WO2016110145A1 - 屏幕亮度设置方法及装置 - Google Patents

屏幕亮度设置方法及装置 Download PDF

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Publication number
WO2016110145A1
WO2016110145A1 PCT/CN2015/093408 CN2015093408W WO2016110145A1 WO 2016110145 A1 WO2016110145 A1 WO 2016110145A1 CN 2015093408 W CN2015093408 W CN 2015093408W WO 2016110145 A1 WO2016110145 A1 WO 2016110145A1
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WO
WIPO (PCT)
Prior art keywords
light source
light sensor
brightness level
terminal
backlight
Prior art date
Application number
PCT/CN2015/093408
Other languages
English (en)
French (fr)
Inventor
李国盛
刘安昱
刘山荣
Original Assignee
小米科技有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 小米科技有限责任公司 filed Critical 小米科技有限责任公司
Priority to EP15876646.9A priority Critical patent/EP3220615B1/en
Priority to BR112016021239-8A priority patent/BR112016021239B1/pt
Priority to MX2017005358A priority patent/MX370424B/es
Priority to RU2016149324A priority patent/RU2645302C1/ru
Priority to KR1020167028504A priority patent/KR101861093B1/ko
Priority to JP2016524079A priority patent/JP6268285B2/ja
Publication of WO2016110145A1 publication Critical patent/WO2016110145A1/zh
Priority to US15/346,088 priority patent/US9754539B2/en

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Classifications

    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/12—Controlling the intensity of the light using optical feedback
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • the present disclosure relates to the field of computer technologies, and in particular, to a screen brightness setting method and apparatus.
  • Automatic backlight adjustment refers to automatically adjusting the backlight brightness of the screen of the terminal according to the brightness of the ambient light, so that the backlight brightness of the screen is positively correlated with the ambient light. Automatic backlight adjustment ensures that the backlight brightness of the screen is adapted to the ambient light to protect the user's vision.
  • a light sensor is installed on the opening of the front panel of the terminal.
  • the terminal can measure the brightness value of the ambient light through the light sensor, according to the brightness value and the light sensor.
  • the backlight brightness level is calculated for the backlight function at the time of the light source, and the calculated backlight brightness is set to the backlight brightness level.
  • the present disclosure provides a A method and device for setting screen brightness.
  • a screen brightness setting method including:
  • the first backlight brightness level is higher than a second backlight brightness level
  • the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source
  • a screen brightness setting apparatus including:
  • a brightness acquiring module configured to acquire, by using a light sensor, a brightness value of ambient light in an environment in which the terminal is located;
  • a first detecting module configured to detect whether the light sensor is facing away from a light source in the environment
  • a brightness calculation module configured to calculate a first backlight brightness level according to the brightness value acquired by the brightness acquiring module, when the first detecting module detects that the light sensor is facing away from the light source, a backlight brightness level is higher than a second backlight brightness level, and the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source;
  • the first setting module is configured to set a backlight brightness of the terminal to the first backlight brightness level calculated by the brightness calculation module.
  • a screen brightness setting apparatus including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the first backlight brightness level is higher than a second backlight brightness level
  • the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source
  • the brightness value obtained by the light sensor is lower than the actual brightness value of the ambient light.
  • the brightness level of the first backlight calculated when the light source is opposite to the light source is higher than the brightness level of the second backlight calculated when the light source is positively resolved.
  • FIG. 1 is a flowchart of a screen brightness setting method according to an exemplary embodiment.
  • FIG. 2A is a flowchart of a screen brightness setting method according to another exemplary embodiment.
  • 2B is a schematic diagram of a backlight function, according to an exemplary embodiment.
  • 2C is a schematic diagram of a comparison of a backlight function, according to an exemplary embodiment.
  • FIG. 3 is a block diagram of a screen brightness setting apparatus according to an exemplary embodiment.
  • FIG. 4 is a block diagram of a screen brightness setting apparatus according to an exemplary embodiment.
  • FIG. 5 is a block diagram of an apparatus for screen brightness setting, according to an exemplary embodiment.
  • FIG. 1 is a flowchart of a method for setting a screen brightness according to an exemplary embodiment.
  • the screen brightness setting method is applied to a terminal. As shown in FIG. 1 , the screen brightness setting method includes the following steps.
  • step 101 the brightness value of the ambient light of the environment in which the terminal is located is acquired by the light sensor.
  • step 102 it is detected whether the light sensor is facing away from the light source within the environment.
  • step 103 if it is detected that the light sensor is facing away from the light source, the first backlight brightness level is calculated according to the brightness value, the first backlight brightness level is higher than the second backlight brightness level, and the second backlight brightness level is when the light sensor is facing the light source.
  • the brightness level of the backlight is calculated based on the brightness value.
  • step 104 the backlight brightness of the terminal is set to the first backlight brightness level.
  • the screen brightness setting method obtains the brightness value of the ambient light in the environment where the terminal is located through the light sensor; detects whether the light sensor is facing away from the light source in the environment; if the light sensor is detected to face the light source, Calculating a first backlight brightness level according to the brightness value, the first backlight brightness level is higher than the second backlight brightness level, and the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source; Set to the first backlight brightness level, because the brightness value obtained by the light sensor is lower than the actual brightness value of the ambient light when the light sensor is facing away from the light source, the first backlight brightness level calculated when facing away from the light source is higher than The brightness level of the second backlight calculated when the light source is opposite, solves the low brightness value of the measured ambient light when the light sensor is facing away from the light source, resulting in low brightness According to the brightness value and the inaccuracy of the backlight brightness level calculated by the backlight function when the light sensor
  • FIG. 2A is a flowchart of a method for setting a screen brightness according to another exemplary embodiment.
  • the screen brightness setting method is applied to a terminal. As shown in FIG. 2A, the screen brightness setting method includes the following steps.
  • step 201 the brightness value of the ambient light of the environment in which the terminal is located is acquired by the light sensor.
  • Ambient light in the environment in which the terminal is located can be generated by a point source or by other sources.
  • the point source may be a sun, a lit electric light, or the like.
  • step 202 it is detected whether the light sensor is facing away from the light source within the environment.
  • the terminal can calculate the backlight brightness level according to the brightness value and the first backlight function, and the first backlight function is the light sensor positive
  • the backlight brightness level calculation function for the light source Since the correspondence between the brightness values of the human eye and the ambient light can be counted, the function diagram of the first backlight function can be obtained by referring to the corresponding relationship. Please refer to the schematic diagram of a backlight function shown in FIG. 2B.
  • the curve of Fig. 2B(1) is used to represent the correspondence between the visual value of the user's vision and the ambient light
  • the curve of Fig. 2B(2) is used to represent a function diagram of the first backlight function.
  • the brightness value measured by the light sensor is smaller than the actual brightness value of the ambient light.
  • the calculated backlight brightness level is low. Therefore, the contrast between the ambient light and the backlight brightness of the screen is large, and the visual damage to the user is greatly damaged. Therefore, before calculating the backlight brightness level according to the brightness value, the terminal needs to detect whether the light sensor is facing away from the light source in the environment, and then according to The detection result calculates the backlight brightness level.
