CN102024429A - Screen brightness automatic adjustment system and method thereof - Google Patents
Screen brightness automatic adjustment system and method thereof Download PDFInfo
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Abstract
The invention discloses a screen brightness automatic adjustment system and a method thereof. In the system disclosed by the invention, a photosensitive module is used to sense a plurality of ambient light sources and generate a plurality of analog brightness values; a conversion module is used to covert each analog brightness value to a digital brightness value; a setting module is used to set a brightness value for a user according to each ambient light; a memory module is used to store each digital brightness value and each set brightness value; and a processing module is used to calculate a plurality of screen brightness values according to each digital brightness value and each set brightness value and store the screen brightness values in the memory module. A backlight control module is used to search one screen brightness value in the memory module automatically according to the current ambient light sources sensed by the photosensitive module to adjust the brightness of the screen backlight.
Description
Technical field
The invention relates to a kind of screen intensity automatic adjustment system and method thereof, but particularly relevant for a kind of light source of sensing context, with the screen intensity automatic adjustment system and the method thereof of the brightness of automatic adjustment screen backlight.
Background technology
At present, the handheld action communication device major part is the mode with fixed current, controls module backlight and pilot lamp brightness, watches screen content and operating handset so that the user to be provided.Yet when the outside was the situation of intense light source, the user often must remove to adjust drive current in manual mode, made that the content of display screen is comparatively clear.Similarly, under the lower situation of external light source,, tend to allow the user feel that the screen light source is too dazzling and uncomfortable if with origin operation Current Control display screen.And the user continues to operate under this kind pattern, and except meeting caused the unnecessary burden of human body, the power supply of mobile communication device itself also had too much consumption.
In order to improve the problem of display light source brightness value, and more press close to the demand in user's use, prior art exists many modes to solve relevant subject under discussion.One of them be by the user by the external control key, cooperate two pre-set values of defining to remove to judge whether to adjust ON/OFF or little bright state of keyboard back light and screen intensity.Yet the method only can reach saves electrical source consumption roughly, and fails to meet the demand of dynamic adjustment display brightness and ACTIVE CONTROL module backlight.
In addition, it is to utilize photograph module on the mobile phone to remove the brightness value of the present environment light source of sensing that a kind of prior art is arranged, and makes suitable adjustment for display brightness then.The method will be subject to quality, sensitometric characteristic and the position of photograph module on mobile communication device of the sensor of photograph module own in practical application.Therefore, utilize the mobile communication device of the method the photograph module must be put at grade, and mobile communication device itself then to possess the use of just can arranging in pairs or groups of photograph module.The more important thing is, by opening the purpose that design concept that the photograph module removes to adjust backlight illumination again can't reach effective saving electrical source consumption and effectively adjust module backlight.In comparison, the power consumption of its system will may bring unnecessary power consumption because start the photograph module, make mobile communication device more not do on the contrary under the pattern of brightness adjustment and also want power consumption many.
In addition, the notion that again another prior art is arranged and proposed is ordered a scope table (for example four-stage) certainly for utilizing sensor institute inductive light intensity value, according to the retaking of a year or grade value of sensor the display brightness of module backlight is done corresponding adjustment again.Though the method can reach the purpose from the display brightness of environment light source regulation and control movingly, but owing to be to utilize the mode of simulating signal to regulate and control display brightness, so can't make periodically optimization regulation and control at display brightness, be easy to generate the situation of brightness flicker, may increase the visual puzzlement of user on the contrary.
Therefore, the invention provides a kind of screen intensity automatic adjustment system and method thereof, to address the above problem.
Summary of the invention
Because the problem that above-mentioned known technology exists, a wherein purpose of the present invention is providing a kind of screen intensity automatic adjustment system and method thereof exactly, mainly be to adjust screen intensity automatically via sensing context light source, the user can be known watch screen and do not feel dazzling, and can solve the problem of screen backlight power consumption.
According to purpose of the present invention, a kind of screen intensity automatic adjustment system is proposed, be applicable to handheld electronic device, it comprises a sensitization module, one conversion module, one sets module, one memory module, one handles a module and a backlight control module, the a plurality of environment light sources of sensitization module sensing, and produce an analoging brightness value respectively according to each environment light source, the conversion module connects the sensitization module, to receive each analoging brightness value, and each analoging brightness value is converted to a digital brightness value respectively, setting module provides the user to set brightness value respectively according to each environment light source, each digital brightness value of memory module stores reaches respectively sets brightness value, handle module according to each digital brightness value and respectively set brightness value and calculate a plurality of screen intensity values, and each screen intensity value is stored in the memory module, the backlight control module hunts out a wherein screen intensity value according to the present environment light source of sensing module sensing automatically in the memory module, to adjust the brightness of screen backlight.
