CN103391365B - Mobile terminal backlight intensity accurately adjusted method, system and mobile terminal - Google Patents
Mobile terminal backlight intensity accurately adjusted method, system and mobile terminal Download PDFInfo
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- CN103391365B CN103391365B CN201310298672.0A CN201310298672A CN103391365B CN 103391365 B CN103391365 B CN 103391365B CN 201310298672 A CN201310298672 A CN 201310298672A CN 103391365 B CN103391365 B CN 103391365B
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Abstract
The invention discloses a mobile terminal backlight intensity accurately adjusted method, system and mobile terminal. The mobile terminal backlight intensity accurately adjusted method includes that when the mobile terminal receives a screen lightening request, the current ambient light intensity is collected through a light sensor and the level of the backlight intensity is adjusted according to the ambient light intensity; when the change of the current ambient light intensity is collected through the light sensor, the position state of a blocking object and a light hole is determined; if the blocking object is close to the light hole, a user can determine that the current ambient light intensity does not change and the existing level of the backlight intensity of a screen of the mobile terminal is maintained; if the blocking object is far away from the light hole, the level of the backlight intensity of the screen of the mobile terminal is readjusted according to the new ambient light intensity. According to the mobile terminal backlight intensity accurately adjusted method, system and mobile terminal, the light sensor is combined with a proximity sensor, so that the problem that the level of the backlight intensity is misadjusted due to the fact that the user blocks the light hole by accident is solved, the probability that the level of the backlight intensity is misadjusted is reduced to a large extent, and the reliable function experience is provided for the user.
Description
Technical field
The present invention relates to mobile communication technology field; Be specifically related to accurately to regulate the method for backlight of mobile terminal intensity, system and mobile terminal.
Background technology
In prior art, mobile terminal, by application optical sensor, realizes the backlight intensity grade of Intelligent adjustment screen.Described ambient light sensor can perception ambient light situation, and informs that process chip regulates backlight intensity grade automatically, thus reduces the power consumption of product, extends the operating time of battery to greatest extent.When ambient light intensity is more weak, backlight intensity lower grade, and when ambient light intensity is stronger, backlight intensity higher grade.Gather current ambient light intensity by optical sensor, and carry out the backlight intensity grade of Intelligent adjustment mobile terminal screen according to ambient light intensity, can reach and make user read object that is soft, not dazzling and power saving.
The operation principle of described optical sensor is: described mobile terminal is provided with light well, and optical sensor gathers current environment luminous intensity by light well.But, because existing mobile terminal size is different, and generally there is horizontal stroke, perpendicular screen using function, therefore in routine use mobile terminal process, following such situation is often had: such as under the environment that some fixing ambient light intensities are stronger, backlight intensity grade should be adjusted to the superlative degree, if now user switches horizontal stroke/perpendicular screen use, occur during hand-held mobile terminal blocking light well situation, so now because light well is blocked, optical sensor can think that current ambient light intensity is changed to more weak level by mistake, therefore the automatic backlight intensity grade by mobile terminal screen is adjusted to the lowest class, but in fact current ambient light intensity is change not, the backlight intensity grade of mobile terminal screen is adjusted to the lowest class, reading effect can be caused poor, user can not know and sees screen content clearly, like this Consumer's Experience will be had a strong impact on.
Summary of the invention
The object of the invention is to solve above-mentioned defect of the prior art, there is provided a kind of energy real environment-identification luminous intensity, the method of accurate adjustment backlight of mobile terminal intensity, system and mobile terminal, can realize correctly regulating backlight intensity grade according to true environment luminous intensity, for user provides more reliable functional experience.
Object of the present invention can reach by taking following technical scheme:
There is provided a kind of method of accurate adjustment backlight of mobile terminal intensity, the method comprises the following steps:
S1, when mobile terminal receives bright screen request, optical sensor gathers current ambient light intensity by light well, and the ambient light intensity collected is reported to application layer, after application layer receives ambient light intensity, regulate the backlight intensity grade of mobile terminal screen according to this ambient light intensity;
S2, when described optical sensor collect current ambient light intensity change time, first do not report the new ambient light intensity collected, first start proximity transducer, detecting shelter by proximity transducer is be in close to light well state, is still in away from light well state;
S3, when detect shelter be in close to light well state time, judge that current ambient light intensity does not change, maintain mobile terminal screen existing backlight intensity grade;
S4, when detect shelter be in away from light well state time, judge that current ambient light intensity changes, new ambient light intensity is reported to application layer, after application layer receives new ambient light intensity, readjust the backlight intensity grade of mobile terminal screen according to this new ambient light intensity.
