CN112449026A - Ambient light compensation method, ambient light compensation device, terminal and storage medium - Google Patents
Ambient light compensation method, ambient light compensation device, terminal and storage medium Download PDFInfo
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- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
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Abstract
The invention discloses an ambient light compensation method. The method comprises the following steps: acquiring a first light sensation value of the current environment through a light sensor; determining a light leakage value of the current display brightness of the display screen according to a pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen; and compensating the first light sensation value by adopting the light leakage value of the current display brightness of the display screen, and determining the compensated first light sensation value as the current ambient light brightness. Therefore, the light leakage value of the display screen is adopted to compensate the first light sensation value of the current environment detected by the light sensor, the interference of the light leakage of the display screen to the ambient light sensing can be reduced, and the accuracy of the ambient light sensing is correspondingly improved.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to an ambient light compensation method, an ambient light compensation device, a terminal, and a storage medium.
Background
At present, mobile terminals such as mobile phones detect ambient light brightness through a built-in light sensor, so as to adjust display brightness of a display screen of the mobile terminal in real time according to the ambient light brightness.
However, with the full-screen concept, the arrangement space of the components such as the light sensor inside the mobile terminal is more and more limited. Therefore, many mobile phones adopt a narrow slit design scheme, a Liquid Crystal Display (LCD) is very close to a light sensor under the scheme, and the light sensor can detect the light leaked from the LCD when detecting external ambient light because the backlight of the LCD is not totally closed, so that the accuracy of ambient light sensing is reduced, and the effect of subsequent automatic brightness adjustment of the LCD is influenced.
Disclosure of Invention
The invention provides an ambient light compensation method, an ambient light compensation device and a storage medium.
According to a first aspect of embodiments of the present invention, there is provided an ambient light compensation method, including:
acquiring a first light sensation value of the current environment through a light sensor;
determining a light leakage value of the current display brightness of the display screen according to a pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen;
and compensating the first light sensation value by adopting the light leakage value of the current display brightness of the display screen, and determining the compensated first light sensation value as the current ambient light brightness.
In one embodiment, establishing a corresponding relationship between the display brightness of the display screen and the light leakage value of the display screen includes:
detecting a first light leakage value of the display screen when the display screen displays a first display brightness;
detecting a second light leakage value of the display screen when the display screen displays a second display brightness;
and determining the corresponding relation according to the first display brightness, the first light leakage value, the second display brightness and the second light leakage value.
In one embodiment, the determining the corresponding relationship according to the first display brightness, the first light leakage value, the second display brightness, and the second light leakage value includes:
taking the first display brightness and the first light leakage value as a first fitting coordinate;
taking the second display brightness and the second light leakage value as a second fitting coordinate;
and fitting a linear equation to obtain a linear equation representing the corresponding relation based on the first fitting coordinate and the second fitting coordinate.
In one embodiment, the detecting a first light leakage value of the display screen when the display screen displays a first display brightness includes: placing the display screen with the first display brightness in a dark box environment, and detecting a first light leakage value of the display screen through the light sensor;
when the display screen displays the second display brightness, detecting a second light leakage value of the display screen, including: and placing the display screen with the second display brightness in a dark box environment, and detecting a second light leakage value of the display screen through the light sensor.
In one embodiment, the acquiring, by the light sensor, a first light sensation value of the current environment includes:
acquiring a first light sensitivity value of the current environment through an nth light sensing channel of the light sensor, wherein N is a positive integer smaller than N, N is the total number of the light sensing channels, and the wavelengths of light corresponding to different light sensing channels are different;
the determining the light leakage value of the current display brightness of the display screen according to the pre-established corresponding relationship between the display brightness of the display screen and the light leakage value of the display screen comprises the following steps:
determining the light leakage value of the current display brightness of the display screen in the nth photosensitive channel according to the corresponding relation between the display brightness of the display screen and the light leakage value of the nth photosensitive channel;
adopt the light leak value of the present display luminance of display screen compensates first light sense value, confirm the first light sense value after will compensating as current ambient light brightness, include:
and compensating the first light sensation value of the nth light sensing channel by using the light leakage value of the current display brightness of the display screen in the nth light sensing channel, and determining the compensated first light sensation value of the nth light sensing channel as the ambient light brightness of the current environment in the nth light sensing channel.
In one embodiment, the method further comprises:
and combining the respective corresponding environmental light brightness of the M compensated photosensitive channels into the current environmental light brightness according to a preset combination rule, wherein M is a positive integer less than or equal to N.
According to a second aspect of embodiments of the present invention, there is provided an ambient light compensation apparatus, including: an acquisition module, a first determination module and a compensation module, wherein,
the acquisition module is used for acquiring a first light sensation value of the current environment through the acquisition light sensor;
the first determining module is used for determining a light leakage value of the current display brightness of the display screen according to a pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen;
the compensation module is used for compensating the first light sensation value by adopting the light leakage value of the current display brightness of the display screen, and determining the compensated first light sensation value as the current ambient light brightness.