Preferably, sensitization module sensitive context light source, and environment light source is converted to an aanalogvoltage, the corresponding analoging brightness value of this aanalogvoltage.
Preferably, the conversion module is converted to a digital voltage in order to the aanalogvoltage that the sensitization module is produced, the corresponding digital brightness value of digital voltage.
Preferably, set module and be connected with the backlight control module, set module user's setting brightness value is provided, with the voltage swing of control backlight control module, to adjust the bright-dark degree of screen backlight via handling module.
Preferably, the conversion module is connected with the backlight control module via handling module, and the voltage swing of each digital brightness value control backlight control module is to adjust the bright-dark degree of screen backlight.
Preferably, the sensitization module be photoresistance, photoelectricity diode, photoelectricity electric crystal, photoelectric tube or photoelectricity integrated circuit (Integrated Circuit, IC).
Preferably, the conversion module be an analog-digital converter (Analog-to-Digital Converter, ADC).
Preferably, portable electric device be mobile phone or individual action assistant (Personal Digital Assistant, PDA).
According to purpose of the present invention, reintroduce a kind of screen intensity automatic adjusting method, be applicable to handheld electronic device.At first, via a plurality of environment light sources of a sensitization module sensing, and produce an analoging brightness value respectively according to each environment light source.By each analoging brightness value of a modulus of conversion group of received, and each analoging brightness value is converted to a digital brightness value respectively.Setting module via one provides the user to set brightness value respectively according to each environment light source.Remember each digital brightness value of module stores and respectively set brightness value via one.Utilize one to handle module according to each digital brightness value and respectively set brightness value and calculate a plurality of screen intensity values, and each screen intensity value is stored in the memory module.At last, provide a backlight control module, in the memory module, hunt out a wherein screen intensity value automatically, to adjust the brightness of screen backlight according to the present environment light source of sensing module sensing.
From the above, screen intensity automatic adjustment system of the present invention and method thereof, it can have one or more following advantage:
(1) this screen intensity automatic adjustment system and method thereof can write down user's brightness of adaptable screen backlight under various environment light sources, when the user is arranged in wherein an environment light source, the screen intensity value that native system is write down before can going to search, automatically adjust the brightness of screen backlight, the user can be known view and admire screen and do not hinder eye.
(2) this screen intensity automatic adjustment system and method thereof can be adjusted the optimal brightness of screen automatically according to present environment light source, to reduce power consumption, can increase stand-by time.
(3) the brightness value institute computing set of the brightness value that senses of this screen intensity automatic adjustment system and method utilization thereof and user and the record screen intensity value of getting up, can adjust to the mode of the screen intensity that the user likes most quicker and accurately automatically, allow the user needn't be after sensing brightness value at every turn, because of not being own adaptable brightness, also need manually to set again brightness.
Description of drawings
Fig. 1 is the block diagram of screen intensity automatic adjustment system of the present invention and method thereof;
Fig. 2 is the process flow diagram of screen intensity automatic adjusting method of the present invention and method thereof;
Fig. 3 is the process flow diagram of first embodiment of screen intensity automatic adjusting method of the present invention and method thereof;
Fig. 4 is the process flow diagram of second embodiment of screen intensity automatic adjusting method of the present invention and method thereof;
Fig. 5 is the process flow diagram of the 3rd embodiment of screen intensity automatic adjusting method of the present invention and method thereof; And
Fig. 6 is the synoptic diagram of the 4th embodiment of screen intensity automatic adjustment system of the present invention and method thereof.
