CN101661728A - Display, method for controlling power supply thereof and computer - Google Patents
Display, method for controlling power supply thereof and computer Download PDFInfo
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- CN101661728A CN101661728A CN200810118473A CN200810118473A CN101661728A CN 101661728 A CN101661728 A CN 101661728A CN 200810118473 A CN200810118473 A CN 200810118473A CN 200810118473 A CN200810118473 A CN 200810118473A CN 101661728 A CN101661728 A CN 101661728A
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Abstract
The invention provides a display, a method for controlling a power supply thereof and a computer. The displayer comprises a display screen, a display interface, a power supply conversion module and adisplay control circuit, wherein the display screen is used for displaying images; the display interface is used for sending an electrical level control signal according to an electrical signal outputby a signal output module of a host computer; the power supply conversion module is used for converting current from an external power supply and turning on and off the power supply circuit of the display according to the electrical level control signal; and the display control circuit is used for supplying power for the display screen when the power supply circuit of the display is turned on andcontrolling the display of the display screen according to the electrical signal output by the signal output module. The method has the advantages of controlling the main power supply of the displaywhen the host computer of equipment is turned off or in dormancy or the display is unconnected with the host computer of the equipment and conveniently, individually and actively controlling the powersupply of the display to realize energy conservation under the condition that the display is connected with alternating current and operates normally.
Description
Technical field
The present invention relates to the device energy conservation technology, be meant the method and the computing machine of a kind of display, control display power supply especially.
Background technology
The existing equipment that carries display, for example the display of computing machine can be in holding state always after connecting interchange (AC) power supply, thereby a stand-by power consumption is arranged.
Although the manufacturer that has develops a kind of energy-conservation display, detect less than vision signal is arranged at display, for example can close the primary power of display under the situation of video graphics array (VGA, Video Graphics Array) automatically, to reach the purpose that reduces power consumption.
The inventor is in realizing process of the present invention, find that there are the following problems at least in the prior art: rely on the method that vision signal realizes power saving that detects, need to spend bigger cost on the circuit of realizing vision signal is detected, this technology can not be carried out cross-platform transplanting between other have the display of port of different mode simultaneously; Nor make things convenient for the break-make of computing machine ACTIVE CONTROL display power supply.
Summary of the invention
The purpose of this invention is to provide a kind of controller for power supply of display and application apparatus, be used for solving prior art, when realizing that display is energy-conservation, need on the circuit of this display, spend bigger cost, nor make things convenient for the defective of the break-make of computing machine ACTIVE CONTROL display power supply.
A kind of display comprises: display screen is used for display image; Display interface device is used for the electric signal that basis is exported from the signal output module of main frame, sends level controling signal; Power transfer module is used for the electric current from external power source is changed, and according to described level controling signal, the supply access of conducting or cut-out display; Display control circuit when being used for the supply access conducting when described display, is described display screen power supply; And control the demonstration of described display screen according to the electric signal of described signal output module output.
A kind of method of controlling display power supply comprises at least: the electric current of external power source is changed; Output according to signal output module generates level controling signal; According to described level controling signal, the supply access of conducting or cut-out display; Under conducting state,, and control the demonstration of described display screen according to the electric signal of described signal output module output for described display screen provides electric current after the conversion.
A kind of computing machine that comprises display comprises at least: display screen is used for display image; Signal output module is used to be output as auxiliary electric energy or the signal that display provides; Main frame is used to carry described signal output module; Display interface device is used for sending level controling signal according to the electric signal of described signal output module output; Power transfer module is used for the electric current from external power source is changed, and according to described level controling signal, the supply access of conducting or cut-out display; Display control circuit when being used for the supply access conducting when described display, is described display screen power supply; And control the demonstration of described display screen according to the electric signal of described signal output module output.
Embodiments of the invention have following beneficial effect, not only be at the main frame of equipment close, dormancy or display do not realize the control to the display primary power under the state of connection device main frame, and connect at display under the situation of alternating current and normal operation, also can easily carry out personalized ACTIVE CONTROL and realize energy-conservation the power supply of display.
