CN101436385A - Mechanism for saving power supply of display and control method thereof - Google Patents
Mechanism for saving power supply of display and control method thereof Download PDFInfo
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- CN101436385A CN101436385A CNA2007101868064A CN200710186806A CN101436385A CN 101436385 A CN101436385 A CN 101436385A CN A2007101868064 A CNA2007101868064 A CN A2007101868064A CN 200710186806 A CN200710186806 A CN 200710186806A CN 101436385 A CN101436385 A CN 101436385A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to a power saving mechanism for a display and a control method, and does not need the operation to set whether to enter a power saving state or turn off in the prior art. The power saving mechanism for the display can judge that a frame of the display is static, and automatically enter a power saving mode when reaching a certain time. The power saving mechanism for the display is arranged in a hardware structure of the display, and automatically judges whether to enter the power saving state, but does not need the user to set.
Description
Technical field
The present invention is relevant for the saving power-supply system of display, and particularly sets the mechanism for saving power supply of display and the control method that can automatically perform relevant for a kind of the need via the user.
Background technology
In recent years, because environmental consciousness is increasingly important, also came into one's own day by day for the demand of energy savings.How all plant equipment relevant with power supply, electrical home appliances and computer product or the like all use towards minimum electric power to reach the direction design as purpose of maximum usefulness.
With present display equipment on the market is example, general setting with power supply power saving, can be in its employed operating system, to do relevant setting by the user, the electricity-saving operation mode that for example provides in computer operating system is set, the user can enter power supply and purchase pattern, enters the pattern of power-save operation or closes total system automatically if the setting computer time how long of not using will be controlled display.But the short of electricity of this operation is this operator scheme of setting that the user must be painstakingly.If do not preestablish the parameter of this pattern, can't reach energy-conservation effect.
In addition, the display that meets VESA (Video Electronics Standard Association) standard, if the computer that connects is when the time is without any operation too for a long time, computer can notify the demarcation controller (Scalar) of display to enter temporary respite pattern (Suspend Mode), this moment, the time schedule controller (Time Controller is called for short TCON) of display can cut out with backlight.But the mode of operation that this VESA standard is worked out just allows whole display decommission fully, and this is very inconvenient in the operation for the user.Because such structure, can only allow display be in use or close, there is not other selection, therefore, for fear of the shut-down operation of user's short time and directly close display, it is very long that the time that display is closed in common this computer control is all set, and this effect for whole saving power supply then will be not as expection.
Summary of the invention
The invention provides a kind of intelligent saving power supply of display system, can solve needs the user to set up the shortcoming of unused time on their own on the conventional art.The frame that also is automatic judgement display equipment is static and when reaching certain hour, promptly enters battery saving mode.
Display with saving power sector proposed by the invention, comprise the saving power control, in order to receive the frame data of a plurality of continuous demonstrations, and after comparing according to these frame data, judge whether to enter power save mode of operation, when display enters power save mode of operation, the saving power control is exported one respectively and is shown Energy Saving Control signal and energy-conservation backlight control signal to display control module and backlight module control module, in order to adjust the light that frame and backlight module sent that display pannel shows.
Above-mentioned saving power control comprises first frame register, second frame register, totalizer, content comparators and power-saving control device.This first frame register and second frame register, in order to depositing frame data, and these frame data are the data that obtain in regular turn from the frame data of continuous demonstration.Totalizer is then in order to impose after the add operation output frame difference value according to this to described frame data.Content comparators then carries out obtaining count value after frame difference value and preceding once resulting frame difference value compare, and when after the time, interval inside counting value was greater than pre-determined number, can obtain judged result.And the power-saving control device is connected to content comparators, when judged result is that display is when entering this power save mode of operation, then output according to this shows Energy Saving Control signal and energy-conservation backlight control signal to display control module and backlight module control module, in order to adjust the light that frame and this backlight module sent that display pannel shows.
