CN102213995A - Display system and electricity saving method thereof - Google Patents
Display system and electricity saving method thereof Download PDFInfo
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- CN102213995A CN102213995A CN2010101643452A CN201010164345A CN102213995A CN 102213995 A CN102213995 A CN 102213995A CN 2010101643452 A CN2010101643452 A CN 2010101643452A CN 201010164345 A CN201010164345 A CN 201010164345A CN 102213995 A CN102213995 A CN 102213995A
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Abstract
The invention discloses a display system and an electricity saving method thereof. The display system comprises a chip set, a video transmission interface, a display panel and a picture memory unit, wherein the video transmission interface is coupled between the chip set and the display panel. The electricity saving method comprises the following steps that: pictures of a video stream are stored in the picture memory unit adaptively; according to a previous picture and a current picture of the video stream, the chip set judges whether the current picture is a dynamic picture or a static picture; and when the current picture is the static picture, the video transmission interface is operated in an electricity-saving mode and the display panel displays the pictures stored in the picture memory unit. By the electricity saving method, the electricity consumption of the display system can be reduced.
Description
Technical field
The present invention relates to a kind of power conservation techniques, and be particularly related to a kind of power conservation techniques of display system.
Background technology
Display all is provided with battery saving mode and normal mode at present.Do not using under the situation of display for a long time, the changeable battery saving mode that enters of display is used the power consumption that reduces display.When the user will reuse display, display can enter normal mode from the battery saving mode switching.
Accept above-mentionedly, under normal mode, tube display shows dynamic menu (a dynamic frame) or tableaux (a static frame), and each module of display interior all must ceaselessly operate.That is to say that even if same tableaux of the long-time demonstration of display, each module of display interior still must ceaselessly operate, and uses and keeps above-mentioned tableaux, long-term accumulated is got off, and the power consumption of display is also quite surprising.
For instance, recently, people have been accustomed to using a computer and have carried out bulletin.In the bulletin process, the picture that display presented is generally tableaux.Only under switching during one page, the picture of display just can change (can be described as dynamic menu).
The frame updating frequency of supposing display is 60Hz, totally 60 pages of the contents of bulletin, and the speaker estimates to spend give a lecture in 1 hour.In this example, the shown dynamic menu of display is 60, and tableaux is but opened up to 60 * 60 * 60-60=215940.Therefore, in the bulletin process, display be if can carry out power saving program, but can not have influence on the content that spectators watch bulletin, then can save a large amount of electric power.
Summary of the invention
The invention provides a kind of display system and electricity saving method thereof, can reduce the power consumption of display system.
The present invention proposes a kind of electricity saving method of display system.Display system comprises chipset, video transmission interface, a display panel and a picture storage unit.The video transmission interface is coupled between chipset and the display panel.Electricity saving method comprises that adaptively the picture with video flowing is stored in the picture storage unit.Chipset can judge that with present picture present picture is dynamic menu or tableaux according to the previous picture of video flowing.When present picture was tableaux, the video transmission interface operation was at battery saving mode, and display panel shows the picture that is stored in the picture storage unit.
In one embodiment of this invention, the step that adaptively picture of video flowing is stored in the picture storage unit comprises: when previous picture be dynamic menu and at present picture be tableaux, with previous picture or at present picture be stored in the picture storage unit.
In one embodiment of this invention, chipset judges that according to the previous picture of video flowing and picture at present present picture is that the step of dynamic menu or tableaux comprises: when present picture was identical with previous picture, chipset judges that present picture is a tableaux.Different with previous picture when present picture, chipset judges that present picture is a dynamic menu.
In one embodiment of this invention, electricity saving method also comprises: when present picture was dynamic menu, the video transmission interface operation was at normal mode, and display panel shows the video flowing of flow through chipset and video transmission interface.
In one embodiment of this invention, previous picture is a continuous pictures with present picture, and previous picture is before present picture.
In one embodiment of this invention, electricity saving method comprises also that when many continuous pictures of video flowing are all tableaux the video transmission interface enters battery saving mode by the normal mode switching.