Description of drawings
Fig. 1 is an embodiment of the invention display device structure synoptic diagram;
Fig. 2 is the structural representation of VGA type for embodiment of the invention display interface device;
Fig. 3 is the structural representation of DVI type for embodiment of the invention display interface device;
Fig. 4 is provided the display device structure synoptic diagram of auxiliary electric energy by video card for the embodiment of the invention;
Fig. 5 is an embodiment of the invention supply access structural representation one;
Fig. 6 is an embodiment of the invention supply access structural representation two;
Fig. 7 is an embodiment of the invention computer organization synoptic diagram.
Embodiment
The present invention is the technological innovation of making in view of the problem that prior art exists, its purpose is to provide a kind of general display power supply control technology, transform by supply access display, can on the display of distinct interface pattern, realize the cross-platform transplanting of display power-saving technology, the break-make of while ACTIVE CONTROL monitor power supply, thus realize the energy-conservation of display.For describing technical scheme of the present invention in detail, select preferred embodiment to be described.
As shown in Figure 1, the principle of work to display among the present invention is described.Meeting (the VESA of VESA, Video Electronics Standards Association) in the display, according to signal output module different on the mainboard from main frame, accessory power supply (AUX_POWER) for example, the control signal control primary power of output is to the power supply of display.Display comprises:
Perhaps, be built-in with two submodules: AC/DC module 103 is used for the 220V alternating current is converted to direct current.Alternating-current switch 105 is used for the 220V alternating current from external power source, according to the switching of control signal control to the alternating current of display supply.
Switch control module 111, be arranged on the lead of input end of display interface device 108, two ends are connected with signal output module 110, power transfer module 109 respectively, wherein, input end connects the output terminal of signal output module 110, and output terminal connects the input end of power transfer module 109; Be used for state according to described accessory power supply, the steering order of service logic that sets in advance or outside input, whether can output image signal, and the voltage of output if controlling described display interface device 108.
Display of the present invention can be any display that meets the VESA standard, this be since meet the VESA standard display inner structure as shown in Figure 4, its display control circuit 101 comprises:
Watch-dog 114 is used for the picture signal of basis from the control signal of display interface device 108, and picture signal is controlled described display screen 113 and realized that images show.
As shown in Figure 5, among the present invention, power transfer module 109 has different implementations; When power transfer module 109 two built-in submodules are: when dc switch 102 and AC/DC module 103, described switch control module 111 should be connected with dc switch 102 by its built-in dc switch control module 104, and output switch control signal is given dc switch 102.
Dc switch control module 104, output terminal connects dc switch 102, input end connects signal output module 110, control the switch of display primary power according to the output of signal output module 110, promptly when signal output module 110 is output state or high level, the expression main frame is in running order, need connect primary power this moment for display, then the control signal of dc switch control module 104 outputs is power on signal, after dc switch 102 is received described power on signal, dc switch 102 is in on-state, makes the display operate as normal; When signal output module 110 during for not output state or low level, need to disconnect the primary power of display, this moment, the control signal of dc switch control module 104 outputs was power-off signals, after dc switch 102 is received described power-off signal, dc switch 102 is in off-state, makes display be in off-position.
As shown in Figure 6, among the present invention, power transfer module 109 has different implementations; When power transfer module 109 two built-in submodules are: AC/DC module 103, alternating-current switch 105;
AC/DC module 103 is used for the 220V alternating current is converted to direct current.
Alternating-current switch 105 is used for the 220V alternating current from external power source, and according to the control signal from alternating-current switch control module 106, control is to the switching of the alternating current of display supply.
Described switch control module 111 should be connected with alternating-current switch 105 by its built-in alternating-current switch control module 106, and output switch control signal is given alternating-current switch 105.
Alternating-current switch control module 106, output terminal connects alternating-current switch 105, input end connects signal output module 110, control the switch of display primary power according to the output of signal output module 110, promptly when signal output module 110 is output state or high level, the expression main frame is in running order, need connect primary power this moment for display, then the control signal of alternating-current switch control module 106 outputs is power on signal, after alternating-current switch 105 is received described power on signal, alternating-current switch 105 is in on-state, makes the display operate as normal.When signal output module 110 during for not output state or low level, need to disconnect the primary power of display, this moment, the control signal of alternating-current switch control module 106 outputs was power-off signals, after alternating-current switch 105 is received described power-off signal, alternating-current switch 105 is in off-state, makes display be in off-position.