In one embodiment, the apparatus further comprises: the second determining module is used for determining the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen;
the second determining module is specifically configured to:
detecting a first light leakage value of the display screen when the display screen displays a first display brightness;
detecting a second light leakage value of the display screen when the display screen displays a second display brightness;
and determining the corresponding relation according to the first display brightness, the first light leakage value, the second display brightness and the second light leakage value.
In one embodiment, the second determining module includes: the first determining submodule is used for taking the first display brightness and the first light leakage value as a first fitting coordinate; taking the second display brightness and the second light leakage value as a second fitting coordinate; and fitting a linear equation to obtain a linear equation representing the corresponding relation based on the first fitting coordinate and the second fitting coordinate.
In one embodiment, the second determining module includes:
the first detection submodule is used for placing the display screen with the first display brightness in a dark box environment and detecting a first light leakage value of the display screen through the light sensor;
and the second detection submodule is used for placing the display screen with the second display brightness in a dark box environment and detecting a second light leakage value of the display screen through the light sensor.
In one embodiment, the obtaining module includes:
the acquisition submodule is used for acquiring a first light sensitivity value of the current environment through an nth light sensing channel of the light sensor, wherein N is a positive integer smaller than N, N is the total number of the light sensing channels, and the wavelengths of light rays corresponding to different light sensing channels are different;
the first determining module includes:
the second determining submodule is used for determining the light leakage value of the current display brightness of the display screen in the nth photosensitive channel according to the corresponding relation between the display brightness of the display screen and the light leakage value of the nth photosensitive channel;
the compensation module comprises:
and the compensation submodule is used for compensating the first light sensation value of the nth photosensitive channel by utilizing the light leakage value of the current display brightness of the display screen in the nth photosensitive channel, and determining the compensated first light sensation value of the nth photosensitive channel as the ambient light brightness of the current environment in the nth photosensitive channel.
In one embodiment, the apparatus further comprises:
and the combination module is used for combining the respective environment light brightness corresponding to the compensated M photosensitive channels into the current environment light brightness according to a preset combination rule, wherein M is a positive integer less than or equal to N.
According to a third aspect of the embodiments of the present invention, there is provided a terminal, including a processor, a memory, and an executable program stored on the memory and capable of being executed by the processor, wherein the processor executes the executable program to perform the steps of the ambient light compensation method according to the first aspect.
According to a fourth aspect of embodiments of the present invention, there is provided a storage medium having an executable program stored thereon, wherein the executable program, when executed by a processor, implements the steps of the ambient light compensation method of the first aspect.
The embodiment of the invention discloses an ambient light compensation method, an ambient light compensation device, a terminal and a storage medium;
acquiring a first light sensation value of the current environment through a light sensor; determining a light leakage value of the current display brightness of the display screen according to a pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen; and compensating the first light sensation value by adopting the light leakage value of the current display brightness of the display screen, and determining the compensated first light sensation value as the current ambient light brightness. The light leakage value of the display screen is adopted to compensate the first light sensation value of the current environment detected by the light sensor, so that the interference of the light leakage of the display screen on the ambient light sensing can be reduced, and the accuracy of the ambient light sensing is correspondingly improved. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow diagram illustrating a method of ambient light compensation in accordance with an exemplary embodiment;
FIG. 2 is a diagram illustrating display luminance and leakage light value correspondence for a display panel according to an exemplary embodiment;
FIG. 3 is a schematic flow chart diagram illustrating a method for testing a handset in accordance with an exemplary embodiment;
FIG. 4 is a block diagram illustrating an ambient light compensation device in accordance with an exemplary embodiment;
FIG. 5 is a block diagram illustrating another ambient light compensation device in accordance with an exemplary embodiment;
FIG. 6 is a block diagram illustrating yet another ambient light compensation device in accordance with an exemplary embodiment;
FIG. 7 is a block diagram illustrating yet another ambient light compensation device in accordance with an exemplary embodiment;
FIG. 8 is a block diagram illustrating yet another ambient light compensation device in accordance with an exemplary embodiment;
fig. 9 is a block diagram illustrating a structure of an apparatus for ambient light compensation according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used to describe various information in embodiments of the present invention, the information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The execution subject that this disclosed embodiment relates to includes but not limited to: mobile terminals such as mobile phones.
The application scenario of the embodiment of the disclosure is that in the process of realizing automatic adjustment of the brightness of the display screen by mobile terminals such as mobile phones, ambient light sensed by the light sensor is used as a reference. And if the ambient light brightness is higher, the brightness of the display screen is increased, and if the ambient light brightness is lower, the brightness of the display screen is correspondingly reduced. At present, many mobile phones adopt a narrow slit design scheme, the display screen is very close to the light sensor under the scheme, the backlight of the display screen is not totally closed, and the light sensor can receive light leaked from the backlight of the display screen while receiving external ambient light, so that the accuracy of ambient light sensing is reduced, and the automatic brightness adjustment effect of the subsequent display screen is influenced.
