WO2016150112A1 - Method and apparatus for adjusting brightness of display screen - Google Patents

Method and apparatus for adjusting brightness of display screen Download PDF

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Publication number
WO2016150112A1
WO2016150112A1 PCT/CN2015/089359 CN2015089359W WO2016150112A1 WO 2016150112 A1 WO2016150112 A1 WO 2016150112A1 CN 2015089359 W CN2015089359 W CN 2015089359W WO 2016150112 A1 WO2016150112 A1 WO 2016150112A1
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WO
WIPO (PCT)
Prior art keywords
display screen
brightness
value
backlight
angle
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PCT/CN2015/089359
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French (fr)
Chinese (zh)
Inventor
张晓亮
冯磊
孙卫山
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中兴通讯股份有限公司
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Publication of WO2016150112A1 publication Critical patent/WO2016150112A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—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 using liquid crystals
    • 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

Definitions

  • This application relates to, but is not limited to, the field of display technology.
  • FIG. 1 is a schematic diagram showing the brightness of the LCD observed at different viewing positions of the display screen. As shown in Figure 1, the abscissa indicates the angle between the user's viewing position on the display surface and the vertical direction of the display screen, and the ordinate indicates that it is observed. LCD brightness value. It can be seen from Fig.
  • the angle between the user's viewing position and the vertical direction of the display screen changes obliquely from 0 degrees to 90 degrees (ie, the user's viewing position is inclined from perpendicular to the display screen surface to be parallel to the display screen surface).
  • the brightness of the observed LCD display is constantly decreasing. Therefore, under the sun (or strong external ambient light), the user often feels that the display screen is not clear, because the brightness of the observed LCD display is low, and the brightness of the reflected light of the ambient light is enhanced.
  • the same OLED screen also has such defects.
  • the related smart mobile terminal products are all equipped with light sensing devices, which can understand the brightness of the ambient light at any time, thereby adjusting the display.
  • the brightness of the screen For example, the smart mobile terminal stores the correspondence between the ambient light brightness and the brightness of the display screen.
  • the brightness of the display screen increases as the brightness of the ambient light decreases, and the brightness of the corresponding display screen is determined according to the monitored ambient light brightness. Adjust the brightness of the display.
  • the ambient light brightness can also be judged by using a camera. This method is often used in an environment where photographing is performed.
  • the ambient light brightness is judged by the image of the framing, thereby adjusting the brightness of the imaged image.
  • the front camera of the smart mobile terminal can also determine the brightness of the ambient light for adjusting the brightness of the display screen.
  • the display brightness adjustment method of the related art only adjusts the brightness of the display screen according to the ambient light brightness, and cannot solve the problem that the user observes the position when the user views the display screen under strong ambient light conditions. At the same time, the observed brightness of the display screen is lowered, which causes the user to have a poor effect on viewing the display screen, thereby affecting the user experience.
  • the present invention provides a method and device for adjusting the brightness of a display screen, which can adjust the brightness of the display screen according to the ambient light brightness in time, thereby improving the viewing effect of the display screen, thereby improving the user experience.
  • a method for adjusting brightness of a display screen comprising: obtaining a reference backlight data of a display screen according to a current ambient light brightness value when the ambient light brightness value of the display screen exceeds a set value; acquiring an image facing the display screen And determining location data of the information, and determining compensation backlight data of the display screen according to the location data; adjusting backlight brightness of the display screen according to the reference backlight data and the compensation backlight data.
  • the method further includes: presetting a correspondence between the ambient light brightness value and the display screen brightness value;
  • the obtaining the reference backlight data of the display screen according to the current ambient light brightness value comprises:
  • the display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
  • determining the compensated backlight data of the display screen according to the location data includes:
  • the degree compensation value is used as the compensation backlight data of the display screen.
  • the relationship between the included angle and the brightness compensation value of the display screen is:
  • the display brightness compensation value is set to 0; and / or,
  • the display brightness compensation value is set to 50% of the reference brightness value; and / or,
  • the display brightness compensation value is set to 30% of the reference brightness value; and / or,
  • the display brightness compensation value is set to 20% of the reference brightness value
  • the reference brightness value is a display screen brightness value determined according to a current ambient light brightness value.
  • the method before the acquiring location data of the identification information in the image collected by the display screen, the method further includes: collecting the surface by using one of three pixels of red, green, and blue by using an interlaced scanning method. An image of the display.
  • a device for adjusting brightness of a display screen comprising: a reference backlight processing module, configured to: when the ambient light brightness value of the display screen exceeds a set value, obtain a reference backlight data of the display screen according to the current ambient light brightness value;
  • the processing module is configured to: obtain position data facing the identification information in the image collected by the display screen, and determine compensation backlight data of the display screen according to the position data; and
  • the backlight adjustment module is configured to: according to the reference backlight data and The compensated backlight data adjusts the backlight brightness of the display screen.
  • a correspondence between the ambient light brightness value and the display screen brightness value is pre-stored in the reference backlight processing module
  • the reference backlight processing module is configured to:
  • the display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
  • the identification processing module is configured to:
  • the display brightness compensation value is used as compensation backlight data for the display.
  • the relationship between the included angle and the brightness compensation value of the display screen is:
  • the display brightness compensation value is set to 0; and / or,
  • the display brightness compensation value is set to 50% of the reference brightness value; and / or,
  • the display brightness compensation value is set to 30% of the reference brightness value; and / or,
  • the display brightness compensation value is set to 20% of the reference brightness value
  • the reference brightness value is a display screen brightness value determined according to a current ambient light brightness value.
  • the device further includes an image acquisition module, configured to: collect the image facing the display screen by using one of red, green, and blue pixels by using an interlaced scanning method.
  • an image acquisition module configured to: collect the image facing the display screen by using one of red, green, and blue pixels by using an interlaced scanning method.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the embodiment of the present invention determines the reference backlight data of the display screen by using the ambient light brightness value, and determines the compensation backlight data of the display screen by identifying the position data of the identification information (such as the human eye or the human face) in the image collected by the display screen, according to
  • the reference backlight data and the compensated backlight data enable intelligent adjustment of the display brightness.
  • the embodiment of the present invention compensates for the problem that the brightness of the display screen is lowered due to the difference in the viewing position of the display screen by the user by recognizing the position data of the identification information, and realizing the light according to the ambient light. Brightness adjusts the brightness of the display in time, thus ensuring that the user can clearly see the content displayed on the display under the condition of strong external ambient light, thereby improving the effect and experience of the user viewing the display.
  • FIG. 1 is a schematic diagram showing the brightness of an LCD observed in different viewing positions of the display screen in the related art
  • FIG. 2 is a flowchart of a method for adjusting brightness of a display screen according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an apparatus for adjusting brightness of a display screen according to an embodiment of the present invention
  • FIG. 4 is a diagram showing an angular distribution of a camera according to an embodiment of the present invention.
  • the method for adjusting the brightness of a display screen includes:
  • Step 11 When the ambient light brightness value of the display screen exceeds the set value, the reference backlight data of the display screen is obtained according to the current ambient light brightness value.
  • the setting value in this step is a preset value of the ambient light brightness, which can be preset by the smart mobile terminal manufacturer.
  • the ambient light brightness value of the display screen exceeds the set value, it indicates that the display screen is in a strong ambient light condition, and the current ambient light brightness has an influence on the user identification display screen information. How to adjust the brightness of the display.
  • the method further includes: presetting the correspondence between the ambient light brightness value and the display brightness value; and obtaining the reference backlight data of the display screen according to the current ambient light brightness value in the step includes:
  • the display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
  • the backlight current value required to obtain the brightness value of the display screen may be: the brightness value of the display screen is converted into the backlight current value required to obtain the brightness value of the display screen according to the number of backlights of the display screen.
  • Step 12 Acquire an image facing the display.
  • the image facing the display screen collected in this step includes: using an interlaced scanning method, capturing an image facing the display screen by one of three pixels of red, green and blue.
  • the reference backlight data of the display screen and the image of the display facing the display according to the current ambient light brightness value in steps 11 and 12 are not strictly time-ordered, as long as the display screen is located.
  • step 12 may be performed first, and then step 11 is performed, that is, the image facing the display screen is collected first, and then the ambient light brightness value of the display screen is obtained, and whether the current ambient light brightness value exceeds the setting is determined.
  • the value when the ambient light brightness value exceeds the set value, obtains the reference backlight data of the display screen according to the current ambient light brightness value.
  • Step 13 Acquire location data of the identification information in the collected image, and determine compensation backlight data of the display screen according to the location data.
