management server by being connected to the power saving management server through a network.

In the prior art disclosed in <Patent Document 3> (Korean Patent Registration No. 10-1330212, registered on November 11, 2013), a monitor and a computer system communicate with each other through a display data channel command interface (DDC-CI) through SCL (Serial Clock) and SDA. (Serial Data Line) signals are exchanged to power off the computer system as a power saving mode operation event according to power off of the monitor, and release the power of the monitor through a power saving mode release event according to the computer system being released.

However, in the general computer system and the prior art as described above, although the monitor itself can save power by interlocking with the computer body, it is impossible to reduce power consumption depending on the type of work program executed in the computer body.

Embodiments disclosed in this specification determine a program running on a computer and apply a different reduction ratio according to the type of program to reduce the display brightness step by step to reduce the power consumption of the display device of the computer. It is a technical task to provide a power reduction device and method.

In addition, as a technical task, embodiments of the present invention provide an apparatus and method for reducing power consumption of a display device of a computer capable of reducing power consumption of a display device by gradually reducing the display brightness by applying a different reduction time according to the type of program. do.

In addition, the embodiments may provide an environment (customizing service) suitable for the user by allowing the user to set the reduction ratio and the reduction time for the display brightness.

In addition, the embodiments are to provide a power consumption reduction device and method of a display device of a computer to achieve optimal power saving by turning off all power consumption of the monitor except for the main body interface in a screen save mode in which the same screen is continuously displayed. as a technical challenge.

In addition, embodiments reduce PC booting time by opening a startup program selection window when booting a PC and allowing the user to select a startup program to be executed at booting, thereby reducing power consumption of a display device of a computer to reduce power consumption It is a technical task to provide an apparatus and method.

In addition, the embodiments are to provide a power consumption reduction device and method of a display device of a computer to reduce power consumption by minimizing program execution by checking a program that has been inactive for a long time and forcibly terminating or popping up a standby selection window. as a technical challenge.

The technical problem of the present invention is not limited to the above-mentioned matters, and from the following description, those of ordinary skill in the art to which the present invention belongs will be able to clearly understand other problems intended by the present invention. .

As a technical means for achieving the above-described technical problem, an apparatus for reducing power consumption of a display device of a computer according to an embodiment of the present invention is configured in a computer body, obtains information about an executable program on a computer operating system, and executes A program determination unit for outputting an event generation signal corresponding to a group to which a program belongs, a brightness control unit configured in the computer body and outputting a power control signal corresponding to the event generation signal when an event generation signal is received, and a display device. , a brightness control unit for reducing power consumption of the display device by gradually reducing the brightness of the display in response to the power control signal upon receipt of the power control signal.

According to an embodiment, the program determining unit compares the extension information of the execution program with the extension information for each group to determine the group to which the execution program belongs, and identifies an event generation signal corresponding to the group in the event generation signal information for each group to generate an event. signal can be output.

According to an embodiment, the program determining unit outputs a first default signal to the brightness control unit when there is no group to which the execution program belongs, and when the brightness control unit receives the first default signal, the brightness control unit adjusts the display brightness to the preset brightness. 2 default signals are output, and the brightness control unit may maintain or restore the display brightness to a preset brightness in response to the second default signal.

According to an embodiment, the brightness control unit checks the reduction ratio and time in the reduction ratio and time information for each event generation signal when an event generation signal is received, and controls power to gradually reduce the display brightness according to the identified reduction ratio and time. signal can be output.

According to one embodiment, the reduction rate and time may be set differently for each event generation signal.

According to an embodiment, the program determination unit outputs a first event generation signal when the execution program belongs to the first group including document program extension information, and outputs a signal for generating a first event when the execution program belongs to the second group including video program extension information. A second event generation signal may be output.

According to an embodiment, the brightness control unit outputs a power control signal for reducing display brightness according to a first reduction ratio and a first reduction time when receiving a first event generation signal, and when receiving a second event generation signal, a second A power control signal for reducing display brightness according to the reduction ratio and the second reduction time may be output.

According to one embodiment, the first reduction rate is lower than the second reduction rate, and the first reduction time may be shorter than the second time.

