CN100337179C - Method for turning off display backlight function automatically according to user's habit - Google Patents
Method for turning off display backlight function automatically according to user's habit Download PDFInfo
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- CN100337179C CN100337179C CNB2004100280920A CN200410028092A CN100337179C CN 100337179 C CN100337179 C CN 100337179C CN B2004100280920 A CNB2004100280920 A CN B2004100280920A CN 200410028092 A CN200410028092 A CN 200410028092A CN 100337179 C CN100337179 C CN 100337179C
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Abstract
The present invention relates to a method for the back light function of a liquid crystal display which can be automatically turned off according to a user's habit. The present invention uses a back light function driver for recording and analyzing a user's use habit which is used as a time basis for shutting the back light function next time.
Description
Technical field
The present invention relates to the power saving mode that a kind of display is closed automatically, particularly relate to a kind ofly, carry out the technology of closing the display backlight function automatically according to user custom.
Background technology
Along with the prosperity day by day of multimedia industry, mobile phone (mobile phone), digital camera (digitalcamera), digital camera (digital camera), notebook computer (notebook), desktop computer digitalized electron products such as (desktop) are constantly towards facility, greater functionality, direction more attractive in appearance develop more.Wherein, display can be described as of paramount importance output device in the said goods, and the various information in the product can be presented on the user at the moment by it.Former, (Cathode Ray Tube CRT) is called iconoscope again to cathode-ray tube (CRT), is the most important components of being responsible for demonstration in the display.Because of it has the good display quality superiority economic with it, dominating the market of display exclusively always.Yet if considered with the opinion of the saving energy of environmental protection and the availability in space, cathode-ray tube (CRT) can't respond in the face of the consumer demand of light, thin, short, little and low consumpting power or the like, also can't meet epoch trend.
Therefore, in recent years, the indicator screen of emerging electronic product is its main flow with LCD.LCD has that high image quality, space utilization efficient are good, low consumpting power, advantageous characteristic such as radiationless.Lcd technology is employed a kind of demonstration form in the digitized video technology, and is the most common on the notebook computer product.The principle of LCD design is exactly to utilize two materials with polarity in simple terms, injects the liquid crystal material among this.When electric current utilizes these two polar materials to pass liquid, can make on the correspondence position crystal binding and shield lights shows needed picture with this.In other words, whether the crystal in the LCD is like the shutter that is camera, with deciding light can pass through.Because liquid lens element itself there is no the characteristics of luminescence, so a backlight module (Back Light Module) need be provided below LCD usually.Provide panel of LCD required area source by the backlight module, make panel of LCD obtain enough brightness and contrast, reach the display effect of high image quality.The backlight module roughly is divided into two kinds of edge light type and full run-down types, wherein, the backlight module of edge light type need be passed through a light guide plate (Light Guide Plate), be used for line source is converted to the required area source of display liquid crystal panel, the backlight module of full run-down type then need not dispose light guide plate, just can directly provide liquid crystal panel required area source.
In colour liquid crystal display device, classify and to be divided into, two kinds of passive type driving (Passive Driven) and active driving (Active Driven) by the driving pattern of using.Take and use active driving method to make film transistor type (the Thin Film Transistor that has the high image quality characteristics, TFT) LCD is an example, its backlight module used up power consumption power accounted for 65% of total power consumption power, therefore, make the low consumption electrification of film transistor type LCD, the attenuating effect of backlight module power consumption needs to increase.That is to say that the power consumption of film transistor type LCD lowers, and be reduced to target with the power consumption of backlight module.
At present, using the electricity saving method on LCD is to adopt the mode that the backlight function of display is regularly closed.Set in advance set time value by the user, if any backlight function open event (for example: user's operation keyboard or touch screen) does not take place then close backlight function in this set time value.The shortcoming that this electricity saving method can cause has, because the options of the backlight function shut-in time that can set is fixed, the space that lacks flexibility causes the user to select to lack, and can't meet user's demand; Also because the relation that can't finely tune of gap between the options of shut-in time, so cause backlight function to close too soon or close too late, the user just need manually remove the switch backlight function, causes the operational inconvenience of user on the contrary.
Summary of the invention
The present invention proposes a kind of method of being accustomed to closing automatically the display backlight function according to the user.By backlight function driver record and analyze user's use habit, with this as the basis of time of closing backlight function next time.Study automatically goes to adjust the shut-in time of backlight function according to user's use habit.Not only increase the dirigibility of backlight function shut-in time, also having reduced the user needs manually operated inconvenience.The present invention reduces unnecessary power consumption, has increased the convenience of user's operation simultaneously.