As a kind of preferred version, described step S3 specifically comprises:
S301, when proximity transducer detect shelter be in close to light well state time, by this proximity state signal reporting to application layer;
After S302, application layer receive this proximity state signal, judgement is that the luminous intensity causing entering described light well close to light well due to shelter reduces, and current ambient light intensity does not change, and cancels and reports new ambient light intensity;
S303, former ambient light intensity is reported to application layer again, after application layer receives identical ambient light intensity, maintains the existing backlight intensity grade of mobile terminal screen.
As a kind of preferred version, described step S4 specifically comprises:
S401, when proximity transducer detect shelter be in away from light well state time, this is reported to application layer away from status signal;
S402, application layer receive this away from after status signal, judge that current ambient light intensity changes;
S403, new ambient light intensity is reported to application layer, after application layer receives new ambient light intensity, readjusts the backlight intensity grade of mobile terminal screen according to this new ambient light intensity.
As a kind of preferred version, in mobile terminal, preset the corresponding relation of ambient light intensity and backlight intensity grade, in the terminal built-in before the corresponding relation of described ambient light intensity and backlight intensity grade dispatches from the factory.
As a kind of preferred version, it is be in close to light well state that described proximity transducer detects shelter, and the process be still in away from light well state is as follows:
If proximity transducer detect the intensity of infrared external reflection be more than or equal to setting close to threshold value time, judge that shelter is in close to light well state; If proximity transducer detect the intensity of infrared external reflection be less than or equal to setting away from threshold value time, judge that shelter is in away from light well state.
As a kind of preferred version, described proximity transducer close to threshold value and in the terminal built-in before dispatching from the factory away from threshold value.
A system for the method for described accurate adjustment backlight of mobile terminal intensity, this system comprises:
Screen detection module, connects screen whether receive bright screen request for detecting mobile terminal;
Optical sensor, when described screen detection module detects bright screen request, automatically starts, gathers current ambient light intensity by the light well that mobile terminal is arranged;
Optical signal transmission module, uploads for the ambient light intensity collected by described optical sensor;
Proximity transducer, when described light sensors changes to current ambient light intensity, starts automatically, being be in close to light well state, being still in away from light well state for detecting shelter;
Position signalling transport module, for detecting the proximity state signal that obtains and uploading away from status signal by described proximity transducer;
Control module, the proximity state signal that described position signalling transport module is uploaded and being processed respectively away from status signal, if proximity state signal, so control the cancellation of described optical signal transmission module upload new ambient light intensity and again upload former ambient light intensity, trigger the instruction of corresponding backlight intensity level setting according to former ambient light intensity; If away from status signal, so control described optical signal transmission module and upload new ambient light intensity, and trigger the instruction of corresponding backlight intensity level setting according to this new ambient light intensity;
Backlight intensity adjustment module, for receiving the backlight intensity level setting instruction that described control module triggers, and adjusts accordingly according to the backlight intensity grade of this instruction to mobile terminal screen.
As a kind of preferred version, described proximity transducer is infrared ray proximity transducer, its inside comprises an infrared transmitting tube and an infrared receiving tube, when shelter is close to proximity transducer, described infrared receiving tube just can receive the infrared ray reflected through shelter, and shelter is more close to described proximity transducer, the infra-red intensity so reflected is larger, it is be in close to light well state that this proximity transducer detects shelter, and the process be still in away from light well state is as follows:
If when the intensity that infrared receiving tube receives infrared external reflection is more than or equal to setting threshold, judge that shelter is in close to light well state; If when the intensity that infrared receiving tube receives infrared external reflection is less than or equal to setting threshold, judge that shelter is in away from light well state.