In one embodiment, the control method of saving power supply of display proposed by the invention at first, receives the frame data of a plurality of continuous demonstrations.Compare according to two continuous in frame data frame data, and the record comparing result.When comparing result reached pre-determined number in the preset time interval after, the control display entered power save mode of operation.When display enters power save mode of operation, save power control and export an energy-conservation backlight control signal respectively, enter power save mode of operation in order to the frame of adjusting the display demonstration.
Above-mentioned energy-conservation backlight control signal is to use pulse-length modulation (PWM) technology to realize, transfer pulse signal to by controlling voltage swing, and change width, quantity or the distribution rule of this pulse signal, with change this display of control show employed backlight intensity with and frequency.
And above-mentioned backlight intensity and frequency control system are cold cathode fluorescent lamp (CCFL) backlight module or light emitting diode (LED) backlight module of control display.
Above-mentioned energy-conservation backlight control signal is to use low-voltage direct current (Low-voltage DC) Current Control Technology, shows employed backlight intensity and frequency to change the control display.
In one embodiment, the control method with saving power supply of display of the function of overdriving proposed by the invention.At first, receive via in the frame data of calculation function to a plurality of continuous demonstrations of overdriving, continuous two frame data compare one of the back output signal of overdriving.Note down the initiate mode of this signal record of overdriving, and obtain count value, wherein when count value reaches predetermined times in a time interval after, the control display enters power save mode of operation, wherein when display enters power save mode of operation, save power control and export energy-conservation backlight control signal respectively, enter power save mode of operation in order to the frame of adjusting the display demonstration.
Above-mentioned energy-conservation backlight control signal is to use pulse-length modulation (PWM) technology to realize, transfer pulse signal to by controlling voltage swing, and change width, quantity or the distribution rule of this pulse signal, with change this display of control show employed backlight intensity with and frequency.
And above-mentioned backlight intensity and frequency control system are cold cathode fluorescent lamp (CCFL) backlight module or light emitting diode (LED) backlight module of control display.
Above-mentioned energy-conservation backlight control signal is to use low-voltage direct current (Low-voltage DC) Current Control Technology, shows employed backlight intensity and frequency to change the control display.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. are described in detail as follows.
Description of drawings
Fig. 1 and Fig. 2 illustrate mechanism for saving power supply of display proposed by the invention frame in order to judge respectively.
Fig. 2 saves power sector figure synoptic diagram.
Fig. 3 be explanation a preferred embodiment of the present invention have a mechanism for saving power supply of display display device structure synoptic diagram.
Fig. 4 is explanation saving power control 320 1 preferred embodiment electrical block diagrams proposed by the invention.
Fig. 5 is the display device structure synoptic diagram with mechanism for saving power supply of display of explanation another embodiment of the present invention.
Fig. 6 A and Fig. 6 B are the structural representations that illustrates when mechanism for saving power supply of display proposed by the invention is applied in LCD.
Fig. 7 is the operation steps schematic flow sheet of mechanism for saving power supply of display proposed by the invention.
The main element symbol description
112,114: display highlighting
110,120: frame
210,220 and 230: frame
212,214,216: cursor
300: display
310: image receiving unit
320: save power control
330: the display control module
340: backlight module (Back Light Module) control module
350: display pannel
360: backlight module
410 and 420: frame register
430: totalizer
440: content comparators
450: the power-saving control device
510: (Overdrive) arithmetic element of overdriving
512: the output signal of overdriving
600A, 600B: display
610: save power control
612: show the Energy Saving Control signal
614: energy-conservation backlight control signal
620: the LCD control module
630: cold cathode fluorescent lamp backlight module control module
640: display pannel
650: the cold cathode fluorescent lamp backlight module
660: the light-emitting diode (LED) backlight module control module
670: light-emitting diode (LED) backlight module
Embodiment
The invention provides a kind of mechanism for saving power supply of display, need on the conventional art not need the user to set up on their own and whether enter the power and energy saving state or the operation of shutdown.This mechanism for saving power supply of display can judge that the frame of display is static and when reaching certain hour, promptly enters battery saving mode automatically.This mechanism for saving power supply of display is to be configured in the hardware configuration of display, and judges whether to enter the state of power-save operation automatically, and does not need user's setting.