  • the identification information as an example of a human eye or a human face
  • determining the compensation backlight data of the display screen according to the position data of the human eye or the human face includes:
  • the angle between the human eye or the face and the vertical direction of the display screen is obtained, and according to the corresponding relationship between the preset angle and the brightness compensation value of the display screen, the brightness of the display screen corresponding to the obtained angle is determined.
  • the compensation value is used to calculate a backlight current value required to obtain the brightness compensation value of the display screen, and the backlight current value is used as compensation backlight data of the display screen;
  • the angle between the human eye or the face and the vertical direction of the display screen is obtained, and according to the corresponding relationship between the preset angle and the brightness compensation value of the display screen, the brightness of the display screen corresponding to the obtained angle is determined.
  • the compensation value is used as the compensation backlight data of the display screen.
  • the position data is, for example, the distance from the imaging position of the human eye or the human face to the origin of the coordinate in the XY coordinate system in which the center of the image controller of the camera is the coordinate origin.
  • the incident ray 21 enters the image controller CCD 23 of the camera through the camera lens 22.
  • the human eye or face is imaged on the CCD 23 of the camera, and the XY coordinate system is established with the center of the CCD 23 as the coordinate origin, with a certain distance as the radius (where the distance is obtained according to the actual camera measurement data), and the measurement is perpendicular to
  • the camera lens spreads out at an angle of 0-10 degrees that is, when the angle between the human eye or the face and the vertical direction of the display screen is not less than 0 degrees and not more than 10 degrees
  • the distance of the imaging position on the CCD 23 from the origin of the coordinate is obtained.
  • the sequential measurement obtains an angle of 10-25 degrees perpendicular to the camera lens (ie, the angle between the human eye or the face perpendicular to the display screen is greater than 10 degrees and not greater than 25 degrees), and the angle of 25-40 degrees ( That is, the angle between the human eye or the face and the vertical direction of the display screen is greater than 25 degrees and not more than 40 degrees), and the angle of 40-60 degrees (ie, the angle between the human eye or the face and the vertical direction of the display screen is greater than 40 degrees and When it is not more than 60 degrees, the distance of the imaging position on the CCD 23 from the origin of the coordinate is finally obtained, and finally a plurality of regions 24, 25, 26, 27 as shown in Fig. 4 are obtained. According to this, the angle between the human eye or the face and the vertical direction of the display screen can be determined according to the position data of the human eye or the human face.
  • the brightness compensation value obtained by the display screen is also different.
  • the relationship between the angle of the angle and the brightness compensation value of the display screen is: when the angle is not less than 0 degrees and not more than 10 degrees, the brightness compensation value of the display screen is set to 0; and/or, when the angle is greater than 10 degrees and When the angle is not more than 25 degrees, the display brightness compensation value is set to 50% of the reference brightness value; and/or, when the angle is greater than 25 degrees and not more than 40 degrees, the display brightness compensation value is set to 30 of the reference brightness value. %; and / or, when the angle is greater than 40 degrees and not greater than 60 degrees, the display brightness compensation value is set to 20% of the reference brightness value; wherein, the reference brightness value is determined according to the current ambient light brightness value Brightness value.
  • calculating the backlight current value required to obtain the display brightness compensation value may be: converting the display brightness compensation value to the backlight current required to obtain the display brightness compensation value according to the number of backlights of the display screen value.
  • Step 14 Adjust the backlight brightness of the display according to the reference backlight data and the compensated backlight data.
  • the backlight brightness of the display screen is adjusted according to the reference backlight data and the compensation backlight data: adding the determined reference backlight data and the compensation backlight data to obtain backlight data of the display screen, Adjust the backlight brightness of the display according to the backlight data of the display.
  • the determined reference backlight data and the compensated backlight data are respectively a backlight current value converted according to the display screen luminance value obtained in step 11 and a backlight current value converted according to the display screen luminance compensation value obtained in step 13. Therefore, the backlight data of the display screen obtained by adding the reference backlight data and the compensated backlight data is a backlight current value. The backlight brightness of the display screen is adjusted according to the backlight current value.
  • the determined reference backlight data and the compensated backlight data are the display screen brightness value obtained according to step 11 and the display screen brightness compensation value obtained according to step 13, respectively. Therefore, the backlight data of the display screen obtained by adding the reference backlight data and the compensated backlight data is a luminance value.
  • the luminance value is converted to the backlight current value required to obtain the luminance value according to the number of backlights of the display screen.
  • the backlight brightness of the display screen is adjusted according to the backlight current value.
  • the brightness value is converted into a corresponding backlight current value according to the number of backlights of the display screen.
  • the apparatus for adjusting the brightness of the display screen includes a reference backlight processing module 31, an identification processing module 32, and a backlight adjustment module 33;
  • the reference backlight processing module 31 is configured to: when the ambient light brightness value of the display screen exceeds the set value, obtain the reference backlight data of the display screen according to the current ambient light brightness value;
  • the identification processing module 32 is configured to: acquire location data facing the identification information in the image collected by the display screen, and determine compensation backlight data of the display screen according to the location data;
  • the backlight adjustment module 33 is configured to adjust the backlight brightness of the display screen according to the reference backlight data and the compensation backlight data.
  • the apparatus further includes an image acquisition module 34 configured to: collect an image facing the display screen.
  • the device for adjusting the brightness of the display screen provided in this embodiment is, for example, disposed on a mobile terminal, and the image capturing module is, for example, a front camera of the mobile terminal, or a camera that can be rotated to the display screen of the mobile terminal, and is configured to: capture the front of the camera in real time.
  • the image acquisition module is a former camera.
  • the current camera can also be set to: when the display backlight is adjusted, in order to save energy, the front camera is not in full working state, and can be collected by one of red, green and blue pixels by means of interlaced scanning.
  • the head can also be set to: when the backlight is adjusted, the captured image is not displayed on the display and is only stored in the storage area.
  • the ambient light sensor is used to monitor the ambient light brightness.
  • the ambient light brightness value obtained by the ambient light sensor exceeds the set value, it indicates that the ambient light brightness is sufficient to affect the display information of the human eye recognition mobile terminal.
  • the front camera is activated to take an image.
  • the front camera can also be used to determine the ambient light level.
  • the setting value of the ambient light brightness is a preset value of the preset ambient light brightness, which can be preset by the mobile terminal manufacturer.
  • the reference backlight processing module pre-stores the correspondence between the ambient light brightness value and the display screen brightness value, and the reference backlight processing module is configured to:
  • the display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
  • the identification processing module extracts an image of the display screen collected by the image acquisition module from the storage area, identifies the location of the identification information in the image, and obtains the location data of the identified identification information, and obtains the obtained
  • the location data identifying the information determines the compensated backlight data for the display.
  • the identification information is, for example, a human eye or a human face.
  • the acquisition process for compensating the backlight data is the same as that described in the above method, and thus will not be described herein.
  • the backlight adjustment module is configured to: adjust the brightness of the display screen based on the ambient light brightness value obtained by the ambient light sensor, and then according to the location information of the identification information (such as a human eye or a human face) (mainly a person) The angle between the eye or face and the vertical direction of the display) continues to adjust the backlight brightness of the display. That is, the backlight adjustment module automatically adjusts the backlight brightness of the display screen according to the backlight data of the display screen obtained from the reference backlight data and the compensation backlight data.
  • the reference backlight processing module determines a brightness value of the display screen by using an ambient light brightness value obtained by the ambient light sensor, and calculates a backlight current required to obtain the brightness value of the display screen. Value (ie the reference backlight current value).
  • the recognition processing module obtains an angle between the human eye or the face and the vertical direction of the display screen according to the position data of the human eye or the human face.
  • the brightness of the measured display screen is lowered, according to the degree of brightness reduction, the display screen
  • the brightness is compensated, that is, according to the corresponding relationship between the preset angle and the brightness compensation value of the display screen, the brightness compensation value of the display screen corresponding to the obtained angle is determined, and the current value required to obtain the brightness compensation value of the display screen is calculated (ie, Compensate for backlight current value).
  • the backlight adjustment module increases the current value (ie, the compensated backlight current value) of the display screen compensated by the position of the human eye or the face to the former (ie, the reference backlight current value), and obtains the backlight data of the adjusted display screen.
  • the maximum current value is set, and when the total backlight current value of the display reaches the maximum current value, the backlight current value does not increase.
  • the backlight brightness of the display screen is adjusted with the maximum current value.
  • the display brightness value (or the display brightness compensation value) can be converted into a backlight current value required to obtain the display brightness value (or the display brightness compensation value).
  • the reference backlight processing module determines a reference display brightness value (ie, a reference backlight brightness value) by the ambient light brightness value obtained by the ambient light sensor.