Among the figure:
1: the screen intensity automatic adjustment system
11: the sensitization module
12: the conversion module
13: set module
14: the memory module
15: handle module
16: the backlight control module
2: portable electric device
3: sensing element
4: operating key
5: screen
S21-S26, S31-S35, S41-S42, S51-S52: step
Embodiment
See also Fig. 1, it is the block diagram of screen intensity automatic adjustment system of the present invention.Among the figure, screen intensity automatic adjustment system 1 of the present invention is applicable to handheld electronic device 2.Screen intensity automatic adjustment system 1 comprises a sensitization module 11, a conversion module 12, is set module 13, a memory module 14, a processing module 15 and a backlight control module 16.Sensitization module 11 is to be used for a plurality of environment light sources of sensing, and produces an analoging brightness value respectively according to each environment light source.Conversion module 12 can connect sensitization module 11, receiving each analoging brightness value, and each analoging brightness value is converted to a digital brightness value respectively.Setting module 13 provides the user and sets brightness value respectively according to each environment light source.Memory module 14 is to be used for storing each digital brightness value and respectively to set brightness value.To handle module 15 be according to each digital brightness value and respectively set brightness value calculates a plurality of screen intensity values, and each screen intensity value is stored in memory module 14.Backlight control module 16 can hunt out a wherein screen intensity value automatically according to the present environment light source of sensing module 11 sensings in memory module 14, to adjust the brightness of screen backlight.
Wherein, portable electric device 2 can be a mobile phone or individual action assistant (Personal Digital Assistant, PDA).Sensitization module 11 can be photoresistance, photoelectricity diode, photoelectricity electric crystal, photoelectric tube or a photoelectricity integrated circuit (Integrated Circuit, IC).And the conversion module 12 can be an analog-digital converter (Analog-to-Digital Converter, ADC).Sensitization module 11 is converted to an aanalogvoltage with environment light source behind the sensitive context light source, this aanalogvoltage is corresponding analoging brightness value.And conversion module 12 is converted to a digital voltage in order to the aanalogvoltage that sensitization module 11 is produced, the corresponding digital brightness value of digital voltage.
Wherein, setting module 13 can be connected with backlight control module 16 via handling module 15, sets module 13 user's setting brightness value can be provided, with the voltage swing of control backlight control module 16, to adjust the brightness of screen backlight.And conversion module 12 can be connected with backlight control module 16 via handling module 15, can be via the voltage swing of each digital brightness value control backlight control module, to adjust the brightness of screen backlight.
See also Fig. 2, it is the process flow diagram of screen intensity automatic adjusting method of the present invention.The steps include: S21:, and produce an analoging brightness value respectively according to each environment light source via a plurality of environment light sources of a sensitization module sensing; S22:, and each analoging brightness value is converted to a digital brightness value respectively by each analoging brightness value of a modulus of conversion group of received; S23: setting module via one provides the user to set brightness value respectively according to each environment light source; S24: remember each digital brightness value of module stores and respectively set brightness value via one; S25: utilize one to handle module according to each digital brightness value and respectively set brightness value and calculate a plurality of screen intensity values, and each screen intensity value is stored in the memory module; And S26: provide a backlight control module according to the present environment light source of sensing module sensing, in the memory module, hunt out a wherein screen intensity value automatically, to adjust the brightness of screen backlight.
Wherein, backlight control module of the present invention can directly be adjusted the brightness of screen backlight via the present environment light source of sensitization module sensing.The backlight control module also can be adjusted the brightness of screen backlight via the setting brightness value that the user manually sets.
See also Fig. 3, it is the process flow diagram of first embodiment of screen intensity automatic adjustment system of the present invention and method thereof.The steps include:
S31: the brightness value under the various environment of sensing of going ahead of the rest.We utilize native system various light sources of sensing under different environment earlier, have in for example dark fully environment, the dark in the environment of light, overcast and rainy, the fine room of not turning on light or under the sun, via obtaining a plurality of different ambient brightness value after the opto-electronic conversion, and write down these brightness values;
S32: the brightness value of user's manual setting screen under various environment.Next the user can adjust the brightness that oneself can see and not hinder the screen of eyes clearly, and native system can write down the various setting brightness values that the user adjusted under various environment (as the described environment of S31 step);
S33: analyze each ambient brightness value and each setting brightness value, to calculate the brightness value of various screen the bests.Via S31 and resulting ambient brightness value of S32 step and setting brightness value, native system can go to analyze these two kinds of values of computing, producing the user under various environment, the screen optimal brightness value of receptible screen intensity, and various screen optimal brightness value records are got off;
S34:, go to hunt out a screen optimal brightness value of originally calculating according to the light source of present environment.When the user opens screen intensity of the present invention when adjusting function automatically, promptly can environment light source according to the present place of user under, hunt out the screen optimal brightness value of this environment light source of correspondence; And
S35: the backlight control module goes to adjust the brightness of screen backlight automatically through screen optimal brightness value thus.
See also Fig. 4, it is the process flow diagram of second embodiment of screen intensity automatic adjustment system of the present invention and method thereof.The steps include:
S41: the brightness value under the present environment of sensing.Native system can sense an ambient brightness value according to the environment at the present place of user; And
S42: the backlight control module goes to adjust the brightness of screen backlight automatically via the ambient brightness value that senses.