Fig. 1 is a flowchart illustrating a method for ambient light compensation according to an exemplary embodiment, where the method includes the following specific steps, as shown in fig. 1:
step 101: acquiring a first light sensation value of the current environment through a light sensor;
step 102: determining the light leakage value of the current display brightness of the display screen according to the pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen;
step 103: and compensating a first light sensation value by adopting the light leakage value of the display brightness of the current display screen, and determining the compensated first light sensation value as the current ambient light brightness.
The display screen may be an LCD display screen in a mobile terminal such as a mobile phone, and the light sensor may be a sensor inside the mobile terminal for detecting the ambient light brightness. The backlight of the LCD display screen in the mobile phone is not completely closed, so the light leakage is caused. The light leaking from the display screen may be irradiated onto the light sensor and sensed by the light sensor, and the light leaking portion of the display screen sensed by the light sensor is referred to as a light leakage value, which may be a light illumination value (Lux).
The light leakage value of the display screen sensed by the light sensor under different display brightness of the display screen can be measured in advance, and the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen is established by adopting a preset mode (such as fitting).
Because the performance parameters of the display screens adopted by different mobile terminals are different, and the display brightness and the light leakage value of the display screens are related to the performance parameters of the display screens, the corresponding relationship between the display brightness and the light leakage value among different display screens is different, so that in the pre-measurement stage, the corresponding relationship between the display brightness and the light leakage value of various display screens needs to be established according to the types of the display screens.
In the embodiment of the present disclosure, the display brightness of the different display screens may be a preset level of the display brightness corresponding to each of the different display screens. For example, the display brightness of the class a display screen may be set to 2048 levels, and the display screens may be set to be sequentially brightened from level 1 to level 2048. The display brightness and the light leakage value of the display screens at different levels can be sampled, and the corresponding relation between the display brightness and the light leakage value of the display screens at different levels can be fitted by adopting the modes of equation fitting and the like. Wherein, the equation fitting may be a curve equation fitting or a straight line equation fitting, and the curve equation may include: a rounded curve equation and/or a broken line equation.
The light leakage value of the display brightness of the current display screen can be determined through the corresponding relation between the display brightness of the display screen and the light leakage value. The display brightness of the current display screen can be set by a user or automatically set by a system in the mobile phone, and the display brightness of the current display screen can be read by a mobile phone processor and the like, and the light leakage value of the display brightness of the current display screen is determined.
The first light sensitivity value sensed by the light sensor can be compensated by adopting the light leakage value of the display brightness of the current display screen, and the compensated result is determined as the current environment light brightness. The processor in the mobile phone can read the first light sensation value sensed by the light sensor and compensate the first light sensation value sensed by the light sensor.
Preferably, because the ambient light and the light leakage of the display screen are superposed and irradiated on the light sensor, the light sensation value sensed by the light sensor is greater than the actual ambient light brightness, and therefore, the first light sensation value sensed by the light sensor is compensated by the light leakage value of the display brightness of the current display screen, for example, the actual ambient light brightness is obtained by subtracting the light leakage value of the display screen from the first light sensation value sensed by the light sensor.
Therefore, the light sensation value of the current environment measured by the light sensor is compensated according to the light leakage value corresponding to the display screen, so that the interference of the light leakage of the display screen on the ambient light sensed by the light sensor is reduced, the accuracy of ambient light sensing is improved, and further, the compensated current ambient brightness is adopted as the reference of display screen display brightness adjustment, so that the accurate degree of display screen display brightness automatic adjustment can be improved, and the user experience is further improved.
In one embodiment, establishing a corresponding relationship between display brightness of a display screen and a light leakage value of the display screen includes: detecting a first light leakage value of the display screen when the display screen displays a first display brightness; detecting a second light leakage value of the display screen when the display screen displays a second display brightness; and determining the corresponding relation according to the first display brightness, the first light leakage value, the second display brightness and the second light leakage value.
Furthermore, through multiple test measurements, the light leakage value of the display screen is determined to change along with the change of the display brightness of the display screen, so that the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen can be fitted.
In one embodiment, the first display brightness and the second display brightness are set to different brightness levels of the display screen. The first display brightness may be a maximum brightness of the display screen. The second display brightness can adopt a dichotomy mode and the like, and intermediate brightness is taken between the highest brightness of the display screen and the display brightness of the display screen being 0, namely 1/2 of the highest brightness; and when the display screen is at the second display brightness, if the light leakage value sensed by the light sensor is not 0, determining the light leakage value of the second display brightness as the second light leakage value. And if the light leakage value sensed by the light sensor is 0 when the display screen displays the second display brightness, continuously taking the middle brightness between the highest brightness and the second display brightness of the display screen, determining the middle brightness as the updated second display brightness until the light leakage value sensed by the light sensor is not 0, and determining the first light leakage value which is not 0 as the second light leakage value.