The present invention proposes a kind of method of being accustomed to closing automatically the display backlight function according to the user.An at first default average opening time of backlight function of the method, a maximum reference value, and a minimum reference value.Then, according to an acquired time interval value that used backlight function last time, relatively used time interval value and the above-mentioned maximum reference value and the relation of minimum reference value of backlight function this last time.Its method is as follows:
When the time interval value that used backlight function above-mentioned last time greater than maximum reference value, or during less than minimum reference value, be an invalid data just using this last time the time interval value of backlight function to be used as;
2. when the time interval value that uses backlight function when above-mentioned last time is between maximum reference value and minimum reference value, be an accumulative total data just using this last time the time interval value of backlight function to be used as, and in this accumulative total data logging to tired note MSDS.According to the data of this accumulative total MSDS, go to change the average opening time of backlight function before at last, and as the basis of time of closing backlight function next time.
In a preferred embodiment of the present invention, the situation of using last time the time interval value of backlight function to be regarded as invalid data has two kinds, the one, the time interval value that used backlight function when this last time greater than the default average opening time of backlight function go to add one first reference time and the time; Be the time interval value during that used backlight function when this last time in addition less than minimum reference value.When any situation in the above both of these case takes place, used last time the time interval value of backlight function just to be considered as invalid data, and must neglect it and disregard.In addition, the situation of using last time the time interval value of backlight function to be regarded as the accumulative total data then has two kinds of different processing modes, if used this last time the time interval value of backlight function greater than minimum reference value, and during less than average opening time of default backlight function, used this last time the time interval value of backlight function just to be regarded as one and do not have change accumulative total data; In addition, if the time interval value that used backlight function this last time is greater than the default average opening time of backlight function, and less than the average opening time of this backlight function add first reference time that the front was carried and the time, used this last time the time interval value of backlight function just to be regarded as a change accumulative total data.Be not have change accumulative total data or all tired at last note data of change accumulative total data, all need record in the tired note MSDS.Wherein, do not have change accumulative total data and be exactly that the time interval value that directly will use backlight function last time is used as is an accumulative total data, need not do any change; If change accumulative total data, then need with used this last time the time interval value of backlight function add one second reference time and afterwards, be recorded to again in the accumulative total MSDS.
Then to should be mentioned that, change the average open-interval method of previously mentioned backlight function, an at first default standard deviation and one the 3rd reference time.The accumulative total data that then will be recorded in the accumulative total MSDS is done sums on average, obtains an arithmetic mean.Average opening time of backlight function at this time adds certain multiple of standard deviation with regard to the arithmetic mean that equals the accumulative total data, added the 3rd reference time and.At last, by front average opening time of backlight function of gained as calculated, extrapolate the time of closing backlight function again, carry out and close backlight function.
Description of drawings
Figure 1 shows that the implementation process flow diagram of a preferred embodiment of the present invention.
Figure 2 shows that the implementation process flow diagram of charging to tired note data of a preferred embodiment of the present invention.
Embodiment
The invention provides a kind of method of being accustomed to closing automatically the display backlight function according to the user.Be illustrated in figure 1 as the implementation process flow diagram of a preferred embodiment of the present invention.In the method, at first default an average opening time of backlight function, a maximum reference value and a minimum reference value; And obtain a time interval value (as step S103) that used backlight function last time.Then, relatively used the time interval value of backlight function and the mutual relationship of maximum reference value and minimum reference value (as step S105) last time.Next, then be divided into two kinds of situations, the time interval value that used backlight function when last time is greater than this maximum reference value, or less than two kinds of situations of this minimum reference value when one of them takes place, just will use last time the time interval value of backlight function to be considered as invalid data, not list in the accumulative total data (as step S107); Another kind of situation then is, the time interval value that used backlight function when last time is between this maximum reference value and this minimum reference value the time, just will use last time the time interval value of backlight function to be considered as is an accumulative total data (as step S109), and in this pen accumulative total data logging to tired note MSDS, be used for as changing the average open-interval of backlight function according to (as step S111).
Be considered as invalid data at the time interval value that used backlight function last time here, and some implementation details of using last time the time interval value of backlight function to be considered as the accumulative total data are illustrated.
