WO2018219292A1 - 一种信息终端的背景照明装置 - Google Patents
一种信息终端的背景照明装置 Download PDFInfo
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- WO2018219292A1 WO2018219292A1 PCT/CN2018/089011 CN2018089011W WO2018219292A1 WO 2018219292 A1 WO2018219292 A1 WO 2018219292A1 CN 2018089011 W CN2018089011 W CN 2018089011W WO 2018219292 A1 WO2018219292 A1 WO 2018219292A1
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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
- G09G3/3406—Control of illumination source
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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
Definitions
- the present invention relates to the field of lighting technologies, and in particular, to a background lighting device for an information terminal.
- the brightness sensor located near the earpiece recognizes the surrounding light environment to detect the brightness of the surrounding environment, and then calculates the brightness of the screen display according to the preset algorithm.
- An object of the present invention is to provide a background illumination device for an information terminal, which can perform illumination control of a sampled image based on display parameters such as brightness, color temperature, and the like of a screen of an information terminal used by a user, and adjust illumination of a background environment, thereby making the display screen
- the display parameters such as brightness and color temperature are matched with the illumination state of the background environment, so that the screen display conforms to the visual perception of the user, thereby effectively reducing the visual fatigue of the user during use and protecting the visual health of the user.
- an embodiment of the present invention provides a background illumination device for an information terminal, including an illumination lamp, a driving module for controlling the illumination lamp, and a first port for connecting the information terminal; the background illumination device further includes a control module, and is installed. On the information terminal or in the background illumination device;
- the control module is connected to the first port through a second port of the information terminal to control an illumination state of the illumination lamp;
- a control module disposed in the backlight device is coupled to the driving module to control an illumination state of the illumination lamp; and is connected to a second port of the information terminal through the first port;
- the controlling the module to control the illumination state of the illumination lamp specifically includes:
- the control module determines an illumination compensation mode
- Adjusting display parameters of the display screen to display parameters of the display screen and the user view angle based on a preset correspondence relationship between the ambient light and the compensation light in the corresponding illumination compensation mode, and a state parameter of the background environment The illumination state of the range of background environments matches.
- control module further receives the manipulation data input by the user according to the display parameter of the display screen of the information terminal, and sends the data to the driving module to further adjust the lighting parameter of the lighting device to control the lighting device. Lighting output.
- control module receives the manipulation data input by the user according to the display parameter of the display screen of the information terminal, and sends the control data to the driving module, thereby further adjusting the lighting parameter of the illumination lamp to control the illumination of the illumination lamp.
- the output is specifically as follows:
- the control module receives an adjustment parameter of the illumination parameter of the illumination lamp input by the user according to the display parameter of the display screen of the information terminal, and sends the adjustment parameter to the driving module, thereby further adjusting the illumination parameter of the illumination lamp to control the Illumination output of the illuminator.
- control module receives the manipulation data input by the user according to the display parameter of the display screen of the information terminal, and sends the control data to the driving module, thereby further adjusting the lighting parameter of the illumination lamp to control the illumination lamp.
- the illumination output is specifically: the control module receives data of a correspondence between a display parameter of a display screen of the information terminal and an illumination parameter of the illumination light input by a user according to a display parameter of a display screen of the information terminal, so that The illumination parameters of the illumination are adjusted accordingly with the display parameters of the display.
- the correspondence relationship is a list mapping or a function mapping relationship.
- the input of the manipulation data is specifically:
- An operation input is performed by a hardware input device on the information terminal or in the background illumination device; or an operation input is performed through a user interface that performs display on a display screen of the information terminal.
- the information terminal is connected to the cloud through a network, and the setting parameter of the illumination parameter of the illumination light input by the user according to the display parameter of the display screen is transmitted to the cloud.
- the cloud saves a correspondence relationship list, where the correspondence relationship list includes a user ID of the user, the display parameter and an illumination parameter, and a correspondence between a display parameter of the display screen and an illumination parameter of the illumination lamp;
- the information terminal downloads, from the cloud, a setting parameter of an illumination parameter of the illumination lamp according to a display parameter of the display screen determined according to the correspondence relationship.
- the cloud performs data analysis according to different user-uploaded correspondences, generates a universal setting parameter adapted to the first range, and a trait setting parameter adapted to the second range, for each of the information terminals to pass through
- the universal setting parameters required for cloud synchronization and the trait setting parameters are described.
- the data analysis of the cloud is specifically:
- the cloud calculates different illumination parameters corresponding to the same display parameter in the corresponding relationship, and compares different illumination parameters with an average value of the illumination parameters, when the illumination parameter deviates from the illumination parameter and the average value is smaller than the first When the threshold value is deviated, all the illumination parameters smaller than the first deviation threshold are weighted to generate a universal range setting parameter of the first range;
- the information terminal supplies power to the illumination lamp through the second port; the first port and the second port are respectively USB ports.
- the background illumination device of the information terminal provided by the embodiment of the present invention can perform illumination control of the sampled image based on the display parameters such as brightness and color temperature of the screen of the information terminal used by the user, and adjust the illumination of the background environment, thereby making the brightness of the display screen,
- the display parameters such as the color temperature match the illumination state of the background environment, so that the screen display conforms to the visual perception of the user, thereby effectively reducing the visual fatigue of the user during use and protecting the visual health of the user.
