CN101359452B - Display and drive controlling method thereof - Google Patents
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- CN101359452B CN101359452B CN2007101300978A CN200710130097A CN101359452B CN 101359452 B CN101359452 B CN 101359452B CN 2007101300978 A CN2007101300978 A CN 2007101300978A CN 200710130097 A CN200710130097 A CN 200710130097A CN 101359452 B CN101359452 B CN 101359452B
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Abstract
Disclosed are a monitor and the drive control method thereof. The monitor includes a display panel, a drive control module and a power-saving control module. The display panel is used for displaying a plurality of picture frames. The drive control module is coupled with the display panel and used for providing the drive signals of the picture frames for the display panel; the power-saving module is coupled with the drive control module; wherein, the display period of the picture frame is respectively provided with the first period and the second period. In the first period, the monitor turns to the display mode. In the second period, the power-saving model adjusts the operational parameters of the drive control module to enable the monitor to be in the power-saving mode; thereby, the power consumption of the monitor is greatly reduced.
Description
Technical field
The invention relates to a kind of Drive Control Technique of display, and particularly relevant for a kind of Drive Control Technique with electricity-saving function.
Background technology
Along with development of science and technology, display is considerably popularized.Based on the principle of people's persistence of vision, when display by the picture of update displayed panel constantly, and per second presents when surpassing 24 picture frames (Frame), human eye can think that then the picture that display presented is continuous picture.Display presents the time that picture frame spent and then is referred to as the picture frame time (One Frame Time), and it is approximately 16.6ms.Show that at display the step of picture frame is further described with next.
Fig. 1 is the synoptic diagram of the display control mode of demonstration time of known picture frame and LCD.Fig. 2 is the Organization Chart of known LCD.Please merge with reference to Fig. 1 and Fig. 2, LCD 10 shows that the process of picture frame 100 is as follows.At first, time schedule controller (Timing Controller) 20 image data of exporting picture frame 100 according to sequential is given display data memory (Display Data Ram) 30.Then, 40 image datas that will be stored in the picture frame 100 of display data memory 30 of digital analog converter (Digital Analog Converter) are converted to aanalogvoltage.Export aanalogvoltage in the display panel 60 corresponding transistor (not illustrating) by source electrode impact damper (Source Buffer) 50 again.
Accept above-mentioned, in during LCD 10 demonstration picture frames 100, time schedule controller 20 also can the output timing control signal be given grid impact damper (Gate Buffer) 70, makes grid impact damper 70 can in time open corresponding transistor (not illustrating) in the display panel 60.In addition, time schedule controller 20 also can the output timing control signal be given common electrode impact damper (VCOM Buffer) 80, makes common electrode impact damper 80 provide the common electrode voltage of positive polarity or negative polarity to display panel 60.By that analogy, LCD 10 shows each picture frame (101 ... or the like) step, do not repeat them here.
In it should be noted that during LCD 10 each picture frames of demonstration, LCD 10 can be in display mode always.In display mode, storer voltage VSRAM, digital-to-analogue conversion voltage VDAC, source voltage VSP, common electrode high voltage VCOMH, common electrode low-voltage VCOML, grid high voltage VGH and grid low-voltage VGL all keep definite value.In addition, the oscillation frequency of the oscillator (not illustrating) in the time schedule controller 20 also can be kept definite value.That is to say, show each picture frame during in, the function of the known not special design power saving of LCD 10.
Summary of the invention
The objective of the invention is to, a kind of display is provided, to reduce the power consumption of display.
Another object of the present invention is to, a kind of drive controlling method of display is provided, to reach the power saving effect.
The invention provides a kind of drive controlling method of display, this display comprises the drive controlling module.The drive controlling method of display comprises a plurality of picture frames of demonstration, the step that wherein shows each picture frame comprises respectively, between the first phase, make display enter display mode, and in the second phase, by the running power supply of adjusting source electrode impact damper, digital analog converter, common electrode impact damper, grid impact damper, display data memory or grid impact damper in the drive controlling module, so that display enters battery saving mode.
