WO2018090758A1 - 一种基于移动终端的闪光灯组件及其控制系统、控制方法 - Google Patents

一种基于移动终端的闪光灯组件及其控制系统、控制方法 Download PDF

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WO2018090758A1
WO2018090758A1 PCT/CN2017/105412 CN2017105412W WO2018090758A1 WO 2018090758 A1 WO2018090758 A1 WO 2018090758A1 CN 2017105412 W CN2017105412 W CN 2017105412W WO 2018090758 A1 WO2018090758 A1 WO 2018090758A1
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flash
value
brightness
image
module
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PCT/CN2017/105412
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English (en)
French (fr)
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焦涛
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捷开通讯(深圳)有限公司
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Priority to EP17872761.6A priority Critical patent/EP3544271B1/en
Priority to US16/309,942 priority patent/US10764420B2/en
Publication of WO2018090758A1 publication Critical patent/WO2018090758A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/62—Control of parameters via user interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/71—Circuitry for evaluating the brightness variation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0564—Combinations of cameras with electronic flash units characterised by the type of light source
    • G03B2215/0567—Solid-state light source, e.g. LED, laser
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/52—Details of telephonic subscriber devices including functional features of a camera

Definitions

  • the invention relates to an image processing technology, in particular to a flash unit based on a mobile terminal, a control system thereof and a control method thereof.
  • the current mainstream smart phones will be equipped with flash to improve the dark-shooting effect.
  • the LED light source is a cold light source, the LED light effect is currently only 100lm/W, and its electro-optical conversion efficiency is only about 20 ⁇ 30%. That is to say, about 70% of the electrical energy becomes heat.
  • the volume of mobile phones becomes more and more compact, CPU, screen, battery, etc. are the main sources of heat.
  • the design of the mobile phone has never been considered to enhance the heat dissipation of the LED flash, resulting in poor heat dissipation due to excessive use time.
  • the heating temperature is high, which reduces the life of the LED flash.
  • the present invention provides a flash unit based on a mobile terminal, a control system thereof, and a control method, so that the flash unit is replaced with a display module and serves as a protective cover of the camera module, thereby reducing the mobile terminal.
  • the heat is generated, and the parts are reduced, and the production cost is reduced.
  • the present invention provides a flash unit based on a mobile terminal, comprising a flash unit disposed on the mobile terminal, the flash unit being a display module, the display module being disposed at a front end of the camera module of the mobile terminal, The display module communicates with the processor of the mobile terminal via the I2C.
  • the present invention provides a control system for a flash unit based on a mobile terminal, the control system comprising a flash unit disposed on the mobile terminal, the flash unit being a display module, and the display module being disposed at a front end of the camera module of the mobile terminal
  • the control system also includes:
  • the scene pre-judging module is configured to acquire the ambient light color temperature and the ambient light brightness of the current scene through the camera module, and use a 3A algorithm to calculate a focus point, a color temperature adjustment target value, and a brightness adjustment target value, and adjust the focus point, the color temperature adjustment target value, and The brightness adjustment target value is sent to the control module;
  • control module configured to calculate a corresponding shutter speed, a sensitivity of the camera component sensor, and a current ratio value output by the flash component according to the color temperature adjustment target value and the brightness adjustment target value;
  • the flash unit is used to emit the corresponding display brightness and display color temperature.
  • control system further includes a manual adjustment module for manually adjusting parameters of the brightness, color temperature, and flash frequency of the flash unit and transmitting the parameters to the flash control module, and the control module outputs a corresponding current ratio value according to the parameter, the manual adjustment
  • the module can also be used to adjust the color of the flash unit.
  • the 3A algorithm includes an autofocus algorithm, an automatic exposure algorithm, and an automatic white balance algorithm.
  • the invention also provides a method for controlling a flash unit, the method comprising the following steps:
  • Step 1 S01 the scene pre-judging module predicts the ambient light color temperature and the ambient light brightness of the current scene, obtains the ambient light color temperature and the ambient light brightness data, and calculates the focus point, the color temperature adjustment target value, and the brightness adjustment target value through the 3A algorithm. And transmitting a focus point, a color temperature adjustment target value, and a brightness adjustment target value to the control module;
  • Step 2 S02, the control module color temperature adjustment target value, and the brightness adjustment target value calculate a corresponding shutter speed, a sensitivity of the camera component sensor, and a current ratio value output by the flash unit;
  • Step 3 S03 the flash unit outputs a corresponding display color temperature and display brightness.