- FIG. 1 is a schematic structural diagram of a background illumination device of an information terminal according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of another background illumination device of an information terminal according to an embodiment of the present invention.
- FIG. 3 is a structural diagram of a network system with an information terminal and a background illumination device according to an embodiment of the present invention.
- the illumination state of the background environment has a great influence on the visual effect of the display screen.
- the size of the pupil can be adjusted according to the brightness of the object to adjust, and the higher the brightness, the smaller the pupil is adjusted. The lower the brightness, the larger the pupil is adjusted.
- the phone when using a 5-inch display phone, the phone is placed at a distance of about 30cm from the eye.
- the visual solid angle of our eyes is about 120 degrees, and the visual range of the eyes at 30cm is about 8482cm 2 , while the 5-inch display.
- the area of the mobile phone is no more than 100cm 2 , and the visual range of the mobile phone display is less than 2%.
- the display when using a computer with a 20-inch display, the display is placed at a distance of about 50cm from the eye. At this time, the visual range of the eye at 50cm is about 23562cm 2 , and the area of the 20-inch computer display is no more than 1200cm.
- the computer screen accounts for less than 6% of the human eye's visual range. Therefore, the size of the pupil of the eye is mainly affected by the illumination state of the background environment of the display. In order to make the user more comfortable when using the display screen, the brightness of the display screen must be adjusted according to the size of the pupil, that is, according to the illumination state of the background environment of the display screen, thereby protecting the visual health of the user.
- FIG. 1 and FIG. 2 are respectively schematic diagrams showing two implementations of the background illumination device of the information terminal according to the embodiment.
- the background illumination device provided in this embodiment includes: an illumination lamp 1 and a control illumination driver.
- the module 2 is connected to the first USB port 3 of the information terminal and the control module 4.
- the illuminating lamp 1 can adopt a multi-color LED lamp, for example, a lamp composed of a plurality of yellow LEDs and white LEDs, and can provide illumination output of lighting parameters of different brightness, color temperature and the like.
- the driving module 2 is specifically a power adjusting electronic device that drives the LED to emit light or the LED module assembly to work normally. Due to the conduction characteristics of the LED PN junction, it can adapt to the voltage and current fluctuation range of the power supply is very narrow, a slight deviation may not be able to illuminate the LED or the luminous efficiency is seriously reduced, or shorten the service life or even burn the chip, so it needs a separate The module 2 is driven to drive the LEDs to operate at an optimum voltage or current state.
- the first USB port 3 is configured to perform data interaction through the second USB port of the information terminal.
- the USB interface is used as an example in this example, in practical applications, the port may also use other ports than the USB port, such as a serial port and a Bluetooth port, to implement data interaction between the information terminal and the background illumination device.
- the control module 4 can be mounted on the information terminal or can be installed in the background illumination device.
- the control module 4 is installed on the information terminal, and is connected to the input module of the information terminal, and receives a manipulation instruction input by the user according to the display parameter of the display screen of the information terminal, and processes the control data to be sent to the driving module.
- the illumination output of the illumination lamp is controlled by the illumination module adjusting the illumination parameters of the illumination lamp.
- the display parameter of the display screen includes at least brightness and/or color temperature
- the illumination parameter of the illumination lamp also includes at least brightness and/or color temperature
- control module 4 is disposed in the background illumination device and is connected to the drive module 2 to control the illumination state of the illumination lamp. And the control module 4 is connected to the second USB port of the information terminal through the first USB port to implement data transmission.
- the user can directly input the adjustment parameter of the illumination parameter of the illumination lamp 1 through the input module of the information terminal according to the display parameter of the display screen of the information terminal, so that the control module 4 performs processing, and the drive control signal obtained after the process is passed.
- the USB port outputs to the driving module 2 to drive the illumination parameter of the illumination lamp 1 to control the light output; or the data of the correspondence between the display parameter of the display screen of the information terminal and the illumination parameter of the illumination lamp 1 through the input module of the information terminal.
- control module 4 acquires the display parameters of the display screen, and the control data is processed by the control module 4 for the above data and parameters, and the drive control signal obtained after the processing is output to the drive module 2 to drive and control the illumination lamp 1 to make the illumination parameters of the illumination lamp 1 Adjust accordingly with the display parameters of the display.
- the correspondence mentioned here refers to a list mapping or a function mapping relationship.
- the information terminal receives the brightness adjustment parameter input by the user according to the brightness of the display screen, and transmits the brightness adjustment parameter to the control module 4, and the control module 4 processes the brightness adjustment parameter to generate a drive control signal, which is transmitted to the drive module through the USB port.
- the driving module 2 transmits a driving signal to the illumination lamp 1 according to the driving control signal, and the illumination brightness of the output light reaches the desired set brightness by turning on or off the number of the LED lamps or adjusting the luminous current value of the LED lamps.
- the illumination brightness of the background illumination is matched with the brightness of the display screen, so that the user feels comfortable in the use of the information terminal, and effectively reduces the visual fatigue of the user during use.
- the information terminal receives a correspondence parameter between the color temperature of the display screen and the color temperature of the illumination light input by the user according to the color temperature of the display screen, and transmits the parameter to the control module 4, and the control module 4 requests the information terminal to obtain the parameter of the color temperature of the display screen.
- the color temperature adjustment parameter of the illumination lamp 1 is determined according to the corresponding relationship parameter and the current display color temperature parameter, and a drive control signal is generated and transmitted to the drive module 2 through the USB port.
