CN103401970B - A kind of method, system and mobile terminal regulating display backlight - Google Patents
A kind of method, system and mobile terminal regulating display backlight Download PDFInfo
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- CN103401970B CN103401970B CN201310311821.2A CN201310311821A CN103401970B CN 103401970 B CN103401970 B CN 103401970B CN 201310311821 A CN201310311821 A CN 201310311821A CN 103401970 B CN103401970 B CN 103401970B
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Abstract
The invention discloses a kind of method, system and the mobile terminal that regulate display backlight, said method comprising the steps of: when display system receives bright screen request; Gather current ambient light intensity by optical sensor, and judge whether current ambient light intensity is minimum intensity grade; Be judged as YES, then the backlight illumination of set and display screen is minimum brightness grade, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade; Be judged as NO, then the backlight illumination needed for display screen be set according to current ambient light intensity, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity.The present invention is when ambient light intensity is lower, 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 the display screen of light, cause dazzling, the inadaptable problem presented.Optimize the experience of user.
Description
Technical field
The present invention relates to mobile communication technology field; Be specifically related to a kind of method, system and the mobile terminal that regulate display backlight.
Background technology
In prior art, mobile terminal, by application optical sensor, realizes the backlight illumination grade of Intelligent adjustment display screen.Described optical sensor can perception ambient light situation, and informs the automatic adjusting backlight luminance grade of process chip, thus reduces the power consumption of product, extends the operating time of battery to greatest extent.When ambient light intensity is more weak, backlight illumination lower grade, and when ambient light intensity is stronger, backlight illumination higher grade.Gather current ambient light intensity by optical sensor, and carry out the backlight illumination grade of Intelligent adjustment mobile terminal display screen according to ambient light intensity, can reach and make user read object that is soft, not dazzling and power saving.
But existing mobile terminal is in the environment of dark, and during response bright screen request, direct bright screen, directly lights the backlight of display screen to required brightness often.And the eyes of people are adapting under dark surrounds, if the object of unexpected contact light, can very inadaptable, very dazzling.Such as in routine use mobile phone process; often can run into following situation; such as when the late into the night; mobile phone is sent a telegram here suddenly; or when 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 the experience of user poor.
Summary of the invention
The object of the invention is to solve above-mentioned defect of the prior art, a kind of method, system and the mobile terminal that regulate display backlight are provided, solve under the condition that ambient light intensity is lower, the problem that the display screen that human eye can not adapt to unexpected bright screen at once presents.
Object of the present invention can reach by taking following technical scheme:
There is provided a kind of method regulating display backlight, the method comprises the following steps:
S1, when display system receives bright screen request, start optical sensor;
S2, gather current ambient light intensity by optical sensor, the ambient light intensity collected is reported to application layer, and judges whether current ambient light intensity is minimum intensity grade;
If the current ambient light intensity of S3 is minimum intensity grade, the backlight illumination of application layer set and display screen is minimum brightness grade, the request of response bright screen, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade;
If the current ambient light intensity of S4 is greater than minimum intensity grade, application layer arranges the backlight illumination needed for display screen according to current ambient light intensity, the request of response bright screen, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity.
As a kind of preferred version, described method also comprises:
S5, display system receive put out screen request time, judge whether current ambient light intensity is less than the lowest class, if not, then extinguish display screen, if so, then enter step S6;
S6, extinguishing display screen, and start timer simultaneously;
S7, when display system receives bright screen request again, timer stop timing;
S8, judge whether timing time exceedes set point, then respond bright screen request if not, directly light the backlight of display screen to the backlight illumination needed for current environment luminous intensity; If then enter step S2.
As a kind of preferred version, also comprised before step S1:
Pre-set the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to multiple little grade brightness increased 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:
Pre-set the set point of timer.
As a kind of preferred version, the detailed process that the backlight of display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness by the backlight lightening of display screen simultaneously, 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 minimum brightness grade, and between adjacent two little grade brightness, stop the time interval of setting.
