CN102348084A - Television system and method for reducing power consumption of the television without signal - Google Patents
Television system and method for reducing power consumption of the television without signal Download PDFInfo
- Publication number
- CN102348084A CN102348084A CN2010102406191A CN201010240619A CN102348084A CN 102348084 A CN102348084 A CN 102348084A CN 2010102406191 A CN2010102406191 A CN 2010102406191A CN 201010240619 A CN201010240619 A CN 201010240619A CN 102348084 A CN102348084 A CN 102348084A
- Authority
- CN
- China
- Prior art keywords
- backlight
- signal
- processing chip
- television system
- backlight drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The invention provides a television system. The system comprises: an image processing chip, a liquid crystal display (LCD) screen, a backlighting driving circuit and a backlight. The image processing chip is used to acquire video input and process the video input. The LCD screen is used to acquire a video signal from the image processing chip and display the video signal. The backlighting driving circuit generates a corresponding driving voltage according to a backlighting driving signal output by the image processing chip so as to drive the backlight. The image processing chip is also used to determine whether the obtained video input is effective. When the video input is not effective, a consumption reduction backlighting driving signal is sent so that the backlighting driving circuit reduces brightness of the backlight. By using the system and the method, under the condition of inputting no signal, the brightness of the backlight can be actively reduced so that energy saving and consumption reduction can be achieved and service life of the backlight can be prolonged.
Description
Technical field
The present invention relates to TV tech, the power consumption reduction technology when relating in particular to the television system no signal.
Background technology
In the practical work process of LCD TV; If input signal has not existed for a certain reason; Can get into holding state or shutdown automatically through certain delay time TV; Delay time was generally 10 to 15 minutes; Even can have the user freely to set, but in input signal was lost to this section delay time of TV automatic stand-by or shutdown, TV was in normal operating conditions; The all normal power consumption of its all elements can cause the waste of power consumption.
Present LCD TV is popularized in a large number, and backlight partly is that power consumption consumes maximum parts in the LCD TV, and power consumption how effectively to control this part has great importance.And the backlight regulation technology of broad research only relates in the process that has video frequency program to show at present; Be not applied to from be input to no signal standby or shutdown during this period of time; Thereby cause energy waste to a certain degree, also influence the useful life of backlight.
Summary of the invention
Method of reducing power consumption when the object of the present invention is to provide a kind of television system and no signal thereof, this section that arrives standby or shutdown in no signal adopts certain backlight control technology in ineffective time, its brightness is reduced, thereby play energy-saving and cost-reducing effect.
Technical scheme of the present invention is following:
A kind of television system; Comprise: picture processing chip; LCD screen; Backlight drive circuit and backlight; Said picture processing chip is used to obtain the video input and it is handled; Said LCD screen is used for obtaining vision signal and demonstration from picture processing chip; Said backlight drive circuit produces the said backlight of corresponding driving driven according to the backlight drive signal of said picture processing chip output; Said picture processing chip is used to also judge whether the input of its video that obtains is effective, imports at video and sends consumption reduction backlight drive signal when invalid and make backlight drive circuit reduce the brightness of backlight.
Described television system, wherein, said backlight drive circuit reduces the brightness of backlight through the pulsewidth of the driving voltage that reduces to export.
Described television system wherein, after said backlight drive circuit receives consumption reduction backlight drive signal, is reduced to a set point with the pulsewidth of the driving voltage of output.
Described television system, wherein, 30% of the pulsewidth of the pulsewidth set point of the said driving voltage driving voltage that to be said backlight drive circuit export before receiving consumption reduction backlight drive signal.
Described television system wherein, after said backlight drive circuit receives consumption reduction backlight drive signal, reduces the pulsewidth of the driving voltage of output within a certain period of time step by step.
Method of reducing power consumption during a kind of television system no signal may further comprise the steps:
A. judge whether the video input is effective, is then to get into step B, otherwise get into step C;
B. continue to show;
C. adjust backlight illumination.
Described method of reducing power consumption, wherein, said step C comprises step: C0, judge whether that needs adjustment is backlight, be then to advance figure step C1, otherwise get into step C2;
C1, reduction backlight illumination, delay time back shutdown then or entering holding state;
Back shutdown then of C2, delay time or entering holding state.