  • the 3A algorithm includes an autofocus algorithm, an automatic exposure algorithm, and an automatic white balance algorithm.
  • the autofocus algorithm searches for the maximum focus value of the current scene in the current scene by adjusting the position of the lens of the camera module, and the lens motor pushes the lens to a position corresponding to the maximum focus value, thereby completing the focus and determining Focus point.
  • the automatic exposure algorithm includes the following steps:
  • Step S101 obtaining a frame pre-flash image by pre-flashing of the flash component by acquiring a frame of the original image of the current scene through the camera module;
  • Step 2 S102, analyzing the original image, obtaining a brightness value of the original image, comparing the brightness value of the original image with the target brightness value, to obtain an exposure setting value of the original image;
  • Step 3 S103, analyzing the pre-flash image, obtaining a brightness value of the pre-flash image, comparing the brightness value of the pre-flash image with the target brightness value, to obtain an exposure setting value of the pre-flash image;
  • Step 4 S104, averaging the exposure setting value of the original image and the exposure setting value of the pre-flash image to finally obtain a brightness adjustment target value;
  • the scene pre-judging module reduces the exposure setting value of the original image or the pre-flash image
  • the scene pre-judging module increases the exposure setting value of the original image or the pre-flash image.
  • the automatic white balance algorithm includes the following steps:
  • Step S201 obtaining a frame pre-flash image by pre-flashing of the flash component by acquiring a frame of the original image of the current scene through the camera module;
  • Step 2 S202, analyzing the original image, performing statistical operations on the R/G and B/G information in the original image to obtain color temperature information of the original image;
  • Step 3 S203, analyzing the pre-flash image, performing statistical operations on the R/G and B/G information in the pre-flash image to obtain color temperature information of the pre-flash image;
  • step S204 the color temperature information of the original image is added to the color temperature information of the pre-flash image to finally obtain a color temperature adjustment target value.
  • the flash unit is an OLED display module.
  • the present invention reduces the components by replacing the flash unit and the protective cover of the camera with the display module, and replacing the flash unit with the display module can reduce the heat generation.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a block diagram of the system of the present invention.
  • FIG. 3 is a system flow diagram of the present invention.
  • Figure 5 is a flow chart of the automatic white balance algorithm of the present invention.
  • FIG. 6 is a schematic structural view of an OLED display module of the present invention.
  • Fig. 7 is a structural schematic view showing a specific arrangement position of the display module of the present invention.
  • a flash terminal component of a mobile terminal includes a flash component disposed on a mobile terminal, the flash component is a display module 1 , and the display module 1 is disposed in a camera module of the mobile terminal.
  • the front end of the second camera replaces the protective cover of the existing camera module 2, and the display module 1 communicates with the processor of the mobile terminal via the I2C, and replaces the flash component and the protective cover through the display module 1, thereby reducing components. Reduced costs.
  • the display module 1 is disposed at the front end of the camera module 2 (the dotted line in the figure) on the rear case 3 of the mobile terminal.
  • the display module 1 is a liquid crystal display module, and the liquid crystal display module can be an OLED display module.
  • the OLED display module of the present invention includes a substrate 4 on which an anode 5, a hole transport layer 6, an organic light-emitting layer 7, an electron transport layer 8, and a cathode 9 are sequentially disposed.
  • a control system of a flash unit based on a mobile terminal includes a flash unit disposed on the mobile terminal, the flash unit is a display module 1, and the display module 1 is disposed on the mobile terminal.
  • the front end of the camera module, the control system further includes:
  • the scene pre-judging module is configured to acquire the ambient light color temperature and the ambient light brightness of the current scene through the camera module, and calculate a focus point, a color temperature adjustment target value, and a brightness adjustment target value by using a 3A algorithm. And transmitting a focus point, a color temperature adjustment target value, and a brightness adjustment target value to the control module;
  • control module configured to calculate a corresponding shutter speed, a sensitivity of an image sensor of the camera component 2, and a current ratio value output by the flash component according to the color temperature adjustment target value and the brightness adjustment target value, and realize the current ratio value outputted by the flash component
  • the display brightness and display color temperature of the flash unit are controlled;
  • the flash unit is configured to emit a corresponding display brightness and display color temperature, and the flash unit is preferably an OLED display module.
