CN103401970A - Method and system for adjusting display screen backlight and mobile terminal - Google Patents
Method and system for adjusting display screen backlight and mobile terminal Download PDFInfo
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- CN103401970A CN103401970A CN2013103118212A CN201310311821A CN103401970A CN 103401970 A CN103401970 A CN 103401970A CN 2013103118212 A CN2013103118212 A CN 2013103118212A CN 201310311821 A CN201310311821 A CN 201310311821A CN 103401970 A CN103401970 A CN 103401970A
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Abstract
The invention discloses a method and a system for adjusting display screen backlight and a mobile terminal. The method comprises the following steps that when a display system receives a screen lightening request, the current ambient light intensity is collected by a photo sensor, and whether the current ambient light intensity is the lowest intensity level or not is judged; if so, the backlight brightness of a display screen is set to the lowest brightness level, the backlight of the display screen is lighted up in a level-to-level manner until the backlight brightness of the display screen reaches the lowest brightness level; and if not, the backlight brightness required by the display screen is set according to the current ambient light intensity, and the backlight of the display screen is directly lighted up and set to the backlight brightness required by the current ambient light intensity. When the ambient light intensity is lower, the method and the system can realize that the backlight of the display screen is lighted up in a level-to-level manner, the eyes of a user can slowly adapt to the backlight brightness of the display screen, and the problems that the user suddenly sees the bright display screen in a dark environment to result in dazzling and uncomforting of eyes are avoided. The use experience of the user is optimized.
Description
Technical field
The present invention relates to the mobile communication technology field; Be specifically related to a kind of method, system and mobile terminal of regulating display backlight.
Background technology
In prior art, mobile terminal, by the application optical sensor, is realized the backlight illumination grade of intelligence adjusting display screen.Described optical sensor can perception ambient light situation, and informs the automatic adjusting backlight luminance grade of process chip, thereby reduces the power consumption of product, extends to greatest extent the operating time of battery.When ambient light intensity was weak, lower grade of backlight illumination, and when ambient light intensity was stronger, higher grade of backlight illumination.Gather current ambient light intensity by optical sensor, and carry out the backlight illumination grade of intelligent adjusting mobile terminal display screen according to ambient light intensity, can reach and make the user read the purpose of soft, not dazzling and power saving.
But existing mobile terminal is in the environment of dark, and during the request of response bright screen, direct bright screen, directly light the backlight of display screen to required brightness often.And people's eyes are adapting under dark surrounds, if the unexpected object of contact light, can be very inadaptable, very dazzling.Such as in routine use mobile phone process; often can run into following situation; for example when the late into the night; mobile phone is sent a telegram here suddenly; while perhaps carrying out note, mobile phone display screen is waken up and direct bright screen, if we go to check at once; will think that mobile phone is dazzling especially, cause user's experience poor.
Summary of the invention
The objective of the invention is in order to solve above-mentioned defect of the prior art, a kind of method, system and mobile terminal of regulating display backlight is provided, solved under the lower condition of ambient light intensity, human eye can not adapt to the problem that the display screen of unexpected bright screen presents at once.
Purpose of the present invention can reach by taking following technical scheme:
A kind of method of regulating display backlight is provided, and the method comprises the following steps:
S1, when display system receives the bright screen request, start optical sensor;
S2, by optical sensor, gather current ambient light intensity, the ambient light intensity that collects is reported to application layer, and judges whether current ambient light intensity is the minimum intensity grade;
If the current ambient light intensity of S3 is the minimum intensity grade, the backlight illumination of application layer set and display screen is the minimum brightness grade, the request of response bright screen, and classification lights the backlight of display screen, until the backlight illumination of display screen reaches the minimum brightness grade;
If the current ambient light intensity of S4 is greater than the minimum intensity grade, application layer arranges the required backlight illumination of display screen according to current ambient light intensity, the request of response bright screen, and directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen.