- the driving module 2 transmits a driving signal to the illumination lamp 1 according to the driving control signal, and adjusts the color ratio of the white LED and the yellow LED to adjust the color temperature of the output light to achieve the required color ratio of the white LED and the yellow LED. Set the color temperature. Therefore, the illumination color temperature of the background illumination is consistent with the display color temperature of the display screen, so that the user feels comfortable in the use of the information terminal, and effectively reduces the visual fatigue of the user during use.
- controlling the illumination state of the illumination lamp 1 by the control module 4 specifically includes: the control module determines the illumination compensation mode; and based on the preset correspondence between the ambient light and the compensation light in the corresponding illumination compensation mode, and the state parameter of the background environment, The display parameters of the display screen are adjusted such that the display parameters of the display screen match the illumination state of the background environment of the user's viewing angle range.
- the ambient light here refers to external light other than the illumination output light of the illumination lamp
- the compensation light refers to the illumination output light of the illumination lamp.
- the compensation light and the ambient light together constitute the background light.
- the compensation mode can include at least two types.
- the compensation light that controls the illumination is directly output as an illumination parameter that best matches the display parameters of the display.
- the compensation light output of the control illumination lamp is the illumination parameter of the lowest limit within the range matching the display parameter of the display screen.
- a certain range of illumination parameters can be matched to achieve the effect of illumination compensation, and there is an optimal value, that is, for the optimal compensation mode.
- This optimal value can be obtained by big data collection analysis for multi-user feedback, or by multiple experiments. Of course, as the user population increases, this optimal value, as well as the range, can be dynamically adjusted.
- the lower limit of this range can be used as the lighting parameter for the energy-saving compensation mode.
- the lighting output is performed in the most energy-saving way, that is, it plays the role of lighting compensation, and can also meet the requirements of energy saving. For example, when the backlight of the backlight unit is insufficient, it is necessary to extend the illumination time as much as possible.
- the corresponding compensation mode may be selected based on the user's selection instruction or based on whether the remaining power reaches the set value.
- the data of the correspondence between the display parameter of the display screen and the illumination parameter of the illumination lamp may also be preset, and the data of the preset correspondence relationship may be stored locally in the information terminal or stored in the cloud.
- the local storage may be stored in a memory (not shown) of the information terminal.
- the memory can be a ROM chip or any other type of solid state non-volatile semiconductor memory.
- the manner of writing to the memory can be implemented by a wired input method, or by an interface connected to the memory, such as an infrared interface, a Bluetooth interface, a USB interface, or the like.
- FIG. 3 a block diagram of a network system composed of the information terminal 20, the background illumination device 10, and the cloud 30 is shown. As shown in FIG. 3, the structure of the background illumination device 10 is as described in the above embodiment.
- the information terminal 20 involved in this embodiment includes, but is not limited to, a smart phone, a personal digital assistant (PAD), a desktop computer, a television, and a projector.
- the information terminal 20 includes at least an input module 5, a display screen 6, and a second USB port 7.
- the input module 5 may be a hardware input device on the information terminal 20 or a software module of a user interface displayed on the display screen 6.
- the display screen 6 is for performing image display on the output information of the information terminal 20.
- a smart phone Taking a smart phone as an example, there are various display screens that can be used depending on the quality of the liquid crystal display (LCD) and the development technology. The types can be roughly included in TFT, TFD, UFB, STN and OLED. Several.
- the background illumination device 10 and the information terminal 20 are connected via the first USB port 3 and the second USB port 7, to realize transmission of data signals, and to supply power to the background illumination device 10.
- an independent power supply module may be provided in the background illumination device 10, for example, by using a battery power supply, or an interface for external power supply may be provided in the background illumination device 10 through an external connection.
- the power supply mode is used to implement power supply to the backlight unit 10.
- the information terminal 20 further includes a camera (not shown). A photo of the background environment of the user's viewing angle is obtained through the camera.
- the lens optical axis of the camera needs a vertical display setting or a substantially vertical display, which is set within ⁇ 30° of the vertical axis of the display optical axis. This is because the optical axis of the user's eye when the user is using the information terminal is usually perpendicular or substantially perpendicular to the display screen.
- the purpose of this setting is to ensure that the sampling range of the camera is as close as possible to the user's visual range.
- the settings of the camera can be set according to the actual usage of the user.
- the display parameters of the display screen can be corrected and calculated according to the lens shooting parameters based on the preset algorithm, thereby correcting the deviation caused by the sampling, and the illumination state in the real scene can be restored, and based on the Calculation.
- the information terminal 20 is connected to the cloud 30 through the network 40, and the information terminal 20 transmits the setting parameter of the illumination parameter of the illumination light input by the user according to the display parameter of the display screen to the cloud 30, and the cloud terminal 30 stores Corresponding relationship list, the correspondence relationship list includes a user ID, a display parameter, and an illumination parameter of the user, and a correspondence relationship between the display parameter of the display screen and the illumination parameter of the illumination lamp; the information terminal 20 downloads the display screen determined according to the correspondence relationship from the cloud terminal The setting parameters for the lighting parameters of the parameter setting illumination are displayed.
- the cloud 30 stores a user habit list corresponding to the user, and the user habit list includes a user ID corresponding to the user, a display parameter of the display screen, an illumination state, and a preset that matches the illumination state of the background environment of the user perspective range. Correspondence relationship.
