CN101364383B - Portable display device and dynamic energy saving method - Google Patents
Portable display device and dynamic energy saving method Download PDFInfo
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- CN101364383B CN101364383B CN200710075550XA CN200710075550A CN101364383B CN 101364383 B CN101364383 B CN 101364383B CN 200710075550X A CN200710075550X A CN 200710075550XA CN 200710075550 A CN200710075550 A CN 200710075550A CN 101364383 B CN101364383 B CN 101364383B
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Abstract
The invention discloses a portable display device and a dynamic energy-saving method thereof. The display device comprises a display panel, a battery supply for supplying power to the display panel, an adaptive controller for outputting signals to control the display panel, a video analyzer for providing a first input signal for the adaptive controller, and a remaining displaying time estimator, wherein, the remaining displaying time estimator determines the remaining displaying time of the portable display device and provides a second input signal to the adaptive controller according to the remaining displaying time to control the image display on the display panel. The technical proposal can dynamically adjust the electricity-saving mode of the portable display device, so as to save more electric power during variation of the battery power.
Description
Technical field
The present invention relates to a kind of power-saving technology, particularly a kind of dynamic energy saving method that is used for portable display apparatus.
Background technology
Usually, portable liquid crystal shows that (LCD) device carries out work by battery, so its working time is limited.Therefore, under given battery capacity for the LCD device provides the longest service time, the electric power of saving battery just seems particularly important.Simultaneously, the saving of battery electric power makes that also utilize less battery capacity to satisfy given LCD device becomes possibility service time.
The LCD device generally is to adopt back light unit that light is provided, to watch image on display panel.But, be to use the consumption of back light unit about half of LCD device power consumption.Therefore, most of LCD device can use various technology to reduce the energy consumption of back light unit.For example, kneetop computer can reduce the output (being brightness) of back light unit automatically behind one section special time static.In addition, devices such as kneetop computer and LCD TV also can be when it watches place light intensity on every side low, the brightness of corresponding reduction back light unit.
Proposed the service time that many different technology prolong portable LCD device in the prior art, most of technology is devoted to reduce the energy consumption of back light unit.These technology are revised the transport property of video path when reducing backlight unit brightness, reduce with the image quality reduction with shown image on the display panel, as brightness of image and picture contrast etc. as far as possible." provide adjust brightness simultaneously and contrast minimizes TFT (thin film transistor (TFT)) type LCD backlight of display device energy consumption " (European design, robotization and test journal of being shown is provided in W-C. journey and M. training a kind of technology wherein, in February, 2005 number, 252 to 259 pages) be described in detail in the literary composition.
But the technology of the portable LCD device of aforementioned various prolongations service time all reckons without when the battery charge amount reduces, and saves more electric power.Therefore, be necessary to provide the method for the portable LCD device of a kind of dynamic saving electric power.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of power-saving technology, particularly a kind of dynamic energy saving method that is used for portable display apparatus.
A kind of portable display apparatus and dynamic energy saving method thereof, this display device comprises display panel, battery supply for the display panel power supply, output signal is with the adaptation controller of control display panel, video analyzer and a residue demonstration time estimator and a residue Pgmtime estimator of first input signal are provided for this adaptation controller, wherein, this residue demonstration time estimator determines that the residue of this portable display apparatus shows the time, provide second input signal to show with the image of adjusting on the display panel to adaptation controller according to this residue demonstration time, this residue Pgmtime estimator is determined the residue playing programs time of record or broadcast program and is controlled described adaptation controller to adjust the image demonstration on the described display panel according to the described residue playing programs time.
Technical scheme of the present invention can the dynamic adjustments portable display apparatus battery saving mode, when battery electric quantity changes, save more electric power.
Description of drawings
Fig. 1 is the system module figure of portable display apparatus preferred embodiment of the present invention.
Fig. 2 is the system module figure of another embodiment of portable display apparatus of the present invention.
Embodiment
See also Fig. 1, be the module map of its control system of portable display apparatus of the present invention.In Fig. 1, control system 100 utilizes the estimation device to judge the excess time of watching image on display panel (figure does not show), and it comprises that backlight controller 110, video processor 120, video analyzer 130 and residue show time estimation device 140.Backlight controller 110 is connected to video analyzer 130 with video processor 120 by adaptation controller 150 and shows time estimation device 140 with residue.Wherein, adaptation controller 150 receives from the vision signal of video analyzer 130 and from remaining the input signal that shows time estimation device 140, adjusting the output of back light unit (figure does not show) corresponding to brightness of image, and corresponding to the output of the display panel of image quality.Above-mentioned back light unit is connected to backlight controller 110, and display panel is connected to video processor 120.For example, video analyzer 130 generates the brightness histogram and determines a numerical value, and satisfies a specific image quality according to the output of this numerical value minimizing back light unit.Therefore, the adjustment of back light unit and display panel is based on the estimations residue demonstration times that residue shows that time estimation device 140 is determined and carries out.Thereby, if when a sports cast is just being play on display panel or is being replayed from program recording, and determine that the power supply that is supplied to this portable display device will exhaust, then portable display device will reduce its brightness of image and/or image quality can from first to last be watched this sports cast to guarantee the user.
