WO2016015586A1 - 一种显示设备的背光调节方法及其显示设备、计算机程序产品和计算机可读记录介质 - Google Patents

一种显示设备的背光调节方法及其显示设备、计算机程序产品和计算机可读记录介质 Download PDF

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Publication number
WO2016015586A1
WO2016015586A1 PCT/CN2015/084821 CN2015084821W WO2016015586A1 WO 2016015586 A1 WO2016015586 A1 WO 2016015586A1 CN 2015084821 W CN2015084821 W CN 2015084821W WO 2016015586 A1 WO2016015586 A1 WO 2016015586A1
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Prior art keywords
brightness
photosensitive
display device
value
backlight
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PCT/CN2015/084821
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English (en)
French (fr)
Inventor
邓伟成
栾心林
唐纯杰
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维沃移动通信有限公司
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Publication of WO2016015586A1 publication Critical patent/WO2016015586A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • 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

Definitions

  • the present disclosure relates to the field of electronic technologies, and in particular, to a backlight adjustment method of a display device and a display device thereof.
  • Today's mobile terminal devices such as mobile phones, generally have the function of automatically adjusting the brightness of the screen backlight, which is usually implemented by a photosensitive sensor.
  • the photosensitive sensor adjusts the brightness of the screen by sensing the brightness of the current ambient light, and increases the brightness of the screen when the ambient light is strong, and reduces the brightness of the screen when the ambient light is weak.
  • the photosensitive sensor is affected by factors such as the structure of the opening, the transmittance of the glass, and the difference in the spectrum of the light wave, and cannot truly reflect the perceived light of the human eye in a dark environment.
  • An embodiment of the text provides, in one aspect, a backlight adjustment method of a display device, including:
  • an embodiment of the present disclosure further provides a display device, including a photosensor and an image sensor, the display device further comprising:
  • a processing module respectively connected to the photosensor and the image sensor for The photosensitive brightness value of the current environment detected by the photosensitive sensor and the current ambient brightness value detected by the image sensor adjust the backlight brightness of the display device.
  • embodiments of the present disclosure also provide a computer program product that, when executed, causes a computer to implement the backlight adjustment method.
  • an embodiment of the present disclosure also provides a computer readable recording medium having recorded therein the computer program product.
  • the photosensitive sensor Since the photosensitive sensor is affected by factors such as the aperture structure, the transmittance of the glass, and the difference in the spectrum of the light wave, it cannot reflect the perceived brightness of the human eye in a low light environment, and the current ambient brightness value acquired by the image sensor is sensitive in a low light environment. Stable, can accurately capture the subtle changes of the current ambient light, therefore, embodiments of the present disclosure adjust the backlight brightness of the display device according to the photosensitive brightness value and the current ambient brightness value detected by the image sensor of the display device, thus The brightness value and the current ambient brightness value detected by the image sensor are more responsive to the true brightness value of the current environment, and the backlight brightness is adjusted accordingly to make it more suitable for human eyes to view, thereby improving the user experience.
  • FIG. 1 is a schematic flow chart of a first embodiment of a backlight adjustment method of a display device of the present disclosure
  • FIG. 2 is a schematic flow chart of a second embodiment of a backlight adjustment method of a display device of the present disclosure
  • step S24 of the present disclosure is a schematic flow chart of an embodiment of step S24 of the present disclosure.
  • FIG. 4 is a schematic flow chart of a third embodiment of a backlight adjustment method of a display device of the present disclosure
  • FIG. 5 is a schematic flow chart of a fourth embodiment of a backlight adjustment method of a display device of the present disclosure
  • FIG. 6 is a schematic structural diagram of a first embodiment of a display device of the present disclosure.
  • FIG. 7 is a schematic structural view of a second embodiment of a display device of the present disclosure.
  • FIG. 8 is a schematic structural view of a fourth embodiment of a display device of the present disclosure.
  • FIG. 1 is a schematic flowchart of a first embodiment of a backlight adjustment method of a display device of the present disclosure.
  • the backlight adjustment method includes:
  • step S11 the current ambient brightness is detected by the photosensitive sensor of the display device to obtain a photosensitive brightness value.
  • the photosensitive sensor may be turned on by the display device in the background, or automatically detected after the backlight of the display device is turned on, or opened by a user-defined operation.
  • Step S12 adjusting the backlight brightness of the display device according to the lightness brightness value and the current ambient brightness value detected by the image sensor of the display device.
  • the camera sensor isp provides a parameter value (ie, the current ambient brightness value) about the current ambient brightness: camera luma.
  • the camera brightness value is mainly used to calculate the shutter time in the camera module.
  • the current camera brightness value is sensitive and stable in low light environment, which can accurately capture the subtle changes of the current ambient light.
  • the feedback is fast and the reliability is high.
  • the camera brightness value can assist the photosensor to make a correct judgment on the brightness of the current ambient light. .
  • the image sensor is preferably a front image sensor on the display device.
  • the image sensor may be an image sensor of a front camera of the mobile phone.
  • the front image sensor is in the same brightness environment as the user's eyes. Therefore, the current ambient brightness value collected by the front image sensor can more accurately capture the ambient light brightness perceived by the user's eyes. Setting the ambient brightness value obtained by the image sensor to adjust the backlight brightness can bring a better user experience.
  • embodiments of the present disclosure adjust the backlight brightness of the display device based on the photosensitive brightness value and the current ambient brightness value detected by the image sensor of the display device, thus, in combination with the photosensitive brightness value and The current ambient brightness value detected by the image sensor is more responsive to the true brightness value of the current environment, and the backlight brightness is adjusted accordingly to make it more suitable for human eyes to view, thereby improving the user experience.
  • FIG. 2 is a schematic flowchart of a second embodiment of a backlight adjustment method of a display device of the present disclosure.
  • the backlight adjustment method includes:
  • step S21 the current ambient brightness is detected by the photosensitive sensor of the display device to obtain a photosensitive brightness value.
  • the photosensitive sensor may be turned on by the display device in the background, or automatically detected after the backlight of the display device is turned on, or opened by a user-defined operation.
  • Step S22 determining that the photosensitive brightness value is within a preset photosensitive brightness range, and detecting the change of the current ambient brightness by the photosensitive sensor to obtain a photosensitive brightness change value.
  • the preset photosensitive brightness range is specifically the brightness range corresponding to the low light environment, and the specific range value may be [1, 20) lux.