Suppose:
Used the time interval value of backlight function: T last time
d
The average opening time of backlight function: T
Average
Minimum reference value: 5 seconds
Maximum reference value: T
Average+ 30 seconds
First reference time: 30 seconds
Second reference time: 5 seconds
The time interval value that used backlight function when last time greater than the average opening time of backlight function add first reference time and, or the time interval value that used backlight function last time then used the time interval value of backlight function need be regarded as invalid data (as step S107) when one of them takes place less than two kinds of situations of minimum reference value this last time.Can be expressed as follows simply:
If T
d＞T
Average+ 30 seconds or T
d＜5 seconds, T then
dDo not give record.
Wherein, T
Average+ 30 seconds i.e. maximum reference values among the embodiment for this reason.This maximum reference value be add the average opening time of backlight function first reference time and.Wherein, minimum reference value is set at 5 seconds.Though first reference time was set at 30 seconds in this embodiment; Minimum reference value is set at 5 seconds, but need not be as limit on actual embodiment.
Figure 2 shows that the implementation process flow diagram of charging to the accumulative total data of a preferred embodiment of the present invention.At first, the time interval value that will use backlight function last time with, the average opening time of maximum reference value and minimum reference value and backlight function is compared (as step S202) mutually.The time interval value that used backlight function when last time is greater than minimum reference value, and during less than average opening time of backlight function, then uses this last time the time interval value of backlight function need be regarded as one and do not have change accumulative total data (as step S204).Can simply be expressed as follows:
If T
Average＞T
d＞5s, then T
d=T
d
Wherein, T
d=T
dI.e. expression, this does not have change accumulative total data for using the time interval value of backlight function this last time, and need not to do any change.
The time interval value that used backlight function when last time is greater than the average opening time of backlight function, and less than maximum reference value, be to add for first reference time average opening time of backlight function during sum, the time interval value that then used backlight function this last time is a change accumulative total data (as step S206).Can simply be expressed as follows:
If T
Average+ 30s＞T
d＞T
Average, T then
d=T
d+ 5s
Wherein, T
d=T
d+ 5s represents that promptly this change accumulative total data goes to add the second reference time sum again for the time interval value that used backlight function this last time.Though second reference time was set at 5 seconds in this embodiment, need not be on actual embodiment as limit.No matter be that nothing change accumulative total data above-mentioned or change accumulative total data all need be regarded as the accumulative total data, be recorded in the tired note MSDS.
What then will describe is with regard to how utilizing the accumulative total data that adds up in the MSDS to go to change the average open-interval implementation detail of backlight function to be illustrated.
Suppose:
Standard deviation: S
t
The 3rd reference time: 3 seconds
Its method is to take out many tired note data earlier from the accumulative total MSDS, and these many tired note data are carried out arithmetic mean.Then the result with arithmetic mean adds two times of standard deviations, adds the result of the 3rd reference time, just draws the average open-interval value of backlight function.Can simply be expressed as follows:
T
Average=[(T
D1+ T
D2+ ... + T
29+ T
30)/30]+2S
t+ 3 seconds
Wherein, though the 3rd reference time was set at 3 seconds in this embodiment; Many accumulative total data settings are 30; The multiple of standard deviation is set at two times, but on actual embodiment, and need not be as limit.In addition,, extrapolate the time of closing backlight function, carry out the action that backlight function is closed according to the above-mentioned average opening time of the backlight function of trying to achieve.
Owing among the present invention, not only use and cast out insignificant invalid data, only choose outside the method for effectively tired note data, and further analyze, handle for effective accumulative total data.Also fully used statistical principle in the average opening time at the calculating backlight function.These effort all are in order to solve, and owing to the options of the backlight function shut-in time that can set is in the past fixed, the user selects to lack effectively power saving; The relation that gap between the options of shut-in time can't be finely tuned causes backlight function to close too soon or close too late, causes the user need manually go the problems such as inconvenience of switch backlight function on the contrary.The present invention proposes a kind of by backlight function driver record and analyze user's use habit, and study is according to user's use habit, automatically goes to adjust the method for the shut-in time of backlight function.The backlight function shut-in time can finely tune neatly, meets user's demand, and reducing the user needs manually operated inconvenience.On the other hand, also reduce unnecessary power consumption and reached the purpose of saving the energy.