  • the recognition processing module obtains an angle between the human eye or the face and the vertical direction of the display screen according to the human eye or the face position data. At this angle, the brightness of the measured display screen is lowered, according to the degree of brightness reduction, on the display screen.
  • the brightness is compensated, that is, according to the corresponding relationship between the preset angle and the display brightness compensation value, the brightness compensation value of the display screen corresponding to the obtained angle is determined.
  • the backlight adjustment module adds the reference backlight brightness value to the display brightness compensation value to obtain a backlight brightness value of the display screen (ie, as backlight data of the display screen), and calculates a backlight current value required to obtain the backlight brightness value.
  • the backlight power management chip of the display adjusts the backlight brightness of the display in real time according to the obtained backlight current value.
  • set the maximum current value when the total backlight current value of the display reaches the maximum current value, the backlight current value no longer increases, that is, the maximum current value is used to adjust the display. Backlight brightness.
  • the front camera is used as the recognition condition to identify the location data of the identification information (such as the human eye or the human face), and the compensated backlight data of the display screen is determined according to the obtained position data, and the ambient light is used.
  • the brightness value is used to determine the reference backlight data of the display screen, and the intelligent adjustment of the brightness of the display screen is realized according to the backlight data of the display screen determined by the reference backlight data and the compensation backlight data.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the present invention compensates for the problem that the display screen brightness is lowered due to the difference in the viewing position of the display screen by the identification information (such as the human eye or the human face) relative to the display screen, and realizes the brightness and the identification according to the ambient light.
  • the position of the information adjusts the brightness of the display in time, thereby ensuring that the user can clearly see the content displayed on the display under relatively strong external ambient light conditions, thereby improving the effect and experience of the user viewing the display screen.

Abstract

A method and an apparatus for adjusting the brightness of a display screen. The method comprises: acquiring reference backlight data of a display screen according to the brightness value of current ambient light when a brightness value of ambient light where the display screen is located exceeds a set value; acquiring position data of identification information in an image collected facing the display screen and determining compensation backlight data of the display screen according to the position data; and adjusting the backlight brightness of the display screen according to the reference backlight data and the compensation backlight data. The problem that the brightness of a display screen is reduced caused by different observation positions of a user to the display screen is compensated by identifying a position of the identification information (such as human eyes or a human face) with respect to the display screen, such that the brightness of the display screen is adjusted in time according to the brightness of ambient light and the position of the identification information, thereby ensuring that a user can also see the contents displayed on the display screen clearly in relatively strong external ambient light conditions, and improving the effect for a user viewing the display screen and the use experience.

Description

一种调节显示屏亮度的方法及装置Method and device for adjusting brightness of display screen 技术领域Technical field
本申请涉及但不限于显示屏技术领域。This application relates to, but is not limited to, the field of display technology.
背景技术Background technique
随着移动通信技术的不断发展，智能移动终端(例如智能手机、平板电脑等)已经成为我们生活中必不可少的产品。目前，智能移动终端采用的显示屏主流技术有两种，一种是液晶显示(LCD，Liquid Crystal Display)，另一种是有机电激光显示(OLED，Organic Light-Emitting Diode)。图1所示为位于不同显示屏观察位置观察到的LCD亮度的示意图，如图1所示，横坐标表示用户对显示屏表面的观察位置与显示屏垂直方向的夹角，纵坐标表示观察到的LCD亮度值。由图1可以看到，用户的观察位置与显示屏垂直方向的夹角从0度向90度方向倾斜变化时(即，用户的观察位置从垂直于显示屏表面倾斜至平行于显示屏表面)，在相同的背光亮度条件下，观察到的LCD显示屏的亮度不断变低。因此，在太阳光底下(或较强的外部环境光下)用户经常会觉得显示屏幕看不清楚，就是因为观察到的LCD显示屏的亮度变低，而环境光的反射光亮度增强造成的。同理OLED屏幕也有此类的缺陷。With the continuous development of mobile communication technologies, smart mobile terminals (such as smart phones, tablets, etc.) have become an indispensable product in our lives. At present, there are two mainstream display technologies for smart mobile terminals, one is Liquid Crystal Display (LCD), and the other is Organic Light-Emitting Diode (OLED). Figure 1 is a schematic diagram showing the brightness of the LCD observed at different viewing positions of the display screen. As shown in Figure 1, the abscissa indicates the angle between the user's viewing position on the display surface and the vertical direction of the display screen, and the ordinate indicates that it is observed. LCD brightness value. It can be seen from Fig. 1 that the angle between the user's viewing position and the vertical direction of the display screen changes obliquely from 0 degrees to 90 degrees (ie, the user's viewing position is inclined from perpendicular to the display screen surface to be parallel to the display screen surface). Under the same backlight brightness conditions, the brightness of the observed LCD display is constantly decreasing. Therefore, under the sun (or strong external ambient light), the user often feels that the display screen is not clear, because the brightness of the observed LCD display is low, and the brightness of the reflected light of the ambient light is enhanced. The same OLED screen also has such defects.
相关技术中，针对显示屏亮度调节的问题，为了在节约电能和显示效果之间取得一个平衡，相关技术的智能移动终端产品都配置有光感器件，能够随时了解环境光的亮度，进而调节显示屏的亮度。举例而言，智能移动终端存储有环境光亮度与显示屏亮度的对应关系，如显示屏亮度随着环境光亮度的减弱而增加，根据监测到的环境光亮度，确定相应的显示屏亮度，进而进行显示屏亮度的调节。此外，环境光亮度也可使用摄像头来进行判断，这种方式经常用于拍照的环境，摄像头取景后，通过取景的图像判断环境光亮度，从而调节成像图像的亮度。另外，智能移动终端的前置摄像头也可判断环境光的亮度，用于调节显示屏的亮度。In the related art, in order to balance the brightness of the display screen, in order to achieve a balance between saving power and display effect, the related smart mobile terminal products are all equipped with light sensing devices, which can understand the brightness of the ambient light at any time, thereby adjusting the display. The brightness of the screen. For example, the smart mobile terminal stores the correspondence between the ambient light brightness and the brightness of the display screen. For example, the brightness of the display screen increases as the brightness of the ambient light decreases, and the brightness of the corresponding display screen is determined according to the monitored ambient light brightness. Adjust the brightness of the display. In addition, the ambient light brightness can also be judged by using a camera. This method is often used in an environment where photographing is performed. After the camera is framing, the ambient light brightness is judged by the image of the framing, thereby adjusting the brightness of the imaged image. In addition, the front camera of the smart mobile terminal can also determine the brightness of the ambient light for adjusting the brightness of the display screen.
然而，相关技术的显示屏亮度调节方法仅根据环境光亮度调节显示屏亮度，无法解决在强环境光条件下，用户观看显示屏时因为用户的观察位置不 同而造成观察到的显示屏亮度降低的问题，从而造成了用户观看显示屏的效果较差，进而影响了用户体验。However, the display brightness adjustment method of the related art only adjusts the brightness of the display screen according to the ambient light brightness, and cannot solve the problem that the user observes the position when the user views the display screen under strong ambient light conditions. At the same time, the observed brightness of the display screen is lowered, which causes the user to have a poor effect on viewing the display screen, thereby affecting the user experience.
发明内容Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.
本文提供一种调节显示屏亮度的方法及装置，能够根据环境光亮度及时调整显示屏的亮度，提高显示屏的观看效果，从而提升用户体验。The present invention provides a method and device for adjusting the brightness of a display screen, which can adjust the brightness of the display screen according to the ambient light brightness in time, thereby improving the viewing effect of the display screen, thereby improving the user experience.
一种调节显示屏亮度的方法，包括：当显示屏所处的环境光亮度值超过设定值时，根据当前环境光亮度值获取显示屏的基准背光数据；获取面对显示屏采集的图像中的标识信息的位置数据，并根据所述位置数据确定显示屏的补偿背光数据；根据所述基准背光数据与所述补偿背光数据调节显示屏的背光亮度。A method for adjusting brightness of a display screen, comprising: obtaining a reference backlight data of a display screen according to a current ambient light brightness value when the ambient light brightness value of the display screen exceeds a set value; acquiring an image facing the display screen And determining location data of the information, and determining compensation backlight data of the display screen according to the location data; adjusting backlight brightness of the display screen according to the reference backlight data and the compensation backlight data.