  • the so-called light-sensitive brightness change value is the difference between the light-sensitive brightness value currently obtained by the photosensitive sensor and the light-sensitive brightness value obtained in the previous cycle (which may be predefined according to the situation). After the photosensitive brightness value periodically detected by the photosensitive sensor falls into the preset photosensitive brightness range only once or continuously, it can be determined that the photosensitive brightness value is within the preset photosensitive brightness range.
  • the photosensitive brightness value periodically detected by the photosensitive sensor falls into the preset photosensitive brightness range after a plurality of times (for example, 8 times), and then the photosensitive brightness value is determined to be in a preset photosensitive brightness range, thereby avoiding the photosensitive jitter. Brings the image sensor on and off frequently.
  • step S23 the photosensitive brightness change value is compared with the first threshold. If the light brightness change value is greater than the first threshold, step S24 is performed, and if it is less than the first threshold, step S25 is performed.
  • the photosensitive brightness change value is greater than 10 lux, it is determined that the ambient brightness of the display device is changed, and the image brightness value as the current ambient brightness value is acquired by the camera sensor image signal processor, and based on the current ambient brightness.
  • the value adjusts the backlight brightness to make the current backlight brightness more suitable for the current user's environment.
  • step S24 the current ambient brightness is detected by the image sensor, the current ambient brightness value is obtained, and the backlight brightness is adjusted according to the current ambient brightness value.
  • step S24 specifically includes:
  • step S242. Determine whether the image capturing brightness value is acquired N times in the first preset time. If yes, go to step S243. If no, go to step S247.
  • the first preset time may be 3 seconds, and the N times may be 8 times.
  • step S243 Adjust the backlight brightness according to the current ambient brightness value, restart the camera after delaying the second preset time, and perform step S244.
  • the second preset time may be 20 seconds.
  • step S244. Determine whether the image capturing brightness value is acquired N times in the second preset time. If yes, go to step S245. If no, go to step S246.
  • step S247 After the second preset time is delayed, the camera is restarted, and it is determined whether the image capturing brightness value is acquired N times in a first preset time. If yes, step S243 is performed, and if no, step S246 is performed. When it is not possible to obtain sufficient camera brightness values twice in succession, the camera is turned off to prevent the camera from being in the infinite loop of brightness value detection, and at the same time, system resources can be effectively saved.
  • the obtaining of the image capturing brightness value in step S243 includes: acquiring eight image capturing brightness values after starting the camera assisting determination, and taking the maximum of the four calculated average brightness values.
  • step S25 the current backlight brightness is kept unchanged.
  • the ongoing camera assist determination can be immediately stopped without the need for an automatic backlight (so-called camera assist determination is to turn on the camera sensor image signal processor and acquire the image brightness value as the ambient brightness value).
  • camera assist determination is to turn on the camera sensor image signal processor and acquire the image brightness value as the ambient brightness value.
  • the case where the automatic backlight is not needed includes the following: the automatic backlight is automatically turned off while the mobile phone is running; the screen state enters the dark screen, or the screen is off (the manual screen is off or the timeout is off); the proximity sensor state is switched to be close; the mobile phone is in the battery state. Switch to the super power-saving mode.
  • the super power-saving mode does not start the camera-assisted judgment; when entering the call state, the camera-assisted judgment is not started in the call, incoming call, and answering state; the above state occurs when the auxiliary judgment is being performed.
  • the camera assisted judgment is not turned on in any of the above cases.
  • the embodiment of the present disclosure periodically acquires the photosensitive brightness value by the photosensitive sensor, and the photosensitive brightness value is in the preset photosensitive brightness range.
  • the photosensitive brightness change value is greater than the first threshold, the image sensor is turned on to obtain the current ambient brightness value, and after the image sensor obtains the current ambient brightness value successfully, the image sensor is turned off to save power and avoid frequent opening of the image sensor.
  • FIG. 4 is a schematic flowchart of a third embodiment of a backlight adjustment method of a display device of the present disclosure.
  • the backlight adjustment method includes:
  • Step S31 detecting the current ambient brightness by the photosensitive sensor of the display device to obtain a photosensitive brightness value.
  • the photosensitive sensor may be turned on by the display device in the background, or automatically detected after the backlight of the display device is turned on, or opened by a user-defined operation.
  • Step S32 if the photosensitive brightness value enters the preset photosensitive brightness range from outside the preset photosensitive brightness range, the image sensor is turned on to detect the current ambient brightness, and the current ambient brightness is obtained. a value, and adjusting the backlight brightness according to the current ambient brightness value.
  • the preset brightness range is specifically a brightness range corresponding to a low light environment, and the specific range value may be [1, 17) lux.
  • "turning on the image sensor to detect the current ambient brightness, obtaining the current ambient brightness value, and adjusting the backlight brightness according to the current ambient brightness value” is the same as step S24 described in detail above, and therefore will not be described herein.
  • the preset light-sensitive brightness range is redefined to [1, 20) lux, which effectively prevents the ambient brightness from approaching 17 lux.
  • the display device repeatedly switches between different lighting environments, which imposes a burden on the system.
  • the camera sensor image signal processor is turned on and the image brightness value as the ambient brightness value is acquired, and the change of the current ambient brightness is detected by the light sensor to obtain the light-sensitive brightness change value. . If the photosensitive brightness change value is greater than the first threshold, the current ambient brightness is detected by the image sensor, the current ambient brightness value is obtained, and the backlight brightness is adjusted according to the current ambient brightness value; if the photosensitive brightness change value is less than the first threshold, the current backlight brightness is maintained. change.
  • the photosensitive sensor detects that the photosensitive brightness value does not fall within the range of [1, 20) lux, it determines that the current environment has exited the low light environment, and restores the preset photosensitive brightness range value [1, 17) lux.
  • the embodiment of the present disclosure activates the camera to assist the determination and adjust the brightness of the backlight by the real-time detection of the light-sensitive brightness value, and confirms that the light-sensitive brightness value enters the preset light-sensitive brightness range, and provides the user with fast and accurate The experience of using.
  • FIG. 5 is a schematic flowchart of a fourth embodiment of a backlight adjustment method of a display device of the present disclosure.
  • the backlight adjustment method includes:
  • step S41 the current ambient brightness is detected by the photosensitive sensor of the display device to obtain a photosensitive brightness value.
  • the photosensitive sensor may be turned on by the display device in the background, or automatically detected after the backlight of the display device is turned on, or opened by a user-defined operation.
