CN109300438A - A kind of method and apparatus adjusting screen intensity - Google Patents
A kind of method and apparatus adjusting screen intensity Download PDFInfo
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- CN109300438A CN109300438A CN201811340389.9A CN201811340389A CN109300438A CN 109300438 A CN109300438 A CN 109300438A CN 201811340389 A CN201811340389 A CN 201811340389A CN 109300438 A CN109300438 A CN 109300438A
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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
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- Liquid Crystal Display Device Control (AREA)
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Abstract
The invention discloses a kind of methods and apparatus for adjusting screen intensity; it is related to display screen field of display technology; it is lower to solve the sensitivity in low light condition of light sensation chip; lead to the photosensitive sensors light value very little in dark; the inappropriate problem of backlight screen of adjustment, the method for the present invention comprise determining that the white light channel register value of photosensitive sensors and the normal environment optical channel register value of the photosensitive sensors；The photosensitive sensors light value for adjusting backlight screen intensity is determined according to the white light channel register value and the normal environment optical channel register value；Screen intensity is adjusted according to the determining photosensitive sensors light value; since the present invention is to determine photosensitive sensors light value according to white light channel register value and normal environment optical channel register value; determining photosensitive sensors light value is closer to the ambient light value of detected environment; the sensitivity of light sensation chip is improved, the screen intensity of adjustment is more suitable.
Description
Technical field
The present invention relates to display screen field of display technology, in particular to a kind of method and apparatus for adjusting screen intensity.
Background technique
The light sensation chip in mobile terminal includes photosensitive sensors and range sensor at present, and the principle of range sensor is
It is got on object using infrared lamp transmitting light, according to the infrared light value judgment object distance for being reflected back range sensor, but ring
If the infrared light in the light of border can adjust the distance when very strong, sensor generates interference.
Current mobile phone can modulate LCD (Liquid Crystal Display, liquid crystal display by photosensitive sensors
Device) automatic backlight, according to the light intensity of locating varying environment, so that the brightness and contrast of screen is automatically adjusted, in light
Darker environment can turn down brightness and contrast, and brightness and contrast can be turned up in the stronger environment of light, to be suitble to human eye to see
The function of seeing.Since the normal environment light register of light sensation chip is in order to promote the susceptibility of visible spectrum, to difference
The light of wave-length coverage has different degrees of decaying, so normal environment optical channel register value can reduce, there are under low light condition
The lower phenomenon of sensitivity, such as cm36686 chip, when ambient light value is 10lux (lux) left and right, photosensitive sensors light
Value causes already close to 0 in dark, and the backlight screen of adjustment is also very dark.
In conclusion the sensitivity in low light condition of light sensation chip is lower at present, cause in the propagated sensation sense of dark time
The backlight screen of device light value very little, adjustment is improper.
Summary of the invention
The present invention provides a kind of method and apparatus for adjusting screen intensity, to solve light sensation core existing in the prior art
Piece sensitivity in low light condition is lower, leads to the photosensitive sensors light value very little in dark, the backlight screen of adjustment is not
Suitable problem.
In a first aspect, a kind of method for adjusting screen intensity provided in an embodiment of the present invention includes:
The normal environment optical channel of the white light channel register value and the photosensitive sensors that determine photosensitive sensors is deposited
Device value；
It is determined according to the white light channel register value and the normal environment optical channel register value for adjusting backlight
The photosensitive sensors light value of screen intensity；
Screen intensity is adjusted according to the determining photosensitive sensors light value.
The above method directly determines photosensitive sensors light according to normal environment optical channel register value compared with the prior art
For value, it is used to adjust with what normal environment optical channel register value determined according to the white light channel register value of photosensitive sensors
The photosensitive sensors light value of backlight screen intensity is closer to the ambient light value of detected environment, improves the spirit of light sensation chip
Sensitivity, so that the photosensitive sensors light value determined in dark is than the light determining according only to normal environment optical channel register
Propagated sensation sensor light value is closer to the ambient light value for being really, the screen intensity of adjustment is more suitable.
In one possible implementation, described logical according to the white light channel register value and the normal environment light
Road register value determines the photosensitive sensors light value for adjusting backlight screen intensity, comprising:
The white light channel register value that decaying is converted to conversion is carried out to the white light channel register value；
It is determined according to the white light channel register value of the conversion and the normal environment optical channel register value for adjusting
The photosensitive sensors light value of whole backlight screen intensity.