可选地，该方法还包括：预先设置环境光亮度值与显示屏亮度值的对应关系；Optionally, the method further includes: presetting a correspondence between the ambient light brightness value and the display screen brightness value;
所述根据当前环境光亮度值获取显示屏的基准背光数据包括：The obtaining the reference backlight data of the display screen according to the current ambient light brightness value comprises:
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，并计算获得所述显示屏亮度值所需的背光电流值，将该背光电流值作为所述显示屏的基准背光数据；或者，Searching, according to a preset correspondence relationship, a display screen brightness value corresponding to the current ambient light brightness value, and calculating a backlight current value required to obtain the display screen brightness value, and using the backlight current value as the reference backlight data of the display screen; or,
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，将查找出的显示屏亮度值作为所述显示屏的基准背光数据。The display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
可选地，所述根据所述位置数据确定显示屏的补偿背光数据包括：Optionally, determining the compensated backlight data of the display screen according to the location data includes:
根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，计算获得所述显示屏亮度补偿值所需的背光电流值，将该背光电流值作为所述显示屏的补偿背光数据；或者，Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining a brightness compensation value of the display screen corresponding to the obtained angle according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, and obtaining the calculated value a backlight current value required for the brightness compensation value of the display screen, and the backlight current value is used as compensation backlight data of the display screen; or
根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮 度补偿值，将该显示屏亮度补偿值作为所述显示屏的补偿背光数据。Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining, according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, the display screen corresponding to the obtained angle is bright The degree compensation value is used as the compensation backlight data of the display screen.
可选地，所述夹角与显示屏亮度补偿值的关系为：Optionally, the relationship between the included angle and the brightness compensation value of the display screen is:
当夹角为不小于0度且不大于10度时，显示屏亮度补偿值设置为0；和/或者，When the angle is not less than 0 degrees and not more than 10 degrees, the display brightness compensation value is set to 0; and / or,
当夹角为大于10度且不大于25度时，显示屏亮度补偿值设置为基准亮度值的50％；和/或者，When the angle is greater than 10 degrees and not greater than 25 degrees, the display brightness compensation value is set to 50% of the reference brightness value; and / or,
当夹角为大于25度且不大于40度时，显示屏亮度补偿值设置为基准亮度值的30％；和/或者，When the angle is greater than 25 degrees and not greater than 40 degrees, the display brightness compensation value is set to 30% of the reference brightness value; and / or,
当夹角为大于40度且不大于60度时，显示屏亮度补偿值设置为基准亮度值的20％；When the angle is greater than 40 degrees and not greater than 60 degrees, the display brightness compensation value is set to 20% of the reference brightness value;
其中，所述基准亮度值为根据当前环境光亮度值确定的显示屏亮度值。The reference brightness value is a display screen brightness value determined according to a current ambient light brightness value.
可选地，所述获取面对显示屏采集的图像中的标识信息的位置数据之前，该方法还包括：利用隔行扫描方式，通过红、绿、蓝三种像素中的一种采集所述面对显示屏的图像。Optionally, before the acquiring location data of the identification information in the image collected by the display screen, the method further includes: collecting the surface by using one of three pixels of red, green, and blue by using an interlaced scanning method. An image of the display.
一种调节显示屏亮度的装置，包括：基准背光处理模块，设置为：当显示屏所处的环境光亮度值超过设定值时，根据当前环境光亮度值获取显示屏的基准背光数据；识别处理模块，设置为：获取面对显示屏采集的图像中的标识信息的位置数据，并根据所述位置数据确定显示屏的补偿背光数据；背光调节模块，设置为：根据所述基准背光数据与所述补偿背光数据调节显示屏的背光亮度。A device for adjusting brightness of a display screen, comprising: a reference backlight processing module, configured to: when the ambient light brightness value of the display screen exceeds a set value, obtain a reference backlight data of the display screen according to the current ambient light brightness value; The processing module is configured to: obtain position data facing the identification information in the image collected by the display screen, and determine compensation backlight data of the display screen according to the position data; and the backlight adjustment module is configured to: according to the reference backlight data and The compensated backlight data adjusts the backlight brightness of the display screen.
可选地，所述基准背光处理模块中预先存储有环境光亮度值与显示屏亮度值的对应关系；Optionally, a correspondence between the ambient light brightness value and the display screen brightness value is pre-stored in the reference backlight processing module;
所述基准背光处理模块是设置为：The reference backlight processing module is configured to:
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，并计算获得所述显示屏亮度值所需的背光电流值，将该背光电流值作为所述显示屏的基准背光数据；或者，Searching, according to a preset correspondence relationship, a display screen brightness value corresponding to the current ambient light brightness value, and calculating a backlight current value required to obtain the display screen brightness value, and using the backlight current value as the reference backlight data of the display screen; or,
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，将查找出的显示屏亮度值作为所述显示屏的基准背光数据。 The display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
可选地，所述识别处理模块是设置为：Optionally, the identification processing module is configured to:
根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，计算获得所述显示屏亮度补偿值所需的背光电流值，将该背光电流值作为所述显示屏的补偿背光数据；或者，Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining a brightness compensation value of the display screen corresponding to the obtained angle according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, and obtaining the calculated value a backlight current value required for the brightness compensation value of the display screen, and the backlight current value is used as compensation backlight data of the display screen; or
根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，将该显示屏亮度补偿值作为所述显示屏的补偿背光数据。Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining a brightness compensation value of the display screen corresponding to the obtained angle according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, The display brightness compensation value is used as compensation backlight data for the display.
可选地，所述夹角与显示屏亮度补偿值的关系为：Optionally, the relationship between the included angle and the brightness compensation value of the display screen is:
当夹角为不小于0度且不大于10度时，显示屏亮度补偿值设置为0；和/或者，When the angle is not less than 0 degrees and not more than 10 degrees, the display brightness compensation value is set to 0; and / or,
当夹角为大于10度且不大于25度时，显示屏亮度补偿值设置为基准亮度值的50％；和/或者，When the angle is greater than 10 degrees and not greater than 25 degrees, the display brightness compensation value is set to 50% of the reference brightness value; and / or,
当夹角为大于25度且不大于40度时，显示屏亮度补偿值设置为基准亮度值的30％；和/或者，When the angle is greater than 25 degrees and not greater than 40 degrees, the display brightness compensation value is set to 30% of the reference brightness value; and / or,
当夹角为大于40度且不大于60度时，显示屏亮度补偿值设置为基准亮度值的20％；When the angle is greater than 40 degrees and not greater than 60 degrees, the display brightness compensation value is set to 20% of the reference brightness value;
其中，所述基准亮度值为根据当前环境光亮度值确定的显示屏亮度值。The reference brightness value is a display screen brightness value determined according to a current ambient light brightness value.
可选地，该装置还包括图像采集模块，设置为：利用隔行扫描方式，通过红、绿、蓝三种像素中的一种采集所述面对显示屏的图像。Optionally, the device further includes an image acquisition module, configured to: collect the image facing the display screen by using one of red, green, and blue pixels by using an interlaced scanning method.
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任一项的方法。A computer readable storage medium storing computer executable instructions for performing the method of any of the above.
本发明实施例通过环境光亮度值确定显示屏的基准背光数据，通过识别面对显示屏采集的图像中的标识信息(如人眼或人脸)的位置数据确定显示屏的补偿背光数据，根据基准背光数据和补偿背光数据实现了对于显示屏亮度的智能调节。本发明实施例通过识别标识信息的位置数据以补偿因为用户对显示屏的观察位置不同而造成显示屏亮度降低的问题，实现了根据环境光 亮度及时调整显示屏的亮度，从而保证了用户在比较强的外部环境光条件下也能够很好地看清楚显示屏显示的内容，提升了用户观看显示屏的效果及使用体验。The embodiment of the present invention determines the reference backlight data of the display screen by using the ambient light brightness value, and determines the compensation backlight data of the display screen by identifying the position data of the identification information (such as the human eye or the human face) in the image collected by the display screen, according to The reference backlight data and the compensated backlight data enable intelligent adjustment of the display brightness. The embodiment of the present invention compensates for the problem that the brightness of the display screen is lowered due to the difference in the viewing position of the display screen by the user by recognizing the position data of the identification information, and realizing the light according to the ambient light. Brightness adjusts the brightness of the display in time, thus ensuring that the user can clearly see the content displayed on the display under the condition of strong external ambient light, thereby improving the effect and experience of the user viewing the display.
在阅读并理解了附图和详细描述后，可以明白其他方面。Other aspects will be apparent upon reading and understanding the drawings and detailed description.
附图概述BRIEF abstract
图1所示为相关技术中位于不同显示屏观察位置观察到的LCD亮度的示意图；FIG. 1 is a schematic diagram showing the brightness of an LCD observed in different viewing positions of the display screen in the related art; FIG.