From another angle, the present invention proposes a kind of display system, and it comprises chipset, video transmission interface, picture storage unit and display panel.Chipset can judge that with present picture present picture is dynamic menu or tableaux according to the previous picture of video flowing.Video transmission interface coupling chip group can be used to transmitting video-frequency flow.The picture storage unit couples the video transmission interface, the picture of adaptability ground store video stream.Display panel couples picture storage unit and video transmission interface.When present picture was tableaux, the video transmission interface operation was at battery saving mode, and display panel can show the picture that is stored in the picture storage unit.
In one embodiment of this invention, chipset comprises CPU (central processing unit), north bridge chips or drawing chip or its combination.In another embodiment, the video transmission interface comprises elasticity display interface, South Bridge chip, platform control hub or low-voltage differential signal transmitter or its combination.
In one embodiment of this invention, display system also comprises storer.Storer coupling chip group.Chipset can capture the previous picture and present picture of video flowing from storer.
In one embodiment of this invention, display system also comprises the low-voltage differential signal transmitter.The low-voltage differential signal transmitter couples video transmission interface, picture display unit and display panel.
Based on above-mentioned, the present invention is stored in the picture storage unit with the picture of video flowing adaptively.When present picture was tableaux, the video transmission interface was operable in battery saving mode, and display panel can directly show the picture that is stored in the picture storage unit.Can reduce the whole power consumption of display system thus.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram according to a kind of display system of one embodiment of the invention.
Fig. 2 is the process flow diagram according to the electricity saving method of a kind of display system of one embodiment of the invention.
Fig. 3 is the synoptic diagram according to a kind of display system of another embodiment of the present invention.
Fig. 4 is the synoptic diagram according to a kind of display system of another embodiment of the present invention.
[main element symbol description]
10～12: display system
20: chipset
30～32: the video transmission interface
50: the picture storage unit
60: display panel
70: storer
80: the elasticity display interface
90: platform control hub
100: the low-voltage differential signal transmitter
S201～S204: each step of the electricity saving method of display system
Embodiment
In known technology, tube display is not showing dynamic menu or tableaux, and the module of display interior all must ceaselessly operate, and this practice can cause a large amount of power consumption.
On the contrary, embodiments of the invention have been set up the picture storage unit in display system.The picture that chipset can be used to differentiate video flowing is dynamic menu or tableaux.When the picture of video flowing was changed into tableaux by dynamic menu, display system can be stored in this tableaux the picture storage unit.Then, the picture of video flowing is if maintain tableaux, and display system can be with the video transmission interface operation at battery saving mode, and display panel can directly show the picture that is stored in the picture storage unit.Thus, when display system when showing tableaux, operate in battery saving mode video transmission interface adaptability, so can reduce the whole power consumption of display system.Elaborate embodiments of the invention below with reference to the accompanying drawings, accompanying drawing is for example understood example embodiment of the present invention, wherein same the or similar element of same numeral indication.
Fig. 1 is the synoptic diagram according to a kind of display system of one embodiment of the invention.Please refer to Fig. 1, display system 10 can comprise chipset 20, video transmission interface 30, picture storage unit 50 and display panel 60.Video transmission interface 30 coupling chip groups 20, picture storage unit 50 and display panel 60.
Fig. 2 is the process flow diagram according to the electricity saving method of a kind of display system of one embodiment of the invention.Please merge with reference to Fig. 1 and Fig. 2, at first can be by step S201, the picture with video flowing is stored in picture storage unit 50 adaptively.For instance, (previous picture was a dynamic menu when the picture of chipset 20 differentiation video flowings becomes tableaux by dynamic menu, picture is a tableaux at present), display system 10 can be stored in picture storage unit 50 with present picture, but the present invention is not limited to this.Note that display system 10 also can be stored in picture storage unit 50 with previous picture if at present under picture and the situation that before picture was identical.
Accept above-mentioned, in the present embodiment, because when the picture of video flowing becomes tableaux by dynamic menu, display system 10 just is stored in picture storage unit 50 with picture, therefore display system 10 need not be carried out access (Access) to picture storage unit 50 continually, can reduce the power consumption of display system 10.
Then, in step S202, chipset 20 can judge that with present picture present picture is dynamic menu or tableaux according to the previous picture of video flowing, and produces battery saving mode signal or normal mode signal according to this.More particularly, chipset 20 (Real-time) in real time judges that present picture is dynamic menu or tableaux, determines according to this whether the part of module in the display system 10 enters battery saving mode.