Mechanism for saving power supply of display provided by the present invention, can detect the shown frame of display, and wherein two frames in the successive frame are compared, if when changing less than a predetermined value, will assert that these successive frames have static possibility, and utilize a count value to be counted, and when count value surpasses an other predetermined value, promptly represent continuous a period of time of this successive frame without any variation, or the degree that changes is quite little, this display can be regarded as the user does not have the state of operation, therefore can enter so-called saving electric source modes.And mention two frames in the so-called successive frame at this, can be two frames that successively are presented at continuously on the display, or in continuous a plurality of frames, capture two frames as judgement at certain hour, these two kinds of situations all are applicable to category of the present invention, described all embodiment under also being useful in.
Mechanism for saving power supply of display provided by the present invention, there are not operation or frame through under detecting the user after a while without any situation about changing, can control display provides the device of light source, for example backlight module utilizes to reduce operating frequency, reduce the successive frame display frequency or reduce current value or the like different mode to enter the operation of saving the energy.
Mechanism for saving power supply of display provided by the present invention can be an element independently, is configured in the inside in the display.In an embodiment, this mechanism for saving power supply of display can be configured in the controller of display, or be configured in time schedule controller (Time Controller, be called for short TCON) or be configured in and demarcate in the controller (Scalar) or the like, and the function that can also have the backlight module mode of operation of adjusting display is to reach the effect of power and energy saving.
Please earlier with reference to Fig. 1 and Fig. 2, with convenient explanation mechanism for saving power supply of display proposed by the invention.As Fig. 1 be on the display as shown in two continuous frames 110 and 120.Display highlighting 112 for example on frame 110, another one frame 120 then shows another cursor 114.These two frames with cursor can find out obviously that cursor 112 is different with cursor 114, if compare at described two frames 110 and 120, can understand the user and operate, and therefore whether static count value can't increase for above-mentioned judgment frame.And frame 110 and 120 as mentioned herein, be two obtained frames in the continuous display frame, but these two frames 110 and 120 successively interlude are unsuitable long, the distortion in order to avoid the speed of judging is too slow, in one embodiment, can be in the continuous display frame two frames successively showing, but be not as limit.
Fig. 2 is shown a plurality of continuous frames on the display, only describes at frame 210,220 and 230 in the figure.In these continuous frames, cursor 212 on the frame 210, the cursor on the frame 220 222 and the cursor 232 on the frame after a period of time 230, can find out obviously that cursor 212, cursor 214 all are positioned on the identical position with cursor 216, therefore, above-mentioned successive frame can judge it all is to be in static state, therefore, can continue to increase for count value, during greater than a threshold value, then can assert the state of user's shut-down operation up to this count value, therefore can enter so-called saving electric source modes.According to such decision mechanism, display can judge whether to enter automatically battery saving mode.
Please refer to Fig. 3, have a mechanism for saving power supply of display display device structure synoptic diagram for explanation a preferred embodiment of the present invention.This display 300 comprises image receiving unit 310, saving power control 320, display control module 330, backlight module (Back Light Module) control module 340, display pannel 350 and backlight module 360.Display control module 330 transmits display control signal 332 to display pannel 350, in order to control its display frame content.And backlight module control module 340 transmits backlight control signal 342 to backlight module 360, provides display pannel 350 display frames needed light intensity in order to control backlight module 360.Mechanism for saving power supply of display proposed by the invention is built in to be saved in the power control 320.