- the cloud 30 can analyze the user ID of the data, the display parameters of the display screen, the illumination status, and the parameters of the preset correspondence that match the illumination state of the background environment of the user's viewing angle range. Thereby generating a user habit record, recorded in the user habit list.
- the method may be generated according to user statistical analysis, a predetermined algorithm, a predetermined model, and the like.
- a very complete user habit list can be formed, so that when the terminal device used by the user is in a certain illumination state, the display screen suitable for the user can be directly obtained based on the list. Display parameters.
- the cloud 30 After the information terminals 20 transmit the setting parameters to the cloud 30, the cloud 30 performs big data analysis on the setting parameters of the correspondences uploaded from the users of the information terminals 20, and generates universal setting parameters adapted to the public and the niche, thereby making Each information terminal 20 can also synchronize the universally set parameters of the public or niche required by the cloud 30 through the cloud 30.
- the cloud calculates different illumination parameters corresponding to the same display parameter in the correspondence relationship, and compares different illumination parameters with the illumination parameter average value, and when the illumination parameter deviates from the illumination parameter average value is less than the first deviation At the threshold value, the illumination parameters smaller than the first deviation threshold are weighted to generate a universal range of the first range;
- all illumination parameters greater than the first deviation threshold and less than the second deviation threshold are weighted to generate a second range of traits Setting parameters.
- the data whose deviation degree is smaller than the first deviation threshold and the number of samples reaches the first deviation amount is used to calculate the universal preset correspondence of the first range; A range and less than the second range, the number of samples reaching the second deviation amount of data for calculating the second range of trait preset correspondences.
- the cloud may also consider giving different data correction weight coefficients to different user attributes when generating a universal preset correspondence corresponding to the first range and adapting to the second range of the trait preset correspondence, and obtaining the first weighting coefficient by normalization processing.
- the user's age, gender, occupation, and the like can be collected, and different data are collected for different categories of people.