As a kind of preferred version, described method also comprises:
S5, in display system, receive and put out when request screen, whether judge current ambient light intensity less than the lowest class, if not, extinguish display screen, if enter step S6;
S6, extinguish display screen, and start simultaneously timer;
S7, when display system receives the bright screen request again, timer stops timing;
S8, judge that whether timing time surpasses set point, respond if not the bright screen request, directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen; If enter step S2.
, as a kind of preferred version, also comprised before step S1:
Set in advance the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to a plurality of little grade brightness that increase progressively in advance, and the time interval between adjacent two little grade brightness is set.
, as a kind of preferred version, also comprised before step S1:
Set in advance the set point of timer.
As a kind of preferred version, the detailed process backlight that display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness simultaneously with the backlight lightening of display screen, then the backlight illumination of described display screen increases progressively successively step by step from minimum little grade brightness, until the backlight illumination of display screen reaches the minimum brightness grade, and stop the time interval of setting between adjacent two little grade brightness.
As a kind of preferred version, the backlight illumination of described minimum brightness grade is set to 5 little grade brightness.
As a kind of preferred version, the time interval between described adjacent two little grade brightness is 2 seconds-8 seconds.
A kind of system of method of described adjusting display backlight, this system comprises:
The display screen detecting unit,, for detection of the bright screen request of display screen, perhaps put out the screen request;
Optical sensor, when described display screen detecting unit detects the bright screen request, start automatically, gathers current ambient light intensity;
The first judging unit, be used for judging whether described optical sensor collects current ambient light intensity is the minimum intensity grade;
The backlight illumination regulon, when the current ambient light intensity of described the first judgment unit judges is the minimum intensity grade, the backlight illumination of set and display screen is the minimum brightness grade, and classification lights the backlight of display screen, until the backlight illumination of display screen reaches the minimum brightness grade; When the current ambient light intensity of described the first judgment unit judges during greater than the minimum intensity grade, collect current ambient light intensity according to optical sensor the required backlight illumination of display screen is set, and directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen.
As a kind of preferred version, this system also comprises:
Timer, be used for automatically starting when the environment that ambient light intensity is the minimum intensity grade extinguishes display, detects to put out when screen is asked at described display screen detecting unit automatically to stop, and calculates and put out the time interval of screen to bright screen;
The second judging unit, be used for judging that whether described timer timing time is greater than set point;
Described backlight illumination regulon also is used for: when the timing time of the second judgment unit judges timer, during less than set point, directly light the backlight illumination of display screen to the required backlight illumination of current environment luminous intensity; , according to current ambient light intensity, regulate the backlight of display screen regulated accordingly during greater than set point when the timing time of the second judgment unit judges timer.
As a kind of preferred version, this system also comprises:
Setting unit, for the corresponding relation of setting and storage environment luminous intensity and backlight illumination grade; The backlight illumination that arranges and store the minimum brightness grade is a plurality of little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With the set point that arranges and store timer.
A kind of mobile terminal that can regulate display backlight is provided, and this mobile terminal comprises the system of above-mentioned adjusting display backlight.
The present invention has following beneficial effect with respect to prior art:
beneficial effect of the present invention is, backlight illumination by the minimum brightness grade is set to a plurality of little grade brightness that increase progressively, before the request of response bright screen, if judgement current environment luminous intensity is while being in the minimum intensity grade, after waking display screen up, classification progressively increases progressively lights the backlight of display screen, and stop the time interval of setting between adjacent two little grade brightness, allow user's eyes slowly adapt to the current backlight illumination of display screen, the eyes that solved the people contact suddenly the display screen of light under dark surrounds, cause dazzling, the inadaptable problem that presents.Optimization to a great extent user's experience.
In addition, calculate and put out the time interval of screen to bright screen by timer, when timing time has surpassed set point, illustrate that display system puts out screen and surpassed a period of time, in the situation that during the request of the lower response of ambient light intensity bright screen, just need classification to light the backlight of display screen, allow eyes of user slowly adapt to the current backlight illumination of display screen; If the timer timing time, less than set point, illustrates so that the user has just extinguished display screen soon, eyes have adapted to display backlight brightness just now, only need this moment directly to respond the bright screen request, and directly light display backlight and get final product.Effectively improve the intellectuality of mobile terminal, to the user, brought brand-new experience.
