CN105895057A - Backlight regulating method and device, and terminal equipment - Google Patents
Backlight regulating method and device, and terminal equipment Download PDFInfo
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- CN105895057A CN105895057A CN201610447256.6A CN201610447256A CN105895057A CN 105895057 A CN105895057 A CN 105895057A CN 201610447256 A CN201610447256 A CN 201610447256A CN 105895057 A CN105895057 A CN 105895057A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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Abstract
The invention discloses a backlight regulating method, a backlight regulating device and terminal equipment. The method comprises the following steps: acquiring an intensity value of current ambient light which is detected by a light intensity sensor in the terminal equipment; setting a threshold value, which is used for determining whether the terminal equipment is sheltered, of a proximity sensor in the terminal equipment according to the intensity value, wherein the set threshold value is in direct proportion to the intensity value; comparing the light intensity acquired by the proximity sensor with the threshold value, and determining whether the terminal equipment is sheltered according to a comparison result; when the terminal equipment is determined not to be sheltered, keeping a backlight regulating function of the terminal equipment in an on-state. According to the scheme, the backlight regulating function of the terminal equipment is improved, and the adaptability of backlight regulation is improved.
Description
Technical field
The present embodiments relate to computer technology, particularly relate to a kind of backlight adjusting method, device and terminal
Equipment.
Background technology
Backlight has been widely used in screen display technology as a kind of lighting system.Existing terminal unit
Mostly possess the automatic regulation function of backlight illumination, i.e. terminal unit by self integrated light sensors
Current ambient light intensity, the corresponding different backlight level of different light intensities, and then screen intensity is carried out
It is adjusted so that screen intensity and ambient light adapt.Terminal unit can by being automatically adjusted screen backlight
With when extraneous dark, reduce screen intensity to avoid human eye is produced stimulating, and at ambient relatively
Bright, can automatically increase screen intensity and make screen can clearly indicate content, human eye viewing can be improved
Comfort level, reasonably protects vision.
Proximity transducer is similarly in terminal unit conventional sensing device, and its principle is: according to receive
Infra-red intensity judges whether terminal unit is blocked, when proximity transducer detects that terminal unit is blocked
Time, the automatic regulation function of backlight will lose efficacy, i.e. terminal unit is not compromised by it and is blocked and causes
Backlight automatic regulation function is taked after ambient light change.When the infrared ray in environment is stronger when, close
Sensor can judge that terminal unit is in the state of being blocked, and then producing terminal unit, to cannot be carried out backlight automatic
The problem of regulation.
Summary of the invention
The present invention provides a kind of backlight adjusting method, device and terminal unit, to prevent due to proximity transducer
Interference cause the backlight invalid problem of regulation, improve the backlight regulatory function of terminal unit, add the back of the body
The adaptability of light regulation.
First aspect, embodiments provides a kind of backlight adjusting method, including:
Obtain the intensity level of the current environment light that optical sensor detects in terminal unit；
Size according to described intensity level arranges in described terminal unit proximity transducer for judging described terminal
Whether equipment is blocked used threshold value, wherein, and the size of the described threshold value of setting and described intensity level
Size is directly proportional；
Size and the described threshold value of the light intensity obtained by described proximity transducer compare, according to comparing
Result determines whether described terminal unit is blocked；
When determining that described terminal unit is not blocked, the backlight regulatory function of described terminal unit is kept to be in
Opening.
Second aspect, the embodiment of the present invention additionally provides a kind of backlight adjusting means, including:
Environmental light intensity acquisition module, for obtaining the current environment light that optical sensor in terminal unit detects
Intensity level；
Threshold setting module, for arranging in described terminal unit close to sensing according to the size of described intensity level
Device is for judging whether described terminal unit is blocked used threshold value, wherein, the described threshold value of setting
Size is directly proportional to the size of described intensity level；
Threshold value comparison module, for the size of light intensity obtained by described proximity transducer and described threshold value
Compare, determine whether described terminal unit is blocked according to comparative result；
Backlight processing module, for when determining that described terminal unit is not blocked, keeps described terminal unit
Backlight regulatory function be in opening.
The third aspect, the embodiment of the present invention additionally provides a kind of terminal unit, and described terminal unit is integrated with
State the device of description.