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 system for the method for described adjustment display backlight, this system comprises:
Display screen detecting unit, for the bright screen request of detection display screen, or puts out screen request;
Optical sensor, when described display screen detecting unit detects bright screen request, automatically starts, gathers current ambient light intensity;
Whether the first judging unit is minimum intensity grade for judging that described optical sensor collects current ambient light intensity;
Backlight illumination regulon, when described first judging unit judges that current ambient light intensity is minimum intensity grade, the backlight illumination of set and display screen is minimum brightness grade, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade; When described first judging unit judges that current ambient light intensity is greater than minimum intensity grade, collect current ambient light intensity according to optical sensor and backlight illumination needed for display screen is set, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity.
As a kind of preferred version, this system also comprises:
Timer, starts during for being extinguishing display in the environment of minimum intensity grade at ambient light intensity automatically, automatically stops when described display screen detecting unit detects and puts out screen request, calculates and puts out the time interval of screen to bright screen;
Second judging unit, for judging whether described timer timing time is greater than set point;
Described backlight illumination regulon also for: when the second judging unit judges that the timing time of timer is less than set point, directly light the backlight illumination of display screen to the backlight illumination needed for current environment luminous intensity; When the second judging unit judges that the timing time of timer is greater than set point, then regulate according to current ambient light intensity and the backlight of display screen is regulated accordingly.
As a kind of preferred version, this system also comprises:
Setting unit, for arranging and the corresponding relation of storage environment luminous intensity and backlight illumination grade; To arrange and the backlight illumination storing minimum brightness grade is multiple little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With arrange and store the set point of timer.
There is provided a kind of mobile terminal that can regulate display backlight, this mobile terminal comprises the system of above-mentioned adjustment display backlight.
The present invention has following beneficial effect relative to prior art:
Beneficial effect of the present invention is, by the backlight illumination of minimum brightness grade being set to multiple little grade brightness increased progressively, before the request of response bright screen, if judge, current environment luminous intensity is when being in minimum intensity grade, then after waking display screen up, the backlight of what classification progressively increased progressively light display screen, and between adjacent two little grade brightness, stop the time interval of setting, the eyes of user are allowed slowly to adapt to the current backlight illumination of display screen, solve the eyes display screen that contact is bright suddenly under dark surrounds of people, cause dazzling, the inadaptable problem presented.The experience optimizing user to a great extent.
In addition, calculated by timer and put out the time interval of screen to bright screen, when timing time has exceeded set point, illustrate that display system is put out screen and exceeded a period of time, when then responding bright screen request when ambient light intensity is lower, 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 timer timing time is less than set point, so illustrate that user has just extinguished display screen soon, eyes have adapted to display backlight brightness just now, now only need directly to respond bright screen request, and directly light display backlight.Effectively improve the intellectuality of mobile terminal, bring brand-new experience to user.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment 1 schematic flow sheet regulating the method for display backlight of the present invention;
Fig. 2 is a kind of embodiment 2 schematic flow sheet regulating the method for display backlight of the present invention;
A kind of embodiment 3 structural schematic block diagram regulating the system of display backlight of the present invention during Fig. 3;
A kind of embodiment 4 structural schematic block diagram regulating the system of display backlight of the present invention during Fig. 4.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, 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, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
Embodiments of the invention 1 provide a kind of method regulating display backlight, are described in detail to the present embodiment below in conjunction with accompanying drawing.
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 bright screen request, start optical sensor; Wherein start described bright screen request and include but not limited to phone, inform by short message, or press power button;
S2, gather current ambient light intensity by optical sensor, the ambient light intensity collected is reported to application layer, and judges whether current ambient light intensity is minimum intensity grade; Be judged as YES, enter step S3, be judged as otherwise enter step S4;
If the current ambient light intensity of S3 is minimum intensity grade, the backlight illumination of application layer set and display screen is minimum brightness grade, the request of response bright screen, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade;
If the current ambient light intensity of S4 is greater than minimum intensity grade, application layer arranges the backlight illumination needed for display screen according to current ambient light intensity, the request of response bright screen, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity.