Whether this is saved power control 320 and receives obtained a plurality of frames in the continuous display frame, static in order to judgment frame.At the frame that can judge display 300 whether static and reach preset time after, promptly enter battery saving mode automatically.This mechanism for saving power supply of display is to be configured in the hardware configuration of display, and judges whether to enter the state of power-save operation automatically, and does not need user's setting.And when saving power control 320 is confirmed to enter the frame stationary state, then can send display control module 330 and backlight module control module 340 respectively to by showing Energy Saving Control signal 322 and energy-conservation backlight control signal 324.The adjustment that display control module 330 then can show by 332 pairs of display pannels 350 of display control signal.Backlight module control module 340 then can be adjusted light intensity that backlight modules 360 are sent or frequency or the like by backlight control signal 342.The energy-conservation adjustment of display pannel 350 and the energy-conservation adjustment of backlight module 360 can be carried out simultaneously, or select one according to need and carry out.
And the above-mentioned saving power control 320 a plurality of frames obtained in the continuous display frame that receive are from image source 305, and this image source 305 can be connected to the vision signal source of these display 300 receptions from for example host computer.In one embodiment, the image of these receptions can be stored in earlier in the image receiving unit 310, viewdata signal 312 is sent to save power control 320 again.
And the structure of above-mentioned saving power control 320 in a preferred embodiment, please refer to shown in Figure 4.This saving power control 320 comprises two frame registers 410 and 420, one totalizer 430 and a power-saving control device 450.Viewdata signal 312 comprises a plurality of frames obtained in the continuous display frame, is the example explanation at this with two frames that show continuously.And two frames that show continuously are stored in respectively in frame register 410 and 420, and for example frame register 410 stores N+1 frame, and then frame register 420 stores N frame.And the frame of the postorder viewdata signal 312 continuous demonstration of transmitting also is stored in frame register 410 and 420 in regular turn.Then, the output of frame register 410 is connected to the anode of totalizer 430, and the output of frame register 420 is connected to the negative terminal of totalizer 430.This totalizer 430 is then carried out frame register 420 stored N and is deducted frame register 420 stored N+1 content frames, the result 432 who obtains is sent in the content comparators 440, and carry out the difference contrast of this result and previous result according to content comparators 440 after, be sent to power-saving control device 450, so that allow the power-saving control device 450 can be according to the pattern of adjusting, transmit control signal and give display control module 330 and backlight module control module 340, so that the adjustment that display pannel is shown or backlight module carried out light intensity or adjustment of frequency or the like.Above-mentioned adjustment modes can be selected the mode adjusted according to display pannel or the characteristic of backlight module, as long as can save the utilization scope that power supply promptly is applicable to present embodiment.
Please refer to Fig. 5, be the display device structure synoptic diagram with mechanism for saving power supply of display of explanation another embodiment of the present invention.Main form closely with Fig. 3, same section is no longer superfluous to be stated, but difference be, save power control 320 and be and receive from the output signal 512 of overdriving of (Overdrive) arithmetic element 510 of overdriving, originate and do not need to be connected to vision signal.This overdrive technique all is equipped with such function, particularly LCD at present on the part display, this technology can be improved the reaction velocity of liquid crystal, and utilization improves the speed that driving voltage is accelerated the liquid crystal reaction.And the compute mode of this overdrive technique is generally the difference of two successive frames of comparison, excessively will provide driving voltage if change, and result that should be relatively can be sent to mechanism for saving power supply of display of the present invention, so that carry out energy-conservation adjustment automatically.And above-mentioned saving power control 320 is connected to (Overdrive) arithmetic element 510 of overdriving, and these two devices can be configured in the time schedule controller (TCON) of display or be configured in and demarcate in the controller (Scalar), to reach the effect of power and energy saving.
Certainly, if configuration has the time schedule controller (TCON) of mechanism for saving power supply of display proposed by the invention or demarcating controller (Scalar) does not possess (Overdrive) technology of overdriving, then only need to increase the effect that extra frame register can reach the power and energy saving.