Described method of reducing power consumption, wherein, the adjustment backlight illumination specifically is to reduce backlight illumination in said step C.
Described method of reducing power consumption, wherein, in said step C, reducing backlight illumination specifically is in delay time, progressively to reduce backlight illumination according to preset regulation.
Described method of reducing power consumption wherein, in said step C, reduces backlight illumination and specifically is that backlight illumination is reduced to video input 30% before invalid immediately.
Method of reducing power consumption when above-mentioned television system and no signal thereof under the state of no signal input, initiatively reduces the brightness of backlight, reaches energy-conservation, lowers consumption, improves the purpose in backlight life-span.
Description of drawings
Fig. 1 is the block diagram of television system better embodiment of the present invention;
The flow chart of Fig. 2 method of reducing power consumption better embodiment during for television system no signal of the present invention.
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.
Main purpose of the present invention is to make TV under the state of no signal, initiatively reduces the brightness of backlight, reaches energy-conservation, lowers consumption, improves the purpose in backlight life-span.
Present TV all has signal source input signal detection function; For example we have selected certain video port as the video playback source; In case this signal is undesired; The picture processing chip of TV just can detect input signal and lose efficacy; If there is not other useful signal source to supply to show that will show the sign of a no signal this moment on screen.The backlight illumination of LCD TV also can be controlled simultaneously, and this control signal just comes from picture processing chip.Usually, the external video input signal is through behind the picture processing chip, and vision signal gets into display screen, and exportable backlight illumination control signal is controlled backlight source driving circuit simultaneously, and then the driving voltage of control backlight, thus the control back light source brightness.
Implementation method of the present invention is exactly; In the software of picture processing chip, insert one section program; After program detects the Signal Fail of input picture process chip, just can change the backlight drive signal of output, the control backlight drive circuit is realized the control of back light source brightness.
With reference to figure 1; Television system provided by the invention comprises: picture processing chip 12; LCD screen 14; Backlight drive circuit 16 and backlight 18; Said picture processing chip 12 is used to obtain the video input and it is handled; Said LCD screen 14 is used for obtaining vision signal and demonstration from picture processing chip 12; Said backlight drive circuit 16 produces the said backlight 18 of corresponding driving driven according to the backlight drive signal of said picture processing chip output; Said picture processing chip 12 is used to also judge whether its video that obtains input is effective; Import at video and to send the pulsewidth that consumption reduction backlight drive signal makes the driving voltage that backlight drive circuit 16 reduces to export when invalid, thereby reduce the brightness of backlight 18.
With reference to figure 2, method of reducing power consumption during television system no signal provided by the invention comprises step:
S1, judge that whether video input is effective, effectively then gets into step S2, the invalid step S3 that then gets into;
S2, do not change current state, continue to show;
S3, judge whether to need adjustment backlight, be then to advance figure step S4, otherwise get into step S5;
S4, reduction backlight illumination, back shutdown then or entering holding state;
Shutdown or entering holding state behind S5, the delay certain hour.
In practical application, said step S3 and S5 also can save, and judge that when execution in step S1 the invalid back of video input directly gets into step S4, and the reduction backlight illumination is until shutdown then or get into holding state.
In above-mentioned steps S4; Because TV will pass through certain hour shutdown or get into holding state automatically after invalid from detecting input signal; Can be at this moment according to the regulation that sets in advance; Progressively reduce the pulsewidth of the driving voltage of backlight drive circuit generation; Back light source brightness is slowly reduced; Until closing; For example this delay time is 10 minutes; Then can set 1 minute pulsewidth of every mistake and reduce by 10% backlight driving voltage; Certainly; After the user adjusts this delay time; Picture processing chip can recomputate the blanking time of reducing brightness according to the regulation that is provided with; For example the time was made as 15 minutes, and 1.5 minutes pulsewidths with backlight driving voltage of then every mistake reduce by 10%.In addition; As another embodiment of the present invention; After picture processing chip judges that the video input is invalid; Also can reduce the pulsewidth of backlight driving voltage immediately; Brightness is reduced to a certain degree; Guaranteeing that relevant information or special picture can be identified get final product, for example disposablely makes brightness drop to video to import 30% when effective, with the identification of assurance relevant information.
Should be understood that, concerning those of ordinary skills, can improve according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of accompanying claims of the present invention.