When present picture is tableaux, the execution in step that can continue S203, video transmission interface 30 operates in battery saving mode, and display panel 60 shows the picture that is stored in picture storage unit 50.More particularly, when present picture was tableaux, chipset 20 can produce the battery saving mode signal and give video transmission interface 30, picture storage unit 50 and display panel 60.Video transmission this moment interface 30 does not need to be transferred to display panel 60 from the video flowing of chipset 20.Video transmission interface 30 can enter battery saving mode according to the battery saving mode signal, and therefore the chipset 20 of flowing through interrupts with the video flowing meeting of video transmission interface 30.In the case, picture storage unit 50 can provide its picture of storing to display panel 60, that is display panel 60 can show the picture that is stored in picture storage unit 50.
What deserves to be mentioned is that because the present picture of video flowing is a tableaux, so display panel 60 shows and be stored in the picture of picture storage unit 50 or the present picture of display of video streams, do not have any difference.That is to say that video transmission interface 30 enters battery saving mode before with afterwards, the beholder is from display panel 60 and can't find out any different shape.But video transmission interface 30 enters after the battery saving mode, but can save considerable electric power for display system 10.
Utilizing display system 10 to carry out bulletin with the speaker is example.The frame updating frequency (Frame Rate) of supposing display system 10 is 60Hz, totally 60 pages of the contents of bulletin, and the speaker estimates to spend give a lecture in 1 hour.In this example, display system 10 needs 216000 pictures of demonstration altogether, and it is dynamic menu that 60 pictures are wherein only arranged, and other has 215940 tableauxs.Therefore, in the bulletin process, video transmission interface 30 has the time above 99.97% to operate in battery saving mode, only has the time less than 0.03% to operate in normal mode.Thus, can find out obviously under present embodiment and the known art that present embodiment has quite significant power saving effect really.
On the other hand, in step S202, when present picture is judged to be dynamic menu, the execution in step that can continue S204, video transmission interface 30 is operable in normal mode, and display panel 60 shows the video flowing of flow through chipset 20 and video transmission interface 30.More particularly, when present picture transferred dynamic menu to by tableaux, chipset 20 can produce the normal mode signal and give video transmission interface 30, picture storage unit 50 and display panel 60.Video transmission interface 30 can enter normal mode from the battery saving mode switching according to the normal mode signal.After video transmission interface 30 entered normal mode, display panel 60 can normally receive the video flowing that comes from flow through chipset 20 and video transmission interface 30.In the case, picture storage unit 50 need not offer the picture of its storage display panel 60, that is the video flowing exported of display panel 60 displayable video transmission interfaces 30.
From as can be known above-mentioned, when display system 10 picture displayed became dynamic menu by tableaux, video transmission interface 30 can switch in real time and enters normal mode, and display panel 60 is the dynamic menu exported of display video transmission interface 30 in real time also.In other words, video transmission interface 30 switches between battery saving mode and normal mode, and the user also can't find out different shape from display panel 60 shown pictures.
Though display system and electricity saving method thereof have been depicted a possible type in the foregoing description, but those skilled in the art should know, each manufacturer is all different for the design of display system and electricity saving method thereof, and therefore application of the present invention is when being not limited in the possible type of this kind.In other words, so long as when at present picture was tableaux, the video transmission interface operation was at battery saving mode, display panel shows the picture that is stored in the picture storage unit, has been to have met spiritual place of the present invention just.Below lift several embodiments again so that those skilled in the art can further understand spirit of the present invention, and implement the present invention.
In the above-described embodiments, when present picture transfers tableaux to by dynamic menu, 20 of chipsets produce the battery saving mode signal and give video transmission interface 30, picture storage unit 50 and display panel 60, and this practice only is a kind of selection embodiment.In other embodiments, chipset 20 can detect video flowing and whether occurs many tableauxs continuously as the foundation that produces the battery saving mode signal.Art technology person can define the quantity of above-mentioned many tableauxs according to the practical application situation.So can avoid interspersed many tableauxs in the animation, and then cause video transmission interface 31 between normal mode and battery saving mode, to switch continually.