The different environmental light intensity angle value accommodation proximity transducer that the present invention gets according to terminal unit
Judging whether the threshold value being blocked, terminal sets to prevent owing to ambient light intensity is excessive, proximity transducer being judged
The standby occlusion state that is in turn results in the problem that backlight regulation is invalid, improves the backlight regulation merit of terminal unit
Can, add the adaptability of backlight regulation.
Accompanying drawing explanation
Fig. 1 is the flow chart of the backlight adjusting method that the embodiment of the present invention one provides；
Fig. 2 is the flow chart of the backlight adjusting method that the embodiment of the present invention two provides；
Fig. 3 is the flow chart of the backlight adjusting method that the embodiment of the present invention three provides；
Fig. 4 is the structural representation of the backlight adjusting means that the embodiment of the present invention four provides.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this
Specific embodiment described by place is used only for explaining the present invention, rather than limitation of the invention.The most also need
It is noted that for the ease of describing, accompanying drawing illustrate only part related to the present invention and not all knot
Structure.
Embodiment one
The flow chart of the backlight adjusting method that Fig. 1 provides for the embodiment of the present invention one, the present embodiment is applicable to
Being automatically adjusted the situation of screen backlight in terminal unit, the method can be by terminal unit such as smart mobile phone, flat
Plate computer performs, and specifically includes following steps:
The intensity level of the current environment light that optical sensor detects in step 101, acquisition terminal unit.
Terminal unit has been generally integrated various kinds of sensors such as acceleration transducer, gyroscope, gravity sensor
Deng to realize diversified function.Wherein, optical sensor can be used for its local environment of terminal unit perception
Under the intensity level of ambient light.Concrete, the intensity level of the ambient light collected is passed through light by optical sensor
Intensity level is converted to magnitude of voltage by electricity conversion, then this magnitude of voltage is converted to 0～2V or 4～20mA, according to turning
What the size of the value after changing was corresponding obtains light intensity value.Wherein, the intensity level of ambient light represents lighting level
Size.As: summer, intensity of illumination was about 60,000～100,000 lux (light intensity lists under sunlight direct irradiation
Position), do not have the outdoor of the sun to be about 0.1 ten thousand～10,000 lux, summer, bright and clear indoor were about 100～550lux,
Night is about 0.2lux under full moon.It is current that this step obtains that optical sensor in terminal unit detects in real time
The intensity level of ambient light.
Step 102, size according to described intensity level arrange in described terminal unit proximity transducer for sentencing
Whether disconnected described terminal unit is blocked used threshold value.
Wherein, the size of the described threshold value of setting is directly proportional to the size of described intensity level.I.e. this intensity level is more
Big this threshold value corresponding also increases, if intensity level reduces, this threshold value reduces the most accordingly.Wherein, close to sensing
Device is another kind of conventional sensing equipment in terminal unit, and its Cleaning Principle is the red of the reflection by receiving
The intensity of outside line comes whether perception is in the state of being blocked, and the infra-red intensity i.e. received then is regarded as relatively by force
Terminal unit is in occlusion state.In concrete judge process, by the threshold value of a systemic presupposition as sentencing
Disconnected standard, in prior art, the size of this threshold value is changeless.When the intensity of ambient light is stronger, connect
Nearly sensor acquisition to light intensity also can strengthen, if this threshold value takes fixed threshold, the most obviously can cause terminal
Equipment makes proximity transducer judge under strong light environment, and terminal unit is in the state of being blocked, and then backlight tune
Joint function is unavailable.In this step, this threshold value strains mutually according to the size of the environmental light intensity angle value got
Change.
Step 103, the size of the light intensity obtained by described proximity transducer and described threshold value compare,
Determine whether described terminal unit is blocked according to comparative result.
Wherein, the intensity of its light received of proximity transducer Real-time Collection, sentence according to this intensity size
Whether disconnected terminal unit is blocked.In this step, the size of the light intensity that proximity transducer is obtained and step
The threshold value arranged in rapid 102 compares, and determines whether terminal unit is blocked according to comparative result, due to
This threshold value changes according to the size of ambient light intensity, therefore the threshold value used when comparing in this step is in change
In.
Step 104, when determining that described terminal unit is not blocked, keep the backlight of described terminal unit to adjust
Joint function is in opening.