- the display parameter of the 20-30 year old user, the illumination state, and the parameter of the preset correspondence relationship whose display parameter matches the illumination state of the background environment of the user's viewing angle range may be weighted by 70% for 40 years old.
- the above user's data is weighted by 30% and then calculated. The above data is only an example.
- the background illumination device of the information terminal provided by the embodiment of the present invention can perform illumination control of the sampled image based on the display parameters such as brightness and color temperature of the screen of the information terminal used by the user, and adjust the illumination of the background environment, thereby making the brightness of the display screen,
- the display parameters such as the color temperature match the illumination state of the background environment, so that the screen display conforms to the visual perception of the user, thereby effectively reducing the visual fatigue of the user during use and protecting the visual health of the user.
- the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
- the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.
Abstract
一种信息终端的背景照明装置，包括照明灯(1)、控制照明灯(1)的驱动模块(2)和连接信息终端的第一端口(3)；背景照明装置还包括控制模块(4)，安装于信息终端上或者设置于背景照明装置中；安装于信息终端上的控制模块(4)通过信息终端的第二端口与第一端口(3)连接，对照明灯(1)的照明状态进行控制；设置于背景照明装置中的控制模块(4)与驱动模块(2)相接，对照明灯(1)的照明状态进行控制；并且通过第一端口(3)与信息终端的第二端口连接；其中，控制模块(4)接收用户根据信息终端的显示屏的显示参数输入的操控数据发送给驱动模块(2)，从而进一步调节所述照明灯的照明参数，以控制照明灯的照明输出。
Description
本申请要求于2017年6月2日提交中国专利局、申请号为201710406794.5、发明名称为“一种信息终端的背景照明装置”的中国专利申请的优先权。
本发明涉及照明技术领域，尤其涉及一种信息终端的背景照明装置。
在手机、平板等互联网电子产品发展方兴未艾的今天，越来越多的人因为长时间盯着手机等视频终端，造成人眼视觉疲劳，从而导致视力下降，影响到视觉健康。
目前，智能手机大多自带的自动亮度调整模式，通过位置设置于听筒附近的亮度传感器识别周围的光线环境进行周围环境的亮度检测，然后根据预置算法进行屏幕显示亮度的计算。
但是用户在使用中往往还是会遇到这种自动调节方式下屏幕亮度的显示并不能符合自己的视觉感知的情形，尤其是对于周围环境亮度相对较暗的场景，即便是进行显示屏的亮度的调整，也依然无法完全适配周围环境的亮度并同时兼顾用户的正常可视化需求。对此目前业内还没有一个很好的方式来解决上述问题。
发明内容
本发明的目的是提供一种信息终端的背景照明装置，能够基于用户使用的信息终端的屏幕显示亮度、色温等显示参数，进行采样图像的照明控制， 调节背景环境的照明，从而使得显示屏的亮度、色温等显示参数与背景环境的照明状态相匹配，使屏幕显示与使用者的视觉感知相符，由此能够有效减缓使用者在使用过程中的视觉疲劳，保护使用者的视觉健康。
为实现上述目的，本发明实施例提供了一种信息终端的背景照明装置，包括照明灯、控制照明灯的驱动模块和连接信息终端的第一端口；所述背景照明装置还包括控制模块，安装于所述信息终端上或者设置于所述背景照明装置中；
所述控制模块通过所述信息终端的第二端口与所述第一端口连接，对所述照明灯的照明状态进行控制；或者
设置于所述背景照明装置中的控制模块与所述驱动模块相接，对所述照明灯的照明状态进行控制；并且通过所述第一端口与所述信息终端的第二端口连接；
其中，所述控制模块对所述照明灯的照明状态进行控制具体包括：
所述控制模块确定照明补偿模式；
基于相应的照明补偿模式下的环境光和补偿光的预置对应关系，和所述背景环境的状态参数，对显示屏的显示参数进行调节，使所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态相匹配。
优选的，所述控制模块还接收用户根据所述信息终端的显示屏的显示参数输入的操控数据，发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出。
优选的，所述控制模块接收用户根据所述信息终端的显示屏的显示参数输入的操控数据发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出具体为：
所述控制模块接收用户根据所述信息终端的显示屏的显示参数输入的照明灯的照明参数的调整参数，发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出。