In Fig. 1, residue shows that time estimation device 140 uses various parameters to determine the numerical value of the excess time of display image on display panel, the current drain of the battery that these parameters comprise the cell voltage of the battery (figure does not show) that is used to portable display panel/device power supply, power for portable display panel/device and/or the environment temperature situation of battery.In addition, residue shows that time estimation device 140 can also use and relevant various parameters of service time, battery life and/or battery capacity after battery charged fully in the last time.
When display device is by AC power or another stabilized power source, as power supplies such as automobile adapters, rather than when battery-powered, control system 100 is returned mode of operation, makes the image of the quality that the running parameter of display device is set to provide higher.Because AC power or stabilized power source are actually unlimited to display device, so video analyzer 130 is connected directly to backlight controller 110 and video processor 120.Do not need to determine the various parameters of battery this moment, residue demonstration time estimation device 140 is under an embargo or is set to bypass.
See also Fig. 2, be the module map of the control system of another embodiment of portable display apparatus of the present invention.In Fig. 2, control system 200 utilizes the estimation device to judge the excess time of watching image on display panel (figure does not show), and it comprises that backlight controller 210, video processor 220, video analyzer 230, residue show time estimation device 240 and residue Pgmtime estimation device 260.Backlight controller 210 is connected to video analyzer 230, residue demonstration time estimation device 240 and residue Pgmtime estimation device 260 with video processor 220 by adaptation controller 250.Wherein, the input signal of device 260 is estimated in adaptation controller 250 receptions from the vision signal of video analyzer 230, from residue demonstration time estimation device 240 and residue Pgmtime, adjusting the output of back light unit (figure does not show) corresponding to brightness of image, and corresponding to the output of the display panel of image quality.Above-mentioned back light unit is connected to backlight controller 210, and display panel is connected to video processor 220.For example, video analyzer 230 generates the brightness histogram and determines a numerical value, and satisfies a specific image quality according to the output of this numerical value minimizing back light unit.Therefore, the adjustment of back light unit display panel is based on to remain and shows that time estimation device 240 estimations residue demonstration times of determining and the program that remains record on the Pgmtimes estimation device 260 carry out excess time.Thereby, if when a sports cast is just being play on display panel or is being replayed from program recording, and determine that the power supply that is supplied to this portable display device will exhaust, then portable display device will reduce its brightness of image and/or image quality can from first to last be watched this sports cast to guarantee the user.
In Fig. 2, residue shows that time estimation device 240 uses various parameters to determine the numerical value of the excess time of display image on display panel, the current drain of the battery that these parameters comprise the cell voltage of the battery (figure does not show) that is used to portable display panel/device power supply, power for portable display panel/device and/or the environment temperature situation of battery.In addition, residue shows that time estimation device 240 can also use and relevant various parameters of service time, battery life and/or battery capacity after battery charged fully in the last time.
And residue Pgmtime estimation device 260 also uses various parameters to determine the numerical value of the excess time of record or broadcast program.For example, residue Pgmtime estimation device 260 is judged the program that is stored on the DVD and is also had 35 minutes apart from finishing (or a certain DVD of distance go up foregone conclusion spare, as making group, deletion fragment, propaganda fragment etc.).Again for example, the program navigating information of residue Pgmtime estimation device 260 by transmitting in broadcasting judges that broadcast program (comprising radio broadcasting, the electrophone of directly importing or satellite television etc.) the off-the-air time that distance is subscribed also has 20 minutes.In aforementioned circumstances, adaptation controller 250 receives the input that shows time estimation device 240 and residue Pgmtime estimation device 260 from residue, control the rate of attacking backlight easily and reduce system's (figure does not show), or directly receive input from backlight controller 210, so that program record or broadcasting can be finished broadcast by the output that reduces back light unit.Certainly, also can control other running parameters of this display device, as volume, color, tone and contrast etc.But because back light unit and video processor have consumed the major part of input electric power separately, so do not specifically describe other control of operating parameters in embodiments of the present invention.