Claims (10)
1. television system; Comprise: picture processing chip; LCD screen; Backlight drive circuit and backlight; Said picture processing chip is used to obtain the video input and it is handled; Said LCD screen is used for obtaining vision signal and demonstration from picture processing chip; Said backlight drive circuit produces the said backlight of corresponding driving driven according to the backlight drive signal of said picture processing chip output; It is characterized in that; Said picture processing chip is used to also judge whether the input of its video that obtains is effective, imports at video and sends consumption reduction backlight drive signal when invalid and make backlight drive circuit reduce the brightness of backlight.
2. television system according to claim 1 is characterized in that: said backlight drive circuit reduces the brightness of backlight through the pulsewidth of the driving voltage that reduces to export.
3. television system according to claim 2 is characterized in that: after said backlight drive circuit receives consumption reduction backlight drive signal, the pulsewidth of the driving voltage of output is reduced to a set point.
4. television system according to claim 3 is characterized in that: 30% of the pulsewidth of the pulsewidth set point of the said driving voltage driving voltage that to be said backlight drive circuit export before receiving consumption reduction backlight drive signal.
5. television system according to claim 2 is characterized in that: after said backlight drive circuit receives consumption reduction backlight drive signal, reduce the pulsewidth of the driving voltage of output within a certain period of time step by step.
6. method of reducing power consumption during a television system no signal may further comprise the steps:
A. judge whether the video input is effective, is then to get into step B, otherwise get into step C;
B. continue to show;
C. adjust backlight illumination.
7. method of reducing power consumption according to claim 6 is characterized in that: said step C comprises step: C0, judge whether that needs adjustment is backlight, be then to advance figure step C1, otherwise get into step C2;
C1, reduction backlight illumination, delay time back shutdown then or entering holding state;
Back shutdown then of C2, delay time or entering holding state.
8. method of reducing power consumption according to claim 6 is characterized in that: the adjustment backlight illumination specifically is to reduce backlight illumination in said step C.
9. according to claim 7 or 8 described method of reducing power consumption, it is characterized in that: in said step C, reducing backlight illumination specifically is in delay time, progressively to reduce backlight illumination according to preset regulation.
10. according to claim 7 or 8 described method of reducing power consumption, it is characterized in that: in said step C, reduce backlight illumination and specifically be that backlight illumination is reduced to video input 30% before invalid immediately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102406191A CN102348084A (en) | 2010-07-29 | 2010-07-29 | Television system and method for reducing power consumption of the television without signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102406191A CN102348084A (en) | 2010-07-29 | 2010-07-29 | Television system and method for reducing power consumption of the television without signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102348084A true CN102348084A (en) | 2012-02-08 |
Family
ID=45546321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102406191A Pending CN102348084A (en) | 2010-07-29 | 2010-07-29 | Television system and method for reducing power consumption of the television without signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102348084A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957886A (en) * | 2012-11-13 | 2013-03-06 | 广东长虹电子有限公司 | System and method for controlling television set backlight |
| CN103634642A (en) * | 2013-11-29 | 2014-03-12 | 乐视致新电子科技（天津）有限公司 | Method and device for reducing power consumption |
| CN104898409A (en) * | 2015-05-28 | 2015-09-09 | 惠州Tcl移动通信有限公司 | Method for reducing power consumption of smart watch and smart watch |
| CN107093409A (en) * | 2017-05-17 | 2017-08-25 | 南京巨鲨显示科技有限公司 | A kind of intelligence breath screen device and method for medical display |
| CN108831407A (en) * | 2018-06-26 | 2018-11-16 | 苏州佳世达电通有限公司 | Display controller and its power-economizing method and display device |
| CN113619592A (en) * | 2021-08-13 | 2021-11-09 | 斑马网络技术有限公司 | Method, equipment and system for adjusting playing state of vehicle multimedia equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1791108A1 (en) * | 2005-11-29 | 2007-05-30 | Hitachi Displays, Ltd. | Organic electroluminescent display device |