According to one embodiment, the main body may include a startup program selection unit that displays a window for selecting a startup program when booting a PC and, when a user selects a startup program to be executed during booting, executes only the selected startup program when booting the PC. there is.

According to an embodiment, the main body may include a program force termination unit that reduces power consumption by minimizing program execution by checking a program that has been inactive for a long time, forcibly terminating the program, and displaying a standby selection window.

According to an embodiment, the monitor may include a monitor power control unit that reduces power consumption by analyzing screen data transmitted from the main body and turning off all power consumption of the monitor except for an interface with the main body when the screen is in a screen protection state.

A method for reducing power consumption of a display device of a computer according to an embodiment of the present invention includes step (a) of acquiring information about an executable program on a computer operating system by a program determining unit configured in a computer main body, Step (b) of determining whether the program belongs to a group and outputting an event generating signal corresponding to the group to which the execution program belongs. It may include a step (c) of outputting, and a step (d) of reducing power consumption of the display device by gradually reducing the brightness of the display by a brightness control unit configured in the display device in response to the power control signal.

According to an embodiment, a window for selecting a startup program when booting the PC is displayed at the front end of the step (a), and when the user selects a startup program to be executed at booting, only the selected startup program is executed when the PC boots ( f) may include step.

According to an embodiment, in step (b), the group to which the executable program belongs is determined by comparing the extension information of the executable program with the extension information for each group, and an event generation signal corresponding to the group is identified in the event generation signal information for each group. and outputting an event generation signal.

According to an embodiment, in a method for reducing power consumption of a display device of a computer, if there is no group to which an execution program belongs, the program determination unit outputs a first default signal to the brightness control unit, and the brightness control unit adjusts the display brightness to a preset brightness. and (e) maintaining or restoring the display brightness to a preset brightness by outputting a second default signal to enable the brightness of the display to be set.

According to an embodiment, step (c) is to check the reduction rate and time in the reduction rate and time information for each event generation signal when the event generation signal is received, and to gradually reduce the display brightness according to the confirmed reduction rate and time. It may include outputting a power control signal.

According to one embodiment, the reduction rate and time may be set differently for each event generation signal.

According to an embodiment, step (b) outputs a first event generation signal when the execution program belongs to the first group including document program extension information, and outputs a signal for generating the first event when the execution program belongs to the second group including video program extension information. Including outputting a second event generation signal when belonging,

According to an embodiment, step (c) outputs a power control signal for reducing display brightness according to a first reduction ratio and a first reduction time corresponding to a first event generation signal, and corresponding to a second event generation signal. It may include outputting a power control signal for reducing the display brightness according to the second reduction ratio and the second reduction time.

According to one embodiment, the first reduction rate is lower than the second reduction rate, and the first reduction time may be shorter than the second time.

According to an embodiment, it may include a step (g) of searching for inactive programs and forcibly terminating the program if there is a program that is not in use for a predetermined period of time or more, and displaying the forcibly terminated program on a standby selection window. there is.

Specific details according to various examples of the present invention other than the means for solving the problems mentioned above are included in the description and drawings below.

Embodiments described herein provide an apparatus and method for reducing power consumption of a display device of a computer that can reduce power consumption of a display device by gradually reducing the display brightness by applying a different reduction ratio according to the type of program running on the computer. can provide

In addition, the embodiments may provide a device and method for reducing power consumption of a display device of a computer capable of reducing power consumption of a display device by gradually reducing the display brightness by applying a different reduction time according to the type of program.

In addition, since the reduction ratio and reduction time for display brightness can be set by the user, it is possible to provide a display environment (customizing service) suitable for the user.

In addition, the embodiments have an effect of reducing PC booting time by popping up a startup program selection window when booting the PC and allowing the user to select a startup program to be executed at booting, thereby reducing power consumption.

In addition, the embodiments have an effect of reducing power consumption by minimizing program execution by checking a program that has been inactive for a long time, forcibly ending it, or popping up a standby selection window.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Since the contents of the problem to be solved, the means for solving the problem, and the effect mentioned above do not specify essential features of the claims, the scope of the claims is not limited by the matters described in the contents of the invention.