The above method, since white light channel is not filtered processing, the effect of detection light is not so good as normal environment optical channel, because
This dialogue optical channel register value carries out the white light channel register value that decaying is converted to conversion, and logical according to the white light of conversion
Road register value and normal environment optical channel register value determine the photosensitive sensors light value for adjusting backlight screen intensity, make
It obtains the white light channel register value converted under low light condition and is greater than normal environment optical channel register value, turn under intense light conditions
The white light channel register value changed is less than normal light channel register value, is determining the light sensation biography for adjusting backlight screen intensity
It then can be according to the white light channel register value and normal environment optical channel register value of conversion, so that the use determined when sensor light value
True ambient light value is closer in the photosensitive sensors light value of adjustment backlight screen intensity.
In one possible implementation, the white light channel register value of the conversion meets following equation:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is logical for the white light
Road register value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
In one possible implementation, the white light channel register value according to conversion and the normal environment light
Channel register value determines the photosensitive sensors light value for adjusting backlight screen intensity, comprising:
Judge whether the white light channel register value of the conversion is greater than the normal environment optical channel register value；
If the white light channel register value of the conversion is greater than the normal environment optical channel register value, according to
The white light channel register value of conversion determines the photosensitive sensors light value for adjusting backlight screen intensity；
If the white light channel register value of the conversion is not more than the normal environment optical channel register value, according to institute
It states normal environment optical channel register value and determines photosensitive sensors light value for adjusting backlight screen intensity.
The above method, since white light channel register value is generally bigger than normal environment light register value, white light channel exists
Remolding sensitivity normal environment optical channel is stronger when dim light, and the white light channel register value of conversion may be implemented to turn under low light condition
The white light channel register value changed is greater than normal environment optical channel register value, the white light channel deposit converted under intense light conditions
Device value is less than normal light channel register value, by the white light channel register value of conversion and normal environment optical channel register value into
Capable to compare, the bigger conduct photosensitive sensors light value of selector channel register value, this light value detects true closer to needs
Ambient light value.
In one possible implementation, described to be determined according to the white light channel register value of the conversion for adjusting
The photosensitive sensors light value of backlight screen intensity, comprising:
Using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity；
It is described to determine that the light sensation for adjusting backlight screen intensity senses according to the normal environment optical channel register value
Device light value, comprising:
Using the product of the normal environment optical channel register value and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity.
The above method, using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as
For adjust backlight screen intensity photosensitive sensors light value either by the normal environment optical channel register value with it is described
For the product of photosensitive sensors resolution ratio as the photosensitive sensors light value for adjusting backlight screen intensity, photosensitive sensors light is logical
The product of road register value and resolution ratio is closer to true ambient light value, i.e., photosensitive sensors determining by the above method
Light value is conveniently adjusted backlight screen intensity closer to true ambient light value.
Second aspect, a kind of equipment adjusting screen intensity provided in an embodiment of the present invention includes: that at least one processing is single
Member and at least one storage unit, wherein the storage unit is stored with program code, when said program code is by the place
When managing unit execution, so that the processing unit executes following process:
The normal environment optical channel of the white light channel register value and the photosensitive sensors that determine photosensitive sensors is deposited
Device value；
It is determined according to the white light channel register value and the normal environment optical channel register value for adjusting backlight
The photosensitive sensors light value of screen intensity；
Screen intensity is adjusted according to the determining photosensitive sensors light value.
In one possible implementation, the processing unit is specifically used for:
The white light channel register value that decaying is converted to conversion is carried out to the white light channel register value；
It is determined according to the white light channel register value of the conversion and the normal environment optical channel register value for adjusting
The photosensitive sensors light value of whole backlight screen intensity.
In one possible implementation, the white light channel register value of the conversion meets following equation:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is logical for the white light
Road register value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
In one possible implementation, the processing unit is specifically used for:
Judge whether the white light channel register value of the conversion is greater than the normal environment optical channel register value；
If the white light channel register value of the conversion is greater than the normal environment optical channel register value, according to
The white light channel register value of conversion determines the photosensitive sensors light value for adjusting backlight screen intensity；
If the white light channel register value of the conversion is not more than the normal environment optical channel register value, according to institute
It states normal environment optical channel register value and determines photosensitive sensors light value for adjusting backlight screen intensity.
In one possible implementation, the processing unit is specifically used for:
Using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity；Or
Using the product of the normal environment optical channel register value and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity.