  • This embodiment provides two methods for detecting whether the light sensor is facing away from the light source. The following two methods are described separately:
  • detecting whether the light sensor is facing away from the light source in the environment includes:
  • the gravity sensor is used to detect whether the measurement plane faces the direction of the light source, and the direction of the light source is the default direction or the direction input by the user;
  • the measurement plane may be a plane where the front panel of the terminal is located, or a plane where the rear panel of the terminal is located, and may be other planes, which is not limited in this embodiment.
  • the measurement plane where the light sensor is located is a known parameter and can be directly obtained by the terminal.
  • the light sensor is located on the front panel of the terminal.
  • the terminal After determining the measurement plane, the terminal can determine the orientation of the measurement plane of the terminal through the sensor, determine the direction of the light source, and detect whether the light sensor is facing away from the light source according to the orientation of the measurement plane and the direction of the light source.
  • the sensor is a gravity sensor as an example.
  • the terminal can establish a coordinate system, assuming that the interface of the terminal is an xz plane, wherein the center of the terminal is the coordinate origin, the right half of the x-axis pointing to the right of the terminal, and the z-axis perpendicular to the x-axis on the terminal plane, xz
  • the positive half-axis of the z-axis above the terminal in the plane is the y-axis perpendicular to the terminal plane
  • the xz plane is directed to the positive half-axis of the y-axis above the terminal.
  • the terminal can measure the terminal through the gravity sensor. Acceleration on the shaft. When the acceleration direction is directed to the positive direction of the y-axis, it is determined that the measurement plane is facing downward; when the acceleration direction is directed to the negative direction of the y-axis, it is determined that the measurement plane is facing upward.
  • the direction of the light source can be the default direction, such as the top of the terminal; or the direction entered by the user.
  • the user can also modify the default direction, which is not limited in this embodiment.
  • the terminal may provide an input box for inputting the position of the light source, or the terminal may display the position option of the light source in the interface, and the user selects an option from each option according to the actual position of the light source, and the terminal selects according to the user.
  • the option determines the position of the light source to determine the direction of the light source. For example, the terminal displays two options: “light source is above the terminal” and “light source is below the terminal”. If the user selects the option “light source is above the terminal”, it is determined that the direction of the light source is above the terminal.
  • the light source is located above the terminal.
  • the terminal can detect whether the front panel of the terminal is placed upward by the gravity sensor. If the front panel of the terminal is placed upward, the light sensor is determined to be facing the light source; Place the front panel down to make sure the light sensor is facing away from the light source.
  • detecting whether the light sensor is facing away from the light source in the environment includes:
  • the predetermined device 1) obtaining the brightness value of the ambient light through the predetermined device in the terminal, the plane where the predetermined device is located is opposite to the direction of the plane where the light sensor is located, and the predetermined device is another light sensor or camera;
  • the terminal may further include a predetermined device that has brightness for acquiring ambient light.
  • the value of the device can be another light sensor or camera.
  • the plane in which the predetermined device is located is opposite to the direction in which the plane of the light sensor is located.
  • the predetermined device when the light sensor is located on the front panel of the terminal, the predetermined device is located at the rear panel of the terminal, and the camera may be a rear camera; when the light sensor is located at the rear panel of the terminal, the predetermined device is located at the front panel of the terminal, and then the camera It can be a front camera.
  • the terminal can obtain the brightness value of the ambient light through the predetermined device, compare the brightness value obtained by the light sensor with the brightness value obtained by the predetermined device, and detect whether the light sensor is facing away from the light source according to the comparison result.
  • the embodiment does not limit the order in which the light sensor obtains the brightness value and the predetermined device acquires the brightness value.
  • the brightness value obtained by the terminal through the light sensor is 400 lux. If the brightness value obtained by the predetermined device is 300 lux, it is determined that the light sensor is facing the light source; if the brightness value obtained by the predetermined device is 500 lux, it is determined that the light sensor is facing away from the light source. light source.
  • the terminal can measure the brightness value of the ambient light twice by the light sensor, and the orientations of the two measurement planes are opposite. If the brightness value obtained in step 201 is used as the first brightness value, the terminal may record the direction facing the measurement plane when measuring the first brightness value, and then measure the direction of the measurement plane back to the direction through the light sensor. The second brightness value is compared with the second brightness value, and if the second brightness value is greater than the first brightness value, determining that the light sensor is facing away from the light source; if the second brightness value is less than the first brightness value, determining the light The sensor is facing the light source.
  • step 203 if it is detected that the light sensor is facing away from the light source, it is detected whether the terminal is being used by the user. If it is detected that the terminal is not used by the user, step 204 is performed; if it is detected that the terminal is being used by the user, the step is triggered. 205.
  • the user places the terminal on an object and the light sensor is facing away from the light source. At this time, the user is not using the terminal. If a higher backlight brightness level is set, the power of the terminal is wasted, which affects the user experience. Therefore, before the terminal sets the backlight brightness, the terminal also needs to detect whether the terminal is being used by the user.
  • the detection terminal is being used by the user, including:
  • the terminal can detect whether the terminal is being used by the user by using at least one of the following two implementation manners:
  • the terminal may obtain a distance between the object and the terminal by using the distance sensor, and detect whether the distance is less than a distance threshold; if the distance is less than the distance threshold, determine that the terminal is placed on the object, and the terminal is not in the user. If the distance is greater than the distance threshold, it is determined that the terminal is not placed on the object, and the terminal is being used by the user.
  • the distance sensor and the light sensor are located in the same plane.
  • the terminal may detect whether the user's operation is received through the screen; if the screen is not received The user's operation determines that the terminal is not being used by the user; if the screen receives the user's operation, it determines that the terminal is being used by the user.
  • the third backlight brightness level is calculated, the backlight brightness of the terminal is set to a third backlight brightness level, and the third backlight brightness level is lower than the first backlight brightness level, and the first backlight brightness level is when the light sensor is facing away from the light source.
  • the brightness level calculated based on the brightness value ends the flow.
  • the terminal may set the backlight brightness to the calculated third backlight brightness level.
  • the third backlight brightness level may be a backlight brightness level calculated according to the brightness value, or may be a fixed level, or may be a random level lower than the first backlight brightness level, which is not limited in this embodiment.
  • the first backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing away from the light source.
  • the first backlight brightness level is calculated according to the brightness value
  • the first backlight brightness level is higher than the second backlight brightness level
  • the second backlight brightness level is the backlight brightness level calculated according to the brightness value when the light sensor is facing the light source.
  • the terminal may calculate a second backlight function according to the first backlight function, so that the brightness value and the second backlight are The first backlight brightness level calculated by the function is greater than the second backlight brightness level calculated according to the brightness value and the first backlight function.
  • the embodiment does not limit the manner in which the second backlight function is calculated according to the first backlight function. Please refer to the comparison diagram of a backlight function shown in FIG. 2C.
  • the lower curve in FIG. 2C is a function diagram of the first backlight function
  • the upper curve is a function diagram of the second backlight function.
  • the terminal may also calculate the first backlight brightness level according to the second backlight brightness level without calculating the second backlight function.
  • the terminal may increase the brightness level of the second backlight by a predetermined value to obtain a first backlight brightness level, or increase the second backlight brightness level by a predetermined ratio to obtain a first backlight brightness level.