Can be learnt by second embodiment, sense ambient brightness value as native system, and the user does not remove the setting brightness value of setting screen again, backlight control module of the present invention can directly go to adjust the brightness of screen backlight automatically via the ambient brightness value that senses.
See also Fig. 5, it is the process flow diagram of the 3rd embodiment of screen intensity automatic adjustment system of the present invention and method thereof.The steps include:
S51: the brightness value of the manual setting screen of user; And
S52: the setting brightness value that the backlight control module is manually set via the user goes to adjust the brightness of screen backlight.
Can learn that by the 3rd embodiment when not sensing ambient brightness value as native system, can allow the brightness value of the manual setting screen of user, the backlight control module then can be via setting the brightness that brightness value go to adjust screen backlight.Also or when native system receives ambient brightness value, or when hunting out a screen optimal brightness value from system, the user can manually set the brightness of the screen that oneself adapts to most again.
See also Fig. 6, it is the synoptic diagram of the 4th embodiment of screen intensity automatic adjustment system of the present invention and method thereof.This figure is the mobile phone that is equiped with this screen intensity automatic adjustment system of giving an example.Among the figure, sensing element 3 can be used to the sensitive context light source.4 brightness that can provide the user to be used for manual setting screen 5 of operating key.The memory module of this mobile phone inside has stored each resultant ambient brightness value of the various environment light sources of sensing element 3 sensings, and the user respectively sets brightness value via what operating key 4 was set under various environment light sources.And the processing module of this mobile phone inside can and be set brightness value according to these a little ambient brightness value and calculate a plurality of screen optimal brightness values and be stored in the memory module.When the user opens after screen intensity adjusts function automatically, native system can begin the present environment light source of sensing user, and hunt out a screen optimal brightness value in memory in the module, and adjust the brightness of screen 5 automatically via the backlight control module according to this environment light source.Can't adapt to the brightness of screen 5 as the user, can go to adjust via operating key 4 again.
In the 4th embodiment, if mobile phone does not store each screen optimal brightness value through computing earlier, the ambient brightness value that native system can obtain via the present environment light source of direct sensing element 3 sensings is adjusted the brightness of screen 5 automatically.Can't adapt to the brightness of screen 5 as the user, can go to adjust via operating key 4 again.
In the 4th embodiment, if mobile phone stores each screen optimal brightness value through computing earlier, and sensing element 5 is when losing effectiveness and can't sense ambient brightness value, and the user can directly go to adjust the brightness of screen 5 via operating key 4.
Comprehensively above-mentioned, screen intensity automatic adjustment system of the present invention and method thereof can be adjusted the brightness of screen backlight automatically according to present environment light source, the user can be known view and admire screen and do not hinder eye, and can reduce power consumption to increase stand-by time.Moreover the mode of the screen intensity value that brightness value institute computing that brightness value that the native system utilization senses and user set and record get up can be adjusted to the screen intensity that the user likes most quicker and accurately automatically.
But above-mentioned embodiment is exemplary, is to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (16)
1. a screen intensity automatic adjustment system is applicable to handheld electronic device, it is characterized in that: described system comprises:
One sensitization module, a plurality of environment light sources of its sensing, and produce an analoging brightness value respectively according to each described environment light source;
One conversion module, it connects described sensitization module, receiving each described analoging brightness value, and each described analoging brightness value is converted to a digital brightness value respectively;
One sets module, and it provides the user to set brightness value respectively according to each described environment light source;
One memory module, it stores each described digital brightness value and each described setting brightness value;
One handles module, and it calculates a plurality of screen intensity values according to each described digital brightness value and each described setting brightness value, and each described screen intensity value is stored in described memory module; And
One backlight control module, it hunts out a wherein described screen intensity value automatically according to the present described environment light source of described sensing module sensing in described memory module, to adjust the brightness of screen backlight.
2. screen intensity automatic adjustment system as claimed in claim 1 is characterized in that: the described environment light source of described sensitization module sensing, and described environment light source is converted to an aanalogvoltage, the corresponding described analoging brightness value of described aanalogvoltage.
3. screen intensity automatic adjustment system as claimed in claim 2 is characterized in that: described conversion module is converted to a digital voltage in order to the described aanalogvoltage that described sensitization module is produced, the corresponding described digital brightness value of described digital voltage.