The third aspect, the embodiment of the present invention also provide a kind of equipment for adjusting screen intensity, which includes first determining
Module, the second determining module and processing module:
First determining module, white light channel register value and the photosensitive sensors for determining photosensitive sensors are just
Normal environment optical channel register value；
Second determining module, for according to the white light channel register value and the normal environment optical channel register value
Determine the photosensitive sensors light value for adjusting backlight screen intensity；
Processing module, for adjusting screen intensity according to the determining photosensitive sensors light value.
In one possible implementation, second determining module is specifically used for:
The white light channel register value that decaying is converted to conversion is carried out to the white light channel register value；
It is determined according to the white light channel register value of the conversion and the normal environment optical channel register value for adjusting
The photosensitive sensors light value of whole backlight screen intensity.
In one possible implementation, the white light channel register value of the conversion meets following equation:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is logical for the white light
Road register value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
In one possible implementation, second determining module is specifically used for:
Judge whether the white light channel register value of the conversion is greater than the normal environment optical channel register value；
If the white light channel register value of the conversion is greater than the normal environment optical channel register value, according to
The white light channel register value of conversion determines the photosensitive sensors light value for adjusting backlight screen intensity；
If the white light channel register value of the conversion is not more than the normal environment optical channel register value, according to institute
It states normal environment optical channel register value and determines photosensitive sensors light value for adjusting backlight screen intensity.
In one possible implementation, second determining module is specifically used for:
Using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity；Or
Using the product of the normal environment optical channel register value and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity.
Fourth aspect, the application also provide a kind of computer storage medium, are stored thereon with computer program, the program quilt
The step of first aspect the method is realized when processing unit executes.
In addition, second aspect technical effect brought by any implementation into fourth aspect can be found in first aspect
Technical effect brought by middle difference implementation, details are not described herein again.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of method schematic diagram for adjusting screen intensity provided in an embodiment of the present invention；
Fig. 2 be a kind of white light channel register value provided in an embodiment of the present invention, normal environment optical channel register value with
The schematic diagram of ambient light value variation；
Fig. 3 A is the first white light channel register value provided in an embodiment of the present invention, normal environment optical channel register value
The schematic diagram changed with the white light channel register value of conversion with ambient light value；
Fig. 3 B is second of white light channel register value provided in an embodiment of the present invention, normal environment optical channel register value
The schematic diagram changed with the white light channel register value of conversion with ambient light value；
Fig. 3 C is the third white light channel register value provided in an embodiment of the present invention, normal environment optical channel register value
The schematic diagram changed with the white light channel register value of conversion with ambient light value；
Fig. 4 is a kind of schematic diagram that photosensitive sensors light value changes with ambient light value provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram that another photosensitive sensors light value provided in an embodiment of the present invention changes with ambient light value；
Fig. 6 is a kind of equipment schematic diagram for adjusting screen intensity provided in an embodiment of the present invention；
Fig. 7 is the equipment schematic diagram of another adjustment screen intensity provided in an embodiment of the present invention；
Fig. 8 is a kind of complete method flow chart for adjusting screen intensity provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The some words occurred in text are explained below:
1, term "and/or" in the embodiment of the present invention describes the incidence relation of affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Character "/" one
As indicate forward-backward correlation object be a kind of "or" relationship.
2, in the embodiment of the present invention term " ambient light value " finger ring border light intensity of illumination, i.e., receiving on unit area can
Light-exposed energy, abbreviation illumination, unit lux (Lux or Lx).
3, term " photosensitive sensors " refers to and can perceive ambient light situation in the embodiment of the present invention, and informs processing chip
Automatically adjust the sensor of display backlight brightness.
4, term " register value " refers to received visible light on unit area that optical channel detects in the embodiment of the present invention
Energy, unit lux (Lux or Lx).
The application scenarios of description of the embodiment of the present invention are the technical solutions in order to more clearly illustrate the embodiment of the present invention,
The restriction for technical solution provided in an embodiment of the present invention is not constituted, those of ordinary skill in the art are it is found that with newly answering
With the appearance of scene, technical solution provided in an embodiment of the present invention is equally applicable for similar technical problem.Wherein, at this
In the description of invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Current most of mobile terminals all have the function of automatic backlight, i.e., with the function of intensity of illumination dynamic change backlight illumination
Can, when automatic backlight is adjusted, the stronger backlight of illumination then needs to adjust brighter, this just needs the intensity of illumination and back to environment light
Brightness establishes a mapping relations, carries out automatic backlight adjusting according to mapping relations.