图2所示为本发明实施例提供的调节显示屏亮度的方法的流程图；FIG. 2 is a flowchart of a method for adjusting brightness of a display screen according to an embodiment of the present invention;
图3所示为本发明实施例提供的调节显示屏亮度的装置的示意图；FIG. 3 is a schematic diagram of an apparatus for adjusting brightness of a display screen according to an embodiment of the present invention; FIG.
图4所示为本发明实施例提供的摄像头角度分布图。FIG. 4 is a diagram showing an angular distribution of a camera according to an embodiment of the present invention.
本发明的实施方式Embodiments of the invention
以下结合附图对本发明的实施方式进行详细说明。Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
如图2所示，本发明实施例提供的调节显示屏亮度的方法包括：As shown in FIG. 2, the method for adjusting the brightness of a display screen provided by the embodiment of the present invention includes:
步骤11：当显示屏所处的环境光亮度值超过设定值时，根据当前环境光亮度值获取显示屏的基准背光数据。Step 11: When the ambient light brightness value of the display screen exceeds the set value, the reference backlight data of the display screen is obtained according to the current ambient light brightness value.
本步骤中的设定值为预先设定的环境光亮度的设定值，这里可以由智能移动终端厂商预先设定。当显示屏所处的环境光亮度值超过该设定值时，表示显示屏处于强环境光条件下，当前环境光亮度对用户识别显示屏信息造成了影响，此时执行本发明实施例提供的调节显示屏亮度的方法。The setting value in this step is a preset value of the ambient light brightness, which can be preset by the smart mobile terminal manufacturer. When the ambient light brightness value of the display screen exceeds the set value, it indicates that the display screen is in a strong ambient light condition, and the current ambient light brightness has an influence on the user identification display screen information. How to adjust the brightness of the display.
本步骤之前还包括：预先设置环境光亮度值与显示屏亮度值的对应关系；本步骤中的根据当前环境光亮度值获取显示屏的基准背光数据包括：Before the step, the method further includes: presetting the correspondence between the ambient light brightness value and the display brightness value; and obtaining the reference backlight data of the display screen according to the current ambient light brightness value in the step includes:
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，并计算获得该显示屏亮度值所需的背光电流值，将该背光电流值作为显示屏的基准背光数据；Finding a brightness value of the display screen corresponding to the brightness value of the current ambient light according to a preset correspondence relationship, and calculating a backlight current value required to obtain the brightness value of the display screen, and using the backlight current value as the reference backlight data of the display screen;
或者， Or,
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，将查找出的显示屏亮度值作为显示屏的基准背光数据。The display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
本步骤中，计算获得显示屏亮度值所需的背光电流值可以是：根据显示屏的背光灯数目将显示屏亮度值换算为获得该显示屏亮度值所需的背光电流值。In this step, the backlight current value required to obtain the brightness value of the display screen may be: the brightness value of the display screen is converted into the backlight current value required to obtain the brightness value of the display screen according to the number of backlights of the display screen.
步骤12：采集面对显示屏的图像。Step 12: Acquire an image facing the display.
本步骤中采集的面对显示屏的图像包括：利用隔行扫描方式，通过红、绿、蓝三种像素中的一种采集面对显示屏的图像。The image facing the display screen collected in this step includes: using an interlaced scanning method, capturing an image facing the display screen by one of three pixels of red, green and blue.
于此，需要说明的是，步骤11和步骤12中的根据当前环境光亮度值获取显示屏的基准背光数据和采集面对显示屏的图像并没有严格的时间顺序，只要满足显示屏所处的环境光亮度值超过设定值即可执行。于其他实施例中，亦可先执行步骤12，再执行步骤11，即先采集面对显示屏的图像，再获取显示屏所处的环境光亮度值并判断当前环境光亮度值是否超过设定值，当环境光亮度值超过设定值时，根据当前环境光亮度值获取显示屏的基准背光数据。Here, it should be noted that the reference backlight data of the display screen and the image of the display facing the display according to the current ambient light brightness value in steps 11 and 12 are not strictly time-ordered, as long as the display screen is located. The ambient light value exceeds the set value and can be executed. In other embodiments, step 12 may be performed first, and then step 11 is performed, that is, the image facing the display screen is collected first, and then the ambient light brightness value of the display screen is obtained, and whether the current ambient light brightness value exceeds the setting is determined. The value, when the ambient light brightness value exceeds the set value, obtains the reference backlight data of the display screen according to the current ambient light brightness value.
步骤13：获取采集到的图像中的标识信息的位置数据，并根据位置数据确定显示屏的补偿背光数据。Step 13: Acquire location data of the identification information in the collected image, and determine compensation backlight data of the display screen according to the location data.
以标识信息为如人眼或人脸为例，Taking the identification information as an example of a human eye or a human face,
本步骤中，根据人眼或人脸的位置数据确定显示屏的补偿背光数据包括：In this step, determining the compensation backlight data of the display screen according to the position data of the human eye or the human face includes:
根据人眼或人脸的位置数据得到人眼或人脸与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，计算获得该显示屏亮度补偿值所需的背光电流值，将该背光电流值作为显示屏的补偿背光数据；According to the position data of the human eye or the human face, the angle between the human eye or the face and the vertical direction of the display screen is obtained, and according to the corresponding relationship between the preset angle and the brightness compensation value of the display screen, the brightness of the display screen corresponding to the obtained angle is determined. The compensation value is used to calculate a backlight current value required to obtain the brightness compensation value of the display screen, and the backlight current value is used as compensation backlight data of the display screen;
或者，or,
根据人眼或人脸的位置数据得到人眼或人脸与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，将该显示屏亮度补偿值作为显示屏的补偿背光数据。 According to the position data of the human eye or the human face, the angle between the human eye or the face and the vertical direction of the display screen is obtained, and according to the corresponding relationship between the preset angle and the brightness compensation value of the display screen, the brightness of the display screen corresponding to the obtained angle is determined. The compensation value is used as the compensation backlight data of the display screen.
其中，位置数据例如为以摄像头的图像控制器的中心为坐标原点成立的XY坐标系中，人眼或人脸的成像位置至该坐标原点的距离。The position data is, for example, the distance from the imaging position of the human eye or the human face to the origin of the coordinate in the XY coordinate system in which the center of the image controller of the camera is the coordinate origin.
如图4所示，入射光线21通过摄像头透镜22进入摄像头的图像控制器CCD 23。人眼或人脸在摄像头的CCD 23上成像，以CCD 23中心为坐标原点成立XY坐标系，以一定的距离作为半径(其中，这个距离根据实际的摄像头测量数据获得)，测量得出垂直于摄像头镜头向外扩散0-10度角度(即人眼或人脸与显示屏垂直方向的夹角为不小于0度且不大于10度)时，在CCD 23上成像位置距离坐标原点的距离。同样地，依次测量获得垂直于摄像头镜头向外扩散10-25度角度(即人眼或人脸与显示屏垂直方向的夹角为大于10度且不大于25度)，25-40度角度(即人眼或人脸与显示屏垂直方向的夹角为大于25度且不大于40度)，40-60度角度(即人眼或人脸与显示屏垂直方向的夹角为大于40度且不大于60度)时，在CCD 23上成像位置距离坐标原点的距离，最终获得如图4所示的多个区域24、25、26、27。据此，根据人眼或人脸的位置数据可以确定人眼或人脸与显示屏垂直方向的夹角。As shown in FIG. 4, the incident ray 21 enters the image controller CCD 23 of the camera through the camera lens 22. The human eye or face is imaged on the CCD 23 of the camera, and the XY coordinate system is established with the center of the CCD 23 as the coordinate origin, with a certain distance as the radius (where the distance is obtained according to the actual camera measurement data), and the measurement is perpendicular to When the camera lens spreads out at an angle of 0-10 degrees (that is, when the angle between the human eye or the face and the vertical direction of the display screen is not less than 0 degrees and not more than 10 degrees), the distance of the imaging position on the CCD 23 from the origin of the coordinate is obtained. Similarly, the sequential measurement obtains an angle of 10-25 degrees perpendicular to the camera lens (ie, the angle between the human eye or the face perpendicular to the display screen is greater than 10 degrees and not greater than 25 degrees), and the angle of 25-40 degrees ( That is, the angle between the human eye or the face and the vertical direction of the display screen is greater than 25 degrees and not more than 40 degrees), and the angle of 40-60 degrees (ie, the angle between the human eye or the face and the vertical direction of the display screen is greater than 40 degrees and When it is not more than 60 degrees, the distance of the imaging position on the CCD 23 from the origin of the coordinate is finally obtained, and finally a plurality of regions 24, 25, 26, 27 as shown in Fig. 4 are obtained. According to this, the angle between the human eye or the face and the vertical direction of the display screen can be determined according to the position data of the human eye or the human face.