| CN101179891A (en) * | 2007-11-01 | 2008-05-14 | 京东方科技集团股份有限公司 | LED back light source brightness control device |
| CN101377901A (en) * | 2007-08-31 | 2009-03-04 | 北京京东方光电科技有限公司 | Method for driving backlight source of liquid crystal display apparatus and backlight source |
| CN101383922A (en) * | 2008-09-09 | 2009-03-11 | 南京Lg新港显示有限公司 | Method for automatically control opening/closing of television by external signal |
| CN101466002A (en) * | 2007-12-21 | 2009-06-24 | 康佳集团股份有限公司 | Standby and start-up method controlled by input signal |
-
2010
- 2010-07-29 CN CN2010102406191A patent/CN102348084A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1791108A1 (en) * | 2005-11-29 | 2007-05-30 | Hitachi Displays, Ltd. | Organic electroluminescent display device |
| CN101377901A (en) * | 2007-08-31 | 2009-03-04 | 北京京东方光电科技有限公司 | Method for driving backlight source of liquid crystal display apparatus and backlight source |
| CN101179891A (en) * | 2007-11-01 | 2008-05-14 | 京东方科技集团股份有限公司 | LED back light source brightness control device |
| CN101466002A (en) * | 2007-12-21 | 2009-06-24 | 康佳集团股份有限公司 | Standby and start-up method controlled by input signal |
| CN101383922A (en) * | 2008-09-09 | 2009-03-11 | 南京Lg新港显示有限公司 | Method for automatically control opening/closing of television by external signal |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957886A (en) * | 2012-11-13 | 2013-03-06 | 广东长虹电子有限公司 | System and method for controlling television set backlight |
| CN103634642A (en) * | 2013-11-29 | 2014-03-12 | 乐视致新电子科技（天津）有限公司 | Method and device for reducing power consumption |
| CN104898409A (en) * | 2015-05-28 | 2015-09-09 | 惠州Tcl移动通信有限公司 | Method for reducing power consumption of smart watch and smart watch |
| CN104898409B (en) * | 2015-05-28 | 2018-04-10 | 惠州Tcl移动通信有限公司 | A kind of intelligent watch reduces the method and intelligent watch of power consumption |
| CN107093409A (en) * | 2017-05-17 | 2017-08-25 | 南京巨鲨显示科技有限公司 | A kind of intelligence breath screen device and method for medical display |
| CN108831407A (en) * | 2018-06-26 | 2018-11-16 | 苏州佳世达电通有限公司 | Display controller and its power-economizing method and display device |
| CN113619592A (en) * | 2021-08-13 | 2021-11-09 | 斑马网络技术有限公司 | Method, equipment and system for adjusting playing state of vehicle multimedia equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102348084A (en) | Television system and method for reducing power consumption of the television without signal | |
| US9711106B1 (en) | Display method and display device | |
| KR101744927B1 (en) | A method for controling a monitor having the most power saving function during the sleep mode | |
| CN100362560C (en) | TV set LCD time sequence controlling method during open | |
| CN104123916A (en) | Backlight control module, backlight control method and liquid crystal display device | |
| CN102957886A (en) | System and method for controlling television set backlight | |
| CN104078016A (en) | Time sequence control method, time sequence controller and display device | |
| US9922606B2 (en) | Display driving circuit and display device | |
| US20120306941A1 (en) | Method and Device for Controlling Signal-Processing of the Backlight Module of the Display Device | |
| CN101751877B (en) | LCD TV energy saving device and method | |
| CN102004178B (en) | A kind of electric power consumption display system of electric equipment and its implementation | |
| CN104347026A (en) | Display driving method with dynamic adjustment output and display device thereof | |
| CN105376645A (en) | Set-top box and power consumption reduction method | |
| CN203014994U (en) | System for controlling television set backlight | |
| CN102903337A (en) | Liquid crystal display as well as control method and device thereof | |
| TWI521336B (en) | Display device | |
| US20160275882A1 (en) | Display control system and method, and display device | |
| CN105070258A (en) | Control system and method of dynamic image update rate of liquid crystal display | |
| TWI499292B (en) | Image processing system and image processing method | |
| CN102682718B (en) | Backlight module of liquid crystal display screen and control method thereof | |
| CN101996589A (en) | Method and device for reducing power consumption of source driving circuit and time schedule controller | |
| CN103971658A (en) | Display driving device and display driving method | |
| CN104537969A (en) | Method and device for recovering performance of OLED | |
| CN102572592A (en) | Set-top box standby control method based on system dynamic clock management | |
| CN109917574B (en) | Method and system for eliminating residual shadow during startup and shutdown and liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120208 |