When automatic backlight is adjusted, setting includes the back of intensity of illumination and backlight illumination mapping relations in the terminal
Light table of grading, mobile terminal carry out backlight adjusting according to backlight level table.And in backlight level table, it will be in brightness slider bar
Point is divided into setting number, backlight level is divided into 11 grades, each backlight level corresponds to an intensity of illumination range, often
The corresponding logic backlight intensity value of a backlight level, the i.e. corresponding logic backlight value of an intensity of illumination range.
But the normal environment optical channel register of the light sensation chip of some mobile terminals is in order to promote visible light model
The sensitivity enclosed has different degrees of decaying to the light of different wavelength range, so normal environment optical channel register value can subtract
Small, it to be 10lux or so in ambient light value that there are the lower phenomenons of sensitivity under low light condition, such as cm36686 light sensation chip
When, light sensation value causes already close to 0 in dark, and the backlight screen of adjustment is also very dark.
Therefore a kind of method and apparatus using white light channel auxiliary environment light detection of the embodiment of the present invention, may be implemented
Photosensitive sensors light value is determined according to the white light channel register value of conversion when low light environment, the light sensation determined in dark
Sensor light value is closer to very compared to only according to the photosensitive sensors light value that normal environment optical channel register value determines
Real ambient light value improves the sensitivity of light sensation chip so that the screen intensity adjusted in dark brightens.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
For above-mentioned scene, the embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
As shown in Figure 1, a kind of method of adjustment screen intensity of the embodiment of the present invention, specifically includes the following steps:
Step 100: determining the white light channel register value of photosensitive sensors and the normal environment light of the photosensitive sensors
Channel register value；
Step 101: being used for according to the white light channel register value and normal environment optical channel register value determination
Adjust the photosensitive sensors light value of backlight screen intensity；
Step 102: screen intensity is adjusted according to the determining photosensitive sensors light value.
Through the above scheme, do not filter processing in the white light channel of photosensitive sensors, and the effect of detection light is not as good as normal
Environment optical channel, and the normal optical channel of photosensitive sensors has carried out different degrees of decaying to the light of different wavelength range, because
This white light channel register value is greater than normal light channel register value, so that under low light condition, the sensitivity in white light channel
Be greater than normal environment optical channel, compared to directly determining photosensitive sensors light value according to normal environment optical channel register value and
Speech is used to adjust backlight according to what the white light channel register value of photosensitive sensors and normal environment optical channel register value determined
The photosensitive sensors light value of screen intensity is closer to the ambient light value of detected environment, improves the sensitive of light sensation chip
Degree, so that the photosensitive sensors light value determined in dark is than the light sensation determining according only to normal environment optical channel register
Sensor light value is closer to the ambient light value for being really, the screen intensity of adjustment is more suitable.
Current general light sensation chip includes photosensitive sensors and range sensor, and range sensor is by using infrared lamp
Transmitting light is got on object, and judgement is reflected back the infrared light value judgment object distance of range sensor.Infrared light in environment light
If the sensor that can adjust the distance when very strong generates interference, white light channel is weak to confirm that environment is adjusted the distance biography for detecting environmental light intensity
The influence of sensor, photosensitive sensors determine the light sensation for adjusting backlight screen intensity by normal environment optical channel register value
Sensor light value, but under low light condition, normal environment optical channel register sensitivity is low, so being adjusted in dark
Screen intensity it is also very dark.
In embodiments of the present invention, it is used for according to white light channel register value and the determination of normal environment optical channel register value
The photosensitive sensors light value of backlight screen intensity is adjusted, white light channel register does not carry out optical filtering processing, compared to normal ring
Border light register, the spectral region of detection is wider, and normal environment optical channel register is in order to promote the spirit of visible spectrum
Sensitivity has different degrees of decaying to the light of different wavelength range, so normal environment optical channel register value is than white light channel
Register light value is much smaller, but two channel register values are all with ambient light value linear change.
As shown in Fig. 2, determining normal environment optical channel register value with the change curve of ambient light value by detecting first
I.e. white light channel register value with ambient light value change curve, as shown in Figure 2, the corresponding white in same ambient light value
Channel data (white light channel register value) is greater than normal light data (normal environment optical channel register value),
And when ambient light value is within the scope of 0~10lux, normal light data (normal environment optical channel register value) is
0, i.e., when ambient light value is within the scope of 0~10lux, normal environment optical channel can't detect environment light, and white light channel is posted
Storage value can detecte environment light when ambient light value is within the scope of 0~10lux.