  • the control system of the present invention further includes a manual adjustment module for manually adjusting parameters of the display brightness, display color temperature, and flash frequency of the flash unit and transmitting the parameters to the flash control module, and the control module outputs a corresponding current ratio value according to the parameter, thereby making the photo Exposure AE, white balance AWB surface is better.
  • the manual adjustment module can also be used to adjust the display color of the flash component output, and the control module adjusts the corresponding current ratio value according to the required color, so that the flash component displays the corresponding display color, and can be used as a flashlight for illumination.
  • a method for controlling a flash unit includes the following steps:
  • Step 1 S01 the scene pre-judging module predicts the ambient light color temperature and the ambient light brightness of the current scene, obtains the ambient light color temperature and the ambient light brightness data, and calculates the focus point, the color temperature adjustment target value, and the brightness adjustment target value through the 3A algorithm. And transmitting a focus point, a color temperature adjustment target value, and a brightness adjustment target value to the control module;
  • Step 2 S02, the control module color temperature adjustment target value, and the brightness adjustment target value calculate a corresponding shutter speed, a sensitivity of the camera component sensor, and a current ratio value output by the flash unit;
  • Step 3 S03 the flash unit outputs a corresponding display color temperature and display brightness.
  • the 3A algorithm includes an auto focus algorithm (AF), an automatic exposure algorithm (AE), and an automatic white balance algorithm (AWB);
  • the autofocus algorithm searches for the maximum focus value (FV value) in the current scene in the current scene by adjusting the position of the lens of the camera module, and the lens motor pushes the lens to move to the position corresponding to the maximum focus value, thereby Complete focus and determine the focus point;
  • the automatic exposure algorithm includes the following steps:
  • Step S101 obtaining a frame pre-flash image by pre-flashing of the flash component by acquiring a frame of the original image of the current scene through the camera module;
  • Step 2 S102, analyzing the original image, obtaining a luminance value (Y) of the original image, and comparing the luminance value (Y) of the original image with the target luminance value (AE target) to obtain an exposure setting value of the original image;
  • Step 3 S103, analyzing the pre-flash image, obtaining a luminance value (Y) of the pre-flash image, comparing the luminance value (Y) of the pre-flash image with the target luminance value (AE target), and obtaining an exposure setting value of the pre-flash image. ;
  • step S104 the exposure setting value of the original image and the exposure setting value of the pre-flash image are averaged to obtain a brightness adjustment target value.
  • the target brightness value (AE target) is typically 47.
  • the scene pre-judging module reduces the exposure setting value of the original image or the pre-flash image
  • the scene pre-judging module increases the exposure setting value of the original image or the pre-flash image
  • the original image or the pre-flash image has a brightness value of 30, which is compared with the target brightness value, which is smaller than the target brightness value.
  • the exposure setting value is increased by an increment of 47 to the original image or the pre-flash image.
  • the automatic white balance algorithm includes the following steps:
  • Step S201 Obtain a frame of the pre-flash image by pre-flashing of the flash component 1 after acquiring a frame of the original image of the current scene by the camera module;
  • Step 2 S202, analyzing the original image, performing statistical operations on the R/G and B/G information in the original image to obtain color temperature information of the original image;
  • Step 3 S203, analyzing the pre-flash image, performing statistical operations on the R/G and B/G information in the pre-flash image to obtain color temperature information of the pre-flash image;
  • step S204 the color temperature information of the original image is added to the color temperature information of the pre-flash image to finally obtain a color temperature adjustment target value.
  • the statistical operation of the R/G and B/G information in the original image or the pre-flash image is specifically: converting the ambient light into an electrical signal by the sensor of the camera module, and passing through each pixel of the Bayer array in the statistical sensor The value of the pixel electrical signal, thereby obtaining the color temperature information of the original image or the pre-flash image, and performing statistical operations on the R/G and B/G information in the original image or the pre-flash image as prior art, and is not detailed here. Description.
  • the OLED display module of the mainstream display technology of the mobile terminal is superior to the LED flash in terms of luminous efficiency, color and color temperature, and the heat output of the OLED display module is much lower than that of the LED flash, which can reduce the heat generation of the flash.