In addition, in the above-described embodiments, the display system 10 that Fig. 1 illustrated only is a kind of selection embodiment, and the present invention is not as limit.Those skilled in the art can change the framework and the embodiment thereof of display system 10 according to its demand.For instance, Fig. 3 is the synoptic diagram according to a kind of display system of another embodiment of the present invention.Please refer to Fig. 3, in the present embodiment, display system 11 comprises chipset 20, video transmission interface 31, picture storage unit 50, display panel 60, storer 70 and low-voltage differential signal transmitter 100.Video transmission interface 31 comprises elasticity display interface 80 and platform control hub 90.
When chipset 20 judged that present picture is dynamic menu, video transmission interface 31 was operable in normal mode, and display panel 60 can show the video flowing of flow through chipset 20 and video transmission interface 31.When chipset 20 judged that present picture becomes tableaux by dynamic menu, display panel 60 can be stored in picture storage unit 50 with present picture.If picture continues to maintain tableaux at present, video transmission interface 31 is operable in battery saving mode, and display panel 60 can show the picture that is stored in picture storage unit 50, so can reduce the power consumption of display system 11.When present picture transferred dynamic menu to by tableaux, video transmission interface 31 can change into and operate in normal mode, and display panel 60 can show the video flowing of flow through chipset 20 and video transmission interface 31.Present embodiment also can be reached the effect similar with the foregoing description thus.
Again for example, Fig. 4 is the synoptic diagram according to a kind of display system of another embodiment of the present invention.Please refer to Fig. 4, in the present embodiment, display system 12 comprises chipset 20, video transmission interface 32, picture storage unit 50 and display panel 60.Video transmission interface 32 coupling chip groups 20, picture storage unit 50 and display panel 60.
When chipset 20 judged that present picture is dynamic menu, video transmission interface 32 was operable in normal mode, and display panel 60 can show the video flowing of flow through chipset 20 and video transmission interface 32.When chipset 20 judged that present picture becomes tableaux by dynamic menu, video transmission interface 32 can be stored in picture storage unit 50 with present picture.If picture continues to maintain tableaux at present, the first group unit of video transmission interface 32 is operable in battery saving mode, and the second group unit is operable in normal mode.The above-mentioned first group unit for example is to be used for the video flowing of chipset 20 outputs is transferred to display panel 60.The above-mentioned second group unit for example is to be used for the picture that picture storage unit 50 is stored is transferred to display panel 60.That is to say that display panel 60 can show the picture that is stored in picture storage unit 50, so can reduce the power consumption of display system 12.
Accept above-mentionedly, when present picture transferred dynamic menu to by tableaux, the first group unit of video transmission interface 32 can change into and operate in normal mode, so display panel 60 can show the video flowing of flow through chipset 20 and video transmission interface 32.Present embodiment also can be reached the effect similar with the foregoing description thus.
In sum, in the present invention, when present picture was tableaux, the video transmission interface operation was at battery saving mode, and display panel can show the picture that is stored in the picture storage unit.So not only can not influence the user and watch image content, also can reduce the power consumption of display system.In addition, embodiments of the invention also have following effect:
1. when the picture of video flowing became tableaux by dynamic menu, display system just was stored in the picture storage unit with picture.So display system then need not be carried out access to the picture storage unit continually, can further reduce the power consumption of display system.
2. when many continuous pictures of video flowing were all tableaux, the video transmission interface can enter battery saving mode by the normal mode switching.So can avoid the video transmission interface between normal mode and battery saving mode, to switch continually.
Though the present invention with embodiment openly as above; right its is not in order to qualification the present invention, those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the appended claims person of defining.
Claims (11)
1. the electricity saving method of a display system, this display system comprises a chipset, a video transmission interface, a display panel and a picture storage unit, and this video transmission interface is coupled between this chipset and this display panel, and this electricity saving method comprises:
Picture with a video flowing is stored in this picture storage unit adaptively;
This chipset judges that according to a previous picture and a present picture of this video flowing this present picture is dynamic menu or tableaux; And
When this present picture was tableaux, this video transmission interface operation was at battery saving mode, and this display panel shows this picture that is stored in this picture storage unit.