In embodiments of the present invention, white light channel register value is generally bigger than normal environment optical channel register value,
The sensitivity in white light channel is than normal environment optical channel high sensitivity under low light condition, optionally, posts the white light channel
Storage value carries out the white light channel register value that decaying is converted to conversion, is converted by following equation:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is logical for the white light
Road register value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
Specifically, as shown in Figure 2, when ambient light value is 10lux or so, normal light data (normal environment light
Channel register value) close to 0, such as can be using 10 ± 2lux as the switching threshold in white light channel and normal environment optical channel
Value, carries out decaying conversion by above-mentioned formula dialogue optical channel register value, decays by adjusting the first attenuation coefficient a and second
Coefficient b makes the friendship of white light channel register value change curve and normal environment optical channel register value change curve after conversion
The corresponding abscissa of point is as closely as possible to switching threshold, wherein the first attenuation coefficient a is bigger, switching threshold is bigger, and second declines
Subtract that coefficient b is bigger, and switching threshold is bigger.
When it is 1 that the first attenuation coefficient a, which is the 30, second decay coefficient b, by the white channel data's in Fig. 2
White_raw, a that value substitutes into above-mentioned formula take 30, dialogue optical channel register value white_raw to carry out decaying conversion and can obtain
The white convert data in white light channel register value white_convert, i.e. Fig. 3 A after conversion is (white after conversion
Optical channel register value), by Fig. 3 A it is found that the white light channel register value change curve after conversion is posted with normal environment optical channel
The corresponding abscissa of intersection point of storage value change curve is 35lux, i.e., in ambient light value within the scope of 0~35lux, after conversion
White light channel register value is greater than normal environment optical channel register value, white after conversion after ambient light value is more than 35lux
Optical channel register value is less than normal environment optical channel register value.
When it is 1 that the first attenuation coefficient a, which is the 10, second decay coefficient b, as shown in Figure 3B, the white light channel after conversion is posted
Storage value change curve abscissa corresponding with the intersection point of normal environment optical channel register value change curve is 18lux, that is, is existed
For ambient light value within the scope of 0~18lux, the white light channel register value after conversion is greater than normal environment optical channel register value,
After ambient light value is more than 18lux, the white light channel register value after conversion is less than normal environment optical channel register value.
When it is 1 that the first attenuation coefficient a, which is the 50, second decay coefficient b, as shown in Figure 3 C, the white light channel after conversion is posted
Storage value change curve abscissa corresponding with the intersection point of normal environment optical channel register value change curve is 48lux, that is, is existed
For ambient light value within the scope of 0~48lux, the white light channel register value after conversion is greater than normal environment optical channel register value,
After ambient light value is more than 48lux, the white light channel register value after conversion is less than normal environment optical channel register value.
It should be noted that dialogue optical channel register value cited in the embodiment of the present invention carries out the side of decaying conversion
Formula is merely illustrative, and the mode that any dialogue optical channel register value carries out decaying conversion is suitable for implementation of the present invention
Example.
Optionally, since the white light channel register value change curve after conversion becomes with normal environment optical channel register value
The intersection point for changing curve is switching threshold, is that the white light channel register value of conversion is logical greater than normal environment light before switching threshold
Road register value is that the white light channel register value converted is less than normal environment optical channel register value after switching threshold,
So bright for adjusting backlight screen according to the white light channel register value of conversion and the determination of normal environment optical channel register value
When the photosensitive sensors light value of degree, judge whether the white light channel register value of conversion is greater than normal environment optical channel register value
If the white light channel register value of conversion is greater than normal environment optical channel register value, according to the white light channel of conversion
Register value determines the photosensitive sensors light value for adjusting backlight screen intensity；If the white light channel register value of conversion is little
In normal environment optical channel register value, then determined according to normal environment optical channel register value for adjusting backlight screen intensity
Photosensitive sensors light value.
Optionally, the photosensitive sensors for adjusting backlight screen intensity are determined according to the white light channel register value of conversion
It is when light value, the white light channel register value of conversion and the product of photosensitive sensors resolution ratio is bright as being used to adjust backlight screen
The photosensitive sensors light value of degree；Determine that the light sensation for adjusting backlight screen intensity passes according to normal environment optical channel register value
When sensor light value, using the product of normal environment optical channel register value and photosensitive sensors resolution ratio as being used to adjust backlight screen
The photosensitive sensors light value of curtain brightness.