  • Step S42 if it is determined that the light-sensitive brightness value is greater than an upper limit value of the preset light-sensitive brightness range, adjusting a backlight brightness of the display device based on the light-sensitive brightness value;
  • Step S43 if it is determined that the photosensitive brightness value is less than the lower limit value of the preset photosensitive brightness range, the current ambient brightness value is detected by the image sensor, and if the current ambient brightness value is less than the second threshold, The preset minimum backlight brightness is used as the current backlight brightness.
  • the photosensitive brightness value is not greater than the upper limit of the preset light-sensitive brightness range, it is further determined whether the light-sensitive brightness value is less than a lower limit value of the preset light-sensitive brightness range.
  • the lower limit value tends to 0 lux.
  • the photosensor detects that the current photo-luminance value is 0 lux
  • the current ambient brightness value is detected by the image sensor to determine whether the current ambient brightness value is less than the second threshold.
  • the second threshold value is a brightness value corresponding to the usage environment of the all black environment. If yes, it is determined that the current display device usage environment is a full black environment, and the minimum backlight brightness is used as the current backlight brightness.
  • the lower limit value of the photosensitive brightness range is redefined as 2 lux.
  • the embodiment of the present disclosure detects the light-sensitive brightness value in real time, and provides a corresponding solution when the light-sensitive brightness value is outside the preset light-sensitive brightness range, which can effectively save energy of the display device and save system resources. .
  • the embodiments of the backlight adjustment method of the display device of the present disclosure have been described in detail above.
  • the apparatus corresponding to the above method i.e., display device
  • the display device may be a mobile phone, a tablet computer, an MP3 player, an MP4 player or a notebook computer.
  • FIG. 6 is a schematic structural diagram of a first embodiment of a display device of the present disclosure.
  • the display device 100 includes a photosensor 110, an image sensor 120, and a processing module 130.
  • the processing module 130 is respectively connected to the photosensor 110 and the image sensor 120 for adjusting the brightness of the current environment detected by the photosensor 110 and the current ambient brightness value detected by the image sensor 120, and adjusting the display device 110. Backlight brightness.
  • the image sensor 120 may be a camera sensor image signal processor, and the camera sensor image signal processor may provide a parameter value (ie, a current ambient brightness value) regarding the current ambient brightness: the imaging brightness.
  • the camera brightness value is mainly used in the camera module to calculate the shutter time.
  • the current camera brightness value is sensitive and stable in low light conditions, which can accurately capture the current ambient light. The subtle changes, fast feedback, high reliability, through the camera brightness value can help the photosensitive sensor to make a correct judgment of the brightness of the current ambient light.
  • the image sensor 120 is preferably a front image sensor on the display device 100.
  • the image sensor 120 may be an image sensor of a front camera of the mobile phone.
  • the front image sensor is in the same brightness environment as the user's eyes. Therefore, the current ambient brightness value collected by the front image sensor can more accurately capture the ambient light brightness perceived by the user's eyes. Setting the ambient brightness value obtained by the image sensor to adjust the backlight brightness can bring a better user experience.
  • the photosensitive sensor Since the photosensitive sensor is affected by factors such as the aperture structure, the transmittance of the glass, the difference in the spectrum of the light wave, and the like, the human eye cannot be truly reflected in a low light environment, and the image brightness value of the image sensor 120 is sensitive and stable in a low light environment.
  • the subtle changes in the current ambient light can be accurately captured, and thus embodiments of the present disclosure adjust the backlight brightness of the display device based on the lightness brightness value and the current ambient brightness value detected by the image sensor 120 of the display device 100, thus The brightness value and the current ambient brightness value detected by the image sensor are more responsive to the true brightness value of the current environment, and the backlight brightness is adjusted accordingly to make it more suitable for human eyes to view, thereby improving the user experience.
  • FIG. 7 is a schematic structural diagram of a second embodiment of a display device of the present disclosure.
  • the processing module 130 includes:
  • the photosensitive brightness change value obtaining unit 131 is configured to determine that the light-sensitive brightness value detected by the light-sensitive sensor is within a preset light-sensitive brightness range, and the change of the current ambient brightness is detected by the light-sensitive sensor to obtain a light-sensitive brightness change value;
  • the preset photosensitive brightness range is specifically the brightness range corresponding to the low light environment, and the specific range value may be [1, 20) lux.
  • the so-called light-sensitive brightness change value is the difference between the light-sensitive brightness value currently obtained by the photosensitive sensor and the light-sensitive brightness value obtained in the previous cycle (which may be predefined according to the situation). After the photosensitive brightness value periodically detected by the photosensitive sensor falls into the preset photosensitive brightness range only once or continuously, it can be determined that the photosensitive brightness value is within the preset photosensitive brightness range.
  • the photosensitive brightness value periodically detected by the photosensitive sensor falls into the preset photosensitive brightness range after a plurality of times (for example, 8 times), and then the photosensitive brightness value is determined to be in a preset photosensitive brightness range, thereby avoiding the photosensitive jitter. Brings the image sensor on and off frequently.
  • the first adjusting unit 132 is configured to: if the photosensitive brightness change value acquiring unit obtains the photosensitive light If the degree change value is greater than the first threshold, the current ambient brightness is detected by the image sensor, the current ambient brightness value is obtained, and the backlight brightness is adjusted according to the current ambient brightness value; if the photosensitive brightness change value is smaller than the first The threshold keeps the current backlight brightness unchanged.
  • the photosensitive brightness change value is greater than 10 lux
  • the camera brightness value is obtained as the current ambient brightness value by the camera sensor image signal processor, and based on the current environment.
  • the brightness value adjusts the brightness of the backlight to make the current backlight brightness more suitable for the current user's environment.
  • the backlight brightness may be adjusted only according to the current ambient brightness value, or the backlight brightness may be adjusted according to the current ambient brightness value and the current photosensitive brightness value.
  • the ongoing camera assist determination can be immediately stopped without the need for an automatic backlight (so-called camera assist determination is to turn on the camera sensor image signal processor and acquire the image brightness value as the ambient brightness value).
  • camera assist determination is to turn on the camera sensor image signal processor and acquire the image brightness value as the ambient brightness value.
  • the case where the automatic backlight is not needed includes the following: the automatic backlight is automatically turned off while the mobile phone is running; the screen state enters the dark screen, or the screen is off (the manual screen is off or the timeout is off); the proximity sensor state is switched to be close; the mobile phone is in the battery state. Switch to the super power-saving mode.