Exemplary, terminal unit is when ambient light intensity is stronger, by backlight regulatory function to improve screen
Brightness so that screen display content becomes apparent from；Terminal unit, when ambient light intensity is more weak, passes through backlight
Regulatory function adaptability reduces screen intensity to protect eyes.When determining that terminal unit is not blocked, keep
The backlight regulatory function of terminal unit is in opening, and when terminal unit is blocked, backlight regulatory function is lost
Effect.
The technical scheme of the present embodiment, the different environmental light intensity angle value adaptability got according to terminal unit
Adjust the threshold value that proximity transducer judges whether to be blocked, prevent from making owing to ambient light intensity is excessive close to biography
Sensor judges that terminal unit is in occlusion state and in turn results in the problem that backlight regulation is invalid, improves terminal and sets
Standby backlight regulatory function, adds the adaptability of backlight regulation.
Embodiment two
The flow chart of the backlight adjusting method that Fig. 2 provides for the embodiment of the present invention two, the present embodiment is in embodiment
On the basis of one, give a kind of scheme being preferable to provide threshold value, specifically include:
The intensity level of the current environment light that optical sensor detects in step 201, acquisition terminal unit.
Step 202, judge that whether the size of described intensity level presets adjusted value less than first, judge described
When intensity level presets adjusted value less than first, arrange in described terminal unit according to the size of described intensity level and connect
Nearly sensor is for judging whether described terminal unit is blocked used threshold value.
Wherein, this first preset adjusted value exemplary can be that 8000lux, i.e. ambient light intensity are exceeding
Already under the strongest strong light environment during 8000lux, the light intensity value that now proximity transducer gets
Already close to saturation, great threshold value proximity transducer is i.e. set and all can judge that terminal unit is in
Be blocked state, therefore in this step, is provided with one first and presets and adjust to, big for according to intensity level
The little proximity transducer that arranges in terminal unit is for judging whether described terminal unit is blocked used threshold value
, the intensity level size of ambient light is prejudged before, adjust judging that intensity level is preset less than first
During value, according to the size of described intensity level, proximity transducer is set in described terminal unit for judging described end
Whether end equipment is blocked used threshold value.
Step 203, the size of the light intensity obtained by described proximity transducer and described threshold value compare,
Determine whether described terminal unit is blocked according to comparative result.
Step 204, when determining that described terminal unit is not blocked, keep the backlight of described terminal unit to adjust
Joint function is in opening.
The technical scheme of the present embodiment, uses arranging proximity transducer in terminal unit according to the size of intensity level
In judging whether terminal unit is blocked before used threshold value, it is judged that the size of described intensity level is the least
Adjusted value is preset in first, if presetting adjusted value to arrange this threshold value less than first further according to the size of intensity level,
Optimize the plan of establishment of threshold value so that it is more conform to the concrete scene in terminal unit, improve the back of the body simultaneously
The efficiency of light regulation.
On the basis of each embodiment above-mentioned, also include: judging that described intensity level is preset not less than first
During adjusted value, described proximity transducer is set and cannot trigger described terminal unit and be in the state being blocked.As
Described in before, when environmental light intensity angle value is excessive, proximity transducer will judge that terminal unit is in always and be blocked
State and then backlight regulatory function was lost efficacy, in this programme, presets more than or equal to first in ambient light intensity values
During adjusted value, it is positioned proximate to sensor and cannot be in the state being blocked by triggering terminal equipment, and then keep the back of the body
Light regulation is effectively.
Embodiment three
The flow chart of the backlight adjusting method that Fig. 3 provides for the embodiment of the present invention three, the present embodiment above-mentioned respectively
On the basis of embodiment, give a kind of scheme being preferable to provide threshold value, specifically include:
The intensity level of the current environment light that optical sensor detects in step 301, acquisition terminal unit.
Step 302, judge that whether the size of described intensity level presets adjusted value more than second, judge described
When intensity level presets adjusted value more than second, arrange in described terminal unit according to the size of described intensity level and connect
Nearly sensor is for judging whether described terminal unit is blocked used threshold value.
Wherein, second preset adjusted value and preset adjusted value less than first.Exemplary, this second default adjustment
Value is 3000lux, and when environmental light intensity angle value is less than 3000 it can be assumed that ambient light is not strong, it is close
Sensor is affected less by ambient light light intensity, the most now this threshold value can not be carried out adaptability setting.
