CN102420954A - Method for reducing power consumption of television and television - Google Patents
Method for reducing power consumption of television and television Download PDFInfo
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- CN102420954A CN102420954A CN2011103893349A CN201110389334A CN102420954A CN 102420954 A CN102420954 A CN 102420954A CN 2011103893349 A CN2011103893349 A CN 2011103893349A CN 201110389334 A CN201110389334 A CN 201110389334A CN 102420954 A CN102420954 A CN 102420954A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000008054 signal transmission Effects 0.000 claims description 7
- 238000003672 processing method Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention is suitable for the technical field of televisions and provides a method for reducing power consumption of a television and the television, wherein the method comprises the following steps: and in the process of transmitting the vertical blanking signal, turning off the backlight LED of the display screen within a preset range. According to the embodiment of the invention, the black level is output by the television in the process of transmitting the blanking signal, the display screen backlight LED lamp is turned off, the power consumption of the television is greatly reduced, the energy efficiency index of the television is improved under the condition of not increasing any cost, the problem that the energy efficiency indexes of most televisions in the market do not reach the standard is solved, and the real energy-saving and environment-friendly television is created.
Description
Technical field
The invention belongs to technical field of television sets, relate in particular to a kind of method and television set that reduces the television set power consumption.
Background technology
Green low-carbon, energy-conserving and environment-protective are the focus of society's great attention just; Color TV trade also must reach energy conservation and environment protection; Therefore, country formally implements " panel TV efficiency limit value and efficiency grade " standard, wherein; An important index is exactly a television set efficiency index, i.e. display area * brightness ÷ power consumption.According to division, television set efficiency index can be divided into three grades, and one-level efficiency index is 1.4cd/w, represents the highest level of current market like product; Secondary efficiency index is 1.0cd/w, is higher than the average level of market like product; Three grades of efficiency indexes are 0.6cd/w, are market access grade, are mainly used in to eliminate highly energy-consuming product on the market.Television set will stick the efficiency label, and those products not up to standard will be quit listing by force on the market.Numeral shows according to the relevent statistics, at present, has 15% panel TV not meet the efficiency classification standard approximately, and therefore, how improving television set efficiency index is the most urgent and primary current task.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method that reduces the television set power consumption, is intended to solve the problem that how to improve television set efficiency index.
The embodiment of the invention is achieved in that a kind of method that reduces the television set power consumption, and said method comprises the steps:
In the process that blanking signal on the scene transmits, close the LED backlight of display screen in the preset range.
The embodiment of the invention also provides a kind of television set, and said television set comprises:
Closing unit is used for the process that blanking signal on the scene transmits, and closes the LED backlight of display screen in the preset range.
The embodiment of the invention compared with prior art, beneficial effect is: in the process that transmits through blanking signal on the scene, close the LED backlight of display screen in the preset range; Utilize TV in transmission blanking signal process, to export black level, close display backlight LED lamp, reduce the power consumption of television set greatly; Do not increasing under any condition of cost; Improve television set efficiency index, solve most television set efficiency indexes problem not up to standard on the market, create the television set of real energy-conserving and environment-protective.
Description of drawings
Fig. 1 is the sketch map of the oscillogram of the composite video signal that provides of the embodiment of the invention one;
Fig. 2 is the flow chart of the realization of the TV signal processing method that provides of the embodiment of the invention one;
Fig. 3 is the flow chart of the realization of the TV signal processing method that provides of the embodiment of the invention two;
Fig. 4 is the flow chart of the realization of the TV signal processing method that provides of the embodiment of the invention three;
Fig. 5 is the structure chart of the television set that provides of the embodiment of the invention four;
Fig. 6 is the structure chart of the television set that provides of the embodiment of the invention five.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the process of present embodiment through blanking signal transmission on the scene, close the LED backlight of display screen in the preset range, blanking signal transmits and finishes then and there, then opens the LED backlight of the display screen of closing, and has improved the efficiency index of television set.
A kind of method that reduces the television set power consumption, said method comprises the steps:
In the process that blanking signal on the scene transmits, close the LED backlight of display screen in the preset range.
The embodiment of the invention also provides a kind of television set, and said television set comprises:
Closing unit is used for the process that blanking signal on the scene transmits, and closes the LED backlight of display screen in the preset range.