于此，在夹角角度不同时，显示屏获得的亮度补偿值也不同。Here, when the angle of the angle is different, the brightness compensation value obtained by the display screen is also different.
其中，夹角与显示屏亮度补偿值的关系为：当夹角为不小于0度且不大于10度时，显示屏亮度补偿值设置为0；和/或者，当夹角为大于10度且不大于25度时，显示屏亮度补偿值设置为基准亮度值的50％；和/或者，当夹角为大于25度且不大于40度时，显示屏亮度补偿值设置为基准亮度值的30％；和/或者，当夹角为大于40度且不大于60度时，显示屏亮度补偿值设置为基准亮度值的20％；其中，基准亮度值为根据当前环境光亮度值确定的显示屏亮度值。Wherein, the relationship between the angle of the angle and the brightness compensation value of the display screen is: when the angle is not less than 0 degrees and not more than 10 degrees, the brightness compensation value of the display screen is set to 0; and/or, when the angle is greater than 10 degrees and When the angle is not more than 25 degrees, the display brightness compensation value is set to 50% of the reference brightness value; and/or, when the angle is greater than 25 degrees and not more than 40 degrees, the display brightness compensation value is set to 30 of the reference brightness value. %; and / or, when the angle is greater than 40 degrees and not greater than 60 degrees, the display brightness compensation value is set to 20% of the reference brightness value; wherein, the reference brightness value is determined according to the current ambient light brightness value Brightness value.
此外，本步骤中，计算获得显示屏亮度补偿值所需的背光电流值可以是：根据显示屏的背光灯数目将该显示屏亮度补偿值换算为获得该显示屏亮度补偿值所需的背光电流值。In addition, in this step, calculating the backlight current value required to obtain the display brightness compensation value may be: converting the display brightness compensation value to the backlight current required to obtain the display brightness compensation value according to the number of backlights of the display screen value.
步骤14：根据基准背光数据与补偿背光数据调节显示屏的背光亮度。Step 14: Adjust the backlight brightness of the display according to the reference backlight data and the compensated backlight data.
本步骤中的根据基准背光数据与补偿背光数据调节显示屏的背光亮度为：将确定的基准背光数据与补偿背光数据相加得到显示屏的背光数据，根 据显示屏的背光数据调节显示屏的背光亮度。In this step, the backlight brightness of the display screen is adjusted according to the reference backlight data and the compensation backlight data: adding the determined reference backlight data and the compensation backlight data to obtain backlight data of the display screen, Adjust the backlight brightness of the display according to the backlight data of the display.
于一实施例中，确定的基准背光数据和补偿背光数据分别为根据步骤11获得的显示屏亮度值换算得到的背光电流值和根据步骤13获得的显示屏亮度补偿值换算得到的背光电流值。因此，基准背光数据和补偿背光数据相加得到的显示屏的背光数据为背光电流值。根据该背光电流值调节显示屏的背光亮度。In one embodiment, the determined reference backlight data and the compensated backlight data are respectively a backlight current value converted according to the display screen luminance value obtained in step 11 and a backlight current value converted according to the display screen luminance compensation value obtained in step 13. Therefore, the backlight data of the display screen obtained by adding the reference backlight data and the compensated backlight data is a backlight current value. The backlight brightness of the display screen is adjusted according to the backlight current value.
于另一实施例中，确定的基准背光数据和补偿背光数据分别为根据步骤11获得的显示屏亮度值和根据步骤13获得的显示屏亮度补偿值。因此，基准背光数据和补偿背光数据相加得到的显示屏的背光数据为亮度值。根据显示屏的背光灯数目将该亮度值换算为获得该亮度值所需的背光电流值。根据该背光电流值调节显示屏的背光亮度。其中，根据显示屏的背光灯数目将亮度值换算为对应的背光电流值。In another embodiment, the determined reference backlight data and the compensated backlight data are the display screen brightness value obtained according to step 11 and the display screen brightness compensation value obtained according to step 13, respectively. Therefore, the backlight data of the display screen obtained by adding the reference backlight data and the compensated backlight data is a luminance value. The luminance value is converted to the backlight current value required to obtain the luminance value according to the number of backlights of the display screen. The backlight brightness of the display screen is adjusted according to the backlight current value. The brightness value is converted into a corresponding backlight current value according to the number of backlights of the display screen.
如图3所示，本发明实施例提供的调节显示屏亮度的装置包括基准背光处理模块31、识别处理模块32以及背光调节模块33；其中，As shown in FIG. 3, the apparatus for adjusting the brightness of the display screen provided by the embodiment of the present invention includes a reference backlight processing module 31, an identification processing module 32, and a backlight adjustment module 33;
基准背光处理模块31，设置为：当显示屏所处的环境光亮度值超过设定值时，根据当前环境光亮度值获取显示屏的基准背光数据；The reference backlight processing module 31 is configured to: when the ambient light brightness value of the display screen exceeds the set value, obtain the reference backlight data of the display screen according to the current ambient light brightness value;
识别处理模块32，设置为：获取面对显示屏采集的图像中的标识信息的位置数据，并根据位置数据确定显示屏的补偿背光数据；The identification processing module 32 is configured to: acquire location data facing the identification information in the image collected by the display screen, and determine compensation backlight data of the display screen according to the location data;
背光调节模块33，设置为：根据基准背光数据与补偿背光数据调节显示屏的背光亮度。The backlight adjustment module 33 is configured to adjust the backlight brightness of the display screen according to the reference backlight data and the compensation backlight data.
于一实施例中，上述装置还包括图像采集模块34，设置为：采集面对显示屏的图像。本实施例提供的调节显示屏亮度的装置例如设置于移动终端，图像采集模块例如为移动终端的前置摄像头，或者可以旋转至移动终端的显示屏这一面的摄像头，设置为：实时采集摄像头前方的图像，并将图像缓存至存储区域。于此，图像采集模块以前置摄像头为例。此外，当前置摄像头还可设置为：显示屏背光调节时，为了节约电能，前置摄像头并非处于全工作状态，可以利用隔行扫描的方式，通过红、绿、蓝三种像素中的一种采集面对显示屏的，从而减少扫描的行数，实现降低功耗的目的，同时前置摄像 头还可设置为：背光调节时，采集的图像并不在显示屏进行显示，仅存储在存储区域。In an embodiment, the apparatus further includes an image acquisition module 34 configured to: collect an image facing the display screen. The device for adjusting the brightness of the display screen provided in this embodiment is, for example, disposed on a mobile terminal, and the image capturing module is, for example, a front camera of the mobile terminal, or a camera that can be rotated to the display screen of the mobile terminal, and is configured to: capture the front of the camera in real time. The image and cache the image to the storage area. Here, the image acquisition module is a former camera. In addition, the current camera can also be set to: when the display backlight is adjusted, in order to save energy, the front camera is not in full working state, and can be collected by one of red, green and blue pixels by means of interlaced scanning. Facing the display, thereby reducing the number of lines scanned, achieving the purpose of reducing power consumption, while pre-camera The head can also be set to: when the backlight is adjusted, the captured image is not displayed on the display and is only stored in the storage area.
于本实施例中，利用环境光传感器监测环境光亮度，当环境光传感器监测得到的环境光亮度值超过设定值时，表明环境光亮度足以对人眼识别移动终端的显示屏信息造成影响，此时启动前置摄像头拍摄图像。于其他实施例中，亦可采用前置摄像头判断环境光亮度。其中，环境光亮度的设定值为预先设定的环境光亮度的设定值，这里可以由移动终端厂商预先设定。In the embodiment, the ambient light sensor is used to monitor the ambient light brightness. When the ambient light brightness value obtained by the ambient light sensor exceeds the set value, it indicates that the ambient light brightness is sufficient to affect the display information of the human eye recognition mobile terminal. At this point, the front camera is activated to take an image. In other embodiments, the front camera can also be used to determine the ambient light level. The setting value of the ambient light brightness is a preset value of the preset ambient light brightness, which can be preset by the mobile terminal manufacturer.
于本实施例中，基准背光处理模块中预先存储有环境光亮度值与显示屏亮度值的对应关系，基准背光处理模块是设置为：In this embodiment, the reference backlight processing module pre-stores the correspondence between the ambient light brightness value and the display screen brightness value, and the reference backlight processing module is configured to:
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，并计算获得显示屏亮度值所需的背光电流值，将该背光电流值作为显示屏的基准背光数据；或者，Finding a brightness value of the display screen corresponding to the brightness value of the current ambient light according to the preset correspondence relationship, and calculating a backlight current value required to obtain the brightness value of the display screen, and using the backlight current value as the reference backlight data of the display screen; or
根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，将查找出的显示屏亮度值作为显示屏的基准背光数据。The display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
其中，关于显示屏亮度值换算至背光电流值的方式同上述方法所述，故于此不再赘述。The manner in which the brightness value of the display screen is converted to the value of the backlight current is the same as that described in the above method, and thus will not be described herein.