In one embodiment of this invention, by the operating parameters of adjusting the drive controlling module, so that display enters the step of battery saving mode, comprise stopping to provide operating voltage or bias current, wherein operating voltage or bias current source electrode impact damper, digital analog converter, common electrode impact damper or grid impact damper in order to offer display.
In one embodiment of this invention, by the operating parameters of adjusting the drive controlling module, so that display enters the step of battery saving mode, comprise downgrading operating voltage or bias current, wherein operating voltage or bias current display data memory or grid impact damper in order to offer display.
In one embodiment of this invention, the operating parameters by adjusting the drive controlling module so that display enters the step of battery saving mode, comprises the oscillation frequency of the oscillator that downgrades display.In another embodiment, display showed 24 more than the picture frame at least in one second.In another embodiment, along with reducing with the length ratio of the second phase between the first phase, the power consumption of display also reduces thereupon.In an embodiment again, display is for keeping escope.
From another viewpoint, the present invention proposes a kind of drive controlling method of display, and this display comprises the drive controlling module.The drive controlling method of display was included between the first phase, and display enters display mode, to show first picture frame.In addition, in the second phase, by the running power supply of adjusting source electrode impact damper, digital analog converter, common electrode impact damper, grid impact damper, display data memory or grid impact damper in the drive controlling module,, and keep first picture frame so that display enters battery saving mode.Moreover between the third phase, display enters display mode, to show second picture frame.
In one embodiment of this invention, between the first phase with the third phase between length identical, and be definite value with the length ratio of the second phase between the first phase.
From another viewpoint, the invention provides a kind of display, comprise display panel, drive controlling module and power-saving control module.Display panel is in order to show a plurality of picture frames.The drive controlling module couples display panel, in order to drive signal that each picture frame is provided to display panel.The power-saving control module couples the drive controlling module.Wherein have between the first phase during the demonstration of each picture frame respectively and the second phase.During the first, display enters display mode.During the second, the power-saving control module is by the running power supply of adjusting source electrode impact damper, digital analog converter, common electrode impact damper, grid impact damper, display data memory or grid impact damper in the drive controlling module, so that display enters battery saving mode.
In one embodiment of this invention, when display entered battery saving mode, the power-saving control module downgraded operating voltage or bias current, wherein operating voltage and bias current display data memory or the grid impact damper in order to offer the drive controlling module.In another embodiment, when display entered battery saving mode, the power-saving control module stopped to provide operating voltage or bias current source electrode impact damper, digital analog converter, common electrode impact damper or grid impact damper to the drive controlling module.In another embodiment, display also comprises time schedule controller, and it couples drive controlling module and power-saving control module, in order to timing control signal and power saving switching signal to be provided.In an embodiment again, time schedule controller comprises oscillator, produces the operating frequency of time schedule controller according to the power saving switching signal.In an embodiment again, when display entered battery saving mode, oscillator downgraded above-mentioned operating frequency.
In one embodiment of this invention, the drive controlling module comprises common electrode impact damper, grid impact damper, source electrode impact damper, digital analog converter and display data memory.Common electrode impact damper, grid impact damper and source electrode impact damper all couple display panel, time schedule controller and power-saving control module.Digital analog converter couples source electrode impact damper, time schedule controller and power-saving control module.Display data memory couples digital analog converter, time schedule controller and power-saving control module.
In one embodiment of this invention, the power-saving control module comprises first～the 3rd power change-over switch.First power change-over switch is coupled to the common electrode impact damper, exports common electrode high voltage or common electrode low-voltage according to power saving switching signal and timing control signal and gives the common electrode impact damper.Whether the second source change-over switch is coupled to the source electrode impact damper, determine to provide source voltage to the source electrode impact damper according to the power saving switching signal.Whether the 3rd power change-over switch is coupled to digital analog converter, determine to provide digital-to-analogue conversion voltage to digital analog converter according to the power saving switching signal.