  • the invention expands the application range of the display module and can greatly reduce the production cost.

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Abstract

本发明提供了一种基于移动终端的闪光灯组件，包括设于移动终端上的闪光灯组件，所述闪光灯组件为显示模组，所述显示模组设于移动终端的摄像头模组的前端，所述显示模组经I2C与移动终端的处理器连接通信。本发明还提供了一种控制系统，包括场景预判模块、控制模块、闪光灯组件。还提供了一种控制方法。与现有技术相比，通过将闪光灯组件以及摄像头的保护盖替换为显示模组，从而减少部件；而将闪光灯组件替换为显示模组，能够降低发热量。

Description

一种基于移动终端的闪光灯组件及其控制系统、控制方法 技术领域
本发明涉及一种图像处理技术，特别是一种基于移动终端的闪光灯组件及其控制系统、控制方法。
背景技术
目前，当下主流智能手机都会配置闪光灯，以此来提高暗拍效果，LED光源虽属冷光源，但LED的光效目前只有100lm/W，其电光转换效率大约只有20～30％左右。也就是说大约70％的电能都变成了热能。随着手机体积越来越紧凑，CPU、屏幕、电池等都是主要发热源，作为拍照的辅助光源，手机在设计始终没有考虑为LED闪光灯加强散热，导致使用时间过长会出现散热不好，发热温度高，从而降低了LED闪光灯的寿命。
发明内容
为克服现有技术的不足，本发明提供一种基于移动终端的闪光灯组件及其控制系统、控制方法，使得将闪光灯组件替换为显示模组并且作为摄像头模组的保护盖，从而能够降低移动终端的发热量，而且减少了部件，降低生产成本。
本发明提供了一种基于移动终端的闪光灯组件，包括设于移动终端上的闪光灯组件，所述闪光灯组件为显示模组，所述显示模组设于移动终端的摄像头模组的前端，所述显示模组经I2C与移动终端的处理器连接通信。
本发明提供了一种基于移动终端的闪光灯组件的控制系统，该控制系统包括设于移动终端上的闪光灯组件，所述闪光灯组件为显示模组，显示模组设于移动终端的摄像头模组前端，该控制系统还包括：
场景预判模块，用于通过摄像头模组获取当前场景的环境光色温以及环境光亮度采用3A算法计算出对焦点、色温调节目标值以及亮度调节目标值，并将对焦点、色温调节目标值以及亮度调节目标值发送至控制模块；
控制模块，用于根据色温调节目标值、亮度调节目标值计算出相应的快门速度、摄像头组件传感器的感光度以及闪光灯组件输出的电流配比值；
闪光灯组件，用于发出相应的显示亮度、显示色温。
进一步地，所述控制系统还包括手动调节模块，用于手工调节闪光灯组件的亮度、色温、闪光频率的参数并发送至闪光灯控制模块，控制模块根据参数输出相应的电流配比值，所述手动调节模块还可以用于调节闪光灯组件的颜色。
进一步地，所述3A算法包括自动对焦算法、自动曝光算法和自动白平衡算法。
本发明还提供了一种闪光灯组件的控制方法，该方法包括如下步骤：
步骤一S01、场景预判模块对当前场景的环境光色温以及环境光亮度进行预判，得到环境光色温以及环境光亮度数据并通过3A算法计算出对焦点、色温调节目标值以及亮度调节目标值，并将对焦点、色温调节目标值以及亮度调节目标值发送至控制模块；
步骤二S02、控制模块色温调节目标值、亮度调节目标值计算出相应的快门速度、摄像头组件传感器的感光度以及闪光灯组件输出的电流配比值；
步骤三S03、闪光灯组件输出相应的显示色温以及显示亮度。
进一步地，所述3A算法包括自动对焦算法、自动曝光算法和自动白平衡算法。
进一步地，所述自动对焦算法通过调整摄像头模组的镜头的位置，在当前场景中搜索当前场景中最大聚焦值，并且镜头马达推动镜头移动至最大聚焦值所对应的位置，从而完成对焦，确定对焦点。
进一步地，所述自动曝光算法包括以下步骤：