进一步优选的，所述控制模块接收用户根据所述信息终端的显示屏的显示参数输入的操控数据发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出具体为：所述控制模块接收用户根据所述信息终端的显示屏的显示参数输入的所述信息终端的显示屏的显示参数与所述照明灯的照明参数的对应关系的数据，使所述照明灯的照明参数随着显示屏的显示参数而相应的调节。
进一步优选的，所述对应关系为列表映射或函数映射关系。
进一步优选的，所述操控数据的输入具体为：
通过所述信息终端上或所述背景照明装置中的硬件输入装置进行操作输入；或者通过在所述信息终端的显示屏上进行显示的用户界面进行操作输入。
进一步优选的，所述信息终端通过网络与云端连接，将用户根据所述显示屏的显示参数输入的照明灯的照明参数的设置参数传输到所述云端，
所述云端保存有对应关系列表，所述对应关系列表中包括所述用户的用户ID、所述显示参数和照明参数，以及显示屏的显示参数与所述照明灯的照明参数的对应关系；
所述信息终端从所述云端下载根据所述对应关系确定的显示屏的显示参数设置所述照明灯的照明参数的设置参数。
进一步优选的，所述云端根据不同的用户上传的对应关系进行数据分析，生成适应于第一范围的普适设置参数和适应于第二范围的特质设置参数，用以各个所述信息终端通过所述云端同步所需的所述普适设置参数以及所述特质设置参数。
进一步优选的，所述云端的数据分析具体为：
所述云端计算所述对应关系中相同的显示参数所对应的不同的照明参数，将不同的照明参数与照明参数平均值进行比较处理，当所述照明参数偏离所述照明参数平均值小于第一偏离阈值时，将所有小于第一偏离阈值的照明参数进行加权处理，从而生成第一范围的普适设置参数；
当所述照明参数偏离所述照明参数平均值大于第一偏离阈值且小于第二偏离阈值时，将所有大于第一偏离阈值且小于第二偏离阈值的照明参数进行加权处理，从而生成第二范围的特质设置参数
优选的，所述信息终端通过所述第二端口对所述照明灯供电；所述第一端口和所述第二端口分别为USB端口。
本发明实施例提供的信息终端的背景照明装置，能够基于用户使用的信息终端的屏幕显示亮度、色温等显示参数，进行采样图像的照明控制，调节背景环境的照明，从而使得显示屏的亮度、色温等显示参数与背景环境的照明状态相匹配，使屏幕显示与使用者的视觉感知相符，由此能够有效减缓使用者在使用过程中的视觉疲劳，保护使用者的视觉健康。
图1为本发明实施例提供的一种信息终端的背景照明装置的结构示意图；
图2为本发明实施例提供的另一种信息终端的背景照明装置的结构示意图；
图3为本发明实施例提供的具有信息终端与背景照明装置的网络系统结构图。
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。
为了更好的理解本发明所提出的信息终端的背景照明装置及其工作方式，首先对环境光线对于用户观看显示屏时的视觉影响进行说明。
在用户观看显示屏时，背景环境照明状态对显示屏的视觉效果影响很大，人眼在观看任何物体时，能根据物体的亮度调节瞳孔的大小来适应，亮度越高瞳孔调得越小，亮度越低瞳孔调得越大。我们通常观看显示屏的视觉范围只占我们眼睛的视觉范围的10％以内。
比如，在使用一个5寸显示屏的手机时，手机放在距离眼睛30cm左右的位置，我们眼睛的视觉立体角大约120度，眼睛在30cm处的视觉范围大约为8482cm
2，而5寸显示屏的手机的面积不大于100cm
2，手机显示屏占人眼的视觉范围不到2％。再比如,在使用一个20寸显示屏的电脑时，显示屏放在距离眼睛50cm左右的位置，此时眼睛在50cm处的视觉范围大约为23562cm
2，而20寸电脑显示屏的面积不大于1200cm
2，电脑显示屏占人眼的视觉范围不到6％。所以眼睛的瞳孔大小主要受显示屏的背景环境照明状态的影响。为了让用户在使用显示屏的时更加舒适，显示屏的亮度必须根据瞳孔的大小来调节，也即根据显示屏的背景环境照明状态来调节，从而对用户的视觉健康起到一定的保护作用。
图1、图2分别为本实施例提供的信息终端的背景照明装置的两种实现方式的示意图，如图所示，本实施例提供的背景照明装置包括：照明灯1、控制照明灯的驱动模块2、连接信息终端的第一USB端口3和控制模块4。
照明灯1，可以采用多色LED灯，比如由多颗黄光LED和白光LED组成的灯，可以提供不同亮度、色温等组合的照明参数的照明输出。
驱动模块2，具体为驱动LED发光或LED模块组件正常工作的电源调整电子器件。由于LED PN结的导通特性决定，它能适应的电源的电压和电流变动范围十分狭窄，稍许偏离就可能无法点亮LED或者发光效率严重降低，或者缩短使用寿命甚至烧毁芯片，因此需要单独的驱动模块2来驱使LED在最佳电压或电流状态下工作。
第一USB端口3,用于通过信息终端的第二USB端口进行数据交互。虽然在本例中以USB接口进行了举例，但在实际应用中，端口也可以采用除了USB端口之外的其他端口，比如串口、蓝牙端口来实现信息终端到背景照明装置的数据交互。
控制模块4，可以安装于信息终端上，也可以安装于背景照明装置中。
如图1所示，控制模块4安装于信息终端上，与信息终端的输入模块相 连接，接收用户根据信息终端的显示屏的显示参数输入的操控指令，并处理为操控数据发送给驱动模块，通过驱动模块调节照明灯的照明参数，控制照明灯的照明输出。
其中，显示屏的显示参数至少包括亮度和/或色温，照明灯的照明参数也至少包括亮度和/或色温。
如图2所示，控制模块4设置于背景照明装置中，与驱动模块2相接，对照明灯的照明状态进行控制。并且控制模块4通过第一USB端口与信息终端的第二USB端口连接，实现数据传输。
以上两种控制模块4的设置方式，仅在数据传输上具有差异，因此下述仅以图1为例，对本发明的技术方案进行描述。本领域技术人员可以根据本实施例提供的技术方案，获知在如图2所示的例子中所采用的方案。
具体的，用户可以根据信息终端的显示屏的显示参数，通过信息终端的输入模块直接输入照明灯1的照明参数的调整参数，从而通过控制模块4进行处理，将处理后得到的驱动控制信号通过USB端口输出给驱动模块2驱动调节照明灯1的照明参数从而控制光线输出；也可以是通过信息终端的输入模块输入信息终端的显示屏的显示参数与照明灯1的照明参数的对应关系的数据，同时控制模块4获取显示屏的显示参数，对于上述数据和参数由控制模块4进行处理，将处理后得到的驱动控制信号输出给驱动模块2驱动控制照明灯1，使照明灯1的照明参数随着显示屏的显示参数而相应的调节。这里所说的对应关系，是指列表映射或函数映射关系。
下面以两个具体的例子，对整个工作过程进行说明。