  • the super power-saving mode does not start the camera-assisted judgment; when entering the call state, the camera-assisted judgment is not started in the call, incoming call, and answering state; the above state occurs when the auxiliary judgment is being performed.
  • the camera assisted judgment is not turned on in any of the above cases.
  • the embodiment of the present disclosure periodically acquires the photosensitive brightness value by the photosensitive sensor, and the photosensitive brightness value is in the preset photosensitive brightness range.
  • the photosensitive brightness change value is greater than the first threshold, the image sensor is turned on to obtain the current ambient brightness value, and after the image sensor obtains the current ambient brightness value successfully, the image sensor is turned off to save power and avoid frequent opening of the image sensor.
  • the processing module is further configured to: if the photosensitive brightness value detected by the photosensitive sensor is from a preset photosensitive brightness range After entering the preset photosensitive brightness range, the image sensor is turned on to detect the current ambient brightness, the current ambient brightness value is obtained, and the backlight brightness is adjusted according to the current ambient brightness value.
  • the preset brightness range is specifically a brightness range corresponding to a low light environment, and the specific range value may be [1, 17) lux.
  • step S24 "turning on the image sensor to detect the current ambient brightness, obtaining the current ambient brightness value, and adjusting the backlight brightness according to the current ambient brightness value” is the same as step S24 described in detail above, and therefore will not be described herein.
  • the preset light-sensitive brightness range is redefined to [1, 20) lux, which effectively prevents the ambient brightness from approaching 17 lux.
  • the display device repeatedly switches between different lighting environments, which imposes a burden on the system.
  • the camera sensor image signal processor is turned on and the image brightness value as the ambient brightness value is acquired, and the change of the current ambient brightness is detected by the light sensor to obtain the light-sensitive brightness change value. . If the photosensitive brightness change value is greater than the first threshold, the current ambient brightness is detected by the image sensor, the current ambient brightness value is obtained, and the backlight brightness is adjusted according to the current ambient brightness value; if the photosensitive brightness change value is less than the first threshold, the current backlight brightness is maintained. change.
  • the photosensitive sensor detects that the photosensitive brightness value does not fall within the range of [1, 20) lux, it determines that the current environment has exited the low light environment, and restores the preset photosensitive brightness range value [1, 17) lux.
  • the camera assists the determination and adjusts the brightness of the backlight to give the user a fast and accurate use experience.