The invention is intended to the backlight illumination realizing more intelligent adjustment display screen, when ambient light intensity is lower, light the backlight of display screen with realizing incremental classification, eyes of user is allowed slowly to adapt to the backlight illumination of display screen, avoid human eye under dark surrounds to contact suddenly the display screen of light, cause dazzling, the inadaptable problem presented.
If current ambient light intensity is greater than minimum intensity grade, illustrate that current surround lighting is also brighter, therefore corresponding backlight illumination can be set the current ambient light intensity of direct basis, and the backlight directly lighting display screen is to the backlight illumination grade adapted with current environment luminous intensity.
As a kind of preferred version, also comprised before step S1:
Pre-set the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to multiple little grade brightness increased progressively in advance, and the time interval between adjacent two little grade brightness is set.
In the present embodiment, the corresponding relation of described ambient light intensity and backlight illumination, the backlight illumination of the described minimum brightness grade time interval be set between multiple little grade brightness of increasing progressively and adjacent two little grade brightness all dispatch from the factory before in the terminal built-in.When optical sensor collects current ambient light intensity, just according to the backlight illumination corresponding with it arranged during Default Value, display screen is adjusted.Make user read soft, not dazzling and reach saving power supply to allow, when ambient light intensity is more weak, the backlight illumination of display screen should be adjusted to reduced levels, and when ambient light intensity is stronger, the backlight illumination of display screen should be adjusted to higher level.
As a kind of preferred version, the detailed process that the backlight of display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness by the backlight lightening of display screen simultaneously, 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 minimum brightness grade, and between adjacent two little grade brightness, stop the time interval of setting.
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, preferably, the time interval set between described adjacent two little grade brightness is 2 seconds.
Embodiment 2
Embodiments of the invention 2 provide a kind of method regulating display backlight, are the improvement carried 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 bright screen request, start optical sensor; Start described bright screen request and include but not limited to phone, inform by short message, or press power button;
S2, gather current ambient light intensity by optical sensor, the ambient light intensity collected 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 minimum brightness grade, the request of response bright screen, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade;
If the current ambient light intensity of S4 is greater than the lowest class intensity, application layer arranges the backlight illumination needed for display screen according to current ambient light intensity, the request of response bright screen, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity.
The invention is intended to the backlight illumination realizing more intelligent adjustment display screen, when ambient light intensity is lower, realize the backlight lighting display screen of incremental classification, eyes of user is allowed slowly to adapt to the backlight illumination of display screen, avoid human eye under dark surrounds to contact suddenly the display screen of light, cause dazzling, the inadaptable problem presented.
If current ambient light intensity is greater than minimum intensity grade, illustrate that current surround lighting is also brighter, therefore corresponding backlight illumination can be set the current ambient light intensity of direct basis, and the backlight directly can lighting display screen is to the backlight illumination grade adapted with current environment luminous intensity.
S5, display system receive put out screen request time, judge whether current ambient light intensity is less than the lowest class, if not, then response put out screen request, extinguish display screen, if so, then enter step S6;
S6, extinguishing display screen, and start timer simultaneously;
When whether S7, detection display system receive bright screen request again, if then timer stops timing, and enter step S8, then continue if not to perform step S7;
S8, judge whether timing time exceedes set point, be judged as otherwise respond bright screen request, directly lighting the backlight illumination needed for backlight current environment luminous intensity of display screen; Be judged as YES, enter step S2.
In the present embodiment, if timer timing time has exceeded set point, illustrate that display system is put out screen and exceeded a period of time.If current ambient light intensity is very low, so also just illustrate that display screen is under the state of dark, puts out screen state and continue for a period of time, when response bright screen request, 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 timing time is less than set point, so illustrate that user has just extinguished display screen soon, eyes have adapted to display backlight brightness just now, now only need directly to respond bright screen request, and directly light display backlight.