There is provided a kind of mobile terminal that accurately can regulate backlight intensity, this mobile terminal comprises the system of above-mentioned accurate adjustment backlight of mobile terminal intensity.
The present invention has following beneficial effect relative to prior art:
Beneficial effect of the present invention is, combined by optical sensor and proximity transducer, solve user to be not intended to block light well and to cause mobile terminal mistake to regulate the problem of backlight intensity grade, when optical sensor collect current ambient light intensity change time, first do not report new ambient light intensity, but first by proximity transducer detect shelter close to or far away from light well state, when detect shelter be in close to light well state time, judgement changes because shelter causes optical sensor to judge ambient light intensity by accident close to light well, and then judge that current ambient light intensity does not change, maintain the existing backlight intensity grade of mobile terminal screen, reduce the probability of mistuning backlight intensity grade so to a great extent, solve people owing to blocking light well unconsciously, make optical sensor erroneous judgement ambient light intensity cause the problem of misoperation, optimize the experience of user.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention accurately regulates the method for backlight of mobile terminal intensity;
During Fig. 2, the present invention accurately regulates the structural schematic block diagram of the system of backlight of mobile terminal intensity.
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 of accurate adjustment backlight of mobile terminal intensity, 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 mobile terminal receives bright screen request, start optical sensor, optical sensor gathers current ambient light intensity (being set to X) by light well, and the ambient light intensity X collected is reported to application layer, after application layer receives ambient light intensity X, the request of response bright screen, regulates the backlight intensity grade of mobile terminal screen according to this ambient light intensity X; Described optical sensor continues to gather current ambient light intensity, and judges whether current environment luminous intensity changes, and then continues if not to gather, if then enter step S2;
S2, to change when described optical sensor collects current ambient light intensity, optical sensor collects current ambient light intensity and becomes Y from X, now first do not report the new ambient light intensity Y collected, first proximity transducer is started, detecting shelter by proximity transducer is be in close to light well state, is still in away from light well state; If shelter is in close to light well state, then enter step S3; If shelter is in away from light well state, then enter step S4;
S3, when detect shelter be in close to light well state time, judge that current ambient light intensity does not change, maintain mobile terminal screen existing backlight intensity grade;
S4, when detect shelter be in away from light well state time, judge that current ambient light intensity changes, ambient light intensity becomes Y from X, new ambient light intensity Y is reported to application layer, after application layer receives new ambient light intensity Y, readjust the backlight intensity grade of mobile terminal screen according to this new ambient light intensity Y.
Furthermore, described step S3 specifically comprises:
S301, when proximity transducer detect shelter be in close to light well state time, by this proximity state signal reporting to application layer;
After S302, application layer receive this proximity state signal, judgement is that the luminous intensity causing entering described light well close to light well due to shelter reduces, and current ambient light intensity does not change, and cancels and reports new ambient light intensity Y;
S303, former ambient light intensity X is reported to application layer again, after application layer receives identical ambient light intensity X, maintains the existing backlight intensity grade of mobile terminal screen.
Furthermore, described step S4 specifically comprises:
S401, when proximity transducer detect shelter be in away from light well state time, this is reported to application layer away from status signal;
S402, application layer receive this away from after status signal, and judge that current ambient light intensity changes, current ambient light intensity becomes Y from X;
S403, new ambient light intensity Y is reported to application layer, after application layer receives new ambient light intensity Y, readjusts the backlight intensity grade of mobile terminal screen according to this new ambient light intensity Y.
As a kind of preferred version, in mobile terminal, preset the corresponding relation of ambient light intensity and backlight intensity grade, in the terminal built-in before the corresponding relation of described ambient light intensity and backlight intensity grade dispatches from the factory.When optical sensor collects current ambient light intensity, just according to the backlight intensity grade corresponding with it arranged during Default Value, mobile terminal 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 intensity grade of screen should be adjusted to lower grade, when ambient light intensity is stronger, should be adjusted to higher level.