Mechanism for saving power supply of display proposed by the invention, if when being applied in LCD, structure is respectively shown in Fig. 6 A and Fig. 6 B.Difference is that backlight module is the difference of adopting cold cathode fluorescent lamp (Cold CathodeFluorescent Lamp, beneath abbreviation CCFL) backlight module or adopting light emitting diode (LED) backlight module.Please earlier with reference to Fig. 6 A, in display 600A, when saving power control 610 is confirmed to enter the frame stationary state, then can send LCD control module 620 and cold cathode fluorescent lamp backlight module control module 630 respectively to by showing Energy Saving Control signal 612 and energy-conservation backlight control signal 614.The adjustment that LCD control module 620 then can show display pannel 640 by display control signal.Cold cathode fluorescent lamp backlight module control module 630 then can be adjusted light intensity that cold cathode fluorescent lamp backlight module 650 sent or frequency or the like by backlight control signal.And the mode of this control can use pulse-length modulation (Pulse Width Modulation is called for short PWM) technology or low-voltage direct current (Low-voltage DC) Current Control Technology to realize.This PWM technology is for to transfer the output voltage of current transformer to certain width pulse signal, by changing width, quantity or the distribution rule of pulse signal, with the numerical value that changes output voltage and the control method of frequency, the light intensity that can be sent in order to control cold cathode fluorescent lamp backlight module 650 or frequency or the like.
And then with reference to Fig. 6 B, in display 600B, when saving power control 610 is confirmed to enter the frame stationary state, then can send LCD control module 620 and light-emitting diode (LED) backlight module control module 660 respectively to by showing Energy Saving Control signal 612 and energy-conservation backlight control signal 614.The adjustment that LCD control module 620 then can show display pannel 640 by display control signal.Light-emitting diode (LED) backlight module control module 630 then can be adjusted the light intensity that light-emitting diode (LED) backlight module 670 is sent by backlight control signal, for example adjusts and offers drive current size of light emitting diode or the like.
Fig. 7 is the operation steps schematic flow sheet of mechanism for saving power supply of display proposed by the invention.Step 712 is come source signal 710 for saving power sector receiver, video under the normal state that shows, and reads in data to the first frame register of N frame.Then step 714 reads in data to the second frame register of N+1 frame under the normal state that shows.This N frame and N+1 frame are actually two continuous frames, but as previously mentioned, do not limit for this reason.
Step 716 is done additive operation for saving power sector with the pixel difference value of N frame and N+1 frame, and this operation result is inserted in the count value P value.Step 718 compares for the frame pixel difference threshold value (i.e. first setting value) that count value P value and mechanism for saving power supply of display inside are set.First setting value can award an initial value by hardware or software, if the user needs to set in addition, and can be by software interface or hardware setting change.If count value P value is little than first setting value, then carry out step 720.If count value P value is big than first setting value, then carry out step 728.
Step 720 is for when count value P value than first setting value be hour, that is the frame pixel difference of N frame and N+1 frame is less than the threshold value that saving power sector inside sets, and represents then that two frame differences are very little at this moment, can be considered two continuous frozen frozen masses.Therefore, judge according to step 720 whether screen display is the normal state that shows this moment earlier, if then enter step 722.If not, then represent screen display be in battery saving mode in, and because the frame that is read is continuous frozen frozen mass, so continue the maintenance battery saving mode.The saving power sector then returns to step 712 and continues to read follow-up frame data.
On behalf of the frozen frozen mass quantity of this moment, step 722 do not reach the state that starts battery saving mode as yet, adds one so another count value Q need be counted, just Q=Q+1.Enter step 726 then, judge the threshold value (i.e. second setting value) of the frozen frozen mass quantity whether the count value Q value of the frozen frozen mass of this moment sets greater than saving power sector inside.This second setting value can award an initial value by hardware or software, if the user needs to set in addition, and can be by software interface or hardware setting change.As count value Q during greater than second setting value, enter step 726, promptly enter battery saving mode.On behalf of the frozen frozen mass of this moment, its Q value be not accumulate to second setting value of saving power sector inside as yet less than second setting value, does not still need to enter battery saving mode, so get back to the data that step 712 continues to read next frame.