步骤一S101，通过摄像头模组获取当前场景的一帧原始图像后通过闪光灯组件的预闪获得一帧预闪图像；
步骤二S102，分析原始图像，获得原始图像的亮度值，将原始图像的亮度值与目标亮度值进行比较，得到原始图像的曝光设定值；
步骤三S103，分析预闪图像，获得预闪图像的亮度值，将预闪图像的亮度值与目标亮度值进行比较，得到预闪图像的曝光设定值；
步骤四S104，将原始图像的曝光设定值与预闪图像的曝光设定值进行求平均值运算最终得到亮度调节目标值；
当原始图像或预闪图像的亮度值大于目标亮度值为图片过曝，场景预判模块减小原始图像或预闪图像的曝光设定值；
当原始图像或预闪图像的亮度值小于目标亮度值为图片过暗，场景预判模块增加原始图像或预闪图像的曝光设定值。
进一步地，所述自动白平衡算法包括如下步骤：
步骤一S201，通过摄像头模组获取当前场景的一帧原始图像后通过闪光灯组件的预闪获得一帧预闪图像；
步骤二S202，分析原始图像，对原始图像中的R/G，B/G信息进行统计运算，得到原始图像的色温信息；
步骤三S203，分析预闪图像，对预闪图像中的R/G，B/G信息进行统计运算，得到预闪图像的色温信息；
步骤四S204，将原始图像的色温信息与预闪图像的色温信息相加最终得到色温调节目标值。
进一步地，所述闪光灯组件为OLED显示模组。
本发明与现有技术相比，通过将闪光灯组件以及摄像头的保护盖替换为显示模组，从而减少部件；而将闪光灯组件替换为显示模组，能够降低发热量。
附图说明
图1是本发明结构示意图。
图2是本发明的系统框图。
图3是本发明的系统流程图。
图4是本发明自动曝光算法的流程图。
图5是本发明自动白平衡算法的流程图。
图6是本发明OLED显示模组的结构示意图。
图7是本发明显示模组的具体设置位置的结构示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步详细说明。
如图1所示，本发明的一种基于移动终端的闪光灯组件，包括设于移动终端上的闪光灯组件，所述闪光灯组件为显示模组1，显示模组1设于移动终端的摄像头模组2的前端，替换现有的摄像头模组2的保护盖，所述显示模组1经I2C与移动终端的处理器连接通信，通过显示模组1替换闪光灯组件以及保护盖，从而减少了部件，降低了成本。
优选地，如图7所示，为本发明显示模组1的具体设置位置，所述显示模组1设置在移动终端的后壳3上位于摄像头模组2(图中虚线部分)的前端。
本发明中该显示模组1为液晶显示模组，该液晶显示模组可以为OLED显示模组。
如图6所示，本发明的OLED显示模组包括基板4，基板4上依次设置有阳极5、空穴传输层6、有机发光层7、电子传输层8、阴极9。
如图2所示，一种基于移动终端的闪光灯组件的控制系统，该控制系统包括设于移动终端上的闪光灯组件，所述闪光灯组件为显示模组1，显示模组1设于移动终端的摄像头模组前端，该控制系统还包括：
场景预判模块，用于通过摄像头模组获取当前场景的环境光色温以及环境光亮度并通过3A算法计算出对焦点、色温调节目标值以及亮度调节目标值， 并将对焦点、色温调节目标值以及亮度调节目标值发送至控制模块；
控制模块，用于根据色温调节目标值、亮度调节目标值计算出相应的快门速度、摄像头组件2的图像传感器的感光度以及闪光灯组件输出的电流配比值，通过闪光灯组件输出的电流配比值实现对闪光灯组件的显示亮度、显示色温进行控制；
闪光灯组件，用于发出相应的显示亮度、显示色温，闪光灯组件优选为OLED显示模组。
所述快门速度的计算以及感光度的计算均采用现有技术实现，在此不做具体限定。
本发明的控制系统还包括手动调节模块，用于手工调节闪光灯组件的显示亮度、显示色温、闪光频率的参数并发送至闪光灯控制模块，控制模块根据参数输出相应的电流配比值，从而使照片的曝光AE、白平衡AWB表面更好。
所述手动调节模块还可以用于调节闪光灯组件输出的显示颜色，控制模块根据所需要的颜色调节相应的电流配比值，使闪光灯组件显示出所对应的显示颜色，可以充当手电筒进行照射。