For example, determining the photosensitive sensors light value for adjusting backlight screen intensity by following equation:
Lux=max (white_convert, normal_raw) × res
Wherein, normal_raw is normal environment optical channel register value, and res is photosensitive sensors resolution ratio, white_
Convert is the white light channel register value after conversion, and lux is photosensitive sensors light value.White_ is taken by above-mentioned formula
The larger value of convert and normal_raw and the product of res are as the final optical flame detector light value for being used to adjust automatic backlight.
As shown in figure 4, the light sensation for being used to adjust backlight screen intensity determined according to normal environment optical channel register value
Sensor light value, if adjusting screen intensity according to the result of Fig. 4, when ambient light value is 15lux, corresponding light sensation sensing
Device light value is about 5lux, about according to the screen intensity of the corresponding relationship adjustment between photosensitive sensors light value range and backlight level
It is 5%.
The larger value of white light channel register value after normal environment optical channel register value and conversion is multiplied into light sensation sensing
Photosensitive sensors light value is obtained after device resolution ratio res, it is assumed that res 0.1, determining photosensitive sensors light value is with ambient light value
Conversion curve as shown in figure 5, as seen from the figure, determining photosensitive sensors light value is closer to very in embodiments of the present invention
Real ambient light value, when ambient light value is 15lux, corresponding photosensitive sensors light value is about 18lux, is sensed according to light sensation
The screen intensity of corresponding relationship adjustment between device light value range and backlight level is about 18%, is led to according only to normal environment light
The photosensitive sensors light value for adjusting backlight screen intensity that road register value determines simultaneously adjusts backlight screen intensity and compares,
It is also adjustable to more suitable brightness when ambient light is weaker.
Based on identical inventive concept, a kind of equipment for adjusting screen intensity is additionally provided in the embodiment of the present invention, due to
The equipment is the equipment in the method in the embodiment of the present invention, and the principle that the equipment solves the problems, such as is similar to this method,
Therefore the implementation of the equipment may refer to the implementation of method, and overlaps will not be repeated.
As shown in fig. 6, the embodiment of the present invention also provides a kind of equipment for adjusting screen intensity, which includes: at least one
A processing unit 600 and at least one storage unit 601, wherein the storage unit 601 is stored with program code, works as institute
When stating program code and being executed by the processing unit 600, so that the processing unit 600 executes following process:
Optionally, the processing unit 600 is specifically used for:
The normal environment optical channel of the white light channel register value and the photosensitive sensors that determine photosensitive sensors is deposited
Device value；
It is determined according to the white light channel register value and the normal environment optical channel register value for adjusting backlight
The photosensitive sensors light value of screen intensity；
Screen intensity is adjusted according to the determining photosensitive sensors light value.
Optionally, the processing unit 600 is specifically used for:
The white light channel register value that decaying is converted to conversion is carried out to the white light channel register value；
It is determined according to the white light channel register value of the conversion and the normal environment optical channel register value for adjusting
The photosensitive sensors light value of whole backlight screen intensity.
Optionally, the white light channel register value of the conversion meets following equation:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is logical for the white light
Road register value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
Optionally, the processing unit 600 is specifically used for:
Judge whether the white light channel register value of the conversion is greater than the normal environment optical channel register value；
If the white light channel register value of the conversion is greater than the normal environment optical channel register value, according to
The white light channel register value of conversion determines the photosensitive sensors light value for adjusting backlight screen intensity；
If the white light channel register value of the conversion is not more than the normal environment optical channel register value, according to institute
It states normal environment optical channel register value and determines photosensitive sensors light value for adjusting backlight screen intensity.
Optionally, the processing unit 600 is specifically used for:
Using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity；Or
Using the product of the normal environment optical channel register value and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity.
Based on identical inventive concept, a kind of equipment for adjusting screen intensity is additionally provided in the embodiment of the present invention, due to
The equipment is the equipment in the method in the embodiment of the present invention, and the principle that the equipment solves the problems, such as is similar to this method,
Therefore the implementation of the equipment may refer to the implementation of method, and overlaps will not be repeated.
As shown in fig. 7, the embodiment of the present invention also provides a kind of equipment for adjusting screen intensity, which includes: first true
Cover half block 700, the second determining module 701 and processing module 702:
First determining module 700: for determine photosensitive sensors white light channel register value and the photosensitive sensors
Normal environment optical channel register value；
Second determining module 701: for being deposited according to the white light channel register value and the normal environment optical channel
Device value determines the photosensitive sensors light value for adjusting backlight screen intensity；
Processing module 702: for adjusting screen intensity according to the determining photosensitive sensors light value.