Description of drawings
Fig. 1 is a kind of embodiment 1 schematic flow sheet of regulating the method for display backlight of the present invention;
Fig. 2 is a kind of embodiment 2 schematic flow sheets of regulating the method for display backlight of the present invention;
A kind of embodiment 3 structural representation block diagrams of regulating the system of display backlight of the present invention during Fig. 3;
A kind of embodiment 4 structural representation block diagrams of regulating the system of display backlight of the present invention during Fig. 4.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment that obtains, belong to the scope of protection of the invention.
Embodiment 1:
Embodiments of the invention 1 provide a kind of method of regulating display backlight, below in conjunction with accompanying drawing, the present embodiment are elaborated.
Fig. 1 is the schematic flow sheet of the embodiment of the present invention 1, please refer to Fig. 1, and the method for the present embodiment comprises the following steps:
S1, when display system receives the bright screen request, start optical sensor; Wherein start described bright screen request and include but not limited to phone, note prompting, perhaps press power button;
S2, by optical sensor, gather current ambient light intensity, the ambient light intensity that collects is reported to application layer, and judges whether current ambient light intensity is the minimum intensity grade; Be judged as YES and enter step S3, be judged as otherwise enter step S4;
If the current ambient light intensity of S3 is the minimum intensity grade, the backlight illumination of application layer set and display screen is the minimum brightness grade, the request of response bright screen, and classification lights the backlight of display screen, until the backlight illumination of display screen reaches the minimum brightness grade;
If the current ambient light intensity of S4 is greater than the minimum intensity grade, application layer arranges the required backlight illumination of display screen according to current ambient light intensity, the request of response bright screen, and directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen.
The invention is intended to realize the backlight illumination of more intelligent adjusting display screen, when ambient light intensity is low, light the backlight of display screen with realizing incremental classification, allow eyes of user slowly adapt to the backlight illumination of display screen, avoid human eye under dark surrounds to contact suddenly bright display screen, cause dazzling, the inadaptable problem that presents.
If current ambient light intensity is greater than the minimum intensity grade, illustrate that present surround lighting is also brighter, therefore can the current ambient light intensity setting backlight illumination correspondingly of direct basis, and the backlight illumination grade to adapting with the current environment luminous intensity backlight of directly lighting display screen.
, as a kind of preferred version, also comprised before step S1:
Set in advance the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to a plurality of little grade brightness that increase progressively in advance, and the time interval between adjacent two little grade brightness is set.
In the present embodiment, the backlight illumination of the corresponding relation of described ambient light intensity and backlight illumination, described minimum brightness grade is set to time interval between a plurality of little grade brightness that increase progressively and adjacent two little grade brightness and is built in mobile terminal before all dispatching from the factory.When optical sensor collected current ambient light intensity, the backlight illumination of correspondence with it that arranges during just according to Default Value was adjusted display screen.To make the user read soft, not dazzling and reach the saving power supply in order to allow, when ambient light intensity was weak, the backlight illumination of display screen should be adjusted to reduced levels, and when ambient light intensity was stronger, the backlight illumination of display screen should be adjusted to higher level.
As a kind of preferred version, the detailed process backlight that display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness simultaneously with the backlight lightening of display screen, then the backlight illumination of described display screen increases progressively successively step by step from minimum little grade brightness, until the backlight illumination of display screen reaches the minimum brightness grade, and stop the time interval of setting between adjacent two little grade brightness.
As a kind of preferred version, the backlight illumination of described minimum brightness grade is set to 5 little grade brightness.
As a kind of preferred version, the time interval between described adjacent two little grade brightness is 2 seconds-8 seconds.And in the present embodiment, preferred, the time interval of setting between described adjacent two little grade brightness is 2 seconds.