Accept above-mentionedly, first power regulator couples display data memory, in order to providing storer voltage to display data memory, and determines whether downgrade storer voltage according to the power saving switching signal.The second source regulator couples the grid impact damper, in order to providing grid high voltage or grid low-voltage to the grid impact damper, and according to power saving switching signal and timing control signal and determine whether downgrade grid high voltage or grid low-voltage.
Display of the present invention shows a plurality of picture frames, wherein has between the first phase during the demonstration of each picture frame respectively and the second phase.During the first, display enters display mode.During the second, by the operating parameters of adjusting the drive controlling module, so that display enters battery saving mode.Therefore, can significantly reduce the power consumption of display.
Description of drawings
For above-mentioned feature and advantage of the present invention can be become apparent, several embodiment cited below particularly, and conjunction with figs. are described in detail below, wherein:
Fig. 1 is the synoptic diagram of the display control mode of demonstration time of known picture frame and LCD.
Fig. 2 is the Organization Chart of known LCD.
Fig. 3 is the Organization Chart according to the display of one embodiment of the invention.
Fig. 4 is the synoptic diagram according to the display control mode of the demonstration time of a kind of picture frame of one embodiment of the invention and display.
Fig. 5 is the drive controlling method flow diagram according to a kind of display of one embodiment of the invention.
Embodiment
In known display was during each picture frame of demonstration, display can be in display mode always, and its power consumption is quite big.Therefore, be divided between the first phase and the second phase during the demonstration of embodiments of the invention with each picture frame.During the first, display enters display mode, to show above-mentioned picture frame.During the second, by the operating parameters of adjusting the drive controlling module, so that display enters battery saving mode, to keep above-mentioned picture frame.Thus, then can significantly reduce the power consumption of display.Following elder generation does further explanation at the framework of display.
Fig. 3 is the Organization Chart according to the display of one embodiment of the invention.Please refer to Fig. 3, in the present embodiment, display comprises display panel 60, drive controlling module 410, power-saving control module 400 and time schedule controller 20.In the present embodiment, display is that example describes with LCD 11, but in other embodiments, display also can be any type (Hold Type) display of keeping.
Hold above-mentioned.Display panel 60 is in order to show a plurality of picture frames.Drive controlling module 410 couples display panel 60, in order to drive signal that each picture frame is provided to display panel 60.Power-saving control module 400 couples drive controlling module 410, can adjust the operating parameters of drive controlling module 410.In more detail, power-saving control module 400 can be used to control or regulate operating voltage or the bias current that offers each device in the drive controlling module 410.Time schedule controller 20 couples drive controlling module 410 and power-saving control module 400, in order to timing control signal S to be provided
TCWith power saving switching signal S
PS, signal S wherein
TCIn order to the action sequence of each device in the control LCD 11, to cooperate the opportunity that shows that each picture frame shows, signal SPS then enters display mode or battery saving mode in order to control LCD 11.Time schedule controller 20 has comprised oscillator 22, and the oscillation frequency of oscillator 22 can be used as the operating frequency (or claiming clock pulse) of time schedule controller 20, but oscillator 22 and basis signal S
PSAnd adjust its oscillation frequency.
Hold above-mentionedly, drive controlling module 410 comprises common electrode impact damper 80, grid impact damper 70, source electrode impact damper 50, digital analog converter 40 and display data memory 30.
On the other hand, 400 of power-saving control modules have comprised power change-over switch (Power Switch) 421～423 and power regulator (Power Regulator) 431,432.When LCD 11 enters battery saving mode, power-saving control module 400 can stop to provide operating voltage or bias current to the partial devices in the drive controlling module 410, perhaps can downgrade the operating voltage or the bias current power supply that offer the partial devices in the drive controlling module 410, to reduce the power consumption of LCD 11.