When P value when being big than first setting value, represent that promptly the pixel difference value of N frame and N+1 frame is bigger, continuous static frame after judging.So in step 728, confirm this moment, whether screen display was among the battery saving mode.If yes, then the Q value being removed is 0, accumulating static number of frames again to the Q value, and leaves battery saving mode, returns to the data that step 712 continues to read next frame.If, then directly do not get back to the data that step 712 continues to read next frame.
In sum, the present invention can utilize the system that saves power supply to reach the function of saving the LCD screen power supply, and does not need the user to do related setting can to reach battery saving mode automatically.But if the user wants to change related setting, this system also still can provide software interface or hardware setting to change setting, quite has dirigibility.
Though the present invention with preferred embodiment openly as above, so it is not in order to limit the present invention.Those of ordinary skill under any in the technical field under the situation that does not break away from the spirit and scope of the present invention, can carry out various changes and modification.Therefore, protection scope of the present invention is as the criterion with the scope of the claim that proposed.
Claims (23)
1. display with mechanism for saving power supply of display comprises:
One display pannel;
One display control module is connected to this display display pannel, in order to control the shown content frame of this display display pannel;
One backlight module is in order to provide this display pannel display frame needed light;
One backlight module control module, the light that is provided in order to this control backlight module; And
One saves power control, in order to receive the frame data of a plurality of continuous demonstrations, and after comparing according to these a plurality of frame data, judge whether to enter a power save mode of operation, when this display enters this power save mode of operation, this saving power control is exported an energy-conservation backlight control signal to this backlight module control module, in order to adjust the light that this backlight module sends.
2. display as claimed in claim 1, wherein when this display entered this power save mode of operation, this was saved power control output one and shows the Energy Saving Control signal to this display control module, in order to adjust the frame that this display pannel shows.
3. display as claimed in claim 2, wherein this saving power control comprises:
One first frame register is in order to deposit one first frame data;
One second frame register, in order to deposit one second frame data, the data that from the frame data of these a plurality of continuous demonstrations, obtain in regular turn for this display of these first frame data and second frame data wherein;
One totalizer is exported a frame difference value according to this after these first frame data and this second frame are imposed an add operation;
One content comparators after this frame difference value of contrast complex, obtains a count value, after this count value in a time interval is greater than a pre-determined number, can obtain a judged result;
One power-saving control device, be connected to this content comparators, when this judged result enters this power save mode of operation for this display, then export this demonstration Energy Saving Control signal according to this and arrive this display control module and this backlight module control module, in order to adjust the light that frame and this backlight module sent that this display pannel shows with this energy-conservation backlight control signal.
4. display as claimed in claim 1, wherein this display pannel is a display panels, and this display control module is a LCD control module.
5. display as claimed in claim 1, wherein this backlight module is a cold cathode fluorescent lamp (CCFL) backlight module, and this backlight module control module is a cold cathode fluorescent lamp backlight module control module.
6. display as claimed in claim 1, wherein should save power control adjustment mode realizes for using a pulse-length modulation (PWM) technology, transfer a pulse signal to by controlling voltage swing, and change width, quantity or the distribution rule of this pulse signal, with the numerical value that changes this backlight module control module output voltage of control and the control method of frequency.
7. display as claimed in claim 1 wherein should be saved power control adjustment mode for using a low voltage and direct current flow control technology.
8. display as claimed in claim 1, wherein this backlight module is a light-emitting diode (LED) backlight module, and this backlight module control module is a light-emitting diode (LED) backlight module control module.