Step 303, the size of the light intensity obtained by described proximity transducer and described threshold value compare,
Determine whether described terminal unit is blocked according to comparative result.
Step 304, when determining that described terminal unit is not blocked, keep the backlight of described terminal unit to adjust
Joint function is in opening.
The technical scheme of the present embodiment, uses arranging proximity transducer in terminal unit according to the size of intensity level
In judging whether terminal unit is blocked before used threshold value, adjust judging that intensity level is preset more than second
During whole value, further according to the size of intensity level, proximity transducer is set in terminal unit for judging that described terminal sets
Standby the used threshold value that whether is blocked, optimizes the plan of establishment of threshold value so that it is more conform to terminal unit
In concrete scene, improve simultaneously backlight regulation efficiency.
On the basis of each embodiment above-mentioned, also include: judging that described intensity level is not more than second and presets
During adjusted value, default number is used to be used for judging that described terminal unit is as proximity transducer in terminal unit
No the used threshold value that is blocked.When intensity level no more than second means the strong of ambient light when presetting adjusted value
Spend less on the impact of proximity transducer, can ignore, therefore this programme uses the default threshold of proximity transducer,
Reduce the complexity that program is run.
On the basis of each embodiment above-mentioned, arrange in described terminal unit according to the size of described intensity level
Proximity transducer is for judging that described terminal unit the used threshold value that whether is blocked includes: according to described by force
The size of the intensity level preserved in the size of angle value and data base and the corresponding relation of threshold value, arrange described terminal
In equipment, proximity transducer is for judging whether described terminal unit is blocked used threshold value.In this programme,
Environmental light intensity angle value and corresponding proximity transducer threshold value are pre-stored in data base, when needs are to threshold value
When being configured, directly reading data from data base, improve threshold value arranges efficiency.
On the basis of each embodiment above-mentioned, arrange in described terminal unit according to the size of described intensity level
Proximity transducer is for judging that described terminal unit the used threshold value that whether is blocked includes: according to described by force
The size of angle value and the linear relationship of the intensity level preset with threshold value, arranged in described terminal unit close to sensing
Device is for judging whether described terminal unit is blocked used threshold value.In this programme, proximity transducer
The light intensity value linear correlation of threshold value and environment, the change precision that improve threshold value makes the backlight merit of terminal unit
Can regulate more accurate.
Embodiment four
The structural representation of the backlight adjusting means that Fig. 4 provides for the embodiment of the present invention four, concrete structure is as follows:
Environmental light intensity acquisition module 1, for obtaining the current environment that optical sensor in terminal unit detects
The intensity level of light；
Threshold setting module 2, for arranging in described terminal unit close to passing according to the size of described intensity level
Sensor is for judging whether described terminal unit is blocked used threshold value, wherein, the described threshold value of setting
Size be directly proportional to the size of described intensity level；
Threshold value comparison module 3, for the size of light intensity obtained by described proximity transducer and described threshold
Value compares, and determines whether described terminal unit is blocked according to comparative result；
Backlight processing module 4, for when determining that described terminal unit is not blocked, keeps described terminal to set
Standby backlight regulatory function is in opening.
The technical scheme of the present embodiment, the different environmental light intensity angle value adaptability got according to terminal unit
Adjust the threshold value that proximity transducer judges whether to be blocked, prevent from making owing to ambient light intensity is excessive close to biography
Sensor judges that terminal unit is in occlusion state and in turn results in the problem that backlight regulation is invalid, improves terminal and sets
Standby backlight regulatory function, adds the adaptability of backlight regulation.
On the basis of technique scheme, also include: environmental light intensity judge module, be used for judging described by force
Whether the size of angle value presets adjusted value less than first；Described threshold setting module is additionally operable to: described in judging
When intensity level presets adjusted value less than first, arrange in described terminal unit according to the size of described intensity level and connect
Nearly sensor is for judging whether described terminal unit is blocked used threshold value.
On the basis of technique scheme, described threshold setting module is additionally operable to: judging described intensity level
When presetting adjusted value not less than first, arrange described proximity transducer cannot trigger described terminal unit be in by
The state blocked.