1 is a diagram showing an example of a computer to which an apparatus for reducing power consumption of a display device of a computer according to an embodiment of the present invention is applied.
2 is a diagram showing an example of a device for reducing power consumption of a display device of a computer according to an embodiment of the present invention.
3 is a flowchart illustrating a method of reducing power consumption of a display device of a computer according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and those skilled in the art in the art to which the present invention belongs It is provided to fully inform the person of the scope of the invention, and the invention is only defined by the scope of the claims.

Since the shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiment of the present invention are exemplary, the present invention is not limited to the matters shown. Like reference numbers designate like elements throughout the specification. In addition, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. When "comprises," "has," "consists of," and the like mentioned in this specification are used, other parts may be added unless "only" is used. In the case where a component is expressed in the singular, the case including the plural is included unless otherwise explicitly stated.

In interpreting the components, even if there is no separate explicit description of the error range, it is interpreted as including the error range.

In the case of a description of a positional relationship, for example, when the positional relationship of two parts is described as “on top,” “upper,” “lower,” “next to,” etc., for example, “right” Or, unless "directly" is used, one or more other parts may be located between the two parts.

In the case of a description of a temporal relationship, when a temporal precedence relationship is described with “after,” “next to,” “next to,” “before,” etc., continuous unless “immediately” or “directly” is used. It may also include cases where it is not.

Although first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, the first component mentioned below may also be the second component within the technical spirit of the present invention.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the corresponding component is not limited by the term. When an element is described as being "connected," "coupled to," or "connected to" another element, that element is directly connected or capable of being connected to the other element, but indirectly unless specifically stated otherwise. It should be understood that other components may be “interposed” between each component that is or can be connected.

“At least one” should be understood to include all combinations of one or more of the associated elements. For example, "at least one of the first, second, and third elements" means not only the first, second, or third elements, but also two of the first, second, and third elements. It can be said to include a combination of all components of one or more.

Each feature of the various embodiments of the present specification can be partially or entirely combined or combined with each other, technically various interlocking and driving are possible, and each embodiment can be implemented independently of each other or can be performed together in an association relationship. may be

Hereinafter, looking at the embodiments of the present invention through the accompanying drawings and embodiments are as follows. Since the scales of the components shown in the drawings have different scales from actual ones for convenience of explanation, they are not limited to the scales shown in the drawings.

Hereinafter, an apparatus and method for reducing power consumption of a display device of a computer according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a diagram showing an example of a computer to which a device for reducing power consumption of a display device of a computer according to an embodiment of the present invention is applied, and FIG. 2 is an example of a device for reducing power consumption of a display device of a computer according to an embodiment of the present invention. is a drawing showing

1 and 2, a device for reducing power consumption of a display device of a computer according to an embodiment of the present invention (hereinafter, a device for reducing display power consumption) includes a program determination unit 110, a setting unit 120, and a brightness control unit. 130, a start program selection unit 140, a program forced termination unit 150, a brightness control unit 310, and a monitor power control unit 330, the configuration of the display power consumption reduction device is limited to this It is not.

For example, the program determination unit 110, the setting unit 120, the brightness control unit 130, the start program selection unit 140, and the forced program end unit 150 are configured in the computer body 1 and adjust the brightness. The unit 310 and the monitor power controller 330 may be configured in the display device 3 that is a monitor, and the computer body 1 and the display device 3 may be connected through the interface 2.

The program determination unit 110 obtains information (execution program information) on a program (execution program) executed on a computer operating system (OS), determines the type of program, and generates an event signal corresponding to the type of program. (or brightness control signal) can be output.

For example, the program determining unit 110 outputs a first event generation signal when a program belongs to a first group (eg, a document program group), and outputs a first event generation signal when a program belongs to a second group (eg, a video program group). Like outputting the second event generating signal, different event generating signals may be output for each group.

For example, the program determination unit 110 may obtain execution program information from a Windows task manager, but is not limited thereto, and obtain execution program information according to the type of operating system installed in the computer body 1. How to do it may be different.

When there are several executable programs on the computer operating system, the program determination unit 110 may obtain information on the activated executable program, and compare the pre-stored program classification criterion information with the executable program information to determine the type of the executable program. can be identified.

To this end, the program determining unit 110 may store extension information for each group and event generation signal information for each group, compare extension information of the execution program with extension information for each group, determine the group to which the execution program belongs, and , an event generation signal corresponding to the group can be output.