  • the terminal may set a predetermined ratio of 5%-10. The value between % is not limited in this embodiment.
  • step 206 the backlight brightness of the terminal is set to a first backlight brightness level.
  • the embodiment is exemplified by setting the brightness of the screen. It is assumed that the brightness value of the ambient light emitted by the fluorescent lamp is 400 lux, and the measured brightness value is 400 lux when the terminal is placed in the forward direction, that is, when the light sensor is facing the fluorescent lamp.
  • the obtained second backlight brightness level is 100 (100 out of the range of 0 to 255); when the terminal is placed in the reverse direction, that is, the light sensor is facing away from the fluorescent lamp, it is assumed that the measured brightness value is 370 lux, due to the function of the second backlight function A function graph higher than the first backlight function, the calculated first backlight brightness level is still 100, and the backlight brightness level of the backlight brightness of the terminal remains unchanged.
  • the screen brightness setting method obtains the brightness value of the ambient light in the environment where the terminal is located through the light sensor; detects whether the light sensor is facing away from the light source in the environment; if the light sensor is detected to face the light source, Root Calculating a first backlight brightness level according to the brightness value, the first backlight brightness level is higher than the second backlight brightness level, and the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source; Set to the first backlight brightness level, because the brightness value obtained by the light sensor is lower than the actual brightness value of the ambient light when the light sensor is facing away from the light source, the first backlight brightness level calculated when facing away from the light source is higher than The brightness level of the second backlight calculated when the light source is opposite to the light source solves the problem that the brightness value of the measured ambient light is low when the light sensor is facing away from the light source, so that the brightness value is calculated according to the brightness value and the backlight function when the light sensor is facing the
  • the terminal by detecting that the terminal is not used by the user, calculating a third backlight brightness level, setting the backlight brightness of the terminal to a third backlight brightness level, and the third backlight brightness level is lower than the first backlight brightness level, which may be absent from the user.
  • the backlight brightness level is lowered, and the problem that the user sets a higher backlight brightness level to waste the terminal power when the user is not using the terminal is solved, and the effect of saving the terminal power is achieved.
  • FIG. 3 is a block diagram of a screen brightness setting apparatus, which is applied to a terminal, as shown in FIG. 3, the screen brightness setting apparatus includes: a brightness acquisition module 301, first, according to an exemplary embodiment.
  • the detection module 302 the brightness level calculation module 303, and the first setting module 304.
  • the brightness acquisition module 301 is configured to acquire, by using a light sensor, a brightness value of ambient light of an environment in which the terminal is located;
  • the first detecting module 302 is configured to detect whether the light sensor is facing away from the light source in the environment;
  • the brightness level calculation module 303 is configured to calculate a first backlight brightness level according to the brightness value acquired by the brightness acquiring module 301 when the first detecting module 302 detects that the light sensor is facing away from the light source, and the first backlight brightness level is higher than the first brightness level.
  • a backlight brightness level, the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source;
  • the first setting module 304 is configured to set the backlight brightness of the terminal to the first backlight brightness level calculated by the brightness level calculation module 303.
  • the screen brightness setting device acquires the brightness value of the ambient light in the environment in which the terminal is located through the light sensor; detects whether the light sensor is facing away from the light source in the environment; and if the light sensor detects the light source facing away from the light source, Calculating a first backlight brightness level according to the brightness value, the first backlight brightness level is higher than the second backlight brightness level, and the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source; Set to the first backlight brightness level, because the brightness value obtained by the light sensor is lower than the actual brightness value of the ambient light when the light sensor is facing away from the light source, the first backlight brightness level calculated when facing away from the light source is higher than The brightness level of the second backlight calculated when the light source is opposite to the light source solves the problem that the brightness value of the measured ambient light is low when the light sensor is facing away from the light source, so that the brightness value is calculated according to the brightness value and the backlight function when the
  • FIG. 4 is a block diagram of a screen brightness setting device, which is applied to a terminal, as shown in FIG. 4, the screen brightness setting device includes: a brightness acquiring module 401, first, according to an exemplary embodiment.
  • the brightness acquisition module 401 is configured to acquire, by using a light sensor, a brightness value of ambient light of an environment in which the terminal is located;
  • the first detecting module 402 is configured to detect whether the light sensor is facing away from the light source in the environment;
  • the brightness level calculation module 403 is configured to calculate a first backlight brightness level according to the brightness value acquired by the brightness acquiring module 401 when the first detecting module 402 detects that the light sensor is facing away from the light source, and the first backlight brightness level is higher than the first brightness level.
  • a backlight brightness level, the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source;
  • the first setting module 404 is configured to set the backlight brightness of the terminal to the first backlight brightness level calculated by the brightness level calculation module 403.
  • the apparatus provided in this embodiment further includes: a second detecting module 405, a second setting module 406, and an operation triggering module 407;
  • the second detecting module 405 is configured to detect whether the terminal is being used by the user;
  • the second setting module 406 is configured to calculate a third backlight brightness level when the second detecting module 405 detects that the terminal is not used by the user, and set the backlight brightness of the terminal to the third backlight brightness level, and the third backlight brightness level.
  • the first backlight brightness level is a brightness level calculated according to the brightness value when the light sensor is facing away from the light source;
  • the operation triggering module 407 is configured to trigger an operation of calculating a first backlight brightness level according to the brightness value when the second detecting module 405 detects that the terminal is being used by the user.
  • the second detecting module 405 includes: a first detecting submodule 4051 or a second detecting submodule 4052;
  • the first detecting submodule 4051 is configured to detect, by the distance sensor, whether there is an object whose distance from the terminal is less than a distance threshold; or
  • the second detection sub-module 4052 is configured to detect, by the screen of the terminal, whether a user-triggered operation is received.
  • the first detecting module 402 includes: a plane determining submodule 4021, a third detecting submodule 4022, a first determining submodule 4023, and a second determining submodule 4024;
  • the plane determining submodule 4021 is configured to determine a measurement plane where the light sensor is located;
  • the third detecting sub-module 4022 is configured to detect, by the gravity sensor, whether the measuring plane determined by the plane determining sub-module 4021 faces the direction of the light source, and the direction of the light source is a default direction or a direction input by the user;
  • the first determining sub-module 4023 is configured to determine that the light sensor is facing the light source when the measuring plane faces the direction of the light source;
  • the second determining sub-module 4024 is configured to determine that the light sensor is facing away from the light source when the measuring plane is not facing the direction of the light source.
  • the first detecting module 402 includes: a brightness acquiring sub-module 4025, a brightness comparing sub-module 4026, a third determining sub-module 4027, and a fourth determining sub-module 4028;
  • the brightness acquisition sub-module 4025 is configured to acquire a brightness value of the ambient light through a predetermined device in the terminal, where the plane of the predetermined device is opposite to the direction of the plane where the light sensor is located, and the predetermined device is another light sensor or a camera;
  • the brightness comparison sub-module 4026 is configured to compare the brightness value acquired by the light sensor with the brightness value obtained by the predetermined device
  • the third determining sub-module 4027 is configured to determine that the light sensor is facing the light source when the brightness value acquired by the light sensor is greater than the brightness value obtained by the predetermined device;
  • the fourth determining sub-module 4028 is configured to determine that the light sensor is facing away from the light source when the brightness value acquired by the light sensor is less than the brightness value obtained by the predetermined device.