Since, in some cases, the light sensor cannot sense light leakage when the brightness of the display screen is lower than a certain brightness value, two non-0 light leakage values are used here to improve the accuracy of the fitting equation. In summary, in the present application, when the light leakage value detected by the current second display luminance is 0, the intermediate luminance value between the current second display luminance and the highest luminance value is taken as the next second display luminance, and the second light leakage value is detected until the second light leakage value different from zero is detected.
The first light leakage value sensed by the light sensor can be respectively detected when the display screen displays the brightness at the first time, and the second light leakage value sensed by the light sensor can be detected when the display screen displays the brightness at the second time. If the light leakage value cannot be sensed when the maximum brightness of the display screen is achieved, it can be judged that no light leakage occurs.
Fitting equations representing the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen can be determined by adopting fitting and other modes.
The display brightness of the current display screen can be substituted into the determined corresponding relation equation, and the light leakage value of the display brightness of the current display screen is determined.
In one embodiment, determining the corresponding relationship according to the first display brightness, the first light leakage value, the second display brightness and the second light leakage value includes:
taking the first display brightness and the first light leakage value as a first fitting coordinate;
taking the second display brightness and the second light leakage value as a second fitting coordinate;
and fitting a linear equation to obtain a linear equation representing the corresponding relation based on the first fitting coordinate and the second fitting coordinate.
The display brightness of the display screen and the light leakage value of the display screen usually show a linear relationship as shown in fig. 2a or fig. 2 b. The display brightness of the display screen in fig. 2a and 2b may be a display brightness level of the display screen.
Here, when the first display luminance is an abscissa in the two-dimensional coordinate system and the first display luminance is an abscissa in the two-dimensional coordinate system, the first light leakage value of the display screen sensed by the light sensor at the first display luminance may be an ordinate in the two-dimensional coordinate system, and a coordinate value of one point may be obtained, and the coordinate value may be a first fitted coordinate.
Here, when the second display luminance is an abscissa in the two-dimensional coordinate system and the second display luminance is an abscissa in the two-dimensional coordinate system, the second light leakage value of the display screen sensed by the light sensor at the second display luminance may be an ordinate in the two-dimensional coordinate system, and a coordinate value of another point may be obtained, where the coordinate value may be a second fitted coordinate.
And determining the axiom of a straight line according to the two points. And determining a linear equation determined by the first fitting coordinate and the second fitting coordinate as a fitting equation representing the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen.
Therefore, the light leakage value of the display brightness of the current display screen can be determined according to the display brightness of the current display screen and the fitting equation of the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen.
In practical application, fitting equations of the corresponding relation between the display brightness of the display screen of each mobile phone and the light leakage value of the display screen may be different, and by adopting the method for determining the corresponding relation fitting equation provided by the embodiment of the invention, the speed of determining the fitting equation of the corresponding relation between the display brightness of the display screen and the light leakage value can be increased, and the efficiency of compensating the first light sensation value is further increased.
In one embodiment, a display screen with first display brightness is placed in a dark box environment, and a first light leakage value of the display screen is detected through a light sensor;
when the display screen displays the second display brightness, detecting a second light leakage value of the display screen, including: and placing the display screen with the second display brightness in a dark box environment, and detecting a second light leakage value of the display screen through the light sensor.
Here, the dark box environment may be a dark environment of a light test in which ambient light is isolated to the outside to reduce the influence of the ambient light on the light sensor.
The first light leakage value and the second light leakage value are sensed under the dark box environment, the influence of other light rays on the light sensor can be reduced, the sensing precision of the first light leakage value and the second light leakage value is improved, and the accuracy of a corresponding relation equation of display brightness and the light leakage value of the display screen is improved.
In practical application, the first light leakage value and the second light leakage value can be sensed in a dark box in a mobile phone production process under the dark box environment, and then a fitting equation of the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen is determined. And in the subsequent process of testing or using the mobile phone, determining the current light leakage value by adopting a fitting equation of the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen.
In one embodiment, obtaining a first light sensation value of a current environment through a light sensor includes:
acquiring a first light sensitivity value of the current environment through an nth light sensing channel of the light sensor, wherein N is a positive integer smaller than N, N is the total number of the light sensing channels, and the wavelengths of light corresponding to different light sensing channels are different;
determining the light leakage value of the current display brightness of the display screen according to the pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen, wherein the method comprises the following steps:
determining the light leakage value of the current display brightness of the display screen in the nth photosensitive channel according to the corresponding relation between the display brightness of the display screen and the light leakage value of the nth photosensitive channel;
adopt the light leak value compensation first light sense value of the present display luminance of display screen, determine the first light sense value after will compensating as current ambient light brightness, include:
and compensating the first light sensation value of the nth photosensitive channel by using the light leakage value of the current display brightness of the display screen in the nth photosensitive channel, and determining the compensated first light sensation value of the nth photosensitive channel as the ambient light brightness of the current environment in the nth photosensitive channel.