For the ease of understanding, arranging screen backlight strength grade during to dispatch from the factory is that the mobile phone of five grades is illustrated.Such as, arranging backlight intensity grade when mobile phone dispatches from the factory is: 10% backlight intensity grade, 30% backlight intensity grade, 50% backlight intensity grade, 70% backlight intensity grade and 100% backlight intensity grade.And when dispatching from the factory, be also provided with backlight intensity grade corresponding to different ambient light intensities simultaneously, 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 intensity grade.Wherein luminous intensity unit is cd(candela).
| Ambient light intensity (cd) | Backlight intensity grade |
| Be less than 20 | 10% backlight intensity grade |
| 20～300 | 30% backlight intensity grade |
| 300～4000 | 50% backlight intensity grade |
| 4000～7000 | 70% backlight intensity grade |
| More than 7000 | 100% backlight intensity grade |
Table 1
Such as: when to collect current ambient light intensity be 7500cd to the optical sensor in mobile phone, be that 7500cd reports to application layer by this ambient light intensity, after application layer receives the ambient light intensity of this 7500cd, the backlight intensity grade of mobile phone screen is adjusted to 100% backlight intensity grade.
When optical sensor collect current ambient light intensity become 200cd time, first start proximity transducer, proximity transducer detect block material be in close to light well state, be still in away from light well state;
If detect, block material is in close to light well state, then judge it is that the luminous intensity causing entering described light well close to light well due to shelter reduces, but the ambient light intensity of reality does not change, cancel the ambient light intensity of the 200cd reporting new current detection to arrive; Original 7500cd ambient light intensity is reported to application layer again, after application layer receives identical ambient light intensity, maintains the existing 100% backlight intensity grade of mobile phone screen.
If detect, block material is in away from light well state, judge that current ambient light intensity changes, ambient light intensity becomes 200cd from 7500cd, this 200cd ambient light intensity is reported to application layer, after application layer receives the ambient light intensity of 200cd, the ambient light intensity according to this 200cd regulates the backlight intensity grade of mobile phone screen to be 30% backlight intensity grade.
As a kind of preferred version, described proximity transducer is infrared ray proximity transducer, and this states proximity transducer detection block material is be in close to light well state, and the process be still in away from light well state is as follows:
If proximity transducer detect the intensity of infrared external reflection be more than or equal to setting close to threshold value time, judge that block material is in close to light well state; If proximity transducer detect the intensity of infrared external reflection be less than or equal to setting away from threshold value time, judge that block material is in away from light well state.
As a kind of preferred version, described proximity transducer close to threshold value and in the terminal built-in before dispatching from the factory away from threshold value.For the ease of understanding, below illustrate:
Such as, in the present embodiment, being 1000 close to threshold value setting, being 300 away from threshold value setting of described proximity transducer, when transducer detects infrared external reflection intensity more than 1000, then thinks that now block material is in close to light well state; When transducer detect receive infrared external reflection intensity be less than 300 time, then think that now block material is in away from light well state.Wherein said close to threshold values with away from threshold values [1000,300] be between buffer area between, last away from status signal or proximity state signal for buffer memory, that is: when first detecting that infrared external reflection intensity is 200, then judge that block material is in away from light well state, so after this, the infrared external reflection intensity level detected all judges that between 200-1000 shelter is in away from light well state, until detect that infrared external reflection intensity judges when reaching 1000 that block material is in close to light well state.When detecting that infrared external reflection intensity is 1100, judge that shelter is in close to light well state, so after this, when the infrared external reflection intensity level detected is between 1100-300, all judge that shelter is in close to light well proximity state, until when detecting that infrared reflection intensity is 300, judge that shelter is in away from light well state.
Certainly, in actual application, the proximity transducer of described proximity transducer also linear proximity transducer, ultrasonic wave proximity transducer or other models.
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.