As a kind of preferred version, also comprised before step S1:
Pre-set the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to multiple little grade brightness increased progressively in advance, and set the time interval between adjacent two little grade brightness; And pre-set the set point of timer.
In the present embodiment, the corresponding relation of described ambient light intensity and backlight illumination, the backlight illumination of described minimum brightness grade be set to multiple increase progressively little grade brightness, time interval between adjacent two little grade brightness and timer set point be all can select according to actual conditions, and in the terminal built-in before all dispatching from the factory.When optical sensor collects current ambient light intensity, just according to the backlight illumination corresponding with it arranged during Default Value, display screen is adjusted.
As a kind of preferred version, the detailed process that the backlight of display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness by the backlight lightening of display screen simultaneously, 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 minimum brightness grade, and between adjacent two little grade brightness, stop the time interval of setting.
In the present embodiment, preferably, 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, preferably, the time interval between described adjacent two little grade brightness is 5 seconds.
For the ease of understanding, the backlight illumination arranging display screen during to dispatch from the factory is that the mobile phone of five brightness degrees is illustrated.Such as, arranging backlight illumination when 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 the backlight illumination grade that different ambient light intensities is corresponding simultaneously.
Also lowest backlight brightness degree i.e. 10% brightness degree is set to 5 little grade brightness increased progressively, as being 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 simultaneously.And the time interval between adjacent two little grade brightness is 5 seconds.
Wherein, the set point being also provided with described timer is 30 minutes.
Be described for practical application below:
Form 1 is the ambient light intensity of setting when mobile phone dispatches from the factory and the corresponding relation (certainly only illustrate here, different mobile terminals and different optical sensors are arranged all can be different) of backlight illumination grade.
| Ambient light intensity | Backlight illumination |
| Be less than 30 | 10% brightness degree |
| 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 for being less than 30, environment is now darker, although mobile phone is by application optical sensor, realize intelligence and the backlight illumination of display screen is adjusted to 10% brightness degree, but still can be very dazzling for the backlight suddenly contacting 10% brightness degree the human eye adapting to dark surrounds, cannot adapt at once.Wherein, the ambient light intensity in table 1 refers to the data value directly read out inside the register of optical sensor.
In the present embodiment, such as: 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, when to collect current ambient light intensity be 20, 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 minimum intensity grade, being 10% brightness degree by the backlight of mobile phone display screen, then responding bright screen request.Wake display screen up, be 2% little grade brightness by the backlight lightening of display screen simultaneously, and stop and within 5 seconds, allow after people's adaptation of eye, the backlight of display screen is increased to 4% little grade brightness, next little grade brightness is increased to again after 4% little grade brightness stops 5 seconds, by that analogy, until reach 10% little grade brightness, the backlight illumination of minimum brightness grade is namely reached; Effectively prevent the uncomfortable situation such as dazzling grade that the unexpected bright screen of mobile phone causes human eye.
When the display system of mobile phone receive put out screen request time, collecting current ambient light intensity by optical sensor is 20, judges that current ambient light intensity is minimum intensity grade, when starting timer while therefore extinguishing display screen.Mobile phone receives bright screen request again, as pressed power key, then timer stops timing, now the timing of timer is 10 minutes, through judging, the timing time of timer is less than 30 minutes of setting, and so illustrate that user has just extinguished display screen soon, eyes have adapted to display backlight brightness just now.The request of response bright screen, wakes display screen up and directly lights the backlight of display screen to high-high brightness grade, i.e. 10% brightness degree.Effectively improve the intellectuality of mobile terminal, bring brand-new experience to user.