For example, the program determination unit 110 manages document program-related extension information (document program extension information) (ex, hwp, doc, txt, gul, ppt, xlsx, etc.) as a first group, and video program-related extensions Information (video program extension information) (ex, avi, mp4, m4v, wmv, mkv, mov, etc.) is managed as a second group, and image program-related extension information (image program extension information) (ex, bmp, jpeg, gif , png, tif, etc.) can be managed as a third group, but is not limited thereto.

The setting unit 120 may receive extension information for each group and event generation signal information for each group and provide the received information to the program determination unit 110. Accordingly, the program determination unit 110 may receive extension information for each group and event occurrence signal information for each group. Each event generation signal information can be stored.

The setting unit 120 may receive setting information (display brightness setting information) for the brightness of the display device 3 and provide it to the brightness control unit 130. Accordingly, the brightness control unit 130 may transmit the display brightness setting information. can be saved.

The setting unit 120 may receive the reduction ratio and time information for each event occurrence signal as display brightness setting information and provide the information to the brightness control unit 130, and the brightness control unit 130 may provide the reduction ratio and time information for each event occurrence signal. can be saved

For example, a reduction ratio and a reduction time for display brightness may be set differently according to an event generation signal.

For example, in the case of a document program, even if the display brightness is lower than that of a video program, the user's inconvenience is less and it is not sensitive to changes in display brightness, so the reduction rate related to the document program is lower than the reduction rate related to the video program, and the reduction time related to the document program is lower than that of the video program. It may be shorter than the program-related abatement time.

Since the event generation signal differs according to the type of an executing program, the reduction ratio and reduction time of the display brightness may be set differently depending on the type of the executing program. That is, display brightness may vary depending on the type of program.

The program determining unit 110 may output a default signal to the brightness controller 130 when it is determined that the execution program is not included in the preset group.

When receiving an event generation signal from the program determining unit 110, the brightness controller 130 may output a power control signal for reducing display brightness to the display device 3 in response to the event generation signal.

Depending on the embodiment, the brightness control unit 130 may output a power control signal for gradually (or sequentially) reducing the display brightness based on preset display brightness setting information to the display device 3 .

For example, the brightness control unit 130 may output a power control signal for gradually reducing the display brightness from the current brightness to the reduction ratio over a set reduction time.

For example, if the current display brightness is 100%, the reduction ratio is set to 50%, and the reduction time is set to 5 seconds, the brightness control unit 130 provides power to gradually reduce the display brightness to 50% over 5 seconds. A control signal can be output. For example, the brightness control unit 130 may output a power control signal for gradually reducing the display brightness by 90%, 80%, 70%, 60%, and 50% over 5 seconds. it is not going to be

Depending on the embodiment, the brightness control unit 130 may output a power control signal for gradually reducing the display brightness to the display device 3 according to preset reduction ratios and time information for each event generation signal.

That is, the brightness controller 130 checks the reduction ratio and time corresponding to the event occurrence signal from the program determination unit 110 in the reduction ratio and time information for each event occurrence signal, and displays brightness according to the checked reduction ratio and time. A power control signal for stepwise reduction of ? can be output to the display device 3.

For example, the current display brightness is 100%, the reduction rate and time corresponding to the first event generation signal are set to 50% and 5 seconds, and the reduction rate and time corresponding to the second event generation signal are 70% and 3 seconds, and assuming that the reduction ratio and time corresponding to the third event generation signal are set to 30% and 7 seconds, the brightness controller 130 may operate as follows.

Under the above assumption, upon receiving the first event generating signal, the brightness controller 130 outputs a power control signal for gradually reducing the display brightness from 100% to 50% over 5 seconds, and outputs a second event generating signal. is received, a power control signal is output to gradually reduce the display brightness from 100% to 70% over 3 seconds, and when a third event generation signal is received, the display brightness is gradually reduced from 100% to 30% over 7 seconds. It is possible to output a power control signal for reducing to .

Upon receiving the default signal from the program determination unit 110, the brightness control unit 130 may output a default signal for maintaining or restoring the display brightness to a preset brightness to the display device 3. That is, the default signal is a signal for making the display screen brightness equal to the set brightness.