  • FIG. 8 is a schematic structural diagram of a fourth embodiment of a display device of the present disclosure.
  • the processing module 110 further includes:
  • a second adjusting unit 133 configured to adjust a backlight brightness of the display device based on the photosensitive brightness value if it is determined that the photosensitive brightness value detected by the photosensitive sensor 120 is greater than an upper limit value of the preset photosensitive brightness range ;
  • the third adjusting unit 134 is configured to detect, by the image sensor 120, a current ambient brightness value, if the light-sensitive brightness value is less than a lower limit value of the preset light-sensitive brightness range, If the current ambient brightness value is less than the second threshold, the preset minimum backlight brightness is taken as the current backlight brightness.
  • the photosensitive brightness value is not greater than the upper limit of the preset light-sensitive brightness range, further determining whether the light-sensitive brightness value is less than a lower limit value of the preset light-sensitive brightness range, and if so, detecting the current through the image sensor
  • the ambient brightness value is used to determine whether the current ambient brightness value is less than the second threshold.
  • the second threshold value is a brightness value corresponding to a low light or full black environment, and if yes, determining the current display device.
  • the use environment is a low-light or all-black environment, and the minimum backlight brightness is used as the current backlight brightness, which can effectively save the energy of the display device.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

一种显示设备（100）的背光调节方法，涉及电子技术领域，该方法包括：通过显示设备（100）的光敏传感器（110）检测当前环境亮度，得到光敏亮度值（S11）；根据光敏亮度值，以及显示设备（100）的图像传感器（120）检测的当前环境亮度值，调节显示设备（100）的背光亮度（S12）。此外，还提供了一种显示设备（100），按上述方法进行控制，该方法和设备（100）可实现对环境光的准确判断，用户体验好。

Description

一种显示设备的背光调节方法及其显示设备、计算机程序产品和计算机可读记录介质
相关申请的交叉引用
本申请主张在2014年7月31日在中国提交的中国专利申请号No.201410375403.4的优先权，其全部内容通过引用包含于此。
技术领域
本公开文本涉及电子技术领域，尤其涉及一种显示设备的背光调节方法及其显示设备。
背景技术
现在的移动终端设备如手机一般都有自动调节屏幕背光亮度的功能，通常采用光敏传感器来实现。光敏传感器通过感知当前环境光亮度来调节屏幕亮度，当环境光强时，提高屏幕亮度，当环境光弱时，降低屏幕亮度。
在实现本公开文本的过程中，发明人发现现有技术中存在如下问题：
光敏传感器受开孔结构、玻璃透光率、光波频谱差异等因素影响，无法在暗环境下真实反映人眼感知光亮。
发明内容
为克服现有技术中光敏传感器受开孔结构、玻璃透光率、光波频谱差异等因素影响，无法在暗环境下真实反映人眼感知光亮，且采集到的数据误差很大等问题，本公开文本的实施例一方面提供了一种显示设备的背光调节方法，包括：
通过所述显示设备的光敏传感器检测当前环境亮度，得到光敏亮度值；
根据所述光敏亮度值，以及所述显示设备的图像传感器检测的当前环境亮度值，调节所述显示设备的背光亮度。另一方面，本公开文本的实施例还提供了一种显示设备，包括光敏传感器和图像传感器，所述显示设备还包括：
处理模块，分别与所述光敏传感器、所述图像传感器连接，用于根据所 述光敏传感器检测到的当前环境的光敏亮度值，以及所述图像传感器检测到的当前环境亮度值，调节所述显示设备的背光亮度。
另一方面，本公开文本的实施例还提供了一种计算机程序产品，当所述计算机程序产品被执行时使得计算机实现所述背光调节方法。
另一方面，本公开文本的实施例还提供了一种计算机可读记录介质，在其中记录有所述的计算机程序产品。
由于光敏传感器受开孔结构、玻璃透光率、光波频谱差异等因素影响，无法在弱光环境下真实反映人眼感知光亮，而图像传感器的获取的当前环境亮度值在弱光环境下敏感且稳定，可以精确地捕捉当前环境光线的细微改变，因此，本公开文本的实施例根据光敏亮度值，以及显示设备的图像传感器检测的当前环境亮度值，调节显示设备的背光亮度，这样，结合光敏亮度值和图像传感器检测的当前环境亮度值，更能反应当前环境的真实亮度值，相应地调节背光亮度使得更适于人眼观看，提高了用户体验。
附图说明
为了更清楚地说明本公开文本的实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开文本的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开文本的显示设备的背光调节方法的第一实施例的流程示意图；
图2是本公开文本的显示设备的背光调节方法的第二实施例的流程示意图；
图3是本公开文本的步骤S24的实施例的流程示意图；
图4是本公开文本的显示设备的背光调节方法的第三实施例的流程示意图；
图5是本公开文本的显示设备的背光调节方法的第四实施例的流程示意图；
图6是本公开文本的显示设备的第一实施例的结构示意图；
图7是本公开文本的显示设备的第二实施例的结构示意图；以及