Embodiment 2
Embodiments of the invention 2 provide a kind of method of regulating display backlight, are the improvement of carrying out on the basis of embodiment 1.Fig. 2 is the realization flow figure of the embodiment of the present invention 2, please refer to Fig. 2, and the method for the embodiment of the present invention comprises the following steps:
S1, when display system receives the bright screen request, start optical sensor; Start described bright screen request and include but not limited to phone, note prompting, perhaps press power button;
S2, by optical sensor, gather current ambient light intensity, the ambient light intensity that collects is reported to application layer, and judges whether current ambient light intensity is the lowest class intensity;
If the current ambient light intensity of S3 is the lowest class intensity, the backlight illumination of application layer set and display screen is the minimum brightness grade, the request of response bright screen, and classification lights the backlight of display screen, until the backlight illumination of display screen reaches the minimum brightness grade;
If the current ambient light intensity of S4 is greater than the lowest class intensity, application layer arranges the required backlight illumination of display screen according to current ambient light intensity, the request of response bright screen, and directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen.
The invention is intended to realize the backlight illumination of more intelligent adjusting display screen, when ambient light intensity is low, that realizes incremental classification lights the backlight of display screen, allow eyes of user slowly adapt to the backlight illumination of display screen, avoid human eye under dark surrounds to contact suddenly bright display screen, cause dazzling, the inadaptable problem that presents.
If current ambient light intensity is greater than the minimum intensity grade, illustrate that present surround lighting is also brighter, therefore can the current ambient light intensity setting backlight illumination correspondingly of direct basis, and the backlight illumination grade to adapting with the current environment luminous intensity backlight that can directly light display screen.
S5, in display system, receive and put out when request screen, whether judge current ambient light intensity less than the lowest class, if not, response is put out screen and is asked, and extinguishes display screen, if enter step S6;
S6, extinguish display screen, and start simultaneously timer;
S7, when whether the detection display system receives the bright screen request again, if timer stops timing, and enter step S8, continue if not execution step S7;
S8, judge that whether timing time surpasses set point, be judged as otherwise respond the bright screen request, directly light the required backlight illumination of current environment luminous intensity backlight of display screen; Be judged as YES and enter step S2.
In the present embodiment,, if the timer timing time has surpassed set point, illustrate that display system puts out screen and surpassed a period of time.If current ambient light intensity is very low, just illustrate that so also display screen under the state of dark, puts out the screen state and continued a period of time, in the time of the request of response bright screen, just need classification to light the backlight of display screen, allow eyes of user slowly adapt to the backlight illumination of display screen;
If the timer timing time, less than set point, illustrates so that the user has just extinguished display screen soon, eyes have adapted to display backlight brightness just now, only need this moment directly to respond the bright screen request, and directly light display backlight and get final product.
, as a kind of preferred version, also comprised before step S1:
Set in advance the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to a plurality of little grade brightness that increase progressively in advance, and sets the time interval between adjacent two little grade brightness; And the set point that sets in advance timer.
In the present embodiment, the backlight illumination of the corresponding relation of described ambient light intensity and backlight illumination, described minimum brightness grade is set to time interval between a plurality of little grade brightness that increase progressively, adjacent two little grade brightness and the set point of timer is all to select according to actual conditions, and is built in mobile terminal before all dispatching from the factory.When optical sensor collected current ambient light intensity, the backlight illumination of correspondence with it that arranges during just according to Default Value was adjusted display screen.
As a kind of preferred version, the detailed process backlight that display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness simultaneously with the backlight lightening of display screen, then the backlight illumination of described display screen increases progressively successively step by step from minimum little grade brightness, until the backlight illumination of display screen reaches the minimum brightness grade, and stop the time interval of setting between adjacent two little grade brightness.
In the present embodiment, preferred, the backlight illumination of described minimum brightness grade is set to 5 little grade brightness.
As a kind of preferred version, the time interval between described adjacent two little grade brightness is 2 seconds-8 seconds.In the present embodiment, preferred, the time interval between described adjacent two little grade brightness is 5 seconds.
For the ease of understanding, the backlight illumination that display screen is set when dispatching from the factory is illustrated as the mobile phone of five brightness degrees as example.Backlight illumination is set when for example, mobile phone dispatches from the factory is: 10% brightness degree, 30% brightness degree, 50% brightness degree, 70% brightness degree and 100% brightness degree; Also be provided with simultaneously backlight illumination grade corresponding to different ambient light intensities.