在一个具体的例子中，信息终端接收用户根据显示屏的亮度输入的亮度调整参数，传输给控制模块4，控制模块4对亮度调整参数进行处理，生成驱动控制信号，通过USB端口传输给驱动模块2。驱动模块2根据驱动控制信号输入驱动信号传输给照明灯1，通过点亮或关闭LED灯的数量，或者调整LED灯的发光电流值来使输出光线的照明亮度达到所需的设定亮度。从而使得背 景照明的照明亮度与显示屏的亮度相匹配，使用户在信息终端的使用中视觉感觉舒适，有效减缓使用者在使用过程中的视觉疲劳。
在另一个具体的例子中，信息终端接收用户根据显示屏的色温输入的显示屏色温与照明灯色温的对应关系参数，传输给控制模块4，控制模块4向信息终端请求获取显示屏色温的参数，根据对应关系参数和当前的显示屏色温的参数，确定照明灯1的色温调整参数，生成驱动控制信号，通过USB端口传输给驱动模块2。驱动模块2根据驱动控制信号输入驱动信号传输给照明灯1，通过调整点亮的白光LED和黄光LED的数量比或者调整白光LED和黄光LED发光电流比来使输出光线的色温达到所需的设定色温。从而使得背景照明的照明色温与显示屏的显示色温相符合，使用户在信息终端的使用中视觉感觉舒适，有效减缓使用者在使用过程中的视觉疲劳。
进一步的，控制模块4对照明灯1的照明状态进行控制具体包括：控制模块确定照明补偿模式；基于相应的照明补偿模式下的环境光和补偿光的预置对应关系，和背景环境的状态参数，对显示屏的显示参数进行调节，使显示屏的显示参数与所述用户视角范围的背景环境的照明状态相匹配。这里的环境光是指除了照明灯的照明输出光之外的外界光，补偿光就是指照明灯的照明输出光。补偿光和环境光共同构成了背景光。
补偿模式可以至少包括两种。
一种是最优补偿模式，另外一种是节能补偿模式。
在最优补偿模式下，控制照明灯的补偿光直接输出为与显示屏的显示参数最佳匹配的照明参数。
在节能补偿模式下，控制照明灯的补偿光输出为与显示屏的显示参数匹配范围内最下限的照明参数。
对于一个或一组显示参数来说，可以有一定范围内的照明参数都是与之相匹配的，能够达到照明补偿的效果，其中有一个最优值，即用于最优补偿模式。这个最优值可以通过对于多用户反馈的大数据收集分析而获得，或者 通过多次实验获得。当然随着用户人群的增加，这个最优值，以及该范围都可以动态调整。
而这个范围的下限值，即可以作为节能补偿模式的照明参数。在这种模式下，以最节省能源的方式，进行照明输出，即起到照明补偿的作用，也能满足节能的要求。比如在背景照明装置的电量不足的情况下，需要尽可能延长照明时间时，就可以采用这种模式。
在实际应用过程中，可以基于用户的选择指令，或者基于剩余电量是否达到设定值，来选择相应的补偿模式。
进一步的，显示屏的显示参数与照明灯的照明参数的对应关系的数据也可以是预置的，该预置的对应关系的数据可以存储在信息终端本地或者存储在云端。
具体的，在本地的存储可以是存储在信息终端的存储器(图中未示出)中。存储器可以是ROM芯片或任何其他类型的固态非易失性半导体存储器。对存储器中写入的方式可以通过有线的输入方式来实现，还可以通过连接于存储器的接口，例如红外接口、蓝牙接口、USB接口等来实现。
在图3中，示出了信息终端20、背景照明装置10以及云端30组成的网络系统框图，如图3所示，背景照明装置10的结构如上述实施例中所述。
本实施例中涉及的信息终端20包括但不限于智能手机、平板电脑(Personal Digital Assistant，PAD)、台式电脑、电视机和投影仪。信息终端20至少包括输入模块5、显示屏6和第二USB端口7。
其中，输入模块5可以是信息终端20上的硬件输入装置，也可以是显示屏6上显示的用户界面的软件模块。
显示屏6用于对信息终端20的输出信息进行图像显示。以智能手机为例，可以采用的显示屏有多种，具体因液晶显示器(Liquid Crystal Display，LCD)品质和研发技术不同而有所差异，其种类大致可以包括TFT、TFD、UFB、STN和OLED几种。
背景照明装置10与信息终端20通过第一USB端口3和第二USB端口7相接，实现数据信号的传输，并且实现向背景照明装置10的供电。
当然，除了采用USB端口实现供电之外，还可以在背景照明装置10中设置独立的供电模块，例如采用电池供电的方式，或者可以在背景照明装置10中设置用于外接电源的接口，通过外接电源的方式来实现背景照明装置10的供电。
在优选的方案中，信息终端20还包括摄像头(图中未示出)。通过摄像头获取用户视角范围的背景环境的照片。
为保证摄像头所采集到的图像与用户视角范围相一致，摄像头的镜头光轴需要垂直显示屏设置或大致垂直显示屏，在显示屏光轴垂线的±30°范围内设置。这是因为，用户在使用信息终端时用户眼部的光轴通常是与显示屏垂直或基本垂直的。当然，这样设置的目的是为了尽量保证摄像头的采样范围与用户视觉范围相一致。具体的应用中，摄像头的设置可以根据用户实际使用情况进行设置。
需要特别说明的是，对于拍摄时摄像头镜头设置参数的不同，光圈、快门速度、焦距等参数都会对背景环境的采样图像产生一定的影响，有可能会导致背景的采样图像与实际还是存在一定差异。
因此在优选的方案中，可以基于预设的算法，根据镜头拍摄参数，对显示屏的显示参数进行修正计算，从而修正采样所造成的偏差，能够还原真实场景下的照明状态，并基于此进行计算。
在本实施例的网络系统中，信息终端20通过网络40与云端30连接，信息终端20将用户根据显示屏的显示参数输入的照明灯的照明参数的设置参数传输到云端30，云端30保存有对应关系列表，对应关系列表中包括用户的用户ID、显示参数和照明参数，以及显示屏的显示参数与照明灯的照明参数的对应关系；信息终端20从云端下载根据对应关系确定的显示屏的显示参数设置照明灯的照明参数的设置参数。
云端30保存有用户所对应的用户习惯列表，用户习惯列表包括该用户对应的用户ID、显示屏的显示参数、照明状态、以及显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系。
通过信息终端上传的数据，云端30可以分析得到该数据的用户ID，显示屏的显示参数、照明状态、以及显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系的参数，从而生成一条用户习惯记录，记录在用户习惯列表中。其中，对应关系的生成方式方法有很多，具体可以根据用户统计分析、预定算法、预定模型等来进行生成。通过对每一次用户使用调整的记录，就可以形成一个数据非常完整的用户习惯列表，从而就能够在用户使用的终端设备处于某种照明状态时，基于这个列表直接得到适于用户的显示屏的显示参数。
在各个信息终端20将设置参数传输到云端30之后，云端30将来自各信息终端20用户上传的对应关系的设置参数进行大数据分析，生成适应于大众和小众的普适设置参数，从而使得各信息终端20也可通过云端30同步各自所需的大众或小众的普适的设置参数。