Embodiment 2
Embodiments of the invention 2 provide a kind of system of accurate adjustment backlight of mobile terminal intensity, and Fig. 2 is the structural schematic block diagram of the system that the embodiment of the present invention 2 provides.This system comprises:
Screen detection module 10, connects screen whether receive bright screen request for detecting mobile terminal;
Optical sensor 20, when described screen detection module 10 detects bright screen request, automatically starts, gathers current ambient light intensity by the light well that mobile terminal is arranged;
Optical signal transmission module 30, uploads for the ambient light intensity collected by described optical sensor 20;
Proximity transducer 40, when described optical sensor 2 detects that current ambient light intensity changes, starts automatically, being be in close to light well state, being still in away from light well state for detecting block material;
Position signalling transport module 50, for detecting the proximity state signal that obtains and uploading away from status signal by described proximity transducer 40;
Control module 60, the proximity state signal that described position signalling transport module 50 is uploaded and being processed respectively away from status signal, if proximity state signal, so control the cancellation of described optical signal transmission 40 module upload new ambient light intensity and again upload former ambient light intensity, trigger the instruction of corresponding backlight intensity level setting according to former ambient light intensity; If away from status signal, so control described optical signal transmission module 40 and upload new ambient light intensity, and trigger the instruction of corresponding backlight intensity level setting according to this new ambient light intensity;
Backlight intensity adjustment module 70, for receiving the backlight intensity level setting instruction that described control module 60 triggers, and adjusts accordingly according to the backlight intensity grade of this instruction to mobile terminal screen.
As a kind of preferred version, described proximity transducer 40 is infrared ray proximity transducer, its inside comprises an infrared transmitting tube and an infrared receiving tube, when shelter is close to proximity transducer, described infrared receiving tube just can receive the infrared ray reflected through shelter, and shelter is more close to described proximity transducer, the infra-red intensity so reflected is larger, it is be in close to light well state that this proximity transducer detects block material, and the process be still in away from light well state is as follows:
If when the intensity that infrared receiving tube receives infrared external reflection is more than or equal to setting threshold, judge that shelter is close to light well state; If when the intensity that infrared receiving tube receives infrared external reflection is less than or equal to setting threshold, judge that shelter is away from light well state.
Certainly, in actual application, the proximity transducer of described proximity transducer also linear proximity transducer, ultrasonic wave proximity transducer or other models.
Embodiment 3
Inventive embodiment 3 provides a kind of mobile terminal that accurately can regulate backlight intensity, this mobile terminal comprises the system of above-mentioned accurate adjustment backlight of mobile terminal intensity, can the method for a kind of accurate adjustment backlight of mobile terminal intensity corresponding to application of aforementioned, details, see the description of above-described embodiment 1 and embodiment 2, do not repeat them here.
It should be noted that in said system embodiment, included modules 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 module, 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 (7)
1. accurately regulate a method for backlight of mobile terminal intensity, it is characterized in that, the method comprises the following steps:
S1, when mobile terminal receives bright screen request, optical sensor gathers current ambient light intensity by light well, and the ambient light intensity collected is reported to application layer, after application layer receives ambient light intensity, regulate the backlight intensity grade of mobile terminal screen according to this ambient light intensity;
S2, when described optical sensor collect current ambient light intensity change time, first do not report the new ambient light intensity collected, first start proximity transducer, detecting shelter by proximity transducer is be in close to light well state, is still in away from light well state;
S3, when detect shelter be in close to light well state time, judge that current ambient light intensity does not change, maintain mobile terminal screen existing backlight intensity grade;
S4, when detect shelter be in away from light well state time, judge that current ambient light intensity changes, new ambient light intensity is reported to application layer, after application layer receives new ambient light intensity, readjust the backlight intensity grade of mobile terminal screen according to this new ambient light intensity;
Wherein, it is be in close to light well state that described proximity transducer detects shelter, and the step be still in away from light well state specifically comprises:
If proximity transducer detect the intensity of infrared external reflection be more than or equal to setting close to threshold value time, judge that shelter is in close to light well state; If proximity transducer detect the intensity of infrared external reflection be less than or equal to setting away from threshold value time, judge that shelter is in away from light well state.
2. the method for a kind of accurate adjustment backlight of mobile terminal intensity according to claim 1, is characterized in that: described step S3 specifically comprises:
S301, when proximity transducer detect shelter be in close to light well state time, by this proximity state signal reporting to application layer;
After S302, application layer receive this proximity state signal, judgement is that the luminous intensity causing entering described light well close to light well due to shelter reduces, and current ambient light intensity does not change, and cancels and reports new ambient light intensity;
S303, former ambient light intensity is reported to application layer again, after application layer receives identical ambient light intensity, maintains the existing backlight intensity grade of mobile terminal screen.