如图3所示，一种闪光灯组件的控制方法，包括如下步骤：
步骤一S01、场景预判模块对当前场景的环境光色温以及环境光亮度进行预判，得到环境光色温以及环境光亮度数据并通过3A算法计算出对焦点、色温调节目标值以及亮度调节目标值，并将对焦点、色温调节目标值以及亮度调节目标值发送至控制模块；
步骤二S02、控制模块色温调节目标值、亮度调节目标值计算出相应的快门速度、摄像头组件传感器的感光度以及闪光灯组件输出的电流配比值；
步骤三S03、闪光灯组件输出相应的显示色温以及显示亮度。
所述3A算法包括自动对焦算法(AF)、自动曝光算法(AE)和自动白平衡算法(AWB)；
所述自动对焦算法(AF)通过调整摄像头模组的镜头的位置，在当前场景中搜索当前场景中最大聚焦值(FV值)，并且镜头马达推动镜头移动至最大聚焦值所对应的位置，从而完成对焦，确定对焦点；
如图4所示，所述自动曝光算法包括以下步骤：
步骤一S101，通过摄像头模组获取当前场景的一帧原始图像后通过闪光灯组件的预闪获得一帧预闪图像；
步骤二S102，分析原始图像，获得原始图像的亮度值(Y)，将原始图像的亮度值(Y)与目标亮度值(AE target)进行比较，得到原始图像的曝光设定值；
步骤三S103，分析预闪图像，获得预闪图像的亮度值(Y)，将预闪图像的亮度值(Y)与目标亮度值(AE target)进行比较，得到预闪图像的曝光设定值；
步骤四S104，将原始图像的曝光设定值与预闪图像的曝光设定值进行求平均值运算最终得到亮度调节目标值。
所述目标亮度值(AE target)通常为47。
当原始图像或预闪图像的亮度值(Y)大于目标亮度值为图片过曝，场景预判模块减小原始图像或预闪图像的曝光设定值；
当原始图像或预闪图像的亮度值(Y)小于目标亮度值为图片过暗，场景预判模块增加原始图像或预闪图像的曝光设定值；
例如，原始图像或预闪图像的亮度值为30，其与目标亮度值进行比较，为小于目标亮度值，此时增加曝光设定值，增加幅度为以47为基数与原始图像或预闪图像的亮度值相减，得到的值即为图像或预闪图像的曝光设定值，如47-30＝17，此时图像或预闪图像的曝光设定值设置为17；而若原始图像或预闪图像的亮度值为90，此时图像或预闪图像的曝光设定值即为47-90＝-43，图像或预闪图像的曝光设定值设置为-43。
如图5所示，所述自动白平衡算法(AWB)包括如下步骤：
步骤一S201，通过摄像头模组获取当前场景的一帧原始图像后通过闪光灯组件1的预闪获得一帧预闪图像；
步骤二S202，分析原始图像，对原始图像中的R/G，B/G信息进行统计运算，得到原始图像的色温信息；
步骤三S203，分析预闪图像，对预闪图像中的R/G，B/G信息进行统计运算，得到预闪图像的色温信息；
步骤四S204，将原始图像的色温信息与预闪图像的色温信息相加最终得到色温调节目标值。
所述对原始图像或预闪图像中的R/G，B/G信息进行统计运算具体为，通过摄像头模组的传感器将环境光转化成电信号，通过统计传感器中拜尔阵列的各个像素点的像素电信号的数值，从而得到原始图像或预闪图像的色温信息，该对原始图像或预闪图像中的R/G，B/G信息进行统计运算为现有技术，在此不再详细说明。
目前移动终端的主流显示技术中OLED显示模组在发光效率，色彩，色温方面均优于LED闪光灯，而且OLED显示模组的发热量要远低于LED闪光灯，这样能够降低闪光灯的发热量。本发明通过结合并替代传统的LED闪光灯、摄像头模组保护盖，扩大了显示模组的应用范围可可以大大降低生产成本。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (11)

  1. 一种基于移动终端的闪光灯组件的控制系统，其中：该控制系统包括设于移动终端上的闪光灯组件，所述闪光灯组件为显示模组，显示模组设于移动终端的摄像头模组前端，该控制系统还包括：