在一个具体的例子中，云端计算对应关系中相同的显示参数所对应的不同的照明参数，将不同的照明参数与照明参数平均值进行比较处理，当照明参数偏离照明参数平均值小于第一偏离阈值时，将小于第一偏离阈值的照明参数进行加权处理，从而生成第一范围的普适设置参数；
当照明参数偏离所述照明参数平均值大于第一偏离阈值且小于第二偏离阈值时，将所有大于第一偏离阈值且小于第二偏离阈值的照明参数进行加权处理，从而生成第二范围的特质设置参数。
也就是说，在上面提到的算法中，将偏离度小于第一偏离阈值且样本数量达到第一偏离数量的数据，用于计算第一范围的普适预置对应关系；将偏离度大于第一范围且小于第二范围，样本数量达到第二偏离数量的数据，用于计算第二范围的特质预置对应关系。
云端在生成适应于第一范围的普适预置对应关系以及适应于第二范围的特质预置对应关系时还可以考虑对不同用户属性给予不同的数据修正权重系数，通过归一化处理得到第一范围的普适预置对应关系以及适应于第二范围的特质预置。
具体的，可以在采集用户数据时，采集用户的年龄、性别、职业等等，对于不同类别的人群，对其采集数据加以不同的权重。
比如对于20-30和40岁以上用户，在计算适用于大众的预置对应关系参数时，可以考虑面向用户的年龄结构，比如70％用户为20-30岁用户，其余为40岁以上用户，则在计算时，可以对于20-30岁用户的显示参数、照明状态、以及显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系的参数加以70％的权重，对于40岁以上用户的数据加以30％权重再进行计算。以上数据仅为举例说明。
对于不同职业、未成年人/成年人等，在使用习惯上会有明显区别的用户，均可参照上述方法，采用加权处理的方式以获取更加适合大众或小众的普适的设置参数。
本发明实施例提供的信息终端的背景照明装置，能够基于用户使用的信息终端的屏幕显示亮度、色温等显示参数，进行采样图像的照明控制，调节背景环境的照明，从而使得显示屏的亮度、色温等显示参数与背景环境的照明状态相匹配，使屏幕显示与使用者的视觉感知相符，由此能够有效减缓使用者在使用过程中的视觉疲劳，保护使用者的视觉健康。
专业人员应该还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为 超出本发明实施例的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (10)
- 一种信息终端的背景照明装置，包括照明灯、控制照明灯的驱动模块和连接信息终端的第一端口；其特征在于，所述背景照明装置还包括控制模块，安装于所述信息终端上或者设置于所述背景照明装置中；所述安装于所述信息终端上的控制模块通过所述信息终端的第二端口与所述第一端口连接，对所述照明灯的照明状态进行控制；或者设置于所述背景照明装置中的控制模块与所述驱动模块相接，对所述照明灯的照明状态进行控制；并且通过所述第一端口与所述信息终端的第二端口连接；其中，所述控制模块对所述照明灯的照明状态进行控制具体包括：所述控制模块确定照明补偿模式；基于相应的照明补偿模式下的环境光和补偿光的预置对应关系，和所述背景环境的状态参数，对显示屏的显示参数进行调节，使所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态相匹配。
- 根据权利要求1所述的背景照明装置，其特征在于，所述控制模块还接收用户根据所述信息终端的显示屏的显示参数输入的操控数据，发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出。
- 根据权利要求2所述的背景照明装置，其特征在于，所述控制模块接收用户根据所述信息终端的显示屏的显示参数输入的操控数据发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出具体为：所述控制模块接收用户根据所述信息终端的显示屏的显示参数输入的照明灯的照明参数的调整参数，发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出。
- 根据权利要求2所述的背景照明装置，其特征在于，所述控制模块接 收用户根据所述信息终端的显示屏的显示参数输入的操控数据发送给所述驱动模块，从而进一步调节所述照明灯的照明参数，以控制所述照明灯的照明输出具体为：所述控制模块接收用户根据所述信息终端的显示屏的显示参数输入的所述信息终端的显示屏的显示参数与所述照明灯的照明参数的对应关系的数据，使所述照明灯的照明参数随着显示屏的显示参数而相应的调节。
- 根据权利要求4所述的背景照明装置，其特征在于，所述对应关系为列表映射或函数映射关系。
- 根据权利要求4所述的背景照明装置，其特征在于，所述操控数据的输入具体为：通过所述信息终端上或所述背景照明装置中的硬件输入装置进行操作输入；或者通过在所述信息终端的显示屏上进行显示的用户界面进行操作输入。
- 根据权利要求6所述的背景照明装置，其特征在于，所述信息终端通过网络与云端连接，将用户根据所述显示屏的显示参数输入的照明灯的照明参数的设置参数传输到所述云端，所述云端保存有对应关系列表，所述对应关系列表中包括所述用户的用户ID、所述显示参数和照明参数，以及显示屏的显示参数与所述照明灯的照明参数的对应关系；所述信息终端从所述云端下载根据所述对应关系确定的显示屏的显示参数设置所述照明灯的照明参数的设置参数。
- 根据权利要求7所述的背景照明装置，其特征在于，所述云端根据不同的用户上传的对应关系进行数据分析，生成适应于第一范围的普适设置参数和适应于第二范围的特质设置参数，用以各个所述信息终端通过所述云端同步所需的所述普适设置参数以及所述特质设置参数。
- 根据权利要求8所述的背景照明装置，其特征在于，所述云端的数据分析具体为：所述云端计算所述对应关系中相同的显示参数所对应的不同的照明参 数，将不同的照明参数与照明参数平均值进行比较处理，当所述照明参数偏离所述照明参数平均值小于第一偏离阈值时，将所有小于第一偏离阈值的照明参数进行加权处理，从而生成第一范围的普适设置参数；当所述照明参数偏离所述照明参数平均值大于第一偏离阈值且小于第二偏离阈值时，将所有大于第一偏离阈值且小于第二偏离阈值的照明参数进行加权处理，从而生成第二范围的特质设置参数。
- 根据权利要求1所述的背景照明装置，其特征在于，所述信息终端通过所述第二端口对所述照明灯供电；所述第一端口和所述第二端口分别为USB端口。
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