  • the screen brightness setting device acquires the brightness value of the ambient light in the environment in which the terminal is located through the light sensor; detects whether the light sensor is facing away from the light source in the environment; and if the light sensor detects the light source facing away from the light source, Calculating a first backlight brightness level according to the brightness value, the first backlight brightness level is higher than the second backlight brightness level, and the second backlight brightness level is a backlight brightness level calculated according to the brightness value when the light sensor is facing the light source; Set to the first backlight brightness level, because the brightness value obtained by the light sensor is lower than the actual brightness value of the ambient light when the light sensor is facing away from the light source, the first backlight brightness level calculated when facing away from the light source is higher than The brightness level of the second backlight calculated when the light source is opposite to the light source solves the problem that the brightness value of the measured ambient light is low when the light sensor is facing away from the light source, so that the brightness value is calculated according to the brightness value and the backlight function when the
  • the terminal by detecting that the terminal is not used by the user, calculating a third backlight brightness level, setting the backlight brightness of the terminal to a third backlight brightness level, and the third backlight brightness level is lower than the first backlight brightness level, which may be absent from the user.
  • the backlight brightness level is lowered, and the problem that the user sets a higher backlight brightness level to waste the terminal power when the user is not using the terminal is solved, and the effect of saving the terminal power is achieved.
  • An exemplary embodiment of the present disclosure provides a screen brightness setting apparatus capable of implementing a screen brightness setting method provided by the present disclosure, the screen brightness setting apparatus comprising: a processor, a memory for storing processor executable instructions;
  • processor is configured to:
  • the first backlight brightness level is calculated according to the brightness value, the first backlight brightness level is higher than the second backlight brightness level, and the second backlight brightness level is calculated according to the brightness value when the light sensor is facing the light source.
  • Backlight brightness level is calculated according to the brightness value, the first backlight brightness level is higher than the second backlight brightness level, and the second backlight brightness level is calculated according to the brightness value when the light sensor is facing the light source.
  • the backlight brightness of the terminal is set to the first backlight brightness level.
  • FIG. 5 is a block diagram of a screen brightness setting device 500, according to an exemplary embodiment.
  • device 500 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • apparatus 500 can include one or more of the following components: processing component 502, memory 504, power component 506, multimedia component 508, audio component 510, input/output (I/O) interface 512, sensor component 514, And a communication component 516.
  • Processing component 502 typically controls the overall operation of device 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 502 can include one or more processors 518 to execute instructions to perform all or part of the steps described above.
  • processing component 502 can include one or more modules to facilitate interaction between component 502 and other components.
  • processing component 502 can include a multimedia module to facilitate interaction between multimedia component 508 and processing component 502.
  • Memory 504 is configured to store various types of data to support operation at device 500. Examples of such data include instructions for any application or method operating on device 500, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 504 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Electrically erasable programmable read only memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • Power component 506 provides power to various components of device 500.