Claims (4)
1. method of being accustomed to closing automatically the display backlight function according to the user is characterized in that this method comprises:
The default average opening time of a backlight function, a maximum reference value, and a minimum reference value; This maximal value be add the average opening time of backlight function first reference time and;
Obtain the time interval value that used backlight function a last time;
If detect used backlight function this last time time interval value greater than this maximum reference value, and less than one of two kinds of situations of this minimum reference value, then setting the time interval value that used backlight function this last time is invalid data;
If detect used backlight function this last time time interval value between this maximum reference value and this minimum reference value, then set the time interval value that used backlight function this last time and be an accumulative total data, and should add up data and charge to one and tire out and remember MSDS; The method of this accumulative total data comprises:
If detect used backlight function this last time time interval value greater than this minimum reference value, and less than the average opening time of this backlight function, then set the time interval value that used backlight function this last time and be one and do not have change accumulative total data;
The time interval value that used backlight function when this last time is greater than the average opening time of this backlight function, and add this first reference time sum less than the average opening time of this backlight function, then setting the time interval value that used backlight function this last time is a change accumulative total data;
This nothing change accumulative total data and this change accumulative total data are all charged to this tired note MSDS; And
Change the average opening time of this backlight function according to this accumulative total MSDS, this average open-interval method also comprises:
A default standard deviation, and one the 3rd reference time;
Obtain an arithmetic mean from this accumulative total MSDS;
Calculate this arithmetic mean and add one of this standard deviation multiple, add the result of the 3rd reference time, and this result is set at the average opening time of this backlight function; Simultaneously, according to the average opening time of this backlight function, obtain the time of closing backlight function.
2. the method for being accustomed to closing automatically the display backlight function according to the user as claimed in claim 1 is characterized in that: described nothing change accumulative total data was used the time interval value of backlight function for this last time.
3. the method for being accustomed to closing automatically the display backlight function according to the user as claimed in claim 1 is characterized in that: described change accumulative total data adds one second reference time sum for using the time interval value of backlight function this last time.
4. the method for being accustomed to closing automatically the display backlight function according to the user as claimed in claim 1 is characterized in that: this multiple that also comprises this standard deviation is two.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100280920A CN100337179C (en) | 2004-07-16 | 2004-07-16 | Method for turning off display backlight function automatically according to user's habit |
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| CNB2004100280920A CN100337179C (en) | 2004-07-16 | 2004-07-16 | Method for turning off display backlight function automatically according to user's habit |
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| CN100337179C true CN100337179C (en) | 2007-09-12 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100592357C (en) * | 2007-04-26 | 2010-02-24 | 海尔集团公司 | Process for startup and closing backlight lamp of liquid crystal screen and control system thereof |
| CN102841768B (en) * | 2011-06-24 | 2015-07-15 | 三星电子（中国）研发中心 | Screen delay regulation method of mobile terminal |
| CN102256010B (en) * | 2011-06-27 | 2014-04-09 | 惠州Tcl移动通信有限公司 | Mobile equipment and backlight control method thereof |
| CN102855848B (en) * | 2012-09-17 | 2015-03-11 | 济南微晶电子技术有限公司 | User habit based method and user habit based system for adaptive control of display screen backlight retention time |
| CN102917123B (en) * | 2012-09-27 | 2016-12-21 | 东莞宇龙通信科技有限公司 | Mobile terminal and the dormancy processing method for mobile terminal |
| CN103034319B (en) * | 2012-12-14 | 2015-11-25 | 华为终端有限公司 | A kind of the method for display and control, control device and terminal are carried out to terminal |
| CN104240646B (en) * | 2013-06-14 | 2016-08-17 | 昆达电脑科技(昆山)有限公司 | The automatic adapting method of wrist-watch backlight open time span |
| CN103631359A (en) * | 2013-11-15 | 2014-03-12 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105629710B (en) * | 2014-11-07 | 2018-05-04 | 昆达电脑科技(昆山)有限公司 | Automatically turn on the wrist-watch and its determination methods of backlight |
| CN106205069A (en) * | 2015-05-08 | 2016-12-07 | 中兴通讯股份有限公司 | Sitting based reminding method and device |
| TWI643093B (en) | 2017-03-08 | 2018-12-01 | 緯創資通股份有限公司 | Method, electronic device, and computer-readable recording medium for setting screen timeout time |
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| CN1722058A (en) | 2006-01-18 |
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