For example, when receiving a default signal from the program determination unit 110, the brightness control unit 130 may output a default signal for gradually increasing the display brightness to a preset brightness.

The interface 2 is a component connecting the computer body 1 and the display device 3, and may be, for example, DDC (Display Data Channel)/CI (Command Interface), but is not limited thereto. For example, the interface 2 may connect the brightness controller 130 configured in the computer body 1 and the brightness controller 310 configured in the display device 3 .

When receiving a power control signal through the interface 2, the brightness control unit 310 can reduce power consumption by reducing power supplied to the display unit 320 according to the power control signal.

For example, the brightness control unit 310 may gradually (or sequentially) reduce the brightness (display brightness) of the display unit 320 according to a power control signal from the brightness control unit 130 (power saving mode). ).

For example, the brightness control unit 310 may gradually reduce the brightness of the display unit 320 from the current brightness to the reduction rate over a reduction time according to a power control signal from the brightness control unit 130 .

In addition, when a default signal is received through the interface 2, the brightness control unit 310 may set the display brightness to a preset brightness (or previous set brightness) according to the default signal (normal mode).

For example, when the current display brightness is the set brightness, the brightness control unit 310 can maintain the display brightness at the current set brightness based on a default signal from the brightness control unit 130 . That is, the brightness of the display can be maintained at the currently set brightness by the brightness control unit 310 .

For example, when the current display brightness is reduced according to a previous power control signal and power consumption is reduced, the brightness control unit 310 adjusts the display brightness to the previous setting based on the default signal from the brightness control unit 130. can make it brighter. That is, the display brightness may be restored to the previously set brightness by the brightness control unit 310 .

According to an embodiment, when the current display brightness is reduced according to the previous power control signal and thus the power consumption is reduced, the brightness control unit 310 adjusts the display brightness to the previous one based on the default signal from the brightness control unit 130. You can increase the brightness step by step up to the set brightness.

Depending on the type of display device 3, a method for the brightness control unit 310 to control the brightness of the display unit 320 (or display brightness) may be changed. That is, a method for the brightness control unit 310 to control the brightness of the display unit 320 may be different depending on the type of the display device 3 .

For example, the display device 3 may be a display device such as a liquid crystal display device (LCD) or an organic light emitting display device (OLDE), and may be a flat or curved display device. can

Meanwhile, in order to further reduce the power consumption of the computer system as described above, the present invention controls the execution of a starting program, forcibly terminates a program that has not been used for a long time, or converts a program to a standby selection window to reduce unnecessary power consumption.

For example, the start program selection unit 140 displays a window for selecting a start program when the PC is booted. Here, the more startup programs there are at boot time, the slower the boot time. Boot time consequently affects the consumption of power consumption. Therefore, minimizing the startup program during booting can be said to be very sensitive in terms of booting time and power consumption. Therefore, if a window for selecting a startup program is displayed at booting, the user selects a program to be executed at booting among programs displayed on the startup program selection window. Here, the start program may refer to a program that the user uses on a day or continues to use in the future.

Then, when the user selects a startup program to be executed at booting in the startup program selection window, only the selected startup program is executed at booting. In addition, the startup program selection window is displayed at the next booting, and if the user does not select a startup program within a certain period of time, only the previously selected startup program is executed to perform booting.

By selecting a startup program during booting, the user can select and execute only the startup program that is mainly used by the user, so that there is no need to run all programs installed on the computer, reducing power consumption and booting time.

Meanwhile, the program force termination unit 150 checks programs that have been inactive for a long time after the computer boots (programs that are not used after execution). Here, in the program that has been inactive for a long time, the program means a program executed by the user. For example, it refers to programs such as Hangul, MS-Word, Excel, PowerPoint, and the Internet below. Here, the long time can be variably set by the user. After the computer boots up, it checks whether or not the program executed by the user is used after execution. Here, whether or not there is confirmation can be determined whether or not the corresponding program is executed simply by checking whether or not there is an extension when the program is executed. The execution time of the activated program is checked using the counter, and the program is forcibly terminated if it is not reactivated (not used) within a preset time. In addition, the forcibly terminated program is displayed on the standby selection window so that the user recognizes the forcibly terminated program.