于本实施例中，识别处理模块，实时从存储区域提取图像采集模块采集得到的面对显示屏的图像，识别图像中标识信息的位置，获取识别出的标识信息的位置数据，并根据获得的标识信息的位置数据确定显示屏的补偿背光数据。其中，标识信息为如人眼或人脸为例。此外，关于补偿背光数据的获取过程同上述方法中所述，故于此不再赘述。In this embodiment, the identification processing module extracts an image of the display screen collected by the image acquisition module from the storage area, identifies the location of the identification information in the image, and obtains the location data of the identified identification information, and obtains the obtained The location data identifying the information determines the compensated backlight data for the display. The identification information is, for example, a human eye or a human face. In addition, the acquisition process for compensating the backlight data is the same as that described in the above method, and thus will not be described herein.
于本实施例中，背光调节模块，设置为：在环境光传感器获得的环境光亮度值调整显示屏亮度的基础上，再根据标识信息(如人眼或人脸)的位置数据(主要是人眼或人脸与显示屏垂直方向的夹角)继续调整显示屏的背光亮度。即，背光调节模块，根据由基准背光数据和补偿背光数据得到的显示屏的背光数据，自动调节显示屏的背光亮度。In this embodiment, the backlight adjustment module is configured to: adjust the brightness of the display screen based on the ambient light brightness value obtained by the ambient light sensor, and then according to the location information of the identification information (such as a human eye or a human face) (mainly a person) The angle between the eye or face and the vertical direction of the display) continues to adjust the backlight brightness of the display. That is, the backlight adjustment module automatically adjusts the backlight brightness of the display screen according to the backlight data of the display screen obtained from the reference backlight data and the compensation backlight data.
于一实施例中，基准背光处理模块通过环境光传感器获得的环境光亮度值确定一个基准的显示屏亮度值，计算获得该显示屏亮度值所需的背光电流 值(即基准背光电流值)。识别处理模块根据人眼或人脸的位置数据获得人眼或人脸与显示屏垂直方向的夹角，在此夹角时，测量的显示屏亮度会降低，根据亮度降低的程度，对显示屏的亮度进行补偿，即根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，计算获得该显示屏亮度补偿值所需的电流值(即补偿背光电流值)。背光调节模块将由于人眼或人脸位置而补偿的显示屏需要增加的电流值(即补偿背光电流值)增加到前者(即基准背光电流值)当中，得到调整显示屏的背光数据。于此，为了避免显示屏背光电流值过大，设定最大电流值，当显示屏的总背光电流值到达最大电流值时，背光电流值不再增大。换言之，即当基准背光电流值与补偿背光电流值的和值大于最大电流值时，以最大电流值调整显示屏的背光亮度。其中，例如根据显示屏的背光灯数目可以将显示屏亮度值(或显示屏亮度补偿值)换算成获得该显示屏亮度值(或显示屏亮度补偿值)所需的背光电流值。In an embodiment, the reference backlight processing module determines a brightness value of the display screen by using an ambient light brightness value obtained by the ambient light sensor, and calculates a backlight current required to obtain the brightness value of the display screen. Value (ie the reference backlight current value). The recognition processing module obtains an angle between the human eye or the face and the vertical direction of the display screen according to the position data of the human eye or the human face. At this angle, the brightness of the measured display screen is lowered, according to the degree of brightness reduction, the display screen The brightness is compensated, that is, according to the corresponding relationship between the preset angle and the brightness compensation value of the display screen, the brightness compensation value of the display screen corresponding to the obtained angle is determined, and the current value required to obtain the brightness compensation value of the display screen is calculated (ie, Compensate for backlight current value). The backlight adjustment module increases the current value (ie, the compensated backlight current value) of the display screen compensated by the position of the human eye or the face to the former (ie, the reference backlight current value), and obtains the backlight data of the adjusted display screen. Here, in order to avoid the display backlight current value is too large, the maximum current value is set, and when the total backlight current value of the display reaches the maximum current value, the backlight current value does not increase. In other words, when the sum of the reference backlight current value and the compensated backlight current value is greater than the maximum current value, the backlight brightness of the display screen is adjusted with the maximum current value. Wherein, according to the number of backlights of the display screen, the display brightness value (or the display brightness compensation value) can be converted into a backlight current value required to obtain the display brightness value (or the display brightness compensation value).
于另一实施例中，基准背光处理模块通过环境光传感器获得的环境光亮度值确定一个基准的显示屏亮度值(即基准背光亮度值)。识别处理模块根据人眼或人脸位置数据获得人眼或人脸与显示屏垂直方向的夹角，在此夹角时，测量的显示屏亮度会降低，根据亮度降低的程度，对显示屏的亮度进行补偿，即根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值。背光调节模块将基准背光亮度值与显示屏亮度补偿值相加得到显示屏的背光亮度值(即作为显示屏的背光数据)，计算获得该背光亮度值所需的背光电流值。显示屏的背光电源管理芯片根据得到的背光电流值实时调节显示屏的背光亮度。同样地，为了避免显示屏背光电流值过大，设定最大电流值，当显示屏的总背光电流值到达最大电流值时，背光电流值不再增大，即采用最大电流值调整显示屏的背光亮度。In another embodiment, the reference backlight processing module determines a reference display brightness value (ie, a reference backlight brightness value) by the ambient light brightness value obtained by the ambient light sensor. The recognition processing module obtains an angle between the human eye or the face and the vertical direction of the display screen according to the human eye or the face position data. At this angle, the brightness of the measured display screen is lowered, according to the degree of brightness reduction, on the display screen. The brightness is compensated, that is, according to the corresponding relationship between the preset angle and the display brightness compensation value, the brightness compensation value of the display screen corresponding to the obtained angle is determined. The backlight adjustment module adds the reference backlight brightness value to the display brightness compensation value to obtain a backlight brightness value of the display screen (ie, as backlight data of the display screen), and calculates a backlight current value required to obtain the backlight brightness value. The backlight power management chip of the display adjusts the backlight brightness of the display in real time according to the obtained backlight current value. Similarly, in order to avoid the display backlight current value is too large, set the maximum current value, when the total backlight current value of the display reaches the maximum current value, the backlight current value no longer increases, that is, the maximum current value is used to adjust the display. Backlight brightness.
综上所述，本发明实施例以前置摄像头作为识别条件，识别获取标识信息(如人眼或人脸)的位置数据，根据获得的位置数据，确定显示屏的补偿背光数据，并以环境光亮度值为基础确定显示屏的基准背光数据，根据由基准背光数据与补偿背光数据确定的显示屏的背光数据实现对于显示屏亮度的智能调节。 In summary, in the embodiment of the present invention, the front camera is used as the recognition condition to identify the location data of the identification information (such as the human eye or the human face), and the compensated backlight data of the display screen is determined according to the obtained position data, and the ambient light is used. The brightness value is used to determine the reference backlight data of the display screen, and the intelligent adjustment of the brightness of the display screen is realized according to the backlight data of the display screen determined by the reference backlight data and the compensation backlight data.
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如***、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
上述实施例中的装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
上述实施例中的装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
工业实用性Industrial applicability
本发明实施例通过识别标识信息(如人眼或人脸)相对于显示屏的位置以补偿因为用户对显示屏的观察位置不同而造成显示屏亮度降低的问题，实现了根据环境光亮度和标识信息的位置及时调整显示屏的亮度，从而保证了用户在比较强的外部环境光条件下也能够很好地看清楚显示屏显示的内容，提升了用户观看显示屏的效果及使用体验。 The embodiment of the present invention compensates for the problem that the display screen brightness is lowered due to the difference in the viewing position of the display screen by the identification information (such as the human eye or the human face) relative to the display screen, and realizes the brightness and the identification according to the ambient light. The position of the information adjusts the brightness of the display in time, thereby ensuring that the user can clearly see the content displayed on the display under relatively strong external ambient light conditions, thereby improving the effect and experience of the user viewing the display screen.