The light sensor can have various types of light sensing channels, such as: the light sensor may have both a visible light sensing channel and an infrared light sensing channel.
In the embodiment of the disclosure, the light leakage value received by each photosensitive channel under the display brightness of the current display screen can be determined through the corresponding relationship between the display brightness of the display screen and the light leakage value of the display screen received by each photosensitive channel, the light leakage value received by each photosensitive channel under the display brightness of the current display screen is adopted, the first light sensing value sensed by each photosensitive channel of the light sensor is respectively compensated, the ambient light brightness of the current environment in each photosensitive channel is obtained, and the ambient light brightness of each photosensitive channel is further used as the basis for adjusting the display brightness of the display screen.
In the embodiment of the disclosure, the ambient light brightness corresponding to multiple or one photosensitive channels (e.g., one visible light photosensitive channel) of the same type may be used as a basis for adjusting the display brightness of the display screen, and the ambient light brightness corresponding to one or more photosensitive channels (e.g., one visible light photosensitive channel and one infrared light photosensitive channel, or two visible light photosensitive channels and three infrared light photosensitive channels) of different types may also be used as a basis for adjusting the display brightness of the display screen.
Preferably, the current display brightness of the display screen can be set by a user, and can also be automatically adjusted through a controller in the mobile terminal.
Further, according to a scheme of adjusting the display brightness of the display screen by combining the multiple photosensitive channels, in the embodiment of the present disclosure, according to a preset combination rule (e.g., a rule such as a superposition averaging rule), the compensated ambient light luminances of the M photosensitive channels are combined to be the current ambient light luminance, and then the display brightness of the display screen is adjusted by using the current ambient light luminance obtained by the combined compensation, where M is a positive integer less than or equal to N.
In the embodiment of the present disclosure, before the first light sensation values measured by the light sensing channels are compensated to obtain the corresponding ambient light brightness under each light sensing channel, the first light sensation values measured by the light sensing channels are combined, and then the combined first light sensation values are compensated by using the light leakage value of the light sensor to obtain the ambient light brightness under the current environment.
Different light sensors usually adopt different combination modes, first light sensation values corresponding to different light sensing channels are combined into a first light sensation value of the light sensor, and the light sensation values sensed by part or all of the light sensing channels can be selected to be combined according to actual requirements.
Taking the example that the light sensor has two photosensitive channels, the combination manner of combining the first photosensitive values sensed by the two photosensitive channels can be expressed by expression (1):
Lux＝a*((b*CH1)-(c*CH2))/(ATime*AGain) (1)
the light sensor comprises a light sensor, a light sensor and a light sensor, wherein Lux represents a first light sensitivity value sensed by the light sensor, CH1 represents a first light sensitivity value sensed by a 1 st light sensing channel in the light sensor, CH2 represents a first light sensitivity value sensed by a 2 nd light sensing channel in the light sensor, ATime represents the integral time of the light sensor sensing the light sensitivity value of a corresponding light sensing channel, AGain represents the amplification factor of the light sensor, and a, b and c respectively represent constants determined by the characteristics of the light sensor.
In the embodiment of the disclosure, because corresponding combination modes or combination rules are set for different characteristics of different photosensitive channels in the light sensor, the compensated ambient light brightness is closer to a true value, and the compensation precision of the ambient light brightness is greatly improved.
One specific example is provided below in connection with any of the embodiments described above:
in the actual production test process, the method provided by the embodiment of the invention can be adopted to carry out mobile phone test.
Through a number of tests, it was determined that the LCD leakage value is linear to the backlight brightness, as shown in fig. 2a and 2 b.
The specific steps of the mobile phone test, as shown in fig. 3, may include:
step 301: turning off the display screen of the mobile phone to calibrate the ambient light source
Step 302: in the dark box, the display screen is firstly turned on to the maximum in a backlight mode, the light leakage value is read, the light leakage value of the second point is read by the dichotomy method, and the second point can be drawn into a straight line: y is kx + b; wherein: y denotes a light leakage value, x denotes an LCD backlight luminance, k denotes a slope of a straight line, and b denotes an offset value. If there is no light leakage, step 304 is performed.
Step 303: through the corresponding light leakage value of each backlight grade of practical use, compensate the light sensation value of light sensor, the external actual ambient brightness of accurate determination. And step 304 is performed.
Step 304: and carrying out dimming test on the display screen by adopting a stable light source.