  • Power component 506 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 500.
  • the multimedia component 508 includes a screen between the device 500 and the user that provides an output interface.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen The screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 508 includes a front camera and/or a rear camera. When the device 500 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 510 is configured to output and/or input an audio signal.
  • audio component 510 includes a microphone (MIC) that is configured to receive an external audio signal when device 500 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 504 or transmitted via communication component 516.
  • audio component 510 also includes a speaker for outputting an audio signal.
  • the I/O interface 512 provides an interface between the processing component 502 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor assembly 514 includes one or more sensors for providing device 500 with various aspects of status assessment.
  • sensor assembly 514 can detect an open/closed state of device 500, a relative positioning of components, such as the display and keypad of device 500, and sensor component 514 can also detect a change in position of one component of device 500 or device 500. The presence or absence of user contact with device 500, device 500 orientation or acceleration/deceleration, and temperature variation of device 500.
  • Sensor assembly 514 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 514 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 516 is configured to facilitate wired or wireless communication between device 500 and other devices.
  • the device 500 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • communication component 516 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • the communication component 516 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 500 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 A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • non-transitory computer readable storage medium comprising instructions, such as a memory 504 comprising instructions executable by processor 518 of apparatus 500 to perform the above method.
  • 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, and an optical data storage device.

Abstract

一种屏幕亮度设置方法及装置，属于计算机技术领域。所述方法包括：通过光线传感器获取终端所处环境的环境光的亮度值（101）；检测所述光线传感器是否背对所述环境内的光源（102）；若检测出所述光线传感器背对所述光源，则根据所述亮度值计算第一背光亮度等级，所述第一背光亮度等级高于第二背光亮度等级，所述第二背光亮度等级是所述光线传感器正对所述光源时根据所述亮度值计算得到的背光亮度等级（103）；将所述终端的背光亮度设置为所述第一背光亮度等级（104），解决了光线传感器背对光源时，测得的环境光的亮度值偏低，导致根据该亮度值和光线传感器正对光源时的背光函数计算出的背光亮度等级不准确的问题，达到了提高背光亮度等级的准确性的效果。

Description

屏幕亮度设置方法及装置
相关申请的交叉引用
本申请要求于2015年2月11日提交中国专利局、申请号为201510072593.7的中国专利申请的优先权，以及2015年1月8日提交中国专利局、申请号为201510010144.X的中国专利申请的优先权，以上全部内容通过引用结合在本申请中。
技术领域
本公开涉及计算机技术领域，特别涉及一种屏幕亮度设置方法及装置。
背景技术
自动背光调节是指根据环境光的亮度自动调整终端的屏幕的背光亮度，使得屏幕的背光亮度和环境光呈正相关关系。自动背光调节可以保证屏幕的背光亮度与环境光相适应，以保护用户的视力。
通常，终端的前面板的开孔上安装有光线传感器，当光源产生的环境光穿过开孔进入光线传感器时，终端可以通过光线传感器测量环境光的亮度值，根据该亮度值和光线传感器正对光源时的背光函数计算背光亮度等级，并将计算出的背光亮度设置为该背光亮度等级。
发明内容
为解决光线传感器背对光源时，测得的环境光的亮度值偏低，根据该亮度值和光线传感器正对光源时的背光函数计算得到的背光亮度等级不准确的问题，本公开提供了一种屏幕亮度设置方法及装置。
根据本公开实施例的第一方面，提供一种屏幕亮度设置方法，包括：
通过光线传感器获取终端所处环境的环境光的亮度值；
检测所述光线传感器是否背对所述环境内的光源；
若检测出所述光线传感器背对所述光源，则根据所述亮度值计算第一背光亮度等级，所述第一背光亮度等级高于第二背光亮度等级，所述第二背光亮度等级是所述光线传感器正对所述光源时根据所述亮度值计算得到的背光亮度等级；
将所述终端的背光亮度设置为所述第一背光亮度等级。
根据本公开实施例的第二方面，提供一种屏幕亮度设置装置，包括：
亮度获取模块，被配置为通过光线传感器获取终端所处环境的环境光的亮度值；
第一检测模块，被配置为检测所述光线传感器是否背对所述环境内的光源；
亮度计算模块，被配置为在所述第一检测模块检测出所述光线传感器背对所述光源时，根据所述亮度获取模块获取到的所述亮度值计算第一背光亮度等级，所述第一背光亮度等级高于第二背光亮度等级，所述第二背光亮度等级是所述光线传感器正对所述光源时根据所述亮度值计算得到的背光亮度等级；
第一设置模块，被配置为将所述终端的背光亮度设置为所述亮度计算模块计算出的所述第一背光亮度等级。
根据本公开实施例的第三方面，提供一种屏幕亮度设置装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
通过光线传感器获取终端所处环境的环境光的亮度值；
检测所述光线传感器是否背对所述环境内的光源；
若检测出所述光线传感器背对所述光源，则根据所述亮度值计算第一背光亮度等级，所述第一背光亮度等级高于第二背光亮度等级，所述第二背光亮度等级是所述光线传感器正对所述光源时根据所述亮度值计算得到的背光亮度等级；
将所述终端的背光亮度设置为所述第一背光亮度等级。
本公开的实施例提供的技术方案可以包括以下有益效果：