Claims (11)

  1. 一种调节显示屏亮度的方法，包括：A method of adjusting the brightness of a display screen, including:
    当显示屏所处的环境光亮度值超过设定值时，根据当前环境光亮度值获取显示屏的基准背光数据；When the ambient light brightness value of the display screen exceeds the set value, the reference backlight data of the display screen is obtained according to the current ambient light brightness value;
    获取面对显示屏采集的图像中的标识信息的位置数据，并根据所述位置数据确定显示屏的补偿背光数据；Obtaining location data of the identification information in the image collected by the display screen, and determining compensation backlight data of the display screen according to the location data;
    根据所述基准背光数据与所述补偿背光数据调节显示屏的背光亮度。Adjusting backlight brightness of the display screen according to the reference backlight data and the compensation backlight data.
  2. 如权利要求1所述的方法，该方法还包括：预先设置环境光亮度值与显示屏亮度值的对应关系；The method of claim 1, further comprising: presetting a correspondence between the ambient light brightness value and the display screen brightness value;
    所述根据当前环境光亮度值获取显示屏的基准背光数据包括：The obtaining the reference backlight data of the display screen according to the current ambient light brightness value comprises:
    根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，并计算获得所述显示屏亮度值所需的背光电流值，将该背光电流值作为所述显示屏的基准背光数据；或者，Searching, according to a preset correspondence relationship, a display screen brightness value corresponding to the current ambient light brightness value, and calculating a backlight current value required to obtain the display screen brightness value, and using the backlight current value as the reference backlight data of the display screen; or,
    根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，将查找出的显示屏亮度值作为所述显示屏的基准背光数据。The display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
  3. 如权利要求1所述的方法，其中，所述根据所述位置数据确定显示屏的补偿背光数据包括：The method of claim 1, wherein the determining the compensated backlight data of the display screen based on the location data comprises:
    根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，计算获得所述显示屏亮度补偿值所需的背光电流值，将该背光电流值作为所述显示屏的补偿背光数据；或者，Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining a brightness compensation value of the display screen corresponding to the obtained angle according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, and obtaining the calculated value a backlight current value required for the brightness compensation value of the display screen, and the backlight current value is used as compensation backlight data of the display screen; or
    根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，将该显示屏亮度补偿值作为所述显示屏的补偿背光数据。Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining a brightness compensation value of the display screen corresponding to the obtained angle according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, The display brightness compensation value is used as compensation backlight data for the display.
  4. 如权利要求3所述的方法，其中，所述夹角与显示屏亮度补偿值的关系为：The method of claim 3 wherein said angle of incidence is related to display brightness compensation value:
    当夹角为不小于0度且不大于10度时，显示屏亮度补偿值设置为0；和 /或者，When the angle is not less than 0 degrees and not more than 10 degrees, the display brightness compensation value is set to 0; /or,
    当夹角为大于10度且不大于25度时，显示屏亮度补偿值设置为基准亮度值的50％；和/或者，When the angle is greater than 10 degrees and not greater than 25 degrees, the display brightness compensation value is set to 50% of the reference brightness value; and / or,
    当夹角为大于25度且不大于40度时，显示屏亮度补偿值设置为基准亮度值的30％；和/或者，When the angle is greater than 25 degrees and not greater than 40 degrees, the display brightness compensation value is set to 30% of the reference brightness value; and / or,
    当夹角为大于40度且不大于60度时，显示屏亮度补偿值设置为基准亮度值的20％；When the angle is greater than 40 degrees and not greater than 60 degrees, the display brightness compensation value is set to 20% of the reference brightness value;
    其中，所述基准亮度值为根据当前环境光亮度值确定的显示屏亮度值。The reference brightness value is a display screen brightness value determined according to a current ambient light brightness value.
  5. 如权利要求1所述的方法，其中，所述获取面对显示屏采集的图像中的标识信息的位置数据之前，还包括：利用隔行扫描方式，通过红、绿、蓝三种像素中的一种采集所述面对显示屏的图像。The method of claim 1, wherein before the obtaining the location data of the identification information in the image collected by the display screen, the method further comprises: using an interlaced scanning method, using one of three pixels of red, green and blue. The image facing the display screen is collected.
  6. 一种调节显示屏亮度的装置，包括：A device for adjusting the brightness of a display screen, comprising:
    基准背光处理模块，设置为：当显示屏所处的环境光亮度值超过设定值时，根据当前环境光亮度值获取显示屏的基准背光数据；The reference backlight processing module is configured to: when the ambient light brightness value of the display screen exceeds the set value, obtain the reference backlight data of the display screen according to the current ambient light brightness value;
    识别处理模块，设置为：获取面对显示屏采集的图像中的标识信息的位置数据，并根据所述位置数据确定显示屏的补偿背光数据；The identification processing module is configured to: obtain location data facing the identification information in the image collected by the display screen, and determine compensation backlight data of the display screen according to the location data;
    背光调节模块，设置为：根据所述基准背光数据与所述补偿背光数据调节显示屏的背光亮度。The backlight adjustment module is configured to: adjust a backlight brightness of the display screen according to the reference backlight data and the compensation backlight data.
  7. 如权利要求6所述的装置，其中：所述基准背光处理模块中预先存储有环境光亮度值与显示屏亮度值的对应关系；The device of claim 6, wherein the reference backlight processing module pre-stores a correspondence between ambient light brightness values and display screen brightness values;
    所述基准背光处理模块是设置为：The reference backlight processing module is configured to:
    根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，并计算获得所述显示屏亮度值所需的背光电流值，将该背光电流值作为所述显示屏的基准背光数据；或者，Searching, according to a preset correspondence relationship, a display screen brightness value corresponding to the current ambient light brightness value, and calculating a backlight current value required to obtain the display screen brightness value, and using the backlight current value as the reference backlight data of the display screen; or,
    根据预先设置的对应关系查找当前环境光亮度值对应的显示屏亮度值，将查找出的显示屏亮度值作为所述显示屏的基准背光数据。The display screen brightness value corresponding to the current ambient light brightness value is searched according to the preset correspondence relationship, and the found display screen brightness value is used as the reference backlight data of the display screen.
  8. 如权利要求6所述的装置，其中：所述识别处理模块是设置为： The apparatus of claim 6 wherein: said identification processing module is configured to:
    根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，计算获得所述显示屏亮度补偿值所需的背光电流值，将该背光电流值作为所述显示屏的补偿背光数据；或者，Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining a brightness compensation value of the display screen corresponding to the obtained angle according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, and obtaining the calculated value a backlight current value required for the brightness compensation value of the display screen, and the backlight current value is used as compensation backlight data of the display screen; or
    根据所述位置数据得到所述标识信息与显示屏垂直方向的夹角，根据预设的夹角与显示屏亮度补偿值的对应关系，确定得到的夹角对应的显示屏亮度补偿值，将该显示屏亮度补偿值作为所述显示屏的补偿背光数据。Obtaining an angle between the identification information and a vertical direction of the display screen according to the position data, and determining a brightness compensation value of the display screen corresponding to the obtained angle according to a corresponding relationship between the preset angle and the brightness compensation value of the display screen, The display brightness compensation value is used as compensation backlight data for the display.
  9. 如权利要求8所述的装置，其中：所述夹角与显示屏亮度补偿值的关系为：The apparatus of claim 8 wherein: said angle of incidence is related to display screen brightness compensation value:
    当夹角为不小于0度且不大于10度时，显示屏亮度补偿值设置为0；和/或者，When the angle is not less than 0 degrees and not more than 10 degrees, the display brightness compensation value is set to 0; and / or,
    当夹角为大于10度且不大于25度时，显示屏亮度补偿值设置为基准亮度值的50％；和/或者，When the angle is greater than 10 degrees and not greater than 25 degrees, the display brightness compensation value is set to 50% of the reference brightness value; and / or,
    当夹角为大于25度且不大于40度时，显示屏亮度补偿值设置为基准亮度值的30％；和/或者，When the angle is greater than 25 degrees and not greater than 40 degrees, the display brightness compensation value is set to 30% of the reference brightness value; and / or,
    当夹角为大于40度且不大于60度时，显示屏亮度补偿值设置为基准亮度值的20％；When the angle is greater than 40 degrees and not greater than 60 degrees, the display brightness compensation value is set to 20% of the reference brightness value;
    其中，所述基准亮度值为根据当前环境光亮度值确定的显示屏亮度值。The reference brightness value is a display screen brightness value determined according to a current ambient light brightness value.
  10. 如权利要求6所述的装置，还包括图像采集模块，设置为：利用隔行扫描方式，通过红、绿、蓝三种像素中的一种采集所述面对显示屏的图像。The apparatus of claim 6, further comprising an image acquisition module configured to: capture the image facing the display screen by one of red, green, and blue pixels by using an interlaced scanning method.
  11. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1-5任一项的方法。 A computer readable storage medium storing computer executable instructions for performing the method of any of claims 1-5.
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