Hold above-mentionedly, power change-over switch 421 is coupled to common electrode impact damper 80, receives voltage V
COMHWith V
COMLBut, and basis signal S
PSAnd S
TCAnd whether decision exports common electrode high voltage V
COMH 'Or common electrode low-voltage V
COML 'Give common electrode impact damper 80.Power change-over switch 422 is coupled to source electrode impact damper 50, receives voltage V
SPBut, and basis signal S
PSAnd whether decision provides source voltage V
SP 'Give source electrode impact damper 50.Power change-over switch 423 is coupled to digital analog converter 40, receives voltage V
DACBut, and basis signal S
PSAnd whether decision provides digital-to-analogue conversion voltage V
DAC 'Give digital analog converter 40.
Accept above-mentionedly, power regulator 431 couples display data memory 30, receives voltage V
SRAMBut, and basis signal S
PSAnd whether decision regulates storer voltage V
SRAM 'Give display data memory 30.Power regulator 432 couples grid impact damper 70, receives voltage V
GPBut, and basis signal S
PSAnd S
TCAnd provide grid high voltage V
GH 'Or grid low-voltage V
GL 'Give grid impact damper 70.Following elder generation does further explanation at the operation workflow of LCD 11.
Fig. 4 is the synoptic diagram according to the display control mode of the demonstration time of a kind of picture frame of one embodiment of the invention and display.Fig. 5 is the drive controlling method flow diagram according to a kind of display of one embodiment of the invention.Please merge with reference to Fig. 3, Fig. 4 and Fig. 5, suppose that in the present embodiment a picture frame time is 16.6ms, and be divided into during the demonstration with each picture frame between the first phase (with during 100a represent) with the second phase (with during 100b represent).In addition, in the present embodiment, during this time 100a with during the length of 100b for example be respectively 8.3ms and 8.3ms, but in other embodiments, have the knack of art technology person can be according to its demand the adjustment period between 100a with during the length ratio of 100b, along with the minimizing of length ratio, the power consumption of LCD 11 also can reduce thereupon.
Earlier to show that with LCD 11 picture frame 100 is that example describes.At first, during among the 100a, LCD 11 enters display mode (step S501).In display mode, LCD 11 can improve its sweep frequency, use during finish the action of scanning picture frame 100 among the 100a.
Hold above-mentionedly, time schedule controller 20 can be exported the image data of picture frame 100 according to sequential and give display data memory 30.Then, 40 of the digital analog converters image data that will be stored in the picture frame 100 of display data memory 30 is converted to aanalogvoltage.Export aanalogvoltage in the display panel 60 corresponding transistor (not illustrating) by source electrode impact damper 50 again.
In addition, during among the 100a, time schedule controller 20 also can be given grid impact damper 70 by output signal STC, makes grid impact damper 70 can in time open corresponding transistor (not illustrating) in the display panel 60, and then makes corresponding transistor receive the aanalogvoltage that source electrode impact damper 50 is exported.In addition, time schedule controller 20 also can output signal STC be given common electrode impact damper 80, makes common electrode voltage that common electrode impact damper 80 provides positive polarity or negative polarity to display panel 60, with the usefulness as reversal of poles (Polarity Inversion).Under the collocation of above-mentioned each device, 60 of display panels can present picture frame 100.
It should be noted that during among the 100b, can utilize power-saving control module 400 to adjust the operating parameters of drive controlling modules 410, so that LCD 11 can enter battery saving mode (step S502).Generally speaking, the penetration of the liquid crystal of display panel 60 (not illustrating) light valve is normally controlled with voltage.That is to say that the liquid crystal of display panel 60 (not illustrating) light valve is not being accepted under the voltage-controlled situation, the state before its penetration can maintain.Even if so LCD 11 during can enter battery saving mode among the 100b, but display panel 60 also can keep and show picture frame 100, and can not badly influence picture quality.