Below in conjunction with specific embodiment realization of the present invention is described in detail:
Embodiment one
Television set efficiency index is display area * brightness ÷ power consumption, all has been under the situation of the value of fixing in the area of display screen and brightness, improve television set efficiency index, can only reduce the power consumption of complete machine.For television set, power consumption depends primarily on display screen, promptly will reduce the Overall Power Consumption of television set, will reduce the power consumption of display screen exactly.Display screen is through backlight high brightness to be provided; And the light source that is evenly distributed, and backlight is to produce light source through lighting the LED fluorescent tube, after television set is opened; Backlight LED fluorescent tube just is in illuminating state always; And along with the increase of screen dimensions, fluorescent tube quantity is also increasing, and the power consumption of display screen also increases.Therefore, want to reduce the power of display screen, can realize through the time that reduces LED lamp luminescence backlight.
The vision signal of TV signal transmits with scan mode, comprises picture signal (trace) and blanking signal (flyback), is the oscillogram of composite video signal like accompanying drawing 1, from figure, can find out; In a TV signal scanning process, the vertical blanking impulse wider width, and image is sightless during this period of time; What export is the black picture, therefore, if during vertical interval signal transmits; Close the LED backlight of display screen, before next field picture signal output, open the backlight of display screen.Then can reduce the time of LED lamp luminescence, thereby reduce the power of display screen, improve the efficiency index of complete machine, Fig. 2 shows the flow chart of the realization of the TV signal processing method that the embodiment of the invention one provides, and details are as follows:
In step S201, in the process that blanking signal on the scene transmits, close the LED backlight of display screen in the preset range.
In the embodiment of the invention; The LED backlight of display screen is whole LED backlight on the backlight in the said preset range; Perhaps be backlight top LED backlight, promptly in the actual design use, can be chosen in as required in the process of field blanking signal transmission; Close All onboard led backlight, perhaps part is closed onboard led backlight.
In the process of present embodiment through blanking signal transmission on the scene, close the LED backlight of display screen in the preset range, utilize TV in transmission blanking signal process, to export black level; Close display backlight LED lamp; Reduce the power consumption of television set greatly, do not increasing under any condition of cost, improve television set efficiency index; Solve most television set efficiency indexes problem not up to standard on the market, create the television set of real energy-conserving and environment-protective.
Embodiment two
Fig. 3 shows the flow chart of the realization of the TV signal processing method that the embodiment of the invention two provides, and details are as follows:
In step S301, judge the current field blanking signal that whether begins to transmit, when judgement begins to transmit the field blanking signal, then close the LED backlight of display screen in the preset range.
In step S302, judge that whether said field blanking signal transmission finishes, and when judging that said field blanking signal transmits end, then opens the LED backlight of the display screen of closing.
Present embodiment is specifically through when judgement begins to transmit the field blanking signal; Then close the LED backlight of display screen in the preset range; When judging that said field blanking signal transmits end, then open the LED backlight of the display screen of closing, reduce the power consumption of television set greatly; Do not increasing under any condition of cost, improving television set efficiency index.
Embodiment three
Fig. 4 shows the flow chart of the realization of the TV signal processing method that the embodiment of the invention three provides, and details are as follows:
In step S401, judge whether current transmission signal is field system chronizing impulse, if, execution in step S402 then, if not, repeated execution of steps S401 then.
Can find out that from the TV signal figure of Fig. 1 the field blanking signal comprises leading Eq pulse, field sync signal; Post-equalizing pulse, 25 line synchronizing signals, at first output is exactly leading Eq pulse; Export 25 line synchronizing signals at last, because leading Eq pulse can not be represented the beginning of a field picture fully, so can pass through the field sync signal; With its sign that begins to transmit as the field blanking signal, be field sync signal if detect, explain to get into the field blanking district; Export black level, then close the LED backlight of display screen in the preset range.
In step S402, judge to begin to transmit the field blanking signal, then close the LED backlight of display screen in the preset range.
In the present embodiment, the I/O mouth control that LED switch backlight can be through central processing unit in the time of the I/O mouth can be set be low level, closes LED backlight, when the I/O mouth being set being high level, LED backlight is opened.
In step S403, judge whether current transmission signal is horizontal synchronizing pulse, if, execution in step S404 then, if not, repeated execution of steps S403 then.