Also the lowest backlight brightness degree is that 10% brightness degree is set to 5 little grade brightness that increase progressively simultaneously, as is set to 5 little grade brightness of 2% little grade brightness, 4% little grade brightness, 6% little grade brightness, 8% little grade brightness and 10% little grade brightness.And the time interval between adjacent two little grade brightness is 5 seconds.
Wherein, the set point that also is provided with described timer is 30 minutes.
Below describe as an example of practical application example:
The ambient light intensity that arranges when form 1 dispatches from the factory for mobile phone and the corresponding relation (certainly only illustrate here, different mobile terminals and different optical sensors arrange all can be different) of backlight illumination grade.
| Ambient light intensity | Backlight illumination |
| Less than 30 | 10 |
| 30～800 | 30% brightness degree |
| 800～2500 | 50% brightness degree |
| 2500～5500 | 70% brightness degree |
| More than 5500 | 100% brightness degree |
Table 1
In table 1, the minimum intensity grade of ambient light intensity is less than 30, the environment of this moment is darker, although mobile phone is by the application optical sensor, realize that intelligence is adjusted to 10% brightness degree with the backlight illumination of display screen, still can be very dazzling but suddenly contact the backlight of 10% brightness degree for the human eye that adapts to dark surrounds, can't adapt at once.Wherein, the ambient light intensity in table 1 refers to the data value that direct register from optical sensor the inside reads out.
In the present embodiment, for example: the late into the night, when mobile phone is suddenly sent a telegram here or is carried out note, optical sensor in mobile phone starts automatically, and collecting current ambient light intensity is 20 o'clock, and this ambient light intensity of 20 is reported to application layer, after application layer receives this ambient light intensity of 20, by judging that this ambient light intensity is the minimum intensity grade, 10% brightness degree that is set as backlight with mobile phone display screen, then respond the bright screen request.Wake display screen up, be 2% little grade brightness simultaneously with the backlight lightening of display screen, and stop and allowed in 5 seconds after people's adaptation of eye, display screen backlight increased to 4% little grade brightness, 4% little grade brightness stops after 5 seconds and increases to next little grade brightness again, by that analogy,, until reach 10% little grade brightness, namely reached the backlight illumination of minimum brightness grade; The uncomfortable situation such as dazzling grade of effectively having avoided the unexpected bright screen of mobile phone to cause human eye.
When the display system of mobile phone receives while putting out the screen request, collecting current ambient light intensity by optical sensor is 20, judge that current ambient light intensity is the minimum intensity grade, startup timer timing when therefore extinguishing display screen.Mobile phone receives the bright screen request again, as press power key, timer stops timing, this moment, the timing of timer was 10 minutes, through judgement, the timing time of timer, less than 30 minutes that set, illustrates that so the user has just extinguished display screen soon, and eyes have adapted to display backlight brightness just now.The request of response bright screen, wake display screen up and directly light the backlight to the high-high brightness grade of display screen, and namely 10% brightness degree gets final product.Effectively improve the intellectuality of mobile terminal, to the user, brought brand-new experience.
Embodiment 3
Embodiments of the invention 3 provide a kind of system of regulating display backlight, and Fig. 3 is the structural representation block diagram of the system that provides of the embodiment of the present invention 3.This system comprises:
Display screen detecting unit 20,, for detection of the bright screen request of display screen, perhaps put out the screen request;
The first judging unit 40, be used for judging whether described optical sensor 30 collects current ambient light intensity is the lowest class intensity;
Wherein, to light the detailed process backlight of display screen as follows in described classification:
Wake display screen up, and be minimum little grade brightness simultaneously with the backlight lightening of display screen, then the backlight illumination of described display screen increases progressively successively step by step from minimum little grade brightness, until the backlight illumination of display screen reaches the minimum brightness grade, and stop the time interval of setting between adjacent two little grade brightness.
As a kind of preferred scheme, this system also comprises:
Setting unit 10, for the corresponding relation of setting and storage environment luminous intensity and backlight illumination grade; The backlight illumination that arranges and store the minimum brightness grade is a plurality of little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With the set point that arranges and store timer.