图8是本公开文本的显示设备的第四实施例的结构示意图。
具体实施方式
下面结合附图和实施例，对本公开文本的具体实施方式做进一步描述。以下实施例仅用于说明本公开文本，但不用来限制本公开文本的范围。
为使本公开文本实施例的目的、技术方案和优点更加清楚，下面将结合本公开文本实施例的附图，对本公开文本实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开文本的一部分实施例，而不是全部的实施例。基于所描述的本公开文本的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开文本所属领域内具有一般技能的人士所理解的通常意义。本公开文本专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”、“前”、“后”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
为了使本公开文本所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本公开文本进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本公开文本，并不用于限定本公开文本。
请参照图1，是本公开文本的显示设备的背光调节方法的第一实施例的流程示意图。该背光调节方法包括：
步骤S11，通过显示设备的光敏传感器检测当前环境亮度，得到光敏亮度值。所述光敏传感器可以是显示设备后台默认开启的、或者是检测到显示设备背光开启后自动开启的、或者是由用户自定义操作开启的。
步骤S12，根据光敏亮度值，以及显示设备的图像传感器检测的当前环境亮度值，调节显示设备的背光亮度。
摄像头传感器图像信号处理器(camera sensor isp)可以提供一个关于当前环境亮度的参数值(即当前环境亮度值)：摄像亮度(camera luma)。摄像亮度值在摄像头(camera)模块主要用于计算快门时间。这里我们可以将当前摄像亮度值作为图像传感器检测的当前环境亮度值。摄像亮度值在弱光环境下敏感且稳定，可以精确地捕捉当前环境光线的细微改变，反馈迅速、可靠性高，通过摄像亮度值可以辅助光敏传感器对当前环境光的明亮程度做出正确的判断。
在本实施例中，所述图像传感器优选为显示设备上的前置图像传感器，以手机为例，所述图像传感器可以为手机的前置摄像头的图像传感器。一般情况下，前置的图像传感器与用户的眼睛处于同一亮度环境中，因此，通过前置的图像传感器采集的当前环境亮度值，更能准确地获取用户眼睛所感知的环境光亮度，根据前置图像传感器获取的环境亮度值来调整背光亮度可以带来更佳的用户体验。
由于光敏传感器受开孔结构、玻璃透光率、光波频谱差异等因素影响，无法在弱光环境下真实反映人眼感知光亮，而图像传感器的摄像亮度值在弱光环境下敏感且稳定，可以精确地捕捉当前环境光线的细微改变，因此，本公开文本的实施例根据光敏亮度值，以及显示设备的图像传感器检测的当前环境亮度值，调节显示设备的背光亮度，这样，结合光敏亮度值和图像传感器检测的当前环境亮度值，更能反应当前环境的真实亮度值，相应地调节背光亮度使得更适于人眼观看，提高了用户体验。
请参照图2，是本公开文本的显示设备的背光调节方法的第二实施例的流程示意图。该背光调节方法包括：
步骤S21，通过显示设备的光敏传感器检测当前环境亮度，得到光敏亮度值。所述光敏传感器可以是显示设备后台默认开启的、或者是检测到显示设备背光开启后自动开启的、或者是由用户自定义操作开启的。
步骤S22，确定光敏亮度值位于预设的光敏亮度范围之内，通过所述光敏传感器检测当前环境亮度的变化，得到光敏亮度变化值。
预设的光敏亮度范围具体为弱光环境所对应的亮度范围，其具体范围值可为[1，20)lux。所谓光敏亮度变化值即为光敏传感器当前获取的光敏亮度值和上一周期(该周期可以根据情况预定义)获取的光敏亮度值的差值。在通过光敏传感器周期性检测的光敏亮度值仅一次或连续多次落入预设的光敏亮度范围后，即可确定光敏亮度值位于预设的光敏亮度范围之内。本步骤中，优选光敏传感器周期性检测的光敏亮度值连续多次(如8次)落入预设的光敏亮度范围后，则确定光敏亮度值位于预设的光敏亮度范围，从而避免由于光敏抖动带来图像传感器的频繁开启和关闭。
步骤S23，将光敏亮度变化值与第一阈值比较，若光敏亮度变化值大于第一阈值，则执行步骤S24，若小于第一阈值，则执行步骤S25。
在本步骤中，若光敏亮度变化值大于10lux，则确定显示设备当前所处的环境亮度发生了改变，通过摄像头传感器图像信号处理器获取作为当前环境亮度值的摄像亮度值，并基于当前环境亮度值对背光亮度进行调节，以使当前背光亮度更适合当前用户的使用环境。
步骤S24，通过图像传感器检测当前环境亮度，得到当前环境亮度值，根据当前环境亮度值调节背光亮度。
在本步骤中，在通过图像传感器成功获取当前环境亮度值后，可以仅根据当前环境亮度值调节背光亮度，也可以根据当前环境亮度值和当前光敏亮度值调节背光亮度。优选地，如图3所示，步骤S24具体包括：
S241，启动摄像头。
S242，判断第一预设时间内是否连续N次获取摄像亮度值，若是，则执行步骤S243，若否，则执行步骤S247。其中，第一预设时间可以为3秒，N次可以为8次。
S243，根据当前环境亮度值调节背光亮度，延迟第二预设时间后再次启动摄像头，并执行步骤S244。其中，第二预设时间可以为20秒。
S244，判断第二预设时间内是否连续N次获取摄像亮度值，若是，则执行步骤S245，若否，则执行步骤S246。
S245，参考光敏亮度值和第二预设时间前、后两次获取的摄像亮度值，调节背光亮度，并执行S246。
S246，关闭摄像头。
S247，延迟第二预设时间后再次启动摄像头，判断第一预设时间内是否连续N次获取摄像亮度值，若是，则执行步骤S243，若否，则执行步骤S246。当连续两次无法获取足够的摄像亮度值时，关闭摄像头，防止摄像头始终处于亮度值检测的死循环中，同时，能有效节约***资源。
其中，步骤S243中对摄像亮度值的获取包括：在启动摄像头辅助判断后会获取8个摄像亮度值，并取最大的4个计算平均亮度值。
步骤S25，保持当前背光亮度不变。
在本实施例中，在不需要自动背光的情况下可以立即停止正在进行的摄像头辅助判断(所谓开启摄像头辅助判断即开启摄像头传感器图像信号处理器并获取作为环境亮度值的摄像亮度值)。其中不需要自动背光的情况包含以下几种：手机正在运行中自动关闭自动背光；屏幕状态进入暗屏，或者灭屏(手动灭屏或者超时灭屏)；接近传感器状态切换为靠近；手机续航状态切换为超级省电模式，同时，超级省电模式下一律不启动摄像头辅助判断；进入通话状态，呼叫、呼入、接听状态下均不启动摄像头辅助判断；正在进行辅助判断时发生上面的状态，需要立即停止辅助判断时。上述任一情况均不开启摄像头辅助判断。
由于长时间开启图像传感器会很快消耗掉显示设备特别是手机的电能，因此，本公开文本的实施例由光敏传感器周期性地获取光敏亮度值，在光敏亮度值位于预设的光敏亮度范围，且光敏亮度变化值大于第一阈值时，才开启图像传感器获取当前环境亮度值，并在图像传感器获取当前环境亮度值成功后，关闭图像传感器，以达到省电和避免频繁开启图像传感器的目的。
请参照图4，是本公开文本的显示设备的背光调节方法的第三实施例的流程示意图。该背光调节方法包括：
步骤S31，通过显示设备的光敏传感器检测当前环境亮度，得到光敏亮度值。所述光敏传感器可以是显示设备后台默认开启的、或者是检测到显示设备背光开启后自动开启的、或者是由用户自定义操作开启的。