The compensation method can be further optimized, and the light sensitivity value of the light sensor is determined by a calculation formula of the light sensitivity value of each photosensitive channel of the light sensor, such as the calculation formula expressed by expression (1). The compensated ambient light brightness can be determined by compensating the light sensation value of each photosensitive channel through a calculation formula. Compensation is carried out from the source, and the method is more accurate.
Fig. 4 is a block diagram illustrating an ambient light compensation device 200 according to an exemplary embodiment. Referring to fig. 4, the apparatus includes: an acquisition module 210, a first determination module 220, and a compensation module 230, wherein,
the obtaining module 210 is configured to obtain a first light sensation value of a current environment through a light sensor;
the first determining module 220 is configured to determine a light leakage value of the current display brightness of the display screen according to a pre-established correspondence between the display brightness of the display screen and the light leakage value of the display screen;
the compensation module 230 is configured to compensate the first light sensation value by using a light leakage value of the current display brightness of the display screen, and determine the compensated first light sensation value as the current ambient light brightness.
In one embodiment, as shown in fig. 5, the apparatus further comprises: a second determining module 240, configured to determine a corresponding relationship between display brightness of the display screen and a light leakage value of the display screen;
the second determining module 240 is specifically configured to:
detecting a first light leakage value of the display screen when the display screen displays a first display brightness;
detecting a second light leakage value of the display screen when the display screen displays a second display brightness;
and determining the corresponding relation according to the first display brightness, the first light leakage value, the second display brightness and the second light leakage value.
In one embodiment, as shown in fig. 6, the second determining module 240 includes: the first determining submodule 241 is configured to use the first display brightness and the first light leakage value as a first fitting coordinate; taking the second display brightness and the second light leakage value as a second fitting coordinate; and fitting a linear equation to obtain a linear equation representing the corresponding relation based on the first fitting coordinate and the second fitting coordinate.
In one embodiment, as shown in fig. 6, the second determining module 240 includes:
the first detection submodule 242 is configured to place the display screen with the first display brightness in a dark box environment, and detect a first light leakage value of the display screen through the light sensor;
the second detection submodule 243 is configured to place the display screen with the second display brightness in a dark box environment, and detect a second light leakage value of the display screen through the light sensor.
In one embodiment, as shown in fig. 7, the obtaining module 210 includes:
the obtaining submodule 211 is configured to obtain a first light sensitivity value of the current environment through an nth light sensing channel of the light sensor, where N is a positive integer smaller than N, and N is a total number of light sensing channels, where wavelengths of light corresponding to different light sensing channels are different;
the first determining module 220 includes:
the second determining submodule 221 is configured to determine, according to the corresponding relationship between the display brightness of the display screen and the light leakage value of the nth photosensitive channel, the light leakage value of the current display brightness of the display screen in the nth photosensitive channel;
the compensation module 230 includes:
the compensation submodule 231 is configured to compensate the first light sensation value of the nth light sensing channel by using the light leakage value of the current display brightness of the display screen in the nth light sensing channel, and determine the compensated first light sensation value of the nth light sensing channel as the ambient light brightness of the current environment in the nth light sensing channel.
In one embodiment, as shown in fig. 8, the apparatus 200 further comprises:
and the combination module 250 is used for presetting a combination rule, and combining the respective environment light brightness corresponding to the compensated M photosensitive channels into the current environment light brightness, wherein M is a positive integer less than or equal to N.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In an exemplary embodiment, the obtaining module 210, the first determining module 220, the compensating module 230, the second determining module 240, the combining module 250, and the like may be implemented by one or more Central Processing Units (CPUs), Graphics Processing Units (GPUs), Baseband Processors (BPs), Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors (gpds), controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components, for performing the foregoing methods.
Fig. 9 is a block diagram illustrating an apparatus 800 for ambient light compensation according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 9, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (14)
1. An ambient light compensation method, comprising:
acquiring a first light sensation value of the current environment through a light sensor;
determining a light leakage value of the current display brightness of the display screen according to a pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen;
and compensating the first light sensation value by adopting the light leakage value of the current display brightness of the display screen, and determining the compensated first light sensation value as the current ambient light brightness.
2. The method of claim 1, wherein establishing a correspondence between display brightness of the display screen and a light leakage value of the display screen comprises:
detecting a first light leakage value of the display screen when the display screen displays a first display brightness;
detecting a second light leakage value of the display screen when the display screen displays a second display brightness;
and determining the corresponding relation according to the first display brightness, the first light leakage value, the second display brightness and the second light leakage value.
3. The method of claim 2, wherein determining the correspondence according to the first display brightness, the first leakage value, the second display brightness, and the second leakage value comprises:
taking the first display brightness and the first light leakage value as a first fitting coordinate;
taking the second display brightness and the second light leakage value as a second fitting coordinate;
and fitting a linear equation to obtain a linear equation representing the corresponding relation based on the first fitting coordinate and the second fitting coordinate.