On the basis of technique scheme, described environmental light intensity judge module is additionally operable to: judge described intensity
Whether the size of value presets adjusted value more than second, wherein second presets adjusted value and presets adjusted value less than first；
Described threshold setting module is additionally operable to: when judging that described intensity level presets adjusted value more than second, according to institute
State the size of intensity level arrange in described terminal unit proximity transducer for judge described terminal unit whether by
Block used threshold value.
On the basis of technique scheme, described threshold setting module is additionally operable to: judging described intensity level
It is not more than second when presetting adjusted value, uses default number to be used for judging as proximity transducer in terminal unit
Whether described terminal unit is blocked used threshold value.
On the basis of technique scheme, described threshold setting module specifically for: according to described intensity level
Size and data base in the size of intensity level that preserves and the corresponding relation of threshold value, described terminal unit is set
Middle proximity transducer is for judging whether described terminal unit is blocked used threshold value.
On the basis of technique scheme, described threshold setting module specifically for: according to described intensity level
Size and the linear relationship of intensity level and threshold value preset, proximity transducer in described terminal unit is set and uses
In judging whether described terminal unit is blocked used threshold value.
The said goods can perform the method that any embodiment of the present invention is provided, and possesses the corresponding merit of execution method
Can module and beneficial effect.
Embodiment five
The present embodiment provides a kind of terminal unit on the basis of the various embodiments described above, and this terminal unit is integrated
Device described in embodiment four.Exemplary, this terminal unit by operating system, CPU, ROM,
The parts such as RAM, touch screen form.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
Row various obvious changes, readjust and substitute without departing from protection scope of the present invention.Therefore, though
So by above example, the present invention is described in further detail, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, it is also possible to include other Equivalent embodiments more,
And the scope of the present invention is determined by scope of the appended claims.
Claims (15)
1. a backlight adjusting method, it is characterised in that including:
Obtain the intensity level of the current environment light that optical sensor detects in terminal unit；
Size according to described intensity level arranges in described terminal unit proximity transducer for judging described terminal
Whether equipment is blocked used threshold value, wherein, and the size of the described threshold value of setting and described intensity level
Size is directly proportional；
Size and the described threshold value of the light intensity obtained by described proximity transducer compare, according to comparing
Result determines whether described terminal unit is blocked；
When determining that described terminal unit is not blocked, the backlight regulatory function of described terminal unit is kept to be in
Opening.
Method the most according to claim 1, it is characterised in that setting according to the size of described intensity level
Put in described terminal unit proximity transducer for judging whether described terminal unit is blocked used threshold value
Before, also include:
Judge whether the size of described intensity level presets adjusted value less than first；
It is described for judging that the described size according to described intensity level arranges proximity transducer in described terminal unit
Whether terminal unit is blocked used threshold value, including:
When judging that described intensity level presets adjusted value less than first, institute is set according to the size of described intensity level
State in terminal unit proximity transducer for judging whether described terminal unit is blocked used threshold value.
Method the most according to claim 2, it is characterised in that also include:
When judging that described intensity level presets adjusted value not less than first, arranging described proximity transducer cannot touch
Sending out terminal unit described is in the state being blocked.
Method the most according to claim 2, it is characterised in that setting according to the size of described intensity level
Put in described terminal unit proximity transducer for judging whether described terminal unit is blocked used threshold value
Before, also include:
Judging that whether the size of described intensity level presets adjusted value more than second, wherein second to preset adjusted value little
Adjusted value is preset in first；
It is described for judging that the described size according to described intensity level arranges proximity transducer in described terminal unit
Whether terminal unit is blocked used threshold value, including:
When judging that described intensity level presets adjusted value more than second, institute is set according to the size of described intensity level
State in terminal unit proximity transducer for judging whether described terminal unit is blocked used threshold value.
Method the most according to claim 4, it is characterised in that also include:
Judge described intensity level be not more than second preset adjusted value time, use default number as terminal unit
Middle proximity transducer is for judging whether described terminal unit is blocked used threshold value.
Method the most according to claim 1, it is characterised in that arrange according to the size of described intensity level
In described terminal unit, proximity transducer is for judging the threshold value bag whether described terminal unit is blocked used
Include:
The size of the intensity level preserved in size according to described intensity level and data base and the corresponding pass of threshold value
System, arranges proximity transducer in described terminal unit and is used for judging whether described terminal unit is blocked
Threshold value.