In step S404, transmit end when detecting said horizontal synchronizing pulse, judge that the transmission of field blanking signal finishes, and then opens the LED backlight of the display screen of closing, and returns execution in step S401.
In the present embodiment, when closing LED backlight, need the checkout area blanking signal to transmit and whether finish; Specifically can judge that TV signal generally comprises 25 horizontal synchronizing pulses, transmit end when detecting 25 horizontal synchronizing pulses through judging horizontal synchronizing pulse; Judge that then the field blanking signal transmits end, will export next field picture signal, at this moment; The I/O mouth of control LED switch backlight is made as high level; Open the described LED backlight that closes display screen, LED lamp backlight is luminous, the normal display image of display screen.
In the present embodiment, after step S404 finishes, continue the output television image signal, redirect continues execution in step S401, so that the LED backlight of display screen periodically closes.
Present embodiment is then judged to begin to transmit the field blanking signal through when judging that current transmission signal is a field system chronizing impulse, is closed the LED backlight of display screen in the preset range; When judging that current transmission signal is horizontal synchronizing pulse, and detect said horizontal synchronizing pulse and transmit and finish, judging then that the field blanking signal transmits finishes; Open the LED backlight of said display screen of closing, utilize TV in transmission blanking signal process, to export black level, then close display backlight LED; Otherwise, then open and close display backlight LED, reduce the power consumption of television set greatly; Do not increasing under any condition of cost; Improve television set efficiency index, solve most television set efficiency indexes problem not up to standard on the market, create the television set of real energy-conserving and environment-protective.
Embodiment four
Fig. 5 shows the structure chart of the television set that the embodiment of the invention four provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
Said television set comprises closing unit 51.
In the present embodiment, the LED backlight of display screen is whole LED backlight on the backlight in the said preset range, perhaps is backlight top LED backlight.
Among the method embodiment one that the television set that the embodiment of the invention provides can use in aforementioned correspondence, details repeat no more at this referring to the description of the foregoing description one.
Embodiment five
Fig. 6 shows the structure chart of the television set that the embodiment of the invention five provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
In the present embodiment, said television set comprises 61.
The difference of present embodiment and embodiment four is that optional, closing unit 61 comprises closing module 611 and opens module 612.
Open module 612, be used to judge whether said field blanking signal transmission finishes, and when judging that said field blanking signal transmits end, then opens the LED backlight of the display screen of closing.
Optional, said closing module 611 is used to specifically judge whether current transmission signal is field system chronizing impulse, if, then judge to begin to transmit the field blanking signal, then close the LED backlight of display screen in the preset range.
Optional, the said module 612 of opening is used to specifically judge whether current transmission signal is horizontal synchronizing pulse, if, transmit end when detecting said horizontal synchronizing pulse, judge that the transmission of field blanking signal finishes, and then opens the LED backlight of the display screen of closing.
Among the method embodiment two, three that the television set that the embodiment of the invention provides can use in aforementioned correspondence, details repeat no more at this referring to the foregoing description two, 31 description.
It should be noted that in said apparatus and the system embodiment that each included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize function corresponding; In addition, the concrete title of each functional unit also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition; One of ordinary skill in the art will appreciate that all or part of step that realizes in above-mentioned each embodiment method is to instruct relevant hardware to accomplish through program; Corresponding program can be stored in the computer read/write memory medium; Described storage medium is like ROM/RAM, disk or CD etc.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method that reduces the television set power consumption is characterized in that, said method comprises the steps:
In the process that blanking signal on the scene transmits, close the LED backlight of display screen in the preset range.
2. the method for claim 1 is characterized in that, in the process that said blanking signal on the scene transmits, the step of closing the LED backlight of display screen in the preset range is specially:
Judge the current field blanking signal that whether begins to transmit, when judgement begins to transmit the field blanking signal, then close the LED backlight of display screen in the preset range;
Judge that whether said field blanking signal transmission finishes, and when judging that said field blanking signal transmits end, then opens the LED backlight of the display screen of closing.
3. method as claimed in claim 2 is characterized in that, saidly judges the current field blanking signal that whether begins to transmit, and when judgement began to transmit the field blanking signal, the step of then closing the LED backlight of display screen in the preset range was specially:
Judge whether current transmission signal is field system chronizing impulse, if, then judge to begin to transmit the field blanking signal, close the LED backlight of display screen in the preset range.