步骤S32，若所述光敏亮度值由预设的光敏亮度范围之外进入预设的光敏亮度范围之内，则开启图像传感器检测当前环境亮度，得到当前环境亮度 值，并根据所述当前环境亮度值调节背光亮度。其中，预设的光敏亮度范围具体为弱光环境所对应的亮度范围，其具体范围值可为[1，17)lux。本步骤中，“开启图像传感器检测当前环境亮度，得到当前环境亮度值，并根据所述当前环境亮度值调节背光亮度”与在上文中详细介绍的步骤S24相同，故在此不赘述。
在确定光敏亮度值位于预设的光敏亮度范围之内(即弱光环境下)后，将预设的光敏亮度范围重新定义至[1，20)lux，可有效防止因环境亮度接近17lux而导致显示设备在不同的光线环境下反复切换，给***造成负担。
进一步地，在确认显示设备当前位于弱光环境下时，开启摄像头传感器图像信号处理器并获取作为环境亮度值的摄像亮度值，通过所述光敏传感器检测当前环境亮度的变化，得到光敏亮度变化值。若光敏亮度变化值大于第一阈值，则通过图像传感器检测当前环境亮度，得到当前环境亮度值，根据当前环境亮度值调节背光亮度；若光敏亮度变化值小于第一阈值，则保持当前背光亮度不变。
进一步地，若光敏传感器检测到光敏亮度值任有一次未落在[1，20)lux范围内，则判断当前环境退出了弱光环境，并恢复所述预设的光敏亮度范围值[1，17)lux。
本公开文本的实施例通过对光敏亮度值的实时检测，在确认光敏亮度值进入预设的光敏亮度范围之内的第一时间，启动摄像头辅助判断并对背光亮度进行调节，给用户以快速准确的使用体验。
请参照图5，是本公开文本的显示设备的背光调节方法的第四实施例的流程示意图。该背光调节方法包括：
步骤S41，通过显示设备的光敏传感器检测当前环境亮度，得到光敏亮度值。
所述光敏传感器可以是显示设备后台默认开启的、或者是检测到显示设备背光开启后自动开启的、或者是由用户自定义操作开启的。
步骤S42，若确定所述光敏亮度值大于所述预设的光敏亮度范围的上限值，则基于所述光敏亮度值，调节所述显示设备的背光亮度；
在本实施例中，当所述光敏亮度值大于所述预设的光敏亮度范围的上限 时，为了简化判断流程，节省***资源，关闭摄像亮度辅助判断，通过光敏传感器对背光亮度进行控制。
步骤S43，若确定所述光敏亮度值小于所述预设的光敏亮度范围的下限值，则通过所述图像传感器检测当前环境亮度值，若所述当前环境亮度值小于第二阈值，则将预设的最小背光亮度作为当前背光亮度。
当所述光敏亮度值不大于所述预设的光敏亮度范围的上限时，进一步判断所述光敏亮度值是否小于所述预设的光敏亮度范围的下限值，在本实施例中，取所述下限值趋于0lux，当光敏传感器检测到当前光敏亮度值为0lux时，通过图像传感器检测当前环境亮度值，判断当前环境亮度值是否小于第二阀值，在本实施例中，所述第二阀值为使用环境为全黑环境对应的亮度值，若是，则判断当前显示设备的使用环境为全黑环境，使用最小背光亮度作为当前背光亮度。同理，为了进一步避免光敏抖动，在判断当前显示设备的使用环境为全黑环境后，将所述光敏亮度范围的下限值重定义为2lux。
本公开文本的实施例通过实时对光敏亮度值进行检测，当所述光敏亮度值位于所述预设的光敏亮度范围之外时，提供相应的解决方案，能有效节约显示设备能源，节省***资源。
上文对本公开文本的显示设备的背光调节方法的实施例作了详细介绍。下面将相应于上述方法的装置(即显示设备)作进一步阐述。其中，显示设备可以是手机、平板电脑、MP3播放器、MP4播放器或笔记本电脑等。
请参照图6，是本公开文本的显示设备的第一实施例的结构示意图。
显示设备100包括：光敏传感器110、图像传感器120和处理模块130。
其中，处理模块130，分别与光敏传感器110、图像传感器120连接，用于根据光敏传感器110检测到的当前环境的光敏亮度值，以及图像传感器120检测到的当前环境亮度值，调节显示设备110的背光亮度。
在本实施例中，所述图像传感器120可以为摄像头传感器图像信号处理器，摄像头传感器图像信号处理器可以提供一个关于当前环境亮度的参数值(即当前环境亮度值)：摄像亮度。摄像亮度值在摄像头模块主要用于计算快门时间。这里我们可以将当前摄像亮度值作为图像传感器检测的当前环境亮度值。摄像亮度值在弱光环境下敏感且稳定，可以精确地捕捉当前环境光线 的细微改变，反馈迅速、可靠性高，通过摄像亮度值可以辅助光敏传感器对当前环境光的明亮程度做出正确的判断。
在本实施例中，所述图像传感器120优选为显示设备100上的前置图像传感器，以手机为例，所述图像传感器120可以为手机的前置摄像头的图像传感器。一般情况下，前置的图像传感器与用户的眼睛处于同一亮度环境中，因此，通过前置的图像传感器采集的当前环境亮度值，更能准确地获取用户眼睛所感知的环境光亮度，根据前置图像传感器获取的环境亮度值来调整背光亮度可以带来更佳的用户体验。
由于光敏传感器受开孔结构、玻璃透光率、光波频谱差异等因素影响，无法在弱光环境下真实反映人眼感知光亮，而图像传感器120的摄像亮度值在弱光环境下敏感且稳定，可以精确地捕捉当前环境光线的细微改变，因此，本公开文本的实施例根据光敏亮度值，以及显示设备100的图像传感器120检测的当前环境亮度值，调节显示设备的背光亮度，这样，结合光敏亮度值和图像传感器检测的当前环境亮度值，更能反应当前环境的真实亮度值，相应地调节背光亮度使得更适于人眼观看，提高了用户体验。
请参照图7，是本公开文本的显示设备的第二实施例的结构示意图。
与上述显示设备的第一实施例不同的是，所述处理模块130包括：
光敏亮度变化值获取单元131，用于确定所述光敏传感器检测的光敏亮度值位于预设的光敏亮度范围之内，通过所述光敏传感器检测当前环境亮度的变化，得到光敏亮度变化值；
预设的光敏亮度范围具体为弱光环境所对应的亮度范围，其具体范围值可为[1，20)lux。所谓光敏亮度变化值即为光敏传感器当前获取的光敏亮度值和上一周期(该周期可以根据情况预定义)获取的光敏亮度值的差值。在通过光敏传感器周期性检测的光敏亮度值仅一次或连续多次落入预设的光敏亮度范围后，即可确定光敏亮度值位于预设的光敏亮度范围之内。本步骤中，优选光敏传感器周期性检测的光敏亮度值连续多次(如8次)落入预设的光敏亮度范围后，则确定光敏亮度值位于预设的光敏亮度范围，从而避免由于光敏抖动带来图像传感器的频繁开启和关闭。
第一调节单元132，用于若所述光敏亮度变化值获取单元获取的光敏亮 度变化值大于第一阈值，则通过所述图像传感器检测当前环境亮度，得到所述当前环境亮度值，根据所述当前环境亮度值调节背光亮度；若所述光敏亮度变化值小于所述第一阈值，则保持当前背光亮度不变。
在本实施例中，若光敏亮度变化值大于10lux，则确定显示设备当前所处的环境亮度发生了改变，通过摄像头传感器图像信号处理器获取作为当前环境亮度值的摄像亮度值，并基于当前环境亮度值对背光亮度进行调节，以使当前背光亮度更适合当前用户的使用环境。
在本实施例中，在通过图像传感器成功获取当前环境亮度值后，可以仅根据当前环境亮度值调节背光亮度，也可以根据当前环境亮度值和当前光敏亮度值调节背光亮度。
在本实施例中，在不需要自动背光的情况下可以立即停止正在进行的摄像头辅助判断(所谓开启摄像头辅助判断即开启摄像头传感器图像信号处理器并获取作为环境亮度值的摄像亮度值)。其中不需要自动背光的情况包含以下几种：手机正在运行中自动关闭自动背光；屏幕状态进入暗屏，或者灭屏(手动灭屏或者超时灭屏)；接近传感器状态切换为靠近；手机续航状态切换为超级省电模式，同时，超级省电模式下一律不启动摄像头辅助判断；进入通话状态，呼叫、呼入、接听状态下均不启动摄像头辅助判断；正在进行辅助判断时发生上面的状态，需要立即停止辅助判断时。上述任一情况均不开启摄像头辅助判断。
由于长时间开启图像传感器会很快消耗掉显示设备特别是手机的电能，因此，本公开文本的实施例由光敏传感器周期性地获取光敏亮度值，在光敏亮度值位于预设的光敏亮度范围，且光敏亮度变化值大于第一阈值时，才开启图像传感器获取当前环境亮度值，并在图像传感器获取当前环境亮度值成功后，关闭图像传感器，以达到省电和避免频繁开启图像传感器的目的。