Embodiment 3
Embodiments of the invention 3 provide a kind of system regulating display backlight, and Fig. 3 is the structural schematic block diagram of the system that the embodiment of the present invention 3 provides.This system comprises:
Display screen detecting unit 20, for the bright screen request of detection display screen, or puts out screen request;
Optical sensor 30, when described display screen detecting unit 20 detects bright screen request, automatically starts, gathers current ambient light intensity;
Whether the first judging unit 40 is the lowest class intensity for judging that described optical sensor 30 collects current ambient light intensity;
Backlight illumination regulon 50, when described first judging unit 40 judges that current ambient light intensity is minimum intensity grade, the backlight illumination of set and display screen is minimum brightness grade, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade; When described first judging unit 40 judges that current ambient light intensity is greater than minimum intensity grade, collect current ambient light intensity according to optical sensor 30 and backlight illumination needed for display screen is set, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity.
Wherein, the detailed process that the backlight of display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness by the backlight lightening of display screen simultaneously, 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 minimum brightness grade, and between adjacent two little grade brightness, stop the time interval of setting.
As the preferred scheme of one, this system also comprises:
Setting unit 10, for arranging and the corresponding relation of storage environment luminous intensity and backlight illumination grade; To arrange and the backlight illumination storing minimum brightness grade is multiple little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With arrange and store the set point of 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, preferably, 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 regulating display backlight, are the improvement carried out on the basis of embodiment 3.Fig. 4 is the structural schematic block diagram of the system that the embodiment of the present invention 4 provides.This system comprises:
Setting unit 10, for arranging and the corresponding relation of storage environment luminous intensity and backlight illumination grade; To arrange and the backlight illumination storing minimum brightness grade is multiple little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With arrange and store the set point of timer.
Display screen detecting unit 20, for the bright screen request of detection display screen, or puts out screen request;
Optical sensor 30, when described display screen detecting unit 20 detects bright screen request, automatically starts, gathers current ambient light intensity;
Whether the first judging unit 40 is the lowest class intensity for judging that described optical sensor 30 collects current ambient light intensity;
Backlight illumination regulon 50, when described first judging unit 40 judges that current ambient light intensity is minimum intensity grade, the backlight illumination of set and display screen is minimum brightness grade, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade; When described first judging unit 40 judges that current ambient light intensity is greater than minimum intensity grade, collect current ambient light intensity according to optical sensor 30 and backlight illumination needed for display screen is set, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity.
Timer 60, starts during for being extinguishing display in the environment of the lowest class intensity at ambient light intensity automatically, automatically stops when described display screen detecting unit 20 detects and puts out screen request, calculates and puts out the time interval of screen to bright screen;
Second judging unit 70, for judging whether described timer 60 timing time is greater than set point, the direct bright screen when timer 60 timing time is less than set point.
Described backlight illumination regulon 50 also for: when the second judging unit 70 judges that timer 60 timing time is less than set point, directly light the backlight illumination of display screen to the backlight illumination needed for current environment luminous intensity; When the second judging unit 70 judges that the timing time of timer 60 is greater than set point, then regulate according to current ambient light intensity and the backlight of display screen is regulated accordingly.
In the present embodiment, if timer 60 timing time has exceeded set point, illustrate that display system is put out screen and exceeded a period of time.If current ambient light intensity is very low, so also just illustrate that display screen is under the state of dark, puts out screen state and continue for a period of time, when response bright screen request, 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 time is less than set point, so illustrate that user has just extinguished display screen soon, eyes have adapted to display backlight brightness just now, now only need directly to respond bright screen request, and directly light display backlight.
Wherein, the detailed process that the backlight of display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness by the backlight lightening of display screen simultaneously, 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 minimum brightness grade, and between adjacent two little grade brightness, stop the time interval of setting.