3. the method for accurate adjustment backlight of mobile terminal intensity according to claim 1, is characterized in that: described step S4 specifically comprises:
S401, when proximity transducer detect shelter be in away from light well state time, this is reported to application layer away from status signal;
S402, application layer receive this away from after status signal, judge that current ambient light intensity changes;
S403, new ambient light intensity is reported to application layer, after application layer receives new ambient light intensity, readjusts the backlight intensity grade of mobile terminal screen according to this new ambient light intensity.
4. the method for a kind of accurate adjustment backlight of mobile terminal intensity according to any one of claims 1 to 3, it is characterized in that: the corresponding relation having preset ambient light intensity and backlight intensity grade in mobile terminal, in the terminal built-in before the corresponding relation of described ambient light intensity and backlight intensity grade dispatches from the factory.
5. the method for a kind of accurate adjustment backlight of mobile terminal intensity according to claim 1, is characterized in that: described proximity transducer close to threshold value and in the terminal built-in before dispatching from the factory away from threshold value.
6. a system for the method for the accurate adjustment backlight of mobile terminal intensity according to any one of claim 1-5, is characterized in that: this system comprises:
Screen detection module, connects screen whether receive bright screen request for detecting mobile terminal;
Optical sensor, when described screen detection module detects bright screen request, automatically starts, gathers current ambient light intensity by the light well that mobile terminal is arranged;
Optical signal transmission module, uploads for the ambient light intensity collected by described optical sensor;
Proximity transducer, when described light sensors changes to current ambient light intensity, starts automatically, being be in close to light well state, being still in away from light well state for detecting shelter;
Position signalling transport module, for detecting the proximity state signal that obtains and uploading away from status signal by described proximity transducer;
Control module, the proximity state signal that described position signalling transport module is uploaded and being processed respectively away from status signal, if proximity state signal, so control the cancellation of described optical signal transmission module upload new ambient light intensity and again upload former ambient light intensity, trigger the instruction of corresponding backlight intensity level setting according to former ambient light intensity; If away from status signal, so control described optical signal transmission module and upload new ambient light intensity, and trigger the instruction of corresponding backlight intensity level setting according to this new ambient light intensity;
Backlight intensity adjustment module, for receiving the backlight intensity level setting instruction that described control module triggers, and adjusts accordingly according to the backlight intensity grade of this instruction to mobile terminal screen;
Wherein, described proximity transducer is infrared ray proximity transducer, its inside comprises an infrared transmitting tube and an infrared receiving tube, when shelter is close to proximity transducer, described infrared receiving tube just can receive the infrared ray reflected through shelter, and shelter is more close to described proximity transducer, and the infra-red intensity so reflected is larger, it is be in close to light well state that this proximity transducer detects shelter, and the process be still in away from light well state is as follows:
If when the intensity that infrared receiving tube receives infrared external reflection is more than or equal to setting threshold, judge that shelter is in close to light well state; If when the intensity that infrared receiving tube receives infrared external reflection is less than or equal to setting threshold, judge that shelter is in away from light well state.
7. accurately can regulate a mobile terminal for backlight intensity, it is characterized in that: comprise the system accurately regulating backlight of mobile terminal intensity as claimed in claim 6.
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| CN103179271A (en) * | 2013-02-28 | 2013-06-26 | 深圳市中兴移动通信有限公司 | Method and device for preventing misoperation of brightness adjustment to mobile terminal screen |
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| US8031164B2 (en) * | 2007-01-05 | 2011-10-04 | Apple Inc. | Backlight and ambient light sensor system |
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| CN103137099A (en) * | 2011-11-28 | 2013-06-05 | 联想(北京)有限公司 | Screen luminance adjustment method and electronic device based on ambient light detecting sensor |
| CN103165102A (en) * | 2011-12-09 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Display device and brightness adjustment method thereof |
| CN103050097A (en) * | 2013-01-21 | 2013-04-17 | 北京小米科技有限责任公司 | Method and device for regulating brightness of backlight lamp |
| CN103179271A (en) * | 2013-02-28 | 2013-06-26 | 深圳市中兴移动通信有限公司 | Method and device for preventing misoperation of brightness adjustment to mobile terminal screen |
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