In this way, unnecessary power consumption can be reduced by preventing the corresponding program from running in the background by forcibly automatically shutting down a program that the user runs but does not use for a long time.

In addition, the monitor, which is the display device 3, analyzes the screen data transmitted from the main body 1 through the monitor power controller 330 and turns off all power consumption of the monitor except for the interface with the main body when the screen is in the screen protection state. save on

For example, the monitor power control unit 330 classifies screen data transmitted from the main body 1 in units of frames, analyzes specific data position data in the frame, and sets the screen data of the corresponding frame. Here, a plurality of specific data location data can be set for one frame. Then, with respect to the next frame, the specific data location data is analyzed in the same frame as the previous frame and set as the screen data of the corresponding frame. Through this process, the screen data of the frame is analyzed for a certain period of time. Here, analysis of specific data location data can be performed using color information (RGB data) of pixel data at the corresponding location. Since the RGB values of each pixel exist, it is possible to analyze data at an arbitrary position by calculating them. Here, a plurality of specific data location data can be set for one frame.

Thereafter, the screen data analyzed for the predetermined period of time is compared, and if the value is the same, it is determined as the screen save mode. In actual screen save mode, all frame data is the same at regular intervals.

Subsequently, when the screen data transmitted from the main body 1 is analyzed and analyzed as screen protection screen data, all power consumption of the monitor except for the interface with the main body (interface generated when the keyboard, mouse, and power switch is operated) is reduced. off to reduce power consumption.

In the above, the configuration and functions/operations for each configuration of the device for reducing power consumption of the display device of a computer according to an embodiment of the present invention have been described. Hereinafter, a method for reducing power consumption of a display device of a computer according to an embodiment of the present invention will be described.

3 is a flowchart illustrating a method of reducing power consumption of a display device of a computer according to an embodiment of the present invention.

The step-by-step operation shown in FIG. 3 may be performed by the power consumption reduction device described with reference to FIGS. 1 and 2, and for description, the program determining unit 110 includes extension information for each group and event generation signal information for each group. , and it is assumed that the brightness control unit 130 stores reduction ratio and time information for each event generation signal, and each information can be set in various ways by the user.

Referring to FIGS. 1 to 3 , the startup program selector 140 displays a window for selecting a startup program when the PC is booted. Here, the more startup programs there are at boot time, the slower the boot time. Boot time consequently affects the consumption of power consumption. Therefore, minimizing the startup program during booting can be said to be very sensitive in terms of booting time and power consumption. Therefore, when a window for selecting a startup program is displayed at booting, the user selects a program to be executed at booting among programs displayed on the startup program selection window (S301). Here, the start program may refer to a program that the user uses on a day or continues to use in the future.

Then, when the user selects a startup program to be executed at booting in the startup program selection window, only the selected startup program is executed at booting (S302). In addition, the startup program selection window is displayed at the next booting, and if the user does not select a startup program within a certain period of time, only the previously selected startup program is executed to perform booting.

By selecting a startup program during booting, the user can select and execute only the startup program that is mainly used by the user, so that there is no need to run all programs installed on the computer, reducing power consumption and booting time.

The program determination unit 110 may acquire information about an execution program on the computer operating system (S300), and determine whether the execution program belongs to a preset group (S310).

In step S300, the program determining unit 110 may obtain information about an active program running on the computer operating system, and may obtain extension information of the running program, for example.

In step S300, if the operating system is Windows, the program determining unit 110 may obtain information about the running program from the Windows task manager.

In step S310, the program determination unit 110 may determine whether the execution program belongs to a preset group by comparing extension information of the execution program with extension information for each group.

If it is determined in step S310 that the execution program does not belong to the preset group (S310-no),

The program forced termination unit 150 checks programs that have been inactive for a long time after booting the computer (S360). Here, in the program that has been inactive for a long time, the program means a program executed by the user. For example, it refers to programs such as Hangul, MS-Word, Excel, PowerPoint, and the Internet below. Here, the long time can be variably set by the user. After booting the computer, it is checked whether or not the program executed by the user is used after execution (S370). Here, whether or not there is confirmation can be determined whether or not the corresponding program is executed simply by checking whether or not there is an extension when the program is executed. The execution time of the activated program is checked using the counter, and if it is not reactivated (not used) within a preset time, the corresponding program is forcibly terminated (S380). In addition, the forcibly terminated program is displayed on the standby selection window so that the user recognizes the forcibly terminated program.