As a kind of preferred version, the backlight illumination of described minimum brightness level is set to 5 little grade brightness, and the time interval between described adjacent two little grade brightness is 2 seconds-8 seconds.In the present embodiment, preferred, the time interval between described adjacent two little grade brightness is 4 seconds.
Embodiment 4
Embodiments of the invention 4 provide a kind of system of regulating display backlight, are the improvement of carrying out on the basis of embodiment 3.Fig. 4 is the structural representation block diagram of the system that provides of the embodiment of the present invention 4.This system comprises:
Setting unit 10, for the corresponding relation of setting and storage environment luminous intensity and backlight illumination grade; The backlight illumination that arranges and store the minimum brightness grade is a plurality of little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With the set point that arranges and store timer.
Display screen detecting unit 20,, for detection of the bright screen request of display screen, perhaps put out the screen request;
The first judging unit 40, be used for judging whether described optical sensor 30 collects current ambient light intensity is the lowest class intensity;
Timer 60, be used for automatically starting when the environment that ambient light intensity is the lowest class intensity extinguishes display, detects to put out when screen is asked at described display screen detecting unit 20 automatically to stop, and calculates and put out the time interval of screen to bright screen;
The second judging unit 70, be used for whether judging described timer 60 timing times greater than set point, when timer 60 timing times direct bright screen during less than set point.
Described backlight illumination regulon 50 also is used for: when the second judging unit 70 judges timer 60 timing times less than set point, directly light the backlight illumination of display screen to the required backlight illumination of current environment luminous intensity; , according to current ambient light intensity, regulate the backlight of display screen regulated accordingly during greater than set point when the timing time of the second judging unit 70 judgement timers 60.
In the present embodiment,, if timer 60 timing times have surpassed set point, illustrate that display system puts out screen and surpassed a period of time.If current ambient light intensity is very low, just illustrate that so also display screen under the state of dark, puts out the screen state and continued a period of time, in the time of the request of response bright screen, just need classification to light the backlight of display screen, allow eyes of user slowly adapt to the backlight illumination of display screen;
If timer 60 timing times, less than set point, illustrate so that the user has just extinguished display screen soon, eyes have adapted to display backlight brightness just now, only need this moment directly to respond the bright screen request, and directly light display backlight and get final product.
Wherein, to light the detailed process backlight of display screen as follows in described classification:
Wake display screen up, and be minimum little grade brightness simultaneously with the backlight lightening of display screen, then the backlight illumination of described display screen increases progressively successively step by step from minimum little grade brightness, until the backlight illumination of display screen reaches the minimum brightness grade, and stop the time interval of setting between adjacent two little grade brightness.
As a kind of preferred version, the backlight illumination of described minimum brightness level is set to 5 little grade brightness, and the time interval between described adjacent two little grade brightness is 2 seconds-8 seconds.In the present embodiment, preferred, the time interval between described adjacent two little grade brightness is 4 seconds.
Embodiment 5
Inventive embodiment 5 provides a kind of mobile terminal that can regulate display backlight, this mobile terminal comprises the system of above-mentioned adjusting display backlight, can a kind of method of regulating display backlight corresponding to application of aforementioned, details, referring to the description of above-described embodiment 1 to embodiment 4, do not repeat them here.
It should be noted that in said system embodiment, included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; 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.
Described mobile terminal can be that mobile phone, e-book, PDA(Personal Digital Assistant), palmtop PC, human-computer interaction terminal or other have the hand held terminal unit of Presentation Function.
In addition, one of ordinary skill in the art will appreciate that all or part of step that realizes in the various embodiments described above method is to come the relevant hardware of instruction to complete by program, corresponding program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk or CD etc.