By above description as can be seen, though the supply access of dissimilar displays is not quite similar, the present invention is by providing a switch control module 111, and realizes service logic in this switch control module 111, realized the control to monitor power supply.When main frame was in dormancy or closes, even if display is connected AC power, the state that display is current according to main frame was in off-position.
Technical scheme provided by the invention not only can provide automatic control scheme to the power supply of control display, and personalized ACTIVE CONTROL scheme can further be provided, in order to realize the ACTIVE CONTROL of main frame to display power supply.
Described signal output module 110 is an example with accessory power supply (AUX_POWER) still, as under computer system IDLE state, initiatively cutting off display power supply, the circuit of the relevant AUX_POWER of main frame mainboard is modified as follows: increased general output control unit 107, by improvement to the AUX_POWER circuit that is positioned at mainboard, design in conjunction with energy-efficient display, main frame can be under the situation of the normal operation of computer system, SM set mode by general output control unit 107 control GPO, and then the height state of the level of control AUX_POWER, realized opening to display power supply, the control of closing is to reach initiatively energy-conservation technique effect.Specifically comprise:
General output control unit 107 is used for the operation according to extraneous user, generates general output control signal (GPO control signal), the SM set mode of described general output control signal control GPO.
General output control unit 107 receives user's operation signal, has generated general output control signal; According to described general output control signal, the SM set mode of GPO is 0 o'clock, and AUX_POWER is cut off, and then AUX_POWER is a low-voltage 0; When the SM set mode of GPO is 1, the AUX_POWER high voltage, dc switch is in conducting state.
Perhaps, general output control unit 107 is predefined service logics, and described service logic provides some options for the user, for example:
The state of periodic queries AUX_POWER, periodic queries is from the input of keyboard or mouse; And generate general output control signal according to the result of above inquiry.
Perhaps, general output control unit 107 is extraneous user input mouths, and by this input port, the instruction of user's input is as operation signal, and general output control unit 107 generates general output control signal according to this operation signal.
Use the technology that the foregoing description provided, the invention provides a kind of realization graphoscope method for saving energy, comprising:
The electric current of external power source is changed, and is direct current because display uses, therefore the alternating current of the 220V of outside should be converted to the direct current that is fit to display voltage usually;
Electric signal according to signal output module 110 outputs generates level controling signal;
According to described level controling signal, the supply access of conducting or cut-out display;
Under conducting state,, and control the demonstration of described display screen 113 according to the electric signal of described signal output module 110 outputs for described display screen provides described direct current.
And, when signal output module 110 is accessory power supply, described display interface device 108 is used to receive the galvanic electric signal from accessory power supply, and when described signal output module 110 was video card, described display interface device 108 was used to receive the electric signal from the main frame video card.
Before the output generation level controling signal according to signal output module 110, also comprise:
Generate general output control signal and transmission according to the operational order that comes from the outside;
According to described general output control signal and the service logic that sets in advance, control the described electric signal of described signal output module 110 outputs.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, comprise step as above-mentioned method embodiment, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
Use the technology that the foregoing description provided, the invention provides a kind of computing machine of realizing display power supply control, as shown in Figure 7, in computing machine, comprise:
Signal output module 110 is used to be output as auxiliary electric energy or the signal that display provides; And when signal output module 110 was accessory power supply, display interface device 108 was used to receive the galvanic electric signal from accessory power supply, and when signal output module 110 was video card, display interface device 108 was used to receive the electric signal from the main frame video card.
Main frame is used to carry described signal output module 110;
If being at computing machine, hope initiatively cuts off display power supply under the IDLE state, the circuit of the relevant AUX_POWER of main frame mainboard is modified as follows: a general output (GPO is provided, General PurposeOutput) control module 107, be positioned on the mainboard on south bridge or the IO chip, be connected with switch control module 111.
General output control unit 107 is used for generating general output control signal according to the operation signal that comes from the outside, and described general output control signal is provided with the accessory power supply state; General output control unit 107 is specially: predefined service logic is used to provide at least one to generate the preset selective item of described general output control signal; Perhaps, control desk is used to receive the operational order of input, and generates described general output control signal according to described operational order.