In this way, unnecessary power consumption can be reduced by preventing the corresponding program from running in the background by forcibly automatically shutting down a program that the user runs but does not use for a long time.

In addition, if the execution program does not belong to the preset group, the program determination unit 110 outputs a default signal to the brightness control unit 130 so that the brightness control unit 130 outputs a default signal to the brightness control unit 310, so that the brightness control unit 310 controls the power supplied to the display unit 320 to control the display brightness to a set brightness (normal mode) (S320).

In step S320, if the current display brightness is the set brightness, the display brightness is maintained at the current set brightness, and if the current display brightness is reduced according to the previous power control signal and power consumption is reduced, the display brightness is set to the previous setting. Brightness can be restored.

If it is determined in step S310 that the execution program belongs to a preset group (S310 - Yes), the program determination unit 110 may output an event generation signal corresponding to the group to which the execution program belongs to the brightness control unit 130 ( S330).

The program determining unit 130 may determine the group to which the execution program belongs in step S310, and check the event generating signal corresponding to the group in the event generating signal information for each group in step S330, and convert the event generating signal to the brightness control unit 130. can be output as

After step S330, upon receiving the event generation signal, the brightness controller 130 may output a power control signal corresponding to the received event generation signal to the brightness controller 310 (S340).

In step S340, the brightness control unit 130 may output a power control signal for gradually reducing the display brightness to the brightness control unit 310 according to the predetermined reduction ratio and time information for each event generation signal.

For example, the brightness control unit 130 checks the reduction ratio and time corresponding to the event generation signal from the reduction ratio and time information for each event generation signal, and gradually reduces the display brightness according to the identified reduction ratio and time. A power control signal may be output to the brightness controller 310 .

After step S340, upon receiving the power control signal, the brightness control unit 310 controls the display brightness to decrease step by step in response to the power control signal, thereby reducing power consumption of the display device 3 (power saving mode). (S350).

In step S350, the brightness control unit 310 controls the power supplied to the display unit 320 in response to the power control signal to gradually reduce the display brightness from the current brightness to the reduction ratio over the reduction time. ) can reduce power consumption.

For example, in step 330, if the execution program belongs to the first group including document program extension information, a first event generation signal is output, and if the execution program belongs to the second group including video program extension information, a second event generating signal is output. An event generation signal may be output.

For example, in step S340, a power control signal for reducing display brightness according to a first reduction ratio and a first reduction time corresponding to a first event generation signal is output, and a second reduction corresponding to a second event generation signal. A power control signal for reducing display brightness according to the ratio and the second reduction time may be output.

At this time, the first reduction rate may be lower than the second reduction rate, and the first reduction time may be shorter than the second time.

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and may be variously modified and implemented without departing from the technical spirit of the present invention. Therefore, the embodiments disclosed herein are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. It should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed according to the scope of the claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1: body 2: interface
3: display device 110: program determination unit
120: setting unit 130: brightness control unit
140: start program selection unit 150: program forced termination unit
310: brightness control unit 320: display unit
330: monitor power controller

Claims (14)