Above-described embodiment is the better execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (11)
1. a method of regulating display backlight, is characterized in that, the method comprises the following steps:
S1, when display system receives the bright screen request, start optical sensor;
S2, by optical sensor, gather current ambient light intensity, the ambient light intensity that collects is reported to application layer, and judges whether current ambient light intensity is the minimum intensity grade;
If the current ambient light intensity of S3 is the minimum intensity grade, the backlight illumination of application layer set and display screen is the minimum brightness grade, the request of response bright screen, and classification lights the backlight of display screen, until the backlight illumination of display screen reaches the minimum brightness grade;
If the current ambient light intensity of S4 is greater than the minimum intensity grade, application layer arranges the required backlight illumination of display screen according to current ambient light intensity, the request of response bright screen, and directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen.
2. a kind of method of regulating display backlight according to claim 1, is characterized in that, the method also comprises:
S5, in display system, receive and put out when request screen, whether judge current ambient light intensity less than the lowest class, if not, extinguish display screen, if enter step S6;
S6, extinguish display screen, and start simultaneously timer;
S7, when display system receives the bright screen request again, timer stops timing;
S8, judge that whether the timer timing time surpasses set point, respond if not the bright screen request, directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen; If enter step S2.
3. a kind of method of regulating display backlight according to claim 1, is characterized in that, also comprised before step S1:
Set in advance the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to a plurality of little grade brightness that increase progressively in advance, and the time interval between adjacent two little grade brightness is set.
4. a kind of method of regulating display backlight according to claim 2, is characterized in that, also comprised before step S1:
Set in advance the set point of timer.
5. a kind of described method of regulating display backlight according to claim 3, is characterized in that, the detailed process backlight that display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness simultaneously with the backlight lightening of display screen, then the backlight illumination of described display screen increases progressively successively step by step from minimum little grade brightness, until the backlight illumination of display screen reaches the minimum brightness grade, and stop the time interval of setting between adjacent two little grade brightness.
6. according to claim 3 or 5 a kind of described methods of regulating display backlight, is characterized in that, the backlight illumination of described minimum brightness grade is set to 5 little grade brightness.
7. a kind of method of regulating display backlight according to claim 6, it is characterized in that: the time interval between described adjacent two little grade brightness is 2 seconds-8 seconds.
8. the system of the method for the described adjusting display backlight of any one in a kind according to claim 1-7, is characterized in that, this system comprises:
The display screen detecting unit,, for detection of the bright screen request of display screen, perhaps put out the screen request;
Optical sensor, when described display screen detecting unit detects the bright screen request, start automatically, gathers current ambient light intensity;
The first judging unit, be used for judging whether described optical sensor collects current ambient light intensity is the minimum intensity grade;
The backlight illumination regulon, when the current ambient light intensity of described the first judgment unit judges is the minimum intensity grade, the backlight illumination of set and display screen is the minimum brightness grade, and classification lights the backlight of display screen, until the backlight illumination of display screen reaches the minimum brightness grade; When the current ambient light intensity of described the first judgment unit judges during greater than the minimum intensity grade, collect current ambient light intensity according to optical sensor the required backlight illumination of display screen is set, and directly light the backlight to the required backlight illumination of current environment luminous intensity of display screen.
9. system according to claim 8, is characterized in that, this system also comprises:
Timer, be used for automatically starting when the environment that ambient light intensity is the minimum intensity grade extinguishes display, detects to put out when screen is asked at described display screen detecting unit automatically to stop, and calculates and put out the time interval of screen to bright screen;
The second judging unit, be used for judging that whether described timer timing time is greater than set point;
Described backlight illumination regulon also is used for: when the timing time of the second judgment unit judges timer, during less than set point, directly light the backlight illumination of display screen to the required backlight illumination of current environment luminous intensity; , according to current ambient light intensity, regulate the backlight of display screen regulated accordingly during greater than set point when the timing time of the second judgment unit judges timer.
10. according to claim 8 or claim 9 system, is characterized in that, this system also comprises:
Setting unit, for the corresponding relation of setting and storage environment luminous intensity and backlight illumination grade; The backlight illumination that arranges and store the minimum brightness grade is a plurality of little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With the set point that arranges and store timer.
11. the mobile terminal that can regulate display backlight, is characterized in that, comprises the system of adjusting display backlight as described in claim 8 to 10 any one.
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