4. whether method as claimed in claim 2 is characterized in that, saidly judge that said field blanking signal transmits and finish, and when judging that said field blanking signal transmits when finishing, the step of then opening the LED backlight of the display screen of closing is specially:
Judge whether current transmission signal is horizontal synchronizing pulse, if, transmit end when detecting said horizontal synchronizing pulse, judge that then the field blanking signal transmits end, opens the described LED backlight that closes display screen.
5. the method for claim 1 is characterized in that, the LED backlight of display screen is whole LED backlight on the backlight in the said preset range, perhaps is backlight top LED backlight.
6. a television set is characterized in that, said television set comprises:
Closing unit is used for the process that blanking signal on the scene transmits, and closes the LED backlight of display screen in the preset range.
7. television set as claimed in claim 1 is characterized in that, said closing unit comprises:
Closing module is used to judge the current field blanking signal that whether begins to transmit, and when judgement begins to transmit the field blanking signal, then closes the LED backlight of display screen in the preset range;
Open module, be used to judge whether said field blanking signal transmission finishes, and when judging that said field blanking signal transmits end, then opens the LED backlight of the display screen of closing.
8. television set as claimed in claim 7 is characterized in that, said closing module is used to specifically judge whether current transmission signal is field system chronizing impulse, if, then judge to begin to transmit the field blanking signal, close the LED backlight of display screen in the preset range.
9. television set as claimed in claim 7 is characterized in that, the said module of opening; Be used to specifically judge whether current transmission signal is horizontal synchronizing pulse, if transmit end when detecting said horizontal synchronizing pulse; Judge that then the field blanking signal transmits end, opens the LED backlight of the display screen of closing.
10. television set as claimed in claim 1 is characterized in that, the LED backlight of display screen is whole LED backlight on the backlight in the said preset range, perhaps is backlight top LED backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103893349A CN102420954A (en) | 2011-11-30 | 2011-11-30 | Method for reducing power consumption of television and television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103893349A CN102420954A (en) | 2011-11-30 | 2011-11-30 | Method for reducing power consumption of television and television |
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| CN102420954A true CN102420954A (en) | 2012-04-18 |
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| CN2011103893349A Pending CN102420954A (en) | 2011-11-30 | 2011-11-30 | Method for reducing power consumption of television and television |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260048A (en) * | 2013-04-07 | 2013-08-21 | 熊猫电子集团有限公司 | Method for improving energy efficiency index of liquid crystal display television |
| CN105141862A (en) * | 2015-07-06 | 2015-12-09 | Tcl海外电子（惠州）有限公司 | Field frequency synchronous backlight control method, field frequency synchronous backlight control device and television set |
| CN106328092A (en) * | 2016-11-10 | 2017-01-11 | 武汉华星光电技术有限公司 | Mobile phone display drive IC and method of power consumption reduction |
| CN107369415A (en) * | 2016-05-11 | 2017-11-21 | 思博半导体股份有限公司 | Image communicating device |
| CN108510957A (en) * | 2018-05-18 | 2018-09-07 | 江西华兴信息产业有限公司 | A kind of energy saving LCD screen and luminance regulating method based on synchronous LED back light technology |
| CN109194941A (en) * | 2018-11-08 | 2019-01-11 | 四川长虹电器股份有限公司 | DLP projector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103260048A (en) * | 2013-04-07 | 2013-08-21 | 熊猫电子集团有限公司 | Method for improving energy efficiency index of liquid crystal display television |
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| CN105141862A (en) * | 2015-07-06 | 2015-12-09 | Tcl海外电子（惠州）有限公司 | Field frequency synchronous backlight control method, field frequency synchronous backlight control device and television set |
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| CN106328092B (en) * | 2016-11-10 | 2019-04-30 | 武汉华星光电技术有限公司 | Mobile phone display screen driving IC and the implementation method for reducing its power consumption |
| CN108510957A (en) * | 2018-05-18 | 2018-09-07 | 江西华兴信息产业有限公司 | A kind of energy saving LCD screen and luminance regulating method based on synchronous LED back light technology |
| CN109194941A (en) * | 2018-11-08 | 2019-01-11 | 四川长虹电器股份有限公司 | DLP projector |
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Application publication date: 20120418 |