Switch control module 111 is connected with described display interface device 108, and is used for controlling the magnitude of voltage of the electric signal of described signal output module 110 outputs according to general output control signal and the service logic that sets in advance.Switch control module 111 can specifically be a dc switch control module 104, is used to receive the electric signal from computer motherboard, and according to built-in service logic described electric signal magnitude of voltage is set, and outputs to display interface device 108; Perhaps switch control module 111 can specifically be an alternating-current switch control module 106, is used to receive the described electric signal from computer motherboard, and according to built-in service logic the magnitude of voltage of described electric signal is set, and outputs to display interface device 108.
The power transfer module 109 of incoming transport electricity has constituted the supply access of display with display control circuit 101.
If signal output module 110 is video cards; Then described display control circuit 101 comprises:
Watch-dog 114 is connected with described display interface device, is used for the output according to described video card, controls described display screen and realizes that image shows.
Display is followed VESA's standard, and the interface modes of display is specifically as follows: video graphics array interface modes, new digital display standard interface modes, digital visual interface pattern or HDMI (High Definition Multimedia Interface) pattern.
Use technology provided by the invention and have following beneficial effect, control by on/off the AUX_POWER that exports to display on the mainboard, not only be at the main frame of equipment close, dormancy or display do not realize the control to the display primary power under the state of connection device main frame, and connect at display under the situation of alternating current and normal operation, also can easily carry out personalized ACTIVE CONTROL and realize energy-conservation the power supply of display.Because most display, the display that particularly meets the various interface of VESA has all adopted identical or similar supply access, so the technology of the present invention can be transplanted on each platform easily; And can compatiblely have all displays that meets the VESA standard now, saved the cost of cross-platform transplanting.
Should be noted that above embodiment is only unrestricted in order to technical scheme of the present invention to be described, all parameter values can be according to the actual conditions adjustment, and in this rights protection scope.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spiritual scope of technical solution of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (12)
1. a display is characterized in that, comprises at least:
Display screen is used for display image;
Display interface device is used for the electric signal that basis is exported from the signal output module of main frame, sends level controling signal;
Power transfer module is used for the electric current from external power source is changed, and according to described level controling signal, the supply access of conducting or cut-out display;
Display control circuit when being used for the supply access conducting when described display, is described display screen power supply; And control the demonstration of described display screen according to the electric signal of described signal output module output.
2. display according to claim 1 is characterized in that, also comprises:
General output control unit is used for generating general output control signal and transmission according to the operational order that comes from the outside;
Switch control module is connected with described display interface device, is used for controlling the magnitude of voltage of the described electric signal of described signal output module output according to described general output control signal and the service logic that sets in advance.
3. display according to claim 1 is characterized in that described signal output module is a video card, output image signal; Described display control circuit comprises:
Watch-dog is connected with described display interface device, is used for the output according to described video card, controls described display screen and realizes that image shows.
Power panel is connected with described power transfer module, is used to receive the electric current after the conversion and is described display screen power supply.
4. display according to claim 1 is characterized in that, described power transfer module comprises:
Alternating-current switch is connected with described AC/DC module, is used for according to described level controling signal conducting or cuts off the supply access of described display;
AC/DC module is used for the alternating current of external power source is converted to direct current.
5. display according to claim 1 is characterized in that, described power transfer module comprises:
AC/DC module is used for the alternating current of external power source is converted to direct current;
Dc switch is connected with described AC/DC module, is used for according to described level controling signal conducting or cuts off the supply access of described display.
6. device according to claim 1, it is characterized in that, described display is followed VESA's standard, and the interface modes of described display is specially: video graphics array interface modes, new digital display standard interface modes, digital visual interface pattern or HDMI (High Definition Multimedia Interface) pattern.
7. a method of controlling display power supply is characterized in that, comprises at least:
The electric current of external power source is changed;
Output according to signal output module generates level controling signal;
According to described level controling signal, the supply access of conducting or cut-out display;
Under conducting state,, and control the demonstration of described display screen according to the electric signal of described signal output module output for described display screen provides electric current after the conversion.
8. method according to claim 7 is characterized in that, described output according to signal output module generates before the level controling signal, also comprises:
Generate general output control signal and transmission according to the operational order that comes from the outside;
According to described general output control signal and the service logic that sets in advance, control described signal output module and export described electric signal.