4. The method of claim 2,
when the display screen displays the first display brightness, detecting a first light leakage value of the display screen, including: placing the display screen with the first display brightness in a dark box environment, and detecting a first light leakage value of the display screen through the light sensor;
when the display screen displays the second display brightness, detecting a second light leakage value of the display screen, including: and placing the display screen with the second display brightness in a dark box environment, and detecting a second light leakage value of the display screen through the light sensor.
5. The method according to any one of claims 1 to 4, wherein the obtaining of the first light sensation value of the current environment by the light sensor comprises:
acquiring a first light sensitivity value of the current environment through an nth light sensing channel of the light sensor, wherein N is a positive integer smaller than N, N is the total number of the light sensing channels, and the wavelengths of light corresponding to different light sensing channels are different;
the determining the light leakage value of the current display brightness of the display screen according to the pre-established corresponding relationship between the display brightness of the display screen and the light leakage value of the display screen comprises the following steps:
determining the light leakage value of the current display brightness of the display screen in the nth photosensitive channel according to the corresponding relation between the display brightness of the display screen and the light leakage value of the nth photosensitive channel;
adopt the light leak value of the present display luminance of display screen compensates first light sense value, confirm the first light sense value after will compensating as current ambient light brightness, include:
and compensating the first light sensation value of the nth light sensing channel by using the light leakage value of the current display brightness of the display screen in the nth light sensing channel, and determining the compensated first light sensation value of the nth light sensing channel as the ambient light brightness of the current environment in the nth light sensing channel.
6. The method of claim 5, further comprising:
and combining the respective corresponding environmental light brightness of the M compensated photosensitive channels into the current environmental light brightness according to a preset combination rule, wherein M is a positive integer less than or equal to N.
7. An ambient light compensation device, comprising: an acquisition module, a first determination module and a compensation module, wherein,
the acquisition module is used for acquiring a first light sensation value of the current environment through the acquisition light sensor;
the first determining module is used for determining a light leakage value of the current display brightness of the display screen according to a pre-established corresponding relation between the display brightness of the display screen and the light leakage value of the display screen;
the compensation module is used for compensating the first light sensation value by adopting the light leakage value of the current display brightness of the display screen, and determining the compensated first light sensation value as the current ambient light brightness.
8. The apparatus of claim 7, further comprising: the second determining module is used for determining the corresponding relation between the display brightness of the display screen and the light leakage value of the display screen;
the second determining module is specifically configured to:
detecting a first light leakage value of the display screen when the display screen displays a first display brightness;
detecting a second light leakage value of the display screen when the display screen displays a second display brightness;
and determining the corresponding relation according to the first display brightness, the first light leakage value, the second display brightness and the second light leakage value.
9. The apparatus of claim 8, wherein the second determining module comprises: the first determining submodule is used for taking the first display brightness and the first light leakage value as a first fitting coordinate; taking the second display brightness and the second light leakage value as a second fitting coordinate; and fitting a linear equation to obtain a linear equation representing the corresponding relation based on the first fitting coordinate and the second fitting coordinate.
10. The apparatus of claim 8, wherein the second determining module comprises:
the first detection submodule is used for placing the display screen with the first display brightness in a dark box environment and detecting a first light leakage value of the display screen through the light sensor;
and the second detection submodule is used for placing the display screen with the second display brightness in a dark box environment and detecting a second light leakage value of the display screen through the light sensor.
11. The apparatus according to any one of claims 7 to 10,
the acquisition module includes:
the acquisition submodule is used for acquiring a first light sensitivity value of the current environment through an nth light sensing channel of the light sensor, wherein N is a positive integer smaller than N, N is the total number of the light sensing channels, and the wavelengths of light rays corresponding to different light sensing channels are different;
the first determining module includes:
the second determining submodule is used for determining the light leakage value of the current display brightness of the display screen in the nth photosensitive channel according to the corresponding relation between the display brightness of the display screen and the light leakage value of the nth photosensitive channel;
the compensation module comprises:
and the compensation submodule is used for compensating the first light sensation value of the nth photosensitive channel by utilizing the light leakage value of the current display brightness of the display screen in the nth photosensitive channel, and determining the compensated first light sensation value of the nth photosensitive channel as the ambient light brightness of the current environment in the nth photosensitive channel.
12. The apparatus of claim 11, further comprising:
and the combination module is used for combining the respective environment light brightness corresponding to the compensated M photosensitive channels into the current environment light brightness according to a preset combination rule, wherein M is a positive integer less than or equal to N.
13. A terminal comprising a processor, a memory and an executable program stored on the memory and executable by the processor, characterized in that the processor executes the executable program to perform the steps of the ambient light compensation method according to any of claims 1 to 6.