Accept above-mentioned, in battery saving mode, but power supply switch unit 421 basis signal S
TCPolarization state close voltage V
COMH 'Or V
COML 'One of them.In more detail, as signal S
TCDuring for the positive polarity state, display panel 60 only needs voltage V
COMH ', therefore then can be with voltage V
COML 'Close; Otherwise, as signal S
TCDuring for the negative polarity state, display panel 60 only needs voltage V
COML ', therefore then can be with voltage V
COMH 'Close.
In addition, because in battery saving mode, the image data that source electrode impact damper 50 and digital analog converter 40 do not need picture frame 100 is provided again is to display panel 60, and grid impact damper 70 does not also need the transistor of display panel 60 is carried out switch, so power supply switch unit 422 can stop to provide voltage V
SP 'Give source electrode impact damper 50, and power supply switch unit 423 can stop to provide voltage V
DAC 'Give digital analog converter 40, power regulator 432 then can stop to provide voltage V
GH 'And can downgrade voltage V
GL '
Moreover in battery saving mode, oscillator 22 can downgrade the operating frequency of time schedule controller 20, and power regulator 431 also can downgrade the voltage V that offers display data memory 30
SRAM ', so that time schedule controller 20 can be stored in picture frame 101 in the display data memory 30 in advance.Then, have the knack of art technology person by that analogy LCD 11 show and then repeat no more the step of picture frames 101 and each picture frame afterwards thereof at this.
Embodiments of the invention and in comparison known, embodiments of the invention are by increasing the mode of sweep frequency, with during finish the scanning motion of picture frame 100 among the 100a, therefore can during among the 100b, the part voltage or the electric current that utilize power-saving control module 400 to downgrade or close to offer drive controlling module 410 are so can significantly reduce the power consumption of LCD 11.Moreover, the picture frame time of embodiments of the invention is with known identical, so embodiments of the invention also can show 24 more than the picture frame certainly in one second, that is to say that embodiments of the invention can't have influence on the fluency of picture.
What deserves to be mentioned is, though display and drive controlling method thereof have been depicted a possible kenel in the foregoing description, usually know that the knowledgeable should know but have in the affiliated technical field, each manufacturer is all different for the design of display and drive controlling method thereof, and therefore application of the present invention is when being not restricted to the possible kenel of this kind.In other words, so long as display enters display mode during the first, to show a picture frame, and during the second by the operating parameters of adjusting this drive controlling module, so that display enters battery saving mode,, be to have met spiritual place of the present invention just to keep above-mentioned picture frame.Below again for several examples make have the knack of art technology person can clearer spiritual place of the present invention.
For instance, in battery saving mode, have the knack of this area and know that the knowledgeable can also downgrade or stop to provide the operating voltage or the bias current of other device in the display, for example shift registor (Shift Register), potential transfer device (Level Shifter), digital buffer amplifier (Digital Buffer) ... or the like, the present invention is not as limit.
Moreover, though will be divided between the first phase during the demonstration of each picture frame respectively and the second phase in the foregoing description, but in other embodiments, have the knack of this area and know that the knowledgeable also can be according to spirit of the present invention, and change into during the demonstration with each picture frame be divided into a plurality of during, and with the staggered running of display mode and battery saving mode.
In sum, the present invention is in showing between the first phase of a picture frame, and display can enter display mode, and in the second phase that shows above-mentioned picture frame, by the operating parameters of adjusting the drive controlling module, so that display enters battery saving mode.Therefore, can significantly reduce the power consumption of display.In addition, embodiments of the invention have following advantage at least:
1, when battery saving mode, the operating voltage or the bias current that utilize the power-saving control module to downgrade to offer the device in the drive controlling module not only can be possessed original picture quality, more can significantly reduce power consumption.
2, when battery saving mode, utilize the power-saving control module to stop to provide operating voltage or bias current to the device in the drive controlling module, not only can possess original picture quality, more can significantly reduce power consumption.
Though the present invention discloses as above with several embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when looking accompanying being as the criterion that claim defines.