Optionally, second determining module 701 is specifically used for:
The white light channel register value that decaying is converted to conversion is carried out to the white light channel register value；
It is determined according to the white light channel register value of the conversion and the normal environment optical channel register value for adjusting
The photosensitive sensors light value of whole backlight screen intensity.
Optionally, the white light channel register value of the conversion meets following equation:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is logical for the white light
Road register value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
Optionally, second determining module 701 is specifically used for:
Judge whether the white light channel register value of the conversion is greater than the normal environment optical channel register value；
If the white light channel register value of the conversion is greater than the normal environment optical channel register value, according to
The white light channel register value of conversion determines the photosensitive sensors light value for adjusting backlight screen intensity；
If the white light channel register value of the conversion is not more than the normal environment optical channel register value, according to institute
It states normal environment optical channel register value and determines photosensitive sensors light value for adjusting backlight screen intensity.
Optionally, second determining module 701 is specifically used for:
Using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity；Or
Using the product of the normal environment optical channel register value and the photosensitive sensors resolution ratio as being used to adjust
The photosensitive sensors light value of backlight screen intensity.
As shown in figure 8, a kind of complete method for adjusting screen intensity provided in an embodiment of the present invention includes:
Step 800, the ambient light value that current environment is detected by photosensitive sensors；
The normal environment optical channel of step 801, the white light channel register value for determining photosensitive sensors and photosensitive sensors
Register value；
Step 802, dialogue optical channel register value carry out the white light channel register value that decaying is converted to conversion；
Step 803 judges whether the white light channel register value of conversion is greater than normal environment optical channel register value, if
It is to then follow the steps 804, it is no to then follow the steps 805；
The product of the white light channel register value of conversion and photosensitive sensors resolution ratio is determined as being used to adjust by step 804
The photosensitive sensors light value of whole backlight screen intensity；
The product of normal environment optical channel register value and photosensitive sensors resolution ratio is determined as being used to adjust by step 805
The photosensitive sensors light value of whole backlight screen intensity；
Step 806 adjusts screen intensity according to determining photosensitive sensors light value.
The embodiment of the present invention also provides a kind of computer-readable non-volatile memory medium, including program code, when described
For program code when running on computing terminal, said program code is for making the computing terminal execute the embodiments of the present invention
The step of adjusting the method for screen intensity.
Above by reference to showing according to the method, apparatus (system) of the embodiment of the present application and/or the frame of computer program product
Figure and/or flow chart describe the application.It should be understood that can realize that block diagram and or flow chart is shown by computer program instructions
The combination of the block of a block and block diagram and or flow chart diagram for figure.These computer program instructions can be supplied to logical
With computer, the processor of special purpose computer and/or other programmable data processing units, to generate machine, so that via meter
The instruction that calculation machine processor and/or other programmable data processing units execute creates for realizing block diagram and or flow chart block
In specified function action method.
Correspondingly, the application can also be implemented with hardware and/or software (including firmware, resident software, microcode etc.).More
Further, the application can take computer usable or the shape of the computer program product on computer readable storage medium
Formula has the computer realized in the medium usable or computer readable program code, to be made by instruction execution system
It is used with or in conjunction with instruction execution system.In the present context, computer can be used or computer-readable medium can be with
It is arbitrary medium, may include, stores, communicates, transmits or transmit program, is made by instruction execution system, device or equipment
With, or instruction execution system, device or equipment is combined to use.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method for adjusting screen intensity, which is characterized in that this method comprises:
Determine the white light channel register value of photosensitive sensors and the normal environment optical channel register value of the photosensitive sensors；
It is determined according to the white light channel register value and the normal environment optical channel register value for adjusting backlight screen
The photosensitive sensors light value of brightness；
Screen intensity is adjusted according to the determining photosensitive sensors light value.
2. the method as described in claim 1, which is characterized in that described according to the white light channel register value and described normal
Environment optical channel register value determines the photosensitive sensors light value for adjusting backlight screen intensity, comprising:
The white light channel register value that decaying is converted to conversion is carried out to the white light channel register value；
It is determined according to the white light channel register value of the conversion and the normal environment optical channel register value for adjusting back
The photosensitive sensors light value of screen brightness.