14. A storage medium having an executable program stored thereon, wherein the executable program, when executed by a processor, implements the steps of the ambient light compensation method according to any one of claims 1 to 6.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012653A (en) * | 2021-03-22 | 2021-06-22 | 上海七十迈数字科技有限公司 | Method and equipment for automatically controlling brightness of intelligent electric vehicle |
| CN113218503A (en) * | 2021-06-04 | 2021-08-06 | 维沃移动通信有限公司 | Method and system for determining ambient light intensity, electronic device, and storage medium |
| CN113793574A (en) * | 2021-08-18 | 2021-12-14 | 南京巨鲨显示科技有限公司 | Display device based on optical sensor and calibration method thereof |
| CN114281629A (en) * | 2021-12-27 | 2022-04-05 | 深圳市汇顶科技股份有限公司 | Method and device for estimating screen light leakage amount and electronic equipment |
| CN114283743A (en) * | 2021-12-27 | 2022-04-05 | 深圳市汇顶科技股份有限公司 | Method and device for detecting ambient light under display screen and electronic equipment |
| WO2022183888A1 (en) * | 2021-03-03 | 2022-09-09 | Oppo广东移动通信有限公司 | Screen light leakage amount determination method and apparatus, screen brightness adjustment method and apparatus, and electronic device |
| CN115706750A (en) * | 2021-08-09 | 2023-02-17 | 北京小米移动软件有限公司 | Color temperature calibration method, color temperature calibration device and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107818753A (en) * | 2017-11-22 | 2018-03-20 | 广东欧珀移动通信有限公司 | Screen brightness regulation method, device, storage medium and electronic equipment |
| CN107945769A (en) * | 2017-11-22 | 2018-04-20 | 广东欧珀移动通信有限公司 | Ambient light intensity detection method, device, storage medium and electronic equipment |
| CN107957294A (en) * | 2017-11-22 | 2018-04-24 | 广东欧珀移动通信有限公司 | Ambient light intensity detection method, device, storage medium and electronic equipment |
| CN108917921A (en) * | 2018-06-15 | 2018-11-30 | 江西合力泰科技有限公司 | A kind of ambient light intensity detection method |
| CN110264978A (en) * | 2019-06-28 | 2019-09-20 | 联想(北京)有限公司 | Luminous intensity modification method, luminous intensity correcting device and electronic equipment |
-
2019
- 2019-08-28 CN CN201910804750.7A patent/CN112449026B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107818753A (en) * | 2017-11-22 | 2018-03-20 | 广东欧珀移动通信有限公司 | Screen brightness regulation method, device, storage medium and electronic equipment |
| CN107945769A (en) * | 2017-11-22 | 2018-04-20 | 广东欧珀移动通信有限公司 | Ambient light intensity detection method, device, storage medium and electronic equipment |
| CN107957294A (en) * | 2017-11-22 | 2018-04-24 | 广东欧珀移动通信有限公司 | Ambient light intensity detection method, device, storage medium and electronic equipment |
| CN108917921A (en) * | 2018-06-15 | 2018-11-30 | 江西合力泰科技有限公司 | A kind of ambient light intensity detection method |
| CN110264978A (en) * | 2019-06-28 | 2019-09-20 | 联想(北京)有限公司 | Luminous intensity modification method, luminous intensity correcting device and electronic equipment |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022183888A1 (en) * | 2021-03-03 | 2022-09-09 | Oppo广东移动通信有限公司 | Screen light leakage amount determination method and apparatus, screen brightness adjustment method and apparatus, and electronic device |
| CN113012653A (en) * | 2021-03-22 | 2021-06-22 | 上海七十迈数字科技有限公司 | Method and equipment for automatically controlling brightness of intelligent electric vehicle |
| CN113218503A (en) * | 2021-06-04 | 2021-08-06 | 维沃移动通信有限公司 | Method and system for determining ambient light intensity, electronic device, and storage medium |
| CN115706750A (en) * | 2021-08-09 | 2023-02-17 | 北京小米移动软件有限公司 | Color temperature calibration method, color temperature calibration device and storage medium |
| CN115706750B (en) * | 2021-08-09 | 2024-05-24 | 北京小米移动软件有限公司 | Color temperature calibration method, color temperature calibration device and storage medium |
| CN113793574A (en) * | 2021-08-18 | 2021-12-14 | 南京巨鲨显示科技有限公司 | Display device based on optical sensor and calibration method thereof |
| CN114281629A (en) * | 2021-12-27 | 2022-04-05 | 深圳市汇顶科技股份有限公司 | Method and device for estimating screen light leakage amount and electronic equipment |
| CN114283743A (en) * | 2021-12-27 | 2022-04-05 | 深圳市汇顶科技股份有限公司 | Method and device for detecting ambient light under display screen and electronic equipment |
| CN114281629B (en) * | 2021-12-27 | 2023-10-20 | 深圳市汇顶科技股份有限公司 | Method and device for estimating screen light leakage amount and electronic equipment |
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