通过光线传感器获取终端所处环境的环境光的亮度值；检测光线传感器是否背对环境内的光源；若检测出光线传感器背对光源，则根据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；将终端的背光亮度设置为第一背光亮度等级，由于在光线传感器背对光源时，光线传感器获取到的亮度值低于环境光的实际亮度值，因此，背对光源时计算得到的第一背光亮度等级要高于正对光源时计算得到的第二背光亮度等级，解决了光线传感器背对光源时，测得的环境光的亮度值偏低，导致根据该亮度值和光线传感器正对光源时的背光函数计算出的背光亮度等级不准确的问题，达到了提高背光亮度等级的准确性的效果。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本公开说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种屏幕亮度设置方法的流程图。
图2A是根据另一示例性实施例示出的一种屏幕亮度设置方法的流程图。
图2B是根据一示例性实施例示出的一种背光函数的示意图。
图2C是根据一示例性实施例示出的一种背光函数的对比示意图。
图3是根据一示例性实施例示出的一种屏幕亮度设置装置的框图。
图4是根据一示例性实施例示出的一种屏幕亮度设置装置的框图。
图5是根据一示例性实施例示出的一种用于屏幕亮度设置的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
图1是根据一示例性实施例示出的一种屏幕亮度设置方法的流程图，该屏幕亮度设置方法应用于终端中，如图1所示，该屏幕亮度设置方法包括以下步骤。
在步骤101中，通过光线传感器获取终端所处环境的环境光的亮度值。
在步骤102中，检测光线传感器是否背对环境内的光源。
在步骤103中，若检测出光线传感器背对光源，则根据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级。
在步骤104中，将终端的背光亮度设置为第一背光亮度等级。
综上所述，本公开提供的屏幕亮度设置方法，通过光线传感器获取终端所处环境的环境光的亮度值；检测光线传感器是否背对环境内的光源；若检测出光线传感器背对光源，则根据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；将终端的背光亮度设置为第一背光亮度等级，由于在光线传感器背对光源时，光线传感器获取到的亮度值低于环境光的实际亮度值，因此，背对光源时计算得到的第一背光亮度等级要高于正对光源时计算得到的第二背光亮度等级，解决了光线传感器背对光源时，测得的环境光的亮度值偏低，导致 根据该亮度值和光线传感器正对光源时的背光函数计算出的背光亮度等级不准确的问题，达到了提高背光亮度等级的准确性的效果。
图2A是根据另一示例性实施例示出的一种屏幕亮度设置方法的流程图，该屏幕亮度设置方法应用于终端中，如图2A所示，该屏幕亮度设置方法包括如下步骤。
在步骤201中，通过光线传感器获取终端所处环境的环境光的亮度值。
终端所处环境的环境光可以由点光源产生，也可以由其它光源产生。其中，点光源可以是太阳、点亮的电灯等。
在步骤202中，检测光线传感器是否背对环境内的光源。
当光线传感器正对光源时，光线传感器测得的亮度值为环境光的实际亮度值，此时终端可以根据亮度值和第一背光函数计算出背光亮度等级，该第一背光函数是光线传感器正对光源时的背光亮度等级计算函数。由于可以统计出人眼视觉和环境光的亮度值之间的对应关系，因此，可以参照该对应关系，得到第一背光函数的函数图，请参考图2B所示的一种背光函数的示意图，图2B(1)的曲线用于表示用户的视觉与环境光的亮度值之间的对应关系，图2B(2)的曲线用于表示第一背光函数的函数图。
当光线传感器背对光源时，光线传感器测得的亮度值小于环境光的实际亮度值，此时，如果还是根据亮度值和上述第一背光函数计算背光亮度等级，计算得到的背光亮度等级偏低，使得环境光和屏幕的背光亮度的反差较大，对用户的视力伤害较大，因此，终端在根据亮度值计算背光亮度等级之前，还需要检测光线传感器是否背对环境内的光源，再根据检测结果计算背光亮度等级。
本实施例提供了两种检测光线传感器是否背对光源的方法，下面分别对这两种检测方法进行描述：
在第一种检测方法中，检测光线传感器是否背对环境内的光源，包括：
1)确定光线传感器所在的测量平面；
2)通过重力传感器检测测量平面是否面向光源所在方向，光源所在方向为默认方向或用户输入的方向；
3)若测量平面面向光源所在方向，则确定光线传感器正对光源；
4)若测量平面未面向光源所在方向，则确定光线传感器背对光源。
在检测光线传感器是否背对环境内的光源之前，还需要确定光线传感器所在的测量平面。其中，测量平面可以是终端的前面板所在平面，也可以是终端的后面板所在平面，还可以是其他平面，本实施例不作限定。
由于终端在出厂之前，光线传感器在终端中的位置已经固定，因此，光线传感器所在的测量平面是一个已知参数，终端可以直接获取到。通常，光线传感器位于终端的前面板。
在确定出测量平面之后，终端可以通过传感器确定终端的测量平面的朝向，再确定光源所在方向，根据测量平面的朝向和光源所在方向检测光线传感器是否背对光源。
第一，终端通过传感器确定测量平面的朝向的方法有很多种，本实施例以传感器是重力传感器为例进行说明。
终端可以建立坐标系，假设终端的界面为xz平面，其中，终端的中心为坐标原点，指向终端右方的为x轴的正半轴，在终端平面上垂直于x轴的为z轴，xz平面内指向终端上方的为z轴的正半轴，垂直于终端平面的为y轴，xz平面外指向终端上方的为y轴的正半轴，此时，终端可以通过重力传感器测量终端在y轴上的加速度。当加速度方向指向y轴正方向时，确定测量平面朝下；当加速度方向指向y轴负方向时，确定测量平面朝上。
第二，光源所在方向可以是默认方向，如终端的上方；也可以是用户输入的方向。当然，用户还可以对默认方向进行修改，本实施例不作限定。
在用户输入方向时，终端可以提供用于输入光源所在位置的输入框，或，终端可以在界面中显示光源的位置选项，用户根据光源实际位置从各个选项中选择一个选项，终端根据用户选择的选项确定光源的位置，从而确定光源所在方向。比如，终端显示了“光源在终端上方”和“光源在终端下方”这两个选项，若用户选择了“光源在终端上方”的选项，则确定光源所在方向为终端上方。
通常，光源位于终端的上方，当光线传感器位于终端的前面板时，终端可以通过重力传感器检测终端的前面板是否向上放置，若终端的前面板向上放置，则确定光线传感器正对光源；若终端的前面板向下放置，则确定光线传感器背对光源。
在第二种检测方法中，检测光线传感器是否背对环境内的光源，包括：
1)通过终端中预定器件获取环境光的亮度值，预定器件所在的平面与光线传感器所在的平面的面向方向相反，预定器件为另一光线传感器或摄像头；
2)比较光线传感器获取的亮度值和预定器件获取的亮度值；
3)若光线传感器获取的亮度值大于预定器件获取的亮度值，则确定光线传感器正对光源；
4)若光线传感器获取的亮度值小于预定器件获取的亮度值，则确定光线传感器背对光源。
在第一种实现方式中，终端还可以包括预定器件，该预定器件是具有获取环境光的亮度 值的功能的器件，可以是另一光线传感器或摄像头。其中，预定器件所在的平面与光线传感器所在的平面的面向方向相反。比如，当光线传感器位于终端的前面板时，预定器件位于终端的后面板，此时摄像头可以是后置摄像头；当光线传感器位于终端的后面板时，预定器件位于终端的前面板，此时摄像头可以是前置摄像头。
终端可以通过预定器件获取环境光的亮度值，再比较光线传感器获取的亮度值和预定器件获取的亮度值，根据比较结果检测光线传感器是否背对光源。其中，本实施例不限定光线传感器获取亮度值和预定器件获取亮度值的先后顺序。
比如，假设终端通过光线传感器获取的亮度值是400lux，若通过预定器件获取的亮度值是300lux，则确定光线传感器正对光源；若通过预定器件获取的亮度值是500lux，则确定光线传感器背对光源。
在第二种实现方式中，终端可以通过该光线传感器测量两次环境光的亮度值，且这两次的测量平面的朝向相反。若将步骤201中获取到的亮度值作为第一亮度值，则终端可以在测量第一亮度值时记录测量平面面对的方向，再将测量平面背对该方向，通过该光线传感器测得第二亮度值，将第一亮度值和第二亮度值进行比较，若第二亮度值大于第一亮度值，则确定光线传感器背对光源；若第二亮度值小于第一亮度值，则确定光线传感器正对光源。
在步骤203中，若检测出光线传感器背对光源，则检测终端是否正在被用户使用，若检测出终端不在被用户使用，则执行步骤204；若检测出终端正在被用户使用，则触发执行步骤205。
在一种使用场景中，用户将终端放置在一个物体上且光线传感器背对光源，此时，用户不在使用终端，如果设置较高的背光亮度等级，会浪费终端的电量，影响用户体验。因此，在终端设置背光亮度之前，终端还需要检测终端是否正在被用户使用。
其中，检测终端是否正在被用户使用，包括：
1)通过距离传感器检测是否存在与终端之间的距离小于距离阈值的物体；或，
2)通过终端的屏幕检测是否接收到用户触发的操作。
终端可以通过以下两种实现方式中的至少一种检测终端是否正在被用户使用：
在第一种实现方式中，终端可以通过距离传感器获取物体与终端之间的距离，检测该距离是否小于距离阈值；若该距离小于距离阈值，则确定终端被放置在物体上，终端不在被用户使用；若该距离大于距离阈值，则确定终端不是被放置在物体上，终端正在被用户使用。其中，距离传感器与光线传感器位于同一个平面。
在第二种实现方式中，终端可以通过屏幕检测是否接收到用户的操作；若屏幕未接收到 用户的操作，则确定终端不在被用户使用；若屏幕接收到用户的操作，则确定终端正在被用户使用。
在步骤204中，计算第三背光亮度等级，将终端的背光亮度设置为第三背光亮度等级，第三背光亮度等级低于第一背光亮度等级，第一背光亮度等级是光线传感器背对光源时根据亮度值计算得到的亮度等级，结束流程。
当终端不在被用户使用时，终端可以将背光亮度设置为计算出的第三背光亮度等级。其中，第三背光亮度等级可以是根据亮度值计算出的背光亮度等级，也可以是固定等级，还可以是低于第一背光亮度等级的随机等级，本实施例不作限定。其中，第一背光亮度等级是光线传感器背对光源时根据亮度值计算出的背光亮度等级。