9. a computing machine that comprises display is characterized in that, comprises at least:
Display screen is used for display image;
Signal output module is used to be output as auxiliary electric energy or the signal that display provides;
Main frame is used to carry described signal output module;
Display interface device is used for sending level controling signal according to the electric signal of described signal output module output;
Power transfer module is used for the electric current from external power source is changed, and according to described level controling signal, the supply access of conducting or cut-out display;
Display control circuit when being used for the supply access conducting when described display, is described display screen power supply; And control the demonstration of described display screen according to the electric signal of described signal output module output.
10. computing machine according to claim 9 is characterized in that,
General output control unit is used for generating general output control signal and transmission according to the operational order that comes from the outside;
Switch control module is connected with described display interface device, is used for controlling the magnitude of voltage of the described electric signal of described signal output module output according to described general output control signal and the service logic that sets in advance.
11. computing machine according to claim 9 is characterized in that, described signal output module is a video card, and output image signal; Described display control circuit comprises:
Watch-dog is connected with described display interface device, is used for the output according to described video card, controls described display screen and realizes that image shows.
Power panel is connected with described power transfer module, and the electric current after being used to change also is described display screen power supply.
12. computing machine according to claim 9, it is characterized in that, described display is followed VESA's standard, and the interface modes of described display is specially: video graphics array interface modes, new digital display standard interface modes, digital visual interface pattern or HDMI (High Definition Multimedia Interface) pattern.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101184736A CN101661728B (en) | 2008-08-25 | 2008-08-25 | Display, method for controlling power supply thereof and computer |
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| CN2008101184736A CN101661728B (en) | 2008-08-25 | 2008-08-25 | Display, method for controlling power supply thereof and computer |
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| CN101661728A true CN101661728A (en) | 2010-03-03 |
| CN101661728B CN101661728B (en) | 2012-05-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880280A (en) * | 2012-08-31 | 2013-01-16 | 天津三星电子有限公司 | Display terminal |
| CN104035738A (en) * | 2013-03-04 | 2014-09-10 | 联想(北京)有限公司 | Display mode control method and device |
| CN110111730A (en) * | 2019-06-21 | 2019-08-09 | 深圳市洲明科技股份有限公司 | Display screen kinetic-control system and display screen |
| CN112083793A (en) * | 2020-09-21 | 2020-12-15 | 西安超越申泰信息科技有限公司 | Low-power-consumption liquid crystal display video detection control method based on domestic processor |
| CN113163143A (en) * | 2020-01-22 | 2021-07-23 | 海信视像科技股份有限公司 | Display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2949980B2 (en) * | 1991-12-04 | 1999-09-20 | 富士通株式会社 | Power supply control device and information processing device |
| US5616988A (en) * | 1994-08-19 | 1997-04-01 | Hyundai Electronics Industries Co., Ltd. | High energy-saving circuit for a display apparatus |
| CN1928777A (en) * | 2005-09-06 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Electronic information in time display system, method and electronic device |
| WO2007043264A1 (en) * | 2005-10-14 | 2007-04-19 | Matsushita Electric Industrial Co., Ltd. | Display control device |
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2008
- 2008-08-25 CN CN2008101184736A patent/CN101661728B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880280A (en) * | 2012-08-31 | 2013-01-16 | 天津三星电子有限公司 | Display terminal |
| CN104035738A (en) * | 2013-03-04 | 2014-09-10 | 联想(北京)有限公司 | Display mode control method and device |
| CN110111730A (en) * | 2019-06-21 | 2019-08-09 | 深圳市洲明科技股份有限公司 | Display screen kinetic-control system and display screen |
| CN110111730B (en) * | 2019-06-21 | 2023-08-22 | 深圳市洲明科技股份有限公司 | Display screen dynamic control system and display screen |
| CN113163143A (en) * | 2020-01-22 | 2021-07-23 | 海信视像科技股份有限公司 | Display device |
| CN113163143B (en) * | 2020-01-22 | 2022-11-18 | 海信视像科技股份有限公司 | Display device |
| CN112083793A (en) * | 2020-09-21 | 2020-12-15 | 西安超越申泰信息科技有限公司 | Low-power-consumption liquid crystal display video detection control method based on domestic processor |
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|---|---|
| CN101661728B (en) | 2012-05-09 |
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