Method the most according to claim 1, it is characterised in that arrange according to the size of described intensity level
In described terminal unit, proximity transducer is for judging the threshold value bag whether described terminal unit is blocked used
Include:
Size according to described intensity level and the linear relationship of the intensity level preset with threshold value, arrange described terminal
In equipment, proximity transducer is for judging whether described terminal unit is blocked used threshold value.
8. a backlight adjusting means, it is characterised in that including:
Environmental light intensity acquisition module, for obtaining the current environment light that optical sensor in terminal unit detects
Intensity level；
Threshold setting module, for arranging in described terminal unit close to sensing according to the size of described intensity level
Device is for judging whether described terminal unit is blocked used threshold value, wherein, the described threshold value of setting
Size is directly proportional to the size of described intensity level；
Threshold value comparison module, for the size of light intensity obtained by described proximity transducer and described threshold value
Compare, determine whether described terminal unit is blocked according to comparative result；
Backlight processing module, for when determining that described terminal unit is not blocked, keeps described terminal unit
Backlight regulatory function be in opening.
Device the most according to claim 8, it is characterised in that also include:
Environmental light intensity judge module, for judging whether the size of described intensity level presets adjusted value less than first；
Described threshold setting module is additionally operable to:
When judging that described intensity level presets adjusted value less than first, institute is set according to the size of described intensity level
State in terminal unit proximity transducer for judging whether described terminal unit is blocked used threshold value.
Device the most according to claim 9, it is characterised in that described threshold setting module is additionally operable to:
When judging that described intensity level presets adjusted value not less than first, arranging described proximity transducer cannot touch
Sending out terminal unit described is in the state being blocked.
11. devices according to claim 9, it is characterised in that described environmental light intensity judge module is also
For:
Judging that whether the size of described intensity level presets adjusted value more than second, wherein second to preset adjusted value little
Adjusted value is preset in first；
Described threshold setting module is additionally operable to:
When judging that described intensity level presets adjusted value more than second, institute is set according to the size of described intensity level
State in terminal unit proximity transducer for judging whether described terminal unit is blocked used threshold value.
12. devices according to claim 11, it is characterised in that described threshold setting module is additionally operable to:
Judge described intensity level be not more than second preset adjusted value time, use default number as terminal unit
Middle proximity transducer is for judging whether described terminal unit is blocked used threshold value.
13. devices according to claim 8, it is characterised in that described threshold setting module is specifically used
In:
The size of the intensity level preserved in size according to described intensity level and data base and the corresponding pass of threshold value
System, arranges proximity transducer in described terminal unit and is used for judging whether described terminal unit is blocked
Threshold value.
14. devices according to claim 8, it is characterised in that described threshold setting module is specifically used
In:
Size according to described intensity level and the linear relationship of the intensity level preset with threshold value, arrange described terminal
In equipment, proximity transducer is for judging whether described terminal unit is blocked used threshold value.
15. 1 kinds of terminal units, it is characterised in that described terminal unit is integrated with as in claim 8-14
Device described in any one.
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| CN108632469A (en) * | 2018-05-15 | 2018-10-09 | 维沃移动通信有限公司 | The position indicating method and mobile terminal of mobile terminal |
| CN110187518A (en) * | 2019-04-15 | 2019-08-30 | 北京艾索健康科技有限公司 | A kind of identification at the moment weak device of environmental light intensity |
| CN113011216A (en) * | 2019-12-19 | 2021-06-22 | 合肥君正科技有限公司 | Multi-classification threshold self-adaptive occlusion detection method |
| CN113011216B (en) * | 2019-12-19 | 2024-04-02 | 合肥君正科技有限公司 | Multi-classification threshold self-adaptive shielding detection method |
| CN114283753A (en) * | 2022-01-04 | 2022-04-05 | 海信视像科技股份有限公司 | Display device and control method of screen backlight brightness |
| CN114283753B (en) * | 2022-01-04 | 2023-01-20 | 海信视像科技股份有限公司 | Display device and control method of screen backlight brightness |
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| CN105895057B (en) | 2018-11-20 |
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