在步骤205中，根据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级。
由于在光线传感器背对光源时，光线传感器获取到的亮度值低于环境光的实际亮度值，因此，终端可以对根据第一背光函数计算出第二背光函数，使得根据亮度值和第二背光函数计算得到的第一背光亮度等级大于根据亮度值和第一背光函数计算得到的第二背光亮度等级。其中，本实施例不限定根据第一背光函数计算第二背光函数的方式。请参考图2C所示的一种背光函数的对比示意图，图2C中下方的曲线是第一背光函数的函数图，上方的曲线是第二背光函数的函数图。
可选的，终端也可以不计算第二背光函数，而是根据第二背光亮度等级计算第一背光亮度等级。比如，终端可以将第二背光亮度等级增加预定数值得到第一背光亮度等级，也可以将第二背光亮度等级增加预定比例得到第一背光亮度等级，比如，终端可以设置预定比例为5％-10％之间的数值，本实施例不作限定。
在步骤206中，将终端的背光亮度设置为第一背光亮度等级。
为了便于理解，本实施例以设置屏幕亮度进行举例说明，假设日光灯发出的环境光的亮度值是400lux，在终端正向放置，即光线传感器正对日光灯时，测得的亮度值是400lux，计算得到的第二背光亮度等级是100(0～255范围当中的100)；当终端反向放置，即光线传感器背对日光灯时，假设测得的亮度值是370lux，由于第二背光函数的函数图高于第一背光函数的函数图，此时计算得到的第一背光亮度等级仍然为100，这时终端的背光亮度的背光亮度等级保持不变。
综上所述，本公开提供的屏幕亮度设置方法，通过光线传感器获取终端所处环境的环境光的亮度值；检测光线传感器是否背对环境内的光源；若检测出光线传感器背对光源，则根 据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；将终端的背光亮度设置为第一背光亮度等级，由于在光线传感器背对光源时，光线传感器获取到的亮度值低于环境光的实际亮度值，因此，背对光源时计算得到的第一背光亮度等级要高于正对光源时计算得到的第二背光亮度等级，解决了光线传感器背对光源时，测得的环境光的亮度值偏低，导致根据该亮度值和光线传感器正对光源时的背光函数计算出的背光亮度等级不准确的问题，达到了提高背光亮度等级的准确性的效果。
另外，通过在检测出终端不在被用户使用，则计算第三背光亮度等级，将终端的背光亮度设置为第三背光亮度等级，第三背光亮度等级低于第一背光亮度等级，可以在用户不在使用终端时，调低背光亮度等级，解决了用户不在使用终端时，设置较高的背光亮度等级浪费终端电量的问题，达到了节省终端电量的效果。
图3是根据一示例性实施例示出的一种屏幕亮度设置装置的框图，该屏幕亮度设置装置应用于终端中，如图3所示，该屏幕亮度设置装置包括：亮度获取模块301、第一检测模块302、亮度等级计算模块303和第一设置模块304。
该亮度获取模块301，被配置为通过光线传感器获取终端所处环境的环境光的亮度值；
该第一检测模块302，被配置为检测光线传感器是否背对环境内的光源；
该亮度等级计算模块303，被配置为在第一检测模块302检测出光线传感器背对光源时，根据亮度获取模块301获取到的亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；
该第一设置模块304，被配置为将终端的背光亮度设置为亮度等级计算模块303计算出的第一背光亮度等级。
综上所述，本公开提供的屏幕亮度设置装置，通过光线传感器获取终端所处环境的环境光的亮度值；检测光线传感器是否背对环境内的光源；若检测出光线传感器背对光源，则根据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；将终端的背光亮度设置为第一背光亮度等级，由于在光线传感器背对光源时，光线传感器获取到的亮度值低于环境光的实际亮度值，因此，背对光源时计算得到的第一背光亮度等级要高于正对光源时计算得到的第二背光亮度等级，解决了光线传感器背对光源时，测得的环境光的亮度值偏低，导致根据该亮度值和光线传感器正对光源时的背光函数计算出的背光亮度等级不准确的问题，达 到了提高背光亮度等级的准确性的效果。
图4是根据一示例性实施例示出的一种屏幕亮度设置装置的框图，该屏幕亮度设置装置应用于终端中，如图4所示，该屏幕亮度设置装置包括：亮度获取模块401、第一检测模块402、亮度等级计算模块403和第一设置模块404。
该亮度获取模块401，被配置为通过光线传感器获取终端所处环境的环境光的亮度值；
该第一检测模块402，被配置为检测光线传感器是否背对环境内的光源；
该亮度等级计算模块403，被配置为在第一检测模块402检测出光线传感器背对光源时，根据亮度获取模块401获取到的亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；
该第一设置模块404，被配置为将终端的背光亮度设置为亮度等级计算模块403计算出的第一背光亮度等级。
可选的，本实施例提供的装置，还包括：第二检测模块405、第二设置模块406和操作触发模块407；
该第二检测模块405，被配置为检测终端是否正在被用户使用；
该第二设置模块406，被配置为在第二检测模块405检测出终端不在被用户使用时，计算第三背光亮度等级，将终端的背光亮度设置为第三背光亮度等级，第三背光亮度等级低于第一背光亮度等级，第一背光亮度等级是光线传感器背对光源时根据亮度值计算得到的亮度等级；
该操作触发模块407，被配置为在第二检测模块405检测出终端正在被用户使用时，触发执行根据亮度值计算第一背光亮度等级的操作。
可选的，第二检测模块405，包括：第一检测子模块4051或第二检测子模块4052；
该第一检测子模块4051，被配置为通过距离传感器检测是否存在与终端之间的距离小于距离阈值的物体；或，
该第二检测子模块4052，被配置为通过终端的屏幕检测是否接收到用户触发的操作。
可选的，第一检测模块402，包括：平面确定子模块4021、第三检测子模块4022、第一确定子模块4023和第二确定子模块4024；
该平面确定子模块4021，被配置为确定光线传感器所在的测量平面；
该第三检测子模块4022，被配置为通过重力传感器检测平面确定子模块4021确定的测量平面是否面向光源所在方向，光源所在方向为默认方向或用户输入的方向；
该第一确定子模块4023，被配置为在测量平面面向光源所在方向时，确定光线传感器正对光源；
该第二确定子模块4024，被配置为在测量平面未面向光源所在方向时，确定光线传感器背对光源。
可选的，第一检测模块402，包括：亮度获取子模块4025、亮度比较子模块4026、第三确定子模块4027和第四确定子模块4028；
该亮度获取子模块4025，被配置为通过终端中预定器件获取环境光的亮度值，预定器件所在的平面与光线传感器所在的平面的面向方向相反，预定器件为另一光线传感器或摄像头；
该亮度比较子模块4026，被配置为比较光线传感器获取的亮度值和预定器件获取的亮度值；
该第三确定子模块4027，被配置为在光线传感器获取的亮度值大于预定器件获取的亮度值时，确定光线传感器正对光源；
该第四确定子模块4028，被配置为在光线传感器获取的亮度值小于预定器件获取的亮度值时，确定光线传感器背对光源。
综上所述，本公开提供的屏幕亮度设置装置，通过光线传感器获取终端所处环境的环境光的亮度值；检测光线传感器是否背对环境内的光源；若检测出光线传感器背对光源，则根据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；将终端的背光亮度设置为第一背光亮度等级，由于在光线传感器背对光源时，光线传感器获取到的亮度值低于环境光的实际亮度值，因此，背对光源时计算得到的第一背光亮度等级要高于正对光源时计算得到的第二背光亮度等级，解决了光线传感器背对光源时，测得的环境光的亮度值偏低，导致根据该亮度值和光线传感器正对光源时的背光函数计算出的背光亮度等级不准确的问题，达到了提高背光亮度等级的准确性的效果。
另外，通过在检测出终端不在被用户使用，则计算第三背光亮度等级，将终端的背光亮度设置为第三背光亮度等级，第三背光亮度等级低于第一背光亮度等级，可以在用户不在使用终端时，调低背光亮度等级，解决了用户不在使用终端时，设置较高的背光亮度等级浪费终端电量的问题，达到了节省终端电量的效果。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本公开一示例性实施例提供了一种屏幕亮度设置装置，能够实现本公开提供的屏幕亮度设置方法，该屏幕亮度设置装置包括：处理器、用于存储处理器可执行指令的存储器；
其中，处理器被配置为：
通过光线传感器获取终端所处环境的环境光的亮度值；
检测光线传感器是否背对环境内的光源；
若检测出光线传感器背对光源，则根据亮度值计算第一背光亮度等级，第一背光亮度等级高于第二背光亮度等级，第二背光亮度等级是光线传感器正对光源时根据亮度值计算得到的背光亮度等级；
将终端的背光亮度设置为第一背光亮度等级。
图5是根据一示例性实施例示出的一种用于屏幕亮度设置装置500的框图。例如，装置500可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图5，装置500可以包括以下一个或多个组件：处理组件502，存储器504，电源组件506，多媒体组件508，音频组件510，输入/输出(I/O)的接口512，传感器组件514，以及通信组件516。
处理组件502通常控制装置500的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件502可以包括一个或多个处理器518来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件502可以包括一个或多个模块，便于处理组件502和其他组件之间的交互。例如，处理组件502可以包括多媒体模块，以方便多媒体组件508和处理组件502之间的交互。