    场景预判模块，用于通过摄像头模组获取当前场景的环境光色温以及环境光亮度采用3A算法计算出对焦点、色温调节目标值以及亮度调节目标值，并将对焦点、色温调节目标值以及亮度调节目标值发送至控制模块；
    控制模块，用于根据色温调节目标值、亮度调节目标值计算出相应的快门速度、摄像头组件传感器的感光度以及闪光灯组件输出的电流配比值；
    闪光灯组件，用于发出相应的显示亮度、显示色温；
    所述控制系统还包括手动调节模块，用于手工调节闪光灯组件的亮度、色温、闪光频率的参数并发送至闪光灯控制模块，控制模块根据参数输出相应的电流配比值，所述手动调节模块还可以用于调节闪光灯组件的颜色。
  2. 根据权利要求1所述的基于移动终端的闪光灯组件的控制系统，其中：所述3A算法包括自动对焦算法、自动曝光算法和自动白平衡算法。
  3. 一种基于移动终端的闪光灯组件，包括设于移动终端上的闪光灯组件，其中：所述闪光灯组件为显示模组，所述显示模组设于移动终端的摄像头模组的前端，所述显示模组经I2C与移动终端的处理器连接通信。
  4. 根据权利要求3所述的闪光灯组件，其中，所述显示模组设置于所述移动终端的后壳上。
  5. 根据权利要求3所述的闪光灯组件，其中，所述显示模组为液晶显示模组。
  6. 一种闪光灯组件的控制方法，其中：该方法包括如下步骤：
    步骤一S01、场景预判模块对当前场景的环境光色温以及环境光亮度进行预判，得到环境光色温以及环境光亮度数据并通过3A算法计算出对焦点、色 温调节目标值以及亮度调节目标值，并将对焦点、色温调节目标值以及亮度调节目标值发送至控制模块；
    步骤二S02、控制模块根据色温调节目标值、亮度调节目标值计算出相应的快门速度、摄像头组件传感器的感光度以及闪光灯组件输出的电流配比值；
    步骤三S03、闪光灯组件输出相应的显示色温以及显示亮度。
  7. 根据权利要求6所述的闪光灯组件的控制方法，其中：所述3A算法包括自动对焦算法、自动曝光算法和自动白平衡算法。
  8. 根据权利要求7述的闪光灯组件的控制方法，其中：所述自动对焦算法通过调整摄像头模组的镜头的位置，在当前场景中搜索当前场景中最大聚焦值，并且镜头马达推动镜头移动至最大聚焦值所对应的位置，从而完成对焦，确定对焦点。
  9. 根据权利要求7所述的闪光灯组件的控制方法，其中：所述自动曝光算法包括以下步骤：
    步骤一S101，通过摄像头模组获取当前场景的一帧原始图像后通过闪光灯组件的预闪获得一帧预闪图像；
    步骤二S102，分析原始图像，获得原始图像的亮度值，将原始图像的亮度值与目标亮度值进行比较，得到原始图像的曝光设定值；
    步骤三S103，分析预闪图像，获得预闪图像的亮度值，将预闪图像的亮度值与目标亮度值进行比较，得到预闪图像的曝光设定值；
    步骤四S104，将原始图像的曝光设定值与预闪图像的曝光设定值进行求平均值运算最终得到亮度调节目标值；
    当原始图像或预闪图像的亮度值大于目标亮度值为图片过曝，场景预判模块减小原始图像或预闪图像的曝光设定值；
    当原始图像或预闪图像的亮度值小于目标亮度值为图片过暗，场景预判模块增加原始图像或预闪图像的曝光设定值。
  10. 根据权利要求7所述的闪光灯组件的控制方法，其中：所述自动白平衡算法包括如下步骤：
    步骤一S201，通过摄像头模组获取当前场景的一帧原始图像后通过闪光灯组件的预闪获得一帧预闪图像；
    步骤二S202，分析原始图像，对原始图像中的R/G，B/G信息进行统计运算，得到原始图像的色温信息；
    步骤三S203，分析预闪图像，对预闪图像中的R/G，B/G信息进行统计运算，得到预闪图像的色温信息；
    步骤四S204，将原始图像的色温信息与预闪图像的色温信息相加最终得到色温调节目标值。
  11. 根据权利要求6所述的闪光灯组件的控制方法，其中：所述闪光灯组件为OLED显示模组。
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