Claims (23)
1. the drive controlling method of a display, this display comprises a drive controlling module, it is characterized in that, the drive controlling method of this display comprises:
Show a plurality of picture frames, show that wherein respectively this picture frame comprises respectively:
Between a first phase, make this display enter a display mode; And
In a second phase, by adjusting one source pole impact damper in this drive controlling module, a digital analog converter, having running power supply altogether, so that this display enters a battery saving mode with electrode impact damper, a grid impact damper or a display data memory.
2. the drive controlling method of display as claimed in claim 1 is characterized in that, wherein by the running power supply of adjusting this drive controlling module, so that this display enters the step of this battery saving mode, comprising:
Stop to provide an operating voltage or a bias current, wherein this operating voltage or this bias current are in order to offer the above-mentioned source electrode impact damper of this display, above-mentioned digital analog converter, above-mentioned common electrode impact damper or above-mentioned grid impact damper.
3. the drive controlling method of display as claimed in claim 1 is characterized in that, wherein by the running power supply of adjusting this drive controlling module, so that this display enters the step of this battery saving mode, comprising:
Downgrade an operating voltage or a bias current, wherein this operating voltage or this bias current above-mentioned display data memory or above-mentioned grid impact damper in order to offer this display.
4. the drive controlling method of display as claimed in claim 1 is characterized in that, wherein by the running power supply of adjusting this drive controlling module, so that this display enters the step of this battery saving mode, comprising:
Downgrade the oscillation frequency of an oscillator of this display.
5. the drive controlling method of display as claimed in claim 1 is characterized in that, wherein this display showed 24 more than the picture frame at least in one second.
6. the drive controlling method of display as claimed in claim 1 is characterized in that, wherein along with reducing with the length ratio of this second phase between this first phase, the power consumption of this display also reduces thereupon.
7. the drive controlling method of display as claimed in claim 1 is characterized in that, wherein this display is for keeping escope.
8. the drive controlling method of a display, this display comprises a drive controlling module, it is characterized in that, the drive controlling method of this display comprises:
Between a first phase, this display enters a display mode, to show one first picture frame;
In a second phase, by adjusting one source pole impact damper in this drive controlling module, a digital analog converter, having running power supply altogether with electrode impact damper, a grid impact damper or a display data memory, so that this display enters a battery saving mode, and keep this first picture frame; And
Between a third phase, this display enters this display mode, to show one second picture frame.
9. the drive controlling method of display as claimed in claim 8 is characterized in that, wherein by the running power supply of adjusting this drive controlling module, so that this display enters the step of this battery saving mode, comprising:
Stop to provide an operating voltage or a bias current, wherein this operating voltage or this bias current are in order to offer the above-mentioned source electrode impact damper of this display, above-mentioned digital analog converter, above-mentioned common electrode impact damper or above-mentioned grid impact damper.
10. the drive controlling method of display as claimed in claim 8 is characterized in that, this display enters the step of this battery saving mode, comprising:
Downgrade an operating voltage or a bias current, wherein this operating voltage or this bias current above-mentioned display data memory or above-mentioned grid impact damper in order to offer this display.
11. the drive controlling method of display as claimed in claim 8 is characterized in that, this display enters the step of this battery saving mode, comprising:
Downgrade the oscillation frequency of an oscillator of this display.
12. the drive controlling method of display as claimed in claim 8 is characterized in that, wherein this display showed 24 more than the picture frame at least in one second.
13. the drive controlling method of display as claimed in claim 8 is characterized in that, wherein should be between the first phase with this third phase between length identical, and should be between the first phase with the length ratio of this second phase be certain value.
14. the drive controlling method of display as claimed in claim 8 is characterized in that wherein this display is for keeping escope.
15. a display is characterized in that, comprising:
One display panel is in order to show a plurality of picture frames;
One drive controlling module couples this display panel, in order to drive signal that this picture frame respectively is provided to this display panel; And
One power-saving control module, couple this drive controlling module, wherein respectively have respectively during the demonstration of this picture frame between a first phase and a second phase, in between this first phase, this display enters a display mode, in this second phase, this power-saving control module is by adjusting one source pole impact damper in this drive controlling module, a digital analog converter, having the running power supply with electrode impact damper, a grid impact damper or a display data memory altogether, so that this display enters a battery saving mode.