作为本公开文本的显示设备的第三实施例，与上述显示设备的第二实施例不同的是，所述处理模块进一步用于若所述光敏传感器检测的光敏亮度值由预设的光敏亮度范围之外进入预设的光敏亮度范围之内，则开启图像传感器检测当前环境亮度，得到当前环境亮度值，并根据所述当前环境亮度值调节背光亮度。
其中，预设的光敏亮度范围具体为弱光环境所对应的亮度范围，其具体范围值可为[1，17)lux。本步骤中，“开启图像传感器检测当前环境亮度，得到当前环境亮度值，并根据所述当前环境亮度值调节背光亮度”与在上文中详细介绍的步骤S24相同，故在此不赘述。
在确定光敏亮度值位于预设的光敏亮度范围之内(即弱光环境下)后，将预设的光敏亮度范围重新定义至[1，20)lux，可有效防止因环境亮度接近17lux而导致显示设备在不同的光线环境下反复切换，给***造成负担。
进一步地，在确认显示设备当前位于弱光环境下时，开启摄像头传感器图像信号处理器并获取作为环境亮度值的摄像亮度值，通过所述光敏传感器检测当前环境亮度的变化，得到光敏亮度变化值。若光敏亮度变化值大于第一阈值，则通过图像传感器检测当前环境亮度，得到当前环境亮度值，根据当前环境亮度值调节背光亮度；若光敏亮度变化值小于第一阈值，则保持当前背光亮度不变。
进一步地，若光敏传感器检测到光敏亮度值任有一次未落在[1，20)lux范围内，则判断当前环境退出了弱光环境，并恢复所述预设的光敏亮度范围值[1，17)lux。
通过对光敏亮度值的实时检测，在确认光敏亮度值进入预设的光敏亮度范围之内的第一时间，启动摄像头辅助判断并对背光亮度进行调节，给用户以快速准确的使用体验。
请参照图8，是本公开文本的显示设备的第四实施例的结构示意图。
与上述显示设备的第一实施例不同的是，所述处理模块110还包括：
第二调节单元133，用于若确定所述光敏传感器120检测的光敏亮度值大于所述预设的光敏亮度范围的上限值，则基于所述光敏亮度值，调节所述显示设备的背光亮度；
在本实施例中，当所述光敏亮度值大于所述预设的光敏亮度范围的上限时，为了简化判断流程，节省***资源，关闭摄像亮度辅助判断，仅通过光敏传感器对背光亮度进行控制。
第三调节单元134，用于若确定所述光敏亮度值小于所述预设的光敏亮度范围的下限值，则通过所述图像传感器120检测当前环境亮度值，若所述 当前环境亮度值小于第二阈值，则将预设的最小背光亮度作为当前背光亮度。
当所述光敏亮度值不大于所述预设的光敏亮度范围的上限时，进一步判断所述光敏亮度值是否小于所述预设的光敏亮度范围的下限值，若是，则通过图像传感器检测当前环境亮度值，判断当前环境亮度值是否小于第二阀值，在本实施例中，所述第二阀值为使用环境为微光或全黑环境对应的亮度值，若是，则判断当前显示设备的使用环境为微光或全黑环境，使用最小背光亮度作为当前背光亮度，能有效节约显示设备能源。
通过实时对光敏亮度值进行检测，当所述光敏亮度值位于所述预设的光敏亮度范围之外时，提供相应的解决方案，能有效节约显示设备能源，节省***资源。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成的，所述的程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
以上所述仅为本公开文本的可选实施例而已，并不用以限制本公开文本，凡在本公开文本的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本公开文本的保护范围之内。

Claims (12)

  1. 一种显示设备的背光调节方法，包括：
    通过所述显示设备的光敏传感器检测当前环境亮度，得到光敏亮度值；
    根据所述光敏亮度值，以及所述显示设备的图像传感器检测的当前环境亮度值，调节所述显示设备的背光亮度。
  2. 如权利要求1所述的背光调节方法，其中，所述根据所述光敏亮度值，以及所述显示设备的图像传感器检测的当前环境亮度值，调节所述显示设备的背光亮度，包括：
    若确定所述光敏亮度值位于预设的光敏亮度范围之内，则通过所述光敏传感器检测当前环境亮度的变化，得到光敏亮度变化值；
    若所述光敏亮度变化值大于第一阈值，则通过所述图像传感器检测当前环境亮度，得到所述当前环境亮度值，根据所述当前环境亮度值调节背光亮度；
    若所述光敏亮度变化值小于所述第一阈值，则保持当前背光亮度不变。
  3. 如权利要求1所述的背光调节方法，其中，所述根据所述光敏亮度值，以及所述显示设备的图像传感器检测的当前环境亮度值，调节所述显示设备的背光亮度，包括：
    若所述光敏亮度值由预设的光敏亮度范围之外进入预设的光敏亮度范围之内，则开启图像传感器检测当前环境亮度，得到当前环境亮度值，并根据所述当前环境亮度值调节背光亮度。
  4. 如权利要求1的所述的背光调节方法，其中，所述根据所述光敏亮度值，以及所述显示设备的图像传感器检测的当前环境亮度值，调节所述显示设备的背光亮度，包括：
    若确定所述光敏亮度值大于所述预设的光敏亮度范围的上限值，则基于所述光敏亮度值，调节所述显示设备的背光亮度；
    若确定所述光敏亮度值小于所述预设的光敏亮度范围的下限值，则通过所述图像传感器检测当前环境亮度值，若所述当前环境亮度值小于第二阈值，则将预设的最小背光亮度作为当前背光亮度。
  5. 如权利要求1-4中任一项所述的背光调节方法，其中，所述图像传感器为所述显示设备上的前置图像传感器。
  6. 一种显示设备，包括光敏传感器和图像传感器，所述显示设备还包括：
    处理模块，分别与所述光敏传感器、所述图像传感器连接，用于根据所述光敏传感器检测到的当前环境的光敏亮度值，以及所述图像传感器检测到的当前环境亮度值，调节所述显示设备的背光亮度。
  7. 如权利要求6所述的显示设备，其中，所述处理模块包括：
    光敏亮度变化值获取单元，用于若确定所述光敏传感器检测的光敏亮度值位于预设的光敏亮度范围之内，则通过所述光敏传感器检测当前环境亮度的变化，得到光敏亮度变化值；
    第一调节单元，用于若所述光敏亮度变化值获取单元获取的光敏亮度变化值大于第一阈值，则通过所述图像传感器检测当前环境亮度，得到所述当前环境亮度值，根据所述当前环境亮度值调节背光亮度；若所述光敏亮度变化值小于所述第一阈值，则保持当前背光亮度不变。
  8. 如权利要求6所述的显示设备，其中，所述处理模块进一步用于若所述光敏传感器检测的光敏亮度值由预设的光敏亮度范围之外进入预设的光敏亮度范围之内，则开启图像传感器检测当前环境亮度，得到当前环境亮度值，并根据所述当前环境亮度值调节背光亮度。
  9. 如权利要求6所述的显示设备，其中，所述处理模块包括：
    第二调节单元，用于若确定所述光敏传感器检测的光敏亮度值大于所述预设的光敏亮度范围的上限值，则基于所述光敏亮度值，调节所述显示设备的背光亮度；
    第三调节单元，用于若确定所述光敏亮度值小于所述预设的光敏亮度范围的下限值，则通过所述图像传感器检测当前环境亮度值，若所述当前环境亮度值小于第二阈值，则将预设的最小背光亮度作为当前背光亮度。
  10. 如权利要求6-9中任一项所述的显示设备，其中，所述图像传感器为所述显示设备上的前置图像传感器。
  11. 一种计算机程序产品，当所述计算机程序产品被执行时使得计算机实现如权利要求1-4中任一项所述的背光调节方法。
  12. 一种计算机可读记录介质，在其中记录有如权利要求11所述的计算机程序产品。
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