存储器504被配置为存储各种类型的数据以支持在装置500的操作。这些数据的示例包括用于在装置500上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器504可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件506为装置500的各种组件提供电力。电源组件506可以包括电源管理系统，一个或多个电源，及其他与为装置500生成、管理和分配电力相关联的组件。
多媒体组件508包括在所述装置500和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏 幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件508包括一个前置摄像头和/或后置摄像头。当装置500处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件510被配置为输出和/或输入音频信号。例如，音频组件510包括一个麦克风(MIC)，当装置500处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器504或经由通信组件516发送。在一些实施例中，音频组件510还包括一个扬声器，用于输出音频信号。
I/O接口512为处理组件502和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件514包括一个或多个传感器，用于为装置500提供各个方面的状态评估。例如，传感器组件514可以检测到装置500的打开/关闭状态，组件的相对定位，例如所述组件为装置500的显示器和小键盘，传感器组件514还可以检测装置500或装置500一个组件的位置改变，用户与装置500接触的存在或不存在，装置500方位或加速/减速和装置500的温度变化。传感器组件514可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件514还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件514还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件516被配置为便于装置500和其他设备之间有线或无线方式的通信。装置500可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件516经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件516还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置500可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器504，上述指令可由装置500的处理器518执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里的公开的后，将容易想到本的其它实施方案。本申请旨在涵盖本的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本的真正范围和精神由下面的权利要求指出。
应当理解的是，本并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本的范围仅由所附的权利要求来限制。

Claims (11)

  1. 一种屏幕亮度设置方法，其特征在于，包括：
    通过光线传感器获取终端所处环境的环境光的亮度值；
    检测所述光线传感器是否背对所述环境内的光源；
    若检测出所述光线传感器背对所述光源，则根据所述亮度值计算第一背光亮度等级，所述第一背光亮度等级高于第二背光亮度等级，所述第二背光亮度等级是所述光线传感器正对所述光源时根据所述亮度值计算得到的亮度等级；
    将所述终端的背光亮度设置为所述第一背光亮度等级。
  2. 根据权利要求1所述的方法，其特征在于，所述方法，还包括：
    检测所述终端是否正在被用户使用；
    若检测出所述终端不在被用户使用，则计算第三背光亮度等级，将所述终端的背光亮度设置为所述第三背光亮度等级，所述第三背光亮度等级低于第一背光亮度等级，所述第一背光亮度等级是所述光线传感器背对所述光源时根据所述亮度值计算得到的亮度等级；
    若检测出所述终端正在被用户使用，则触发执行所述根据所述亮度值计算第一背光亮度等级的步骤。
  3. 根据权利要求2所述的方法，其特征在于，所述检测所述终端是否正在被用户使用，包括：
    通过距离传感器检测是否存在与所述终端之间的距离小于距离阈值的物体；或，
    通过所述终端的屏幕检测是否接收到用户触发的操作。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述检测所述光线传感器是否背对所述环境内的光源，包括：
    确定所述光线传感器所在的测量平面；
    通过重力传感器检测所述测量平面是否面向所述光源所在方向，所述光源所在方向为默认方向或用户输入的方向；
    若所述测量平面面向所述光源所在方向，则确定所述光线传感器正对所述光源；
    若所述测量平面未面向所述光源所在方向，则确定所述光线传感器背对所述光源。
  5. 根据权利要求1至3任一项所述的方法，其特征在于，所述检测所述光线传感器是否背对所述环境内的光源，包括：
    通过所述终端中预定器件获取所述环境光的亮度值，所述预定器件所在的平面与所述光线传感器所在的平面的面向方向相反，所述预定器件为另一光线传感器或摄像头；
    比较所述光线传感器获取的所述亮度值和所述预定器件获取的所述亮度值；
    若所述光线传感器获取的所述亮度值大于所述预定器件获取的所述亮度值，则确定所述光线传感器正对所述光源；
    若所述光线传感器获取的所述亮度值小于所述预定器件获取的所述亮度值，则确定所述光线传感器背对所述光源。
  6. 一种屏幕亮度设置装置，其特征在于，包括：
    亮度获取模块，被配置为通过光线传感器获取终端所处环境的环境光的亮度值；
    第一检测模块，被配置为检测所述光线传感器是否背对所述环境内的光源；
    亮度等级计算模块，被配置为在所述第一检测模块检测出所述光线传感器背对所述光源时，根据所述亮度获取模块获取到的所述亮度值计算第一背光亮度等级，所述第一背光亮度等级高于第二背光亮度等级，所述第二背光亮度等级是所述光线传感器正对所述光源时根据所述亮度值计算得到的背光亮度等级；
    第一设置模块，被配置为将所述终端的背光亮度设置为所述亮度等级计算模块计算出的所述第一背光亮度等级。
  7. 根据权利要求6所述的装置，其特征在于，所述装置，还包括：
    第二检测模块，被配置为检测所述终端是否正在被用户使用；
    第二设置模块，被配置为在所述第二检测模块检测出所述终端不在被用户使用时，计算第三背光亮度等级，将所述终端的背光亮度设置为第二设置模块所述第三背光亮度等级，所述第三背光亮度等级低于所述第一背光亮度等级，所述第一背光亮度等级是所述光线传感器背对所述光源时根据所述亮度值计算得到的亮度等级；
    操作触发模块，被配置为在所述第二检测模块检测出所述终端正在被用户使用时，触发执行所述根据所述亮度值计算第一背光亮度等级的操作。
  8. 根据权利要求7所述的装置，其特征在于，所述第二检测模块，包括：
    第一检测子模块，被配置为通过距离传感器检测是否存在与所述终端之间的距离小于距离阈值的物体；或，
    第二检测子模块，被配置为通过所述终端的屏幕检测是否接收到用户触发的操作。
  9. 根据权利要求6至8任一项所述的装置，其特征在于，所述第一检测模块，包括：
    平面确定子模块，被配置为确定所述光线传感器所在的测量平面；
    第三检测子模块，被配置为通过重力传感器检测所述平面确定子模块确定的所述测量平面是否面向所述光源所在方向，所述光源所在方向为默认方向或用户输入的方向；
    第一确定子模块，被配置为在所述测量平面面向所述光源所在方向时，确定所述光线传感器正对所述光源；
    第二确定子模块，被配置为在所述测量平面未面向所述光源所在方向时，确定所述光线传感器背对所述光源。
  10. 根据权利要求6至8任一项所述的装置，其特征在于，所述第一检测模块，包括：
    亮度获取子模块，被配置为通过所述终端中预定器件获取所述环境光的亮度值，所述预定器件所在的平面与所述光线传感器所在的平面的面向方向相反，所述预定器件为另一光线传感器或摄像头；
    亮度比较子模块，被配置为比较所述光线传感器获取的所述亮度值和所述预定器件获取的所述亮度值；
    第三确定子模块，被配置为在所述光线传感器获取的所述亮度值大于所述预定器件获取的所述亮度值时，确定所述光线传感器正对所述光源；
    第四确定子模块，被配置为在所述光线传感器获取的所述亮度值小于所述预定器件获取的所述亮度值时，确定所述光线传感器背对所述光源。
  11. 一种屏幕亮度设置装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    通过光线传感器获取终端所处环境的环境光的亮度值；
    检测所述光线传感器是否背对所述环境内的光源；
    若检测出所述光线传感器背对所述光源，则根据所述亮度值计算第一背光亮度等级，所述第一背光亮度等级高于第二背光亮度等级，所述第二背光亮度等级是所述光线传感器正对所述光源时根据所述亮度值计算得到的背光亮度等级；
    将所述终端的背光亮度设置为所述第一背光亮度等级。
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