In addition, the control system 100 and 200 among Fig. 1 and Fig. 2 also is shown to the user with the more function operation when this display device work.For example, shown feature operation comprises that residue shows the estimation residue demonstration time that time estimation device 140,240 is determined, the estimation residue Pgmtime that residue Pgmtime estimation device 260 is determined etc.These feature operations can be expressed as actual time or corresponding percentage numerical value.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. portable display apparatus, described device comprises:
Display panel;
Battery supply for described display panel power supply;
Output signal is to control the adaptation controller of described display panel, described adaptation controller is adjusted brightness of image and image quality wherein one, described brightness of image is controlled by backlight controller, described image quality is controlled by video processor, and described image quality comprises color, tone and contrast;
The video analyzer of first input signal is provided for described adaptation controller;
It is characterized in that described device also comprises,
One residue demonstration time estimator, described residue demonstration time estimator determines that the residue of described portable display apparatus shows the time, extremely described adaptation controller is to adjust the image demonstration on the described display panel to provide second input signal according to the described residue demonstration time, and the described residue demonstration time is to determine according to one in the following parameter: the environment temperature of the voltage of described battery supply, the current drain of described battery supply and described battery supply;
One residue Pgmtime estimator, described residue Pgmtime estimator are determined the residue playing programs time of record or broadcast program and control described adaptation controller according to the described residue playing programs time to show with the image of adjusting on the described display panel.
2. portable display apparatus, described device comprises:
Display panel;
Battery supply for described display panel power supply;
Output signal is to control the adaptation controller of described display panel, described adaptation controller is adjusted brightness of image and image quality wherein one, described brightness of image is controlled by backlight controller, described image quality is controlled by video processor, and described image quality comprises color, tone and contrast;
The video analyzer of first input signal is provided for described adaptation controller;
It is characterized in that described device also comprises,
One residue demonstration time estimator, described residue demonstration time estimator determines that the residue of described portable display apparatus shows the time, extremely described adaptation controller is to adjust the image demonstration on the described display panel to provide second input signal according to the described residue demonstration time, and the described residue demonstration time is to determine according to one in the following parameter: the service time after described battery supply charged fully in the last time, the life-span of described battery supply and the capacity of described battery supply;
One residue Pgmtime estimator, described residue Pgmtime estimator are determined the residue playing programs time of record or broadcast program and control described adaptation controller according to the described residue playing programs time to show with the image of adjusting on the described display panel.
3. the dynamic energy saving method of a portable display apparatus said method comprising the steps of:
By battery supply is the image of the display panel power supply of described portable display apparatus with display video programs;
The residue of judging described portable display apparatus according to described battery supply shows the time, and the described residue demonstration time is to determine according to one in the following parameter: the environment temperature of the voltage of described battery supply, the current drain of described battery supply and described battery supply;
Adjust display image on the described display panel according to the described residue demonstration time;
Determine the residue Pgmtime of described video frequency program, the image of adjusting on the described display panel according to described residue Pgmtime shows, the image of adjusting on the described display panel shows wherein one that comprises adjustment brightness of image and image quality, and described image quality comprises color, tone and contrast.
4. the dynamic energy saving method of a portable display apparatus said method comprising the steps of:
By battery supply is the image of the display panel power supply of described portable display apparatus with display video programs;
The residue of judging described portable display apparatus according to described battery supply shows the time, and the described residue demonstration time is to determine according to one in the following parameter: the service time after described battery supply charged fully in the last time, the life-span of described battery supply and the capacity of described battery supply;
Adjust display image on the described display panel according to the described residue demonstration time;
Determine the residue Pgmtime of described video frequency program, the image of adjusting on the described display panel according to described residue Pgmtime shows, the image of adjusting on the described display panel shows wherein one that comprises adjustment brightness of image and image quality, and described image quality comprises color, tone and contrast.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710075550XA CN101364383B (en) | 2007-08-08 | 2007-08-08 | Portable display device and dynamic energy saving method |
| EP08104742A EP2019353A3 (en) | 2007-07-13 | 2008-07-14 | LCD device power saving system and method of reducing power consumption of LCD device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710075550XA CN101364383B (en) | 2007-08-08 | 2007-08-08 | Portable display device and dynamic energy saving method |
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| CN101364383A CN101364383A (en) | 2009-02-11 |
| CN101364383B true CN101364383B (en) | 2010-11-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101877745B (en) * | 2010-06-30 | 2014-04-09 | 中兴通讯股份有限公司 | Power saving system and method for mobile terminal |
| CN103091637B (en) * | 2013-01-09 | 2015-10-28 | 博科能源系统(深圳)有限公司 | The battery electric quantity liquid crystal display device of accumulator system |
| DE112014007054T5 (en) * | 2014-11-06 | 2017-07-06 | Olympus Corporation | Observation device and endoscope system |
| CN105869605A (en) * | 2015-12-09 | 2016-08-17 | 乐视网信息技术（北京）股份有限公司 | Display screen brightness control method and device |
| CN105676490B (en) * | 2016-01-07 | 2019-01-18 | 京东方科技集团股份有限公司 | The repair system and method for CABC module |
| CN113961060B (en) * | 2020-07-21 | 2023-07-25 | 宏碁股份有限公司 | Electronic device and electric quantity management method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100678078B1 (en) * | 2006-03-28 | 2007-02-02 | 삼성전자주식회사 | Method and apparatus for driving low power of mobile communication terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100678078B1 (en) * | 2006-03-28 | 2007-02-02 | 삼성전자주식회사 | Method and apparatus for driving low power of mobile communication terminal |
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