a program determination unit configured in the computer main body, acquiring information about an execution program on a computer operating system, and outputting an event generation signal corresponding to a group to which the execution program belongs;
a brightness controller configured in the computer body and configured to output a power control signal corresponding to the event generating signal when the event generating signal is received; and
A brightness control unit configured in a display device and configured to reduce power consumption of the display device by gradually reducing display brightness in response to the power control signal when receiving the power control signal;
The program determination unit compares the extension information of the executable program with the extension information for each group to determine the group to which the execution program belongs, checks the event generation signal corresponding to the group in the event generation signal information for each group, and outputs an event generation signal. A device for reducing power consumption of a display device of a computer. In claim 1,
The program determination unit outputs a first default signal to the brightness control unit when there is no group to which the execution program belongs;
When the brightness control unit receives the first default signal, the brightness control unit outputs a second default signal for setting the display brightness to a preset brightness;
Wherein the brightness controller maintains or restores the brightness of the display to a preset brightness in response to the second default signal. In claim 1,
When receiving the event generation signal, the brightness control unit checks the reduction rate and time in the reduction rate and time information for each event generation signal, and outputs a power control signal for gradually reducing the display brightness according to the determined reduction rate and time , A device for reducing power consumption of a display device of a computer. In claim 1,
The reduction ratio and time are set differently for each event generation signal, a device for reducing power consumption of a display device of a computer. In claim 1,
The program determining unit outputs a first event generation signal when the execution program belongs to a first group including document program extension information, and outputs a signal for generating a first event when the execution program belongs to a second group including video program extension information, and generates a second event signal. Outputs a generated signal,
The brightness controller outputs a power control signal for reducing display brightness according to a first reduction ratio and a first reduction time when receiving the first event generation signal, and when receiving the second event generation signal, a second reduction ratio and Outputting a power control signal for reducing display brightness according to the second reduction time;
The first reduction rate is lower than the second reduction rate, and the first reduction time is shorter than the second time, the power consumption reduction device of the display device of the computer. In claim 1, the computer body,
Apparatus for reducing power consumption of a display device of a computer, comprising a start program selector that displays a window for selecting a start program when booting a PC and, when a user selects a start program to be executed at boot time, executes only the selected start program when booting the PC . In claim 1, the computer body,
An apparatus for reducing power consumption of a display device of a computer, comprising a program force termination unit that reduces power consumption by minimizing program execution by checking a program that has been inactive for a long time, forcibly terminating the program and popping up a standby selection window. In claim 1, the display device,
A device for reducing power consumption of a display device of a computer, comprising a monitor power control unit that analyzes screen data transmitted from the computer body and reduces power consumption by turning off all power consumption of the monitor except for an interface with the computer body when the screen is in a protection state. A method for reducing power consumption of a display device of a computer using the power consumption reduction device of a display device of a computer according to any one of claims 1 to 8,
(a) acquiring information about an executable program on a computer operating system by a program determination unit configured in the computer body;
(b) the program determining unit determining whether the execution program belongs to a preset group and outputting an event generation signal corresponding to the group to which the execution program belongs;
(c) step of receiving the event generation signal and outputting a power control signal corresponding to the event generation signal by a brightness controller configured in the computer body; and
(d) reducing power consumption of the display device by gradually reducing the brightness of the display by a brightness control unit configured in the display device in response to the power control signal;
In the step (b), the group to which the executable program belongs is determined by comparing the extension information of the executable program with the extension information for each group, and an event generation signal corresponding to the group is identified in the event generation signal information for each group to generate an event. A method of reducing power consumption of a display device of a computer, comprising outputting a signal. In claim 9,
If there is no group to which the executable program belongs, the program determination unit outputs a first default signal to the brightness control unit, and the brightness control unit outputs a second default signal to the brightness control unit to set the display brightness to a preset brightness, thereby displaying brightness A method for reducing power consumption of a display device of a computer, comprising the step (e) of maintaining or restoring the brightness to a preset level. In claim 9,
In the step (c), when the event generation signal is received, the reduction rate and time are checked from the reduction rate and time information for each event generation signal, and a power control signal for gradually reducing the display brightness according to the confirmed reduction rate and time is generated. A method of reducing power consumption of a display device of a computer, comprising outputting. In claim 9,
The reduction ratio and time are set differently for each event generation signal, a method for reducing power consumption of a display device of a computer. In claim 9,
The step (b) outputs a first event generation signal when the execution program belongs to the first group including document program extension information, and outputs a first event generation signal when the execution program belongs to the second group including video program extension information. 2 Including outputting an event generation signal,
The step (c) outputs a power control signal for reducing display brightness according to a first reduction ratio and a first reduction time corresponding to the first event generation signal, and a second reduction corresponding to the second event generation signal. Outputting a power control signal for reducing display brightness according to the ratio and the second reduction time;
The first reduction rate is lower than the second reduction rate, and the first reduction time is shorter than the second time, a method for reducing power consumption of a display device of a computer. In claim 9,
(g) of searching for inactive programs and forcibly terminating the programs if there are inactive programs for a predetermined period of time or longer, and displaying the forcibly terminated programs in a standby selection window, which consumes the display device of the computer. Power reduction method.

Images