4. screen intensity automatic adjustment system as claimed in claim 1, it is characterized in that: described setting module is connected with described backlight control module via described processing module, described setting module provides the user to set described setting brightness value, to control the voltage swing of described backlight control module, to adjust the brightness of screen backlight.
5. screen intensity automatic adjustment system as claimed in claim 1, it is characterized in that: described conversion module is connected with described backlight control module via described processing module, each described digital brightness value is controlled the voltage swing of described backlight control module, to adjust the brightness of screen backlight.
6. screen intensity automatic adjustment system as claimed in claim 1 is characterized in that: described sensitization module is included as photoresistance, photoelectricity diode, photoelectricity electric crystal, photoelectric tube or photoelectricity integrated circuit.
7. screen intensity automatic adjustment system as claimed in claim 1 is characterized in that: described conversion module is included as an analog-digital converter.
8. screen intensity automatic adjustment system as claimed in claim 1 is characterized in that: described portable electric device is included as mobile phone or individual action assistant.
9. a screen intensity automatic adjusting method is applicable to handheld electronic device, it is characterized in that: described method comprises the following step:
Via a plurality of environment light sources of a sensitization module sensing, and produce an analoging brightness value respectively according to each described environment light source;
By each described analoging brightness value of a modulus of conversion group of received, and each described analoging brightness value is converted to a digital brightness value respectively;
Setting module via one provides the user to set brightness value respectively according to each described environment light source;
Via memory each described digital brightness value of module stores and each described setting brightness value;
Utilize a processing module to calculate a plurality of screen intensity values, and each described screen intensity value is stored in described memory module according to each described digital brightness value and each described setting brightness value; And
Provide a backlight control module according to the present described environment light source of described sensing module sensing, in described memory module, hunt out a wherein described screen intensity value automatically, to adjust the brightness of screen backlight.
10. screen intensity automatic adjusting method as claimed in claim 9 is characterized in that:
The described environment light source of described sensitization module sensing, and described environment light source is converted to an aanalogvoltage, the corresponding described analoging brightness value of described aanalogvoltage.
11. screen intensity automatic adjusting method as claimed in claim 10 is characterized in that: described conversion module is converted to a digital voltage in order to the described aanalogvoltage that described sensitization module is produced, the corresponding described digital brightness value of described digital voltage.
12. screen intensity automatic adjusting method as claimed in claim 9, it is characterized in that: described setting module is connected with described backlight control module via described processing module, described setting module provides the user to set described setting brightness value, to control the voltage swing of described backlight control module, to adjust the brightness of screen backlight.
13. screen intensity automatic adjusting method as claimed in claim 9, it is characterized in that: described conversion module is connected with described backlight control module via described processing module, each described digital brightness value is controlled the voltage swing of described backlight control module, to adjust the brightness of screen backlight.
14. screen intensity automatic adjusting method as claimed in claim 9 is characterized in that: described sensitization module is included as photoresistance, photoelectricity diode, photoelectricity electric crystal, photoelectric tube or photoelectricity integrated circuit.
15. screen intensity automatic adjusting method as claimed in claim 9 is characterized in that: described conversion module is included as an analog-digital converter.
16. screen intensity automatic adjusting method as claimed in claim 9 is characterized in that: described portable electric device is included as mobile phone or individual action assistant.
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| CN105632459A (en) * | 2016-03-28 | 2016-06-01 | 山东超越数控电子有限公司 | Computer display screen brightness adaptive adjustment method |
| CN106225920B (en) * | 2016-08-08 | 2018-07-17 | Tcl移动通信科技（宁波）有限公司 | A kind of environment light detection method and system based on mobile terminal |
| CN106225920A (en) * | 2016-08-08 | 2016-12-14 | Tcl移动通信科技（宁波）有限公司 | A kind of ambient light detection method based on mobile terminal and system |
| CN106357925A (en) * | 2016-10-31 | 2017-01-25 | 广东欧珀移动通信有限公司 | Method, device and terminal for switching screen brightness adjusting modes |
| CN109509438A (en) * | 2018-12-28 | 2019-03-22 | 惠科股份有限公司 | Backlight drive component, backlight module and display device |
| CN110060623A (en) * | 2019-04-30 | 2019-07-26 | 嘉兴钛众电子科技有限公司 | A kind of adjusting method of screen intensity |
| CN113903314A (en) * | 2021-10-18 | 2022-01-07 | 安徽亿普拉斯科技有限公司 | Liquid crystal display screen based on microcontroller and having brightness adjusting function |
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