9. display as claimed in claim 1, also comprise the arithmetic element of overdriving, in order to being provided, the signal of overdriving saves power control to this, and this saving power control writes down the number of times that this signal of overdriving is enabled, after number of times that this drive signal is enabled reaches a pre-determined number, promptly control this display and enter this power save mode of operation.
10. display as claimed in claim 8, wherein this overdrive arithmetic element and this saving power control are configured in the time schedule controller in this display.
11. display as claimed in claim 8, wherein this overdrive arithmetic element and this saving power control are configured in one in this display and demarcate controller.
12. display as claimed in claim 1, wherein this saving power control is configured in the interior time schedule controller of this display.
13. display as claimed in claim 1, wherein this saving power control is configured in one in this display and demarcates controller.
14. the control method of a saving power supply of display comprises:
Receive the frame data of a plurality of continuous demonstrations; And
Compare according to two continuous in these a plurality of frame data frame data, and write down this comparing result, when this comparing result reaches a pre-determined number in a time interval after, control this display and enter a power save mode of operation, wherein
When this display entered this power save mode of operation, this saving power control was exported an energy-conservation backlight control signal, entered this power save mode of operation in order to the frame of adjusting this display demonstration.
15. control method as claimed in claim 14, wherein this energy-conservation backlight control signal is to use a pulse width modulating technology to realize, transfer a pulse signal to by controlling voltage swing, and change width, quantity or the distribution rule of this pulse signal, with change this display of control show an employed backlight intensity with and frequency.
16. control method as claimed in claim 15, wherein this backlight intensity and frequency control system are a cold cathode fluorescent lamp backlight module of this display of control.
17. control method as claimed in claim 15, wherein this backlight intensity and frequency control system are a light-emitting diode (LED) backlight module of this display of control.
18. control method as claimed in claim 14, wherein this energy-conservation backlight control signal is to use a low voltage and direct current flow control technology, shows an employed backlight intensity and frequency to change this display of control.
19. the control method of a saving power supply of display is applicable to the display with the calculation function of overdriving, wherein this method comprises:
Reception is overdrived via this in the frame data of calculation function to a plurality of continuous demonstrations, and continuous two frame data compare one of the back output signal of overdriving;
Note down the initiate mode of this signal record of overdriving, and obtain a count value, wherein when this count value reaches a pre-determined number in a time interval after, control this display and enter a power save mode of operation, wherein,
When this display entered this power save mode of operation, this saving power control was exported an energy-conservation backlight control signal, entered this power save mode of operation in order to the frame of adjusting this display demonstration.
20. control method as claimed in claim 19, wherein this energy-conservation backlight control signal is to use a pulse width modulating technology to realize, transfer a pulse signal to by controlling voltage swing, and change width, quantity or the distribution rule of this pulse signal, with change this display of control show an employed backlight intensity with and frequency.
21. control method as claimed in claim 20, wherein this backlight intensity and frequency control system are a cold cathode fluorescent lamp backlight module of this display of control.
22. control method as claimed in claim 20, wherein this backlight intensity and frequency control system are a light-emitting diode (LED) backlight module of this display of control.
23. control method as claimed in claim 19, wherein this energy-conservation backlight control signal is to use a low voltage and direct current flow control technology, shows an employed backlight intensity and frequency to change this display of control.
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| CN102013230A (en) * | 2009-09-07 | 2011-04-13 | 三星移动显示器株式会社 | Organic light emitting display and method of driving the same |
| CN102419957A (en) * | 2010-09-28 | 2012-04-18 | 瀚宇彩晶股份有限公司 | Electric property adjusting method for display device |
| CN103137074A (en) * | 2011-11-30 | 2013-06-05 | 天津三星电子有限公司 | Energy-saving method and device for displayer and displayer |
| CN101751877B (en) * | 2008-12-05 | 2013-08-07 | 康佳集团股份有限公司 | LCD TV energy saving device and method |
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