16. display as claimed in claim 15, it is characterized in that, wherein when this display enters this battery saving mode, this power-saving control module downgrades an operating voltage or a bias current, this operating voltage and this bias current this display data memory or this grid impact damper in order to offer this drive controlling module.
17. display as claimed in claim 15, it is characterized in that, wherein when this display enters this battery saving mode, this power-saving control module stops to provide an operating voltage or a bias current this source electrode impact damper, this digital analog converter, this common electrode impact damper or this grid impact damper to this drive controlling module.
18. display as claimed in claim 15 is characterized in that, also comprises:
Time schedule controller couples this drive controlling module and this power-saving control module, in order to a timing control signal and a power saving switching signal to be provided.
19. display as claimed in claim 18 is characterized in that, this time schedule controller wherein comprises:
One oscillator produces an operating frequency of this time schedule controller according to this power saving switching signal.
20. display as claimed in claim 19 is characterized in that, wherein when this display entered this battery saving mode, this oscillator downgraded this operating frequency.
21. display as claimed in claim 18 is characterized in that, wherein above-mentioned common electrode impact damper couples this display panel, this time schedule controller and this power-saving control module;
Above-mentioned grid impact damper couples this display panel, this time schedule controller and this power-saving control module;
Above-mentioned source electrode impact damper couples this display panel, this time schedule controller and this power-saving control module;
Above-mentioned digital analog converter couples this source electrode impact damper, this time schedule controller and this power-saving control module;
Above-mentioned display data memory couples this digital analog converter, this time schedule controller and this power-saving control module.
22. display as claimed in claim 21 is characterized in that, this power-saving control module wherein comprises:
One first power change-over switch is coupled to this common electrode impact damper, exports altogether the electricity consumption very high voltage according to this power saving switching signal and this timing control signal or gives this common electrode impact damper with the electrode low-voltage altogether;
Whether one second source change-over switch is coupled to this source electrode impact damper, determine to provide one source pole voltage to this source electrode impact damper according to this power saving switching signal;
Whether one the 3rd power change-over switch is coupled to this digital analog converter, determine to provide a digital-to-analogue conversion voltage to this digital analog converter according to this power saving switching signal;
One first power regulator couples this display data memory, in order to providing a storer voltage to this display data memory, and determines whether to downgrade this storer voltage according to this power saving switching signal; And
One second source regulator, couple this grid impact damper, in order to providing a grid high voltage or a grid low-voltage to this grid impact damper, and according to this power saving switching signal and this timing control signal and determine whether to downgrade this grid high voltage or this grid low-voltage.
23. display as claimed in claim 15 is characterized in that, wherein this display is for keeping escope.
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| CN102707783A (en) * | 2011-03-28 | 2012-10-03 | 鸿富锦精密工业（深圳）有限公司 | Display device and display method |
| JP6057462B2 (en) * | 2013-01-24 | 2017-01-11 | シナプティクス・ジャパン合同会社 | Semiconductor device |
| TW201519208A (en) * | 2013-11-01 | 2015-05-16 | Novatek Microelectronics Corp | Display driving device and method for driving display |
| CN103915073B (en) * | 2014-03-26 | 2017-10-13 | 京东方科技集团股份有限公司 | A kind of display panel, drive circuit and its control method and display device |
| JP6771149B2 (en) * | 2015-10-06 | 2020-10-21 | パナソニックＩｐマネジメント株式会社 | Information terminal control method and information system |
| US10817044B2 (en) * | 2018-03-28 | 2020-10-27 | Raydium Semiconductor Corporation | Power saving control apparatus and power saving control method applied to display driving circuit |
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| CN1674082A (en) * | 2004-02-18 | 2005-09-28 | 夏普株式会社 | Liquid crystal display device, driving method, driving device, and display control device |
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