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, preferably, 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 adjustment display backlight, can a kind of method regulating display backlight corresponding to application of aforementioned, details, see 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 carry out dividing 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 mobile phone, e-book, PDA(Personal Digital Assistant), palmtop PC, human-computer interaction terminal or other there is 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 realized in the various embodiments described above method is that the hardware that can carry out instruction relevant by program has come, 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 present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. regulate a method for display backlight, it is characterized in that, the method comprises the following steps:
S1, when display system receives bright screen request, start optical sensor;
S2, gather current ambient light intensity by optical sensor, the ambient light intensity collected is reported to application layer, and judges whether current ambient light intensity is minimum intensity grade;
If the current ambient light intensity of S3 is minimum intensity grade, the backlight illumination of application layer set and display screen is minimum brightness grade, the request of response bright screen, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade;
If the current ambient light intensity of S4 is greater than minimum intensity grade, application layer arranges the backlight illumination needed for display screen according to current ambient light intensity, the request of response bright screen, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity;
S5, display system receive put out screen request time, judge whether current ambient light intensity is less than the lowest class, if not, then extinguish display screen, if so, then enter step S6;
S6, extinguishing display screen, and start timer simultaneously;
S7, when display system receives bright screen request again, timer stop timing;
S8, judge whether timer timing time exceedes set point, then respond bright screen request if not, directly light the backlight of display screen to the backlight illumination needed for current environment luminous intensity; If then enter step S2.
2. a kind of method regulating display backlight according to claim 1, is characterized in that, also comprised before step S1:
Pre-set the corresponding relation of ambient light intensity and backlight illumination; And the backlight illumination of described minimum brightness grade is set to multiple little grade brightness increased progressively in advance, and the time interval between adjacent two little grade brightness is set.
3. a kind of method regulating display backlight according to claim 1, is characterized in that, also comprised before step S1:
Pre-set the set point of timer.
4. a kind of described method regulating display backlight according to claim 2, it is characterized in that, the detailed process that the backlight of display screen is lighted in described classification is as follows:
Wake display screen up, and be minimum little grade brightness by the backlight lightening of display screen simultaneously, 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 minimum brightness grade, and between adjacent two little grade brightness, stop the time interval of setting.
5. a kind of method regulating display backlight according to claim 2 or 4, is characterized in that, the backlight illumination of described minimum brightness grade is set to 5 little grade brightness.
6. a kind of method regulating display backlight according to claim 5, is characterized in that: the time interval between described adjacent two little grade brightness is 2 seconds-8 seconds.
7. a system for the method for the adjustment display backlight according to any one of claim 1-6, is characterized in that, this system comprises:
Display screen detecting unit, for the bright screen request of detection display screen, or puts out screen request;
Optical sensor, when described display screen detecting unit detects bright screen request, automatically starts, gathers current ambient light intensity;
Whether the first judging unit is minimum intensity grade for judging that described optical sensor collects current ambient light intensity;
Backlight illumination regulon, when described first judging unit judges that current ambient light intensity is minimum intensity grade, the backlight illumination of set and display screen is minimum brightness grade, and the backlight of display screen is lighted in classification, until the backlight illumination of display screen reaches minimum brightness grade; When described first judging unit judges that current ambient light intensity is greater than minimum intensity grade, collect current ambient light intensity according to optical sensor and backlight illumination needed for display screen is set, and the backlight directly lighting display screen is to the backlight illumination needed for current environment luminous intensity;
Timer, starts during for being extinguishing display in the environment of minimum intensity grade at ambient light intensity automatically, automatically stops when described display screen detecting unit detects and puts out screen request, calculates and puts out the time interval of screen to bright screen;
Second judging unit, for judging whether described timer timing time is greater than set point;
Described backlight illumination regulon also for: when the second judging unit judges that the timing time of timer is less than set point, directly light the backlight illumination of display screen to the backlight illumination needed for current environment luminous intensity; When the second judging unit judges that the timing time of timer is greater than set point, then regulate according to current ambient light intensity and the backlight of display screen is regulated accordingly.
8. system according to claim 7, is characterized in that, this system also comprises:
Setting unit, for arranging and the corresponding relation of storage environment luminous intensity and backlight illumination grade; To arrange and the backlight illumination storing minimum brightness grade is multiple little grade brightness; Arrange and store the time interval between adjacent two little grade brightness; With arrange and store the set point of timer.
9. can regulate a mobile terminal for display backlight, it is characterized in that, comprise the system of the adjustment display backlight as described in any one of claim 7 to 8.
Priority Applications (1)
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