2. electricity saving method as claimed in claim 1 wherein is stored in this picture of this video flowing the step of this picture storage unit adaptively, comprising:
When this previous picture is that dynamic menu and this present picture are tableaux, should previous picture or this present picture be stored in this picture storage unit.
3. electricity saving method as claimed in claim 1, wherein this chipset judges that with this present picture the step that this present picture is dynamic menu or tableaux comprises according to this previous picture of this video flowing:
When this present picture is identical with this previous picture, this chipset judges that this present picture is a tableaux; And
Different with this previous picture when this present picture, this chipset judges that this present picture is a dynamic menu.
4. electricity saving method as claimed in claim 1 also comprises:
When this present picture was dynamic menu, this video transmission interface operation was at normal mode, and this display panel shows this video flowing of flow through this chipset and this video transmission interface.
5. electricity saving method as claimed in claim 1, wherein this previous picture is a continuous pictures with this present picture, and this previous picture is before this present picture.
6. electricity saving method as claimed in claim 1 also comprises:
When many continuous pictures of this video flowing were all tableaux, this video transmission interface entered battery saving mode by the normal mode switching.
7. display system comprises:
One chipset judges that according to a previous picture and a present picture of a video flowing this present picture is dynamic menu or tableaux;
One video transmission interface couples this chipset, in order to transmit this video flowing; And
One picture storage unit couples this video transmission interface, in order to store a picture of this video flowing adaptively; And
One display panel couples this picture storage unit and this video transmission interface;
Wherein, when this present picture was tableaux, this video transmission interface operation was at battery saving mode, and this display panel shows this picture that is stored in this picture storage unit.
8. display system as claimed in claim 7, wherein this chipset comprises a CPU (central processing unit), a north bridge chips or a drawing chip or its combination.
9. display system as claimed in claim 7, wherein this video transmission interface comprises an elasticity display interface, a South Bridge chip, platform control hub or a low-voltage differential signal transmitter or its combination.
10. display system as claimed in claim 7 also comprises:
One storer couples this chipset, and wherein this chipset captures this previous picture and this present picture of this video flowing from this storer.
11. display system as claimed in claim 7 also comprises:
One low-voltage differential signal transmitter couples this video transmission interface, this picture display unit and this display panel.
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| CN2010101643452A CN102213995A (en) | 2010-04-09 | 2010-04-09 | Display system and electricity saving method thereof |
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| CN2010101643452A CN102213995A (en) | 2010-04-09 | 2010-04-09 | Display system and electricity saving method thereof |
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| CN102682720A (en) * | 2012-05-18 | 2012-09-19 | 苏州佳世达电通有限公司 | Display and electricity saving method applied to display |
| CN108877646A (en) * | 2018-07-26 | 2018-11-23 | 厦门凌阳华芯科技有限公司 | A kind of display circuit and display |
| CN109493796A (en) * | 2017-09-12 | 2019-03-19 | 上海和辉光电有限公司 | A kind of display equipment and its power consumption of screen control method |
| CN109493802A (en) * | 2017-09-12 | 2019-03-19 | 上海和辉光电有限公司 | A kind of display equipment and its power consumption of screen control method |
| CN109754755A (en) * | 2017-11-07 | 2019-05-14 | 上海和辉光电有限公司 | A kind of method of supplying power to of display panel, device and display equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102682720A (en) * | 2012-05-18 | 2012-09-19 | 苏州佳世达电通有限公司 | Display and electricity saving method applied to display |
| CN109493796A (en) * | 2017-09-12 | 2019-03-19 | 上海和辉光电有限公司 | A kind of display equipment and its power consumption of screen control method |
| CN109493802A (en) * | 2017-09-12 | 2019-03-19 | 上海和辉光电有限公司 | A kind of display equipment and its power consumption of screen control method |
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| CN109754755A (en) * | 2017-11-07 | 2019-05-14 | 上海和辉光电有限公司 | A kind of method of supplying power to of display panel, device and display equipment |
| CN108877646A (en) * | 2018-07-26 | 2018-11-23 | 厦门凌阳华芯科技有限公司 | A kind of display circuit and display |
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Application publication date: 20111012 |