3. method according to claim 2, which is characterized in that the white light channel register value of the conversion meets following public affairs
Formula:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is that the white light channel is posted
Storage value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
4. method according to claim 2, which is characterized in that the white light channel register value according to conversion and it is described just
Normal environment optical channel register value determines the photosensitive sensors light value for adjusting backlight screen intensity, comprising:
Judge whether the white light channel register value of the conversion is greater than the normal environment optical channel register value；
If the white light channel register value of the conversion is greater than the normal environment optical channel register value, according to the conversion
White light channel register value determine the photosensitive sensors light value for adjusting backlight screen intensity；
If the white light channel register value of the conversion be not more than the normal environment optical channel register value, according to it is described just
Normal environment optical channel register value determines the photosensitive sensors light value for adjusting backlight screen intensity.
5. method as claimed in claim 4, which is characterized in that described to be determined according to the white light channel register value of the conversion
For adjusting the photosensitive sensors light value of backlight screen intensity, comprising:
Using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as being used to adjust backlight
The photosensitive sensors light value of screen intensity；
The photosensitive sensors light determined according to the normal environment optical channel register value for adjusting backlight screen intensity
Value, comprising:
Using the product of the normal environment optical channel register value and the photosensitive sensors resolution ratio as being used to adjust backlight
The photosensitive sensors light value of screen intensity.
6. a kind of equipment for adjusting screen intensity, which is characterized in that the equipment includes: at least one processing unit and at least one
A storage unit, wherein the storage unit is stored with program code, when said program code is executed by the processing unit
When, so that the processing unit executes following process:
Determine the white light channel register value of photosensitive sensors and the normal environment optical channel register value of the photosensitive sensors；
It is determined according to the white light channel register value and the normal environment optical channel register value for adjusting backlight screen
The photosensitive sensors light value of brightness；
Screen intensity is adjusted according to the determining photosensitive sensors light value.
7. equipment as claimed in claim 6, which is characterized in that the processing unit is specifically used for:
The white light channel register value that decaying is converted to conversion is carried out to the white light channel register value；
It is determined according to the white light channel register value of the conversion and the normal environment optical channel register value for adjusting back
The photosensitive sensors light value of screen brightness.
8. equipment as claimed in claim 7, which is characterized in that the white light channel register value of the conversion meets following public affairs
Formula:
White_convert=(b-e(-a/white_raw))×white_raw
Wherein, white_convert is the white light channel register value of the conversion, and white_raw is that the white light channel is posted
Storage value, a are the first attenuation coefficient, and e is natural constant, and b is the second attenuation coefficient.
9. equipment as claimed in claim 7, which is characterized in that the processing unit is specifically used for:
Judge whether the white light channel register value of the conversion is greater than the normal environment optical channel register value；
If the white light channel register value of the conversion is greater than the normal environment optical channel register value, according to the conversion
White light channel register value determine the photosensitive sensors light value for adjusting backlight screen intensity；
If the white light channel register value of the conversion be not more than the normal environment optical channel register value, according to it is described just
Normal environment optical channel register value determines the photosensitive sensors light value for adjusting backlight screen intensity.
10. equipment as claimed in claim 9, which is characterized in that the processing unit is specifically used for:
Using the product of the white light channel register value of the conversion and the photosensitive sensors resolution ratio as being used to adjust backlight
The photosensitive sensors light value of screen intensity；Or
Using the product of the normal environment optical channel register value and the photosensitive sensors resolution ratio as being used to adjust backlight
The photosensitive sensors light value of screen intensity.
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| CN201811340389.9A CN109300438B (en) | 2018-11-12 | 2018-11-12 | Method and equipment for adjusting screen brightness |
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| CN201811340389.9A CN109300438B (en) | 2018-11-12 | 2018-11-12 | Method and equipment for adjusting screen brightness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113870773A (en) * | 2021-10-29 | 2021-12-31 | 卡莱特云科技股份有限公司 | Brightness compensation method, brightness compensation device and brightness compensation system of LED display screen |
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| CN102938247A (en) * | 2012-11-29 | 2013-02-20 | 广东欧珀移动通信有限公司 | Brightness adjusting method and device |
| CN105321480A (en) * | 2014-07-22 | 2016-02-10 | 宇龙计算机通信科技(深圳)有限公司 | LCD backlight adjusting method and device |
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| CN101645231A (en) * | 2009-04-02 | 2010-02-10 | 青岛海信电器股份有限公司 | Method and device for regulating back light brightness of display |
| CN102938247A (en) * | 2012-11-29 | 2013-02-20 | 广东欧珀移动通信有限公司 | Brightness adjusting method and device |
| CN105321480A (en) * | 2014-07-22 | 2016-02-10 | 宇龙计算机通信科技(深圳)有限公司 | LCD backlight adjusting method and device |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |