WO2018219290A1

WO2018219290A1 - Information terminal

Info

Publication number: WO2018219290A1
Application number: PCT/CN2018/089003
Authority: WO
Inventors: 陈梓平; 赵峰; 谢名豪
Original assignee: 广东野光源眼科技有限公司
Priority date: 2017-06-02
Filing date: 2018-05-30
Publication date: 2018-12-06
Also published as: CN108986770A; CN108986770B

Abstract

An information terminal (10), comprising a display screen (1), a communication device (3), a photosensitive device (2) and a display screen display parameter adjustment unit (4); the photosensitive device (2) acquires state parameters of the background environment of the information terminal (10) and sends the same to the display screen display parameter adjustment unit (4); the display screen display parameter adjustment unit (4) adjusts display parameters of the display screen (1) according to the state parameters of the background environment on the basis of a preset corresponding relationship between the display parameters of the display screen (1) and the state parameters of the background environment, so that the display parameters of the display screen (1) match the lighting state of the background environment of the information terminal (10), wherein the display parameters comprise at least brightness and/or color temperature; the display screen display parameter adjustment unit (4) comprises an adjustment device used for adjusting the display parameters of the display screen (1), which changes the preset corresponding relationship between the display parameters of the display screen (1) and the lighting state of the background environment after adjusting the display parameters so as to generate a modified corresponding relationship.

Description

Information terminal

This application claims priority to Chinese Patent Application No. 200910406793.0, filed on Jun. 2, 2017, entitled "an Information Terminal".

Technical field

The present invention relates to the field of lighting technologies, and in particular, to an information terminal.

Background technique

Today, the development of Internet electronic products such as mobile phones and tablets is on the rise. More and more people are staring at video terminals such as mobile phones for a long time, causing visual fatigue of the human eye, which leads to decreased vision and affects visual health.

At present, most of the smartphones have their own automatic brightness adjustment mode. 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.

However, the user often encounters the display of the brightness of the screen in the automatic adjustment mode, which does not conform to his own visual perception. This is due to the error between the ambient brightness detection and the user's angle of view through the brightness sensor, and Only due to the limitations of brightness regulation. There is currently no better way to solve the above problems in the industry.

Summary of the invention

An object of the present invention is to provide an information terminal capable of adjusting display parameters such as brightness and color temperature of a display screen based on sampling of illumination of a background environment, state parameters of a background environment obtained, and brightness, color temperature, etc. of the display screen. The display parameters are matched with the illumination state of the background environment of the information terminal, 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. Moreover, the parameter correction can be performed according to the personalized requirements of the user, and the pervasive calculation correction of the preset parameters of the display parameter and the background illumination is performed based on the corrected parameters, so as to make it more in line with the user's usage habits.

To achieve the above objective, an embodiment of the present invention provides an information terminal, including a display screen and a communication device, where the information terminal further includes a photosensitive device and a display screen display parameter adjustment unit;

The photosensitive device acquires a state parameter of a background environment of the information terminal, and sends the status parameter to the display screen display parameter adjusting unit;

The display screen display parameter adjustment unit adjusts the display parameter of the display screen according to the state parameter of the background environment based on a preset correspondence relationship between the display parameter of the display screen and the state parameter of the background environment, so that the display parameter of the display screen is adjusted according to the state parameter of the background environment, so that The display parameter of the display screen matches the illumination state of the background environment of the information terminal; wherein the display parameter includes at least brightness and/or color temperature;

The display display parameter adjustment unit includes: an adjustment device for adjusting display parameters of the display screen; after adjusting the display parameter, displaying display parameters of the display screen and illumination of the background environment The preset correspondence of the state changes, and a corrected correspondence is generated.

Preferably, the photosensitive device faces away from the display screen and is disposed on the information terminal.

Preferably, the information terminal is connected to the cloud through a network, and transmits a parameter of a preset correspondence relationship between the display parameter of the display screen and the illumination state of the background environment to the cloud for synchronization; The cloud saves a user habit list corresponding to the user, where the user habit list includes a user ID corresponding to the user, a display parameter of the display screen, an illumination status, and an illumination state of the display environment and the background environment of the user's viewing angle range. Matching preset correspondences.

Preferably, the cloud performs data analysis according to a preset correspondence relationship between the display parameter of the display screen and the illumination state of the background environment, and a parameter of the modified correspondence relationship, to generate a universality suitable for the first range. The preset correspondence relationship and the trait preset correspondence corresponding to the second range.

Further preferably, the data analysis of the cloud is specifically:

And calculating, by the cloud, a degree of deviation and a deviation of the preset correspondence relationship from the preset correspondence relationship, and performing a weighting process on the corrected correspondence relationship that is the first deviation amount and smaller than the first deviation threshold value, and the preset correspondence relationship is weighted a universal preset correspondence relationship of the first range;

A modified correspondence relationship that reaches the second deviation number and is greater than the first deviation threshold and smaller than the second deviation threshold is weighted with the preset correspondence, thereby generating a trait preset correspondence of the second range.

Preferably, the universal preset correspondence is used by the information terminal used by the ubiquitous user to acquire through the cloud, thereby matching the display parameter of the display screen with the illumination state of the background environment of the user perspective range. The universal preset correspondence relationship.

Preferably, the trait correspondence is used by the information terminal used by a user who meets the trait condition to acquire through the cloud, thereby matching the display parameter of the display screen with the temperaty of the illumination state of the background environment. Set the correspondence.

Preferably, the adjusting the display parameter of the display screen according to the state parameter of the background environment specifically includes:

Determining an absolute value of the target brightness according to the state parameter of the background environment and the preset correspondence relationship;

Determining a display brightness percentage of the display screen according to the target brightness absolute value;

Outputting a display display actual brightness according to the display brightness percentage of the display screen; wherein the display display actual brightness and the maximum brightness of the display screen are displayed by the display brightness percentage Pre-calibration.

Preferably, the information terminal further includes a collection image positioning device;

The acquiring image positioning device locates each frame image collected by the camera, and performs fusion splicing processing on the multi-frame image collected by the camera according to the positioning, thereby obtaining a photo analog signal of a background environment of the user's viewing angle range or Photo digital signal.

Preferably, the photo detecting unit is further configured to perform blind spot analysis on the photo analog signal or the photo digital signal, and perform simulation prediction on the analyzed blind spot region, thereby combining the simulated prediction result with the photo analog signal or The photo digital signal generates the digitized photo data.

The information terminal provided by the embodiment of the present invention adjusts display parameters such as brightness and color temperature of the display screen based on the sampling of the lighting of the background environment, the state parameter of the background environment obtained, and the display parameters such as brightness and color temperature of the display screen. The illumination state of the background environment of the information terminal is matched, 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. Moreover, the parameter correction can be performed according to the personalized requirements of the user, and the pervasive calculation correction of the preset parameters of the display parameter and the background illumination is performed based on the corrected parameters, so as to make it more in line with the user's usage habits.

DRAWINGS

FIG. 1 is a schematic structural diagram of an information terminal according to an embodiment of the present disclosure;

FIG. 2 is a structural diagram of a system with multiple information terminals according to an embodiment of the present invention.

detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

In order to better understand the information terminal and the working mode thereof proposed by the present invention, firstly, the visual impact of the ambient light on the user's viewing of the display screen will be described.

When the user views the display screen, the illumination state of the background environment has a great influence on the visual effect of the display screen. When the human eye views any object, 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. We usually watch the visual range of the display only within 10% of the visual range of our eyes.

For example, 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%. For example, 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. ² , 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, the brightness of the display must be adjusted according to the size of the pupil, that is, according to the lighting state of the background environment of the display.

The adjustment of the brightness of the display screen in the information terminal of the invention is especially suitable for use in a dark environment.

Therefore, in different external environments, if the display screen of the information terminal can be adjusted and displayed according to the display parameters such as light and dark, color temperature and the like in accordance with the environment of the external environment, especially the user's perspective, the visual health of the user can be certain. Protection.

The information terminal of the present invention includes, but is not limited to, a smart phone, a personal digital assistant (PAD), a desktop computer, a television, and a projector.

Figure 1 is a schematic diagram of the information terminal provided by the embodiment. As shown in the figure, the information terminal provided by the embodiment includes: a display screen 1, a photosensitive device 2, a communication device 3, and a display screen display parameter adjusting unit 4;

The display screen 1 is used for image display of the output information of the information terminal. Taking a smart phone as an example, there are various display screens that can be used, which differ depending on the quality of the liquid crystal display (LCD) and the research and development technology, and the types thereof may roughly include TFT, TFD, UFB, STN, and Several kinds of OLEDs.

The photosensitive device 2 may specifically be an ambient light sensor. When the ambient brightness is high, the liquid crystal display using the ambient light sensor will automatically adjust to high brightness. When the external environment is dark, the display will be adjusted to low brightness to achieve automatic brightness adjustment. That is to say, by using an ambient light sensor, the visibility of the display 1 is optimized according to the light level.

When using an information terminal such as a smartphone or a tablet, the distance between the user's eye position and the information terminal is usually about 30 cm. Since the information terminal is a portable product, it is displaced by the activity of the person, and usually their background is empty. In this case, the proper placement position of the photosensitive device 2 is integrally provided on the information terminal. In the case of collecting the state parameters of the background environment of the information terminal, the photosensitive device 2 is preferably arranged facing away from the display screen 1 and integrated on the information terminal. That is, in the case where the display screen 1 is disposed on the front side of the information terminal, the photosensitive device 2 is preferably disposed on the back side of the information terminal.

The display screen display parameter adjustment unit 4 display screen display parameter adjustment unit 4 is connected to the photosensitive device 2 and the display screen 1 and the communication device 3, respectively. The display display parameter adjustment unit 4 adjusts the display parameters of the display screen according to the state parameters of the background environment based on the preset correspondence relationship, so that the display parameters of the display screen match the illumination state of the background environment.

Wherein, the display parameters include at least brightness and/or color temperature.

In this embodiment, the ambient light condition of the background environment and the display parameter of the display screen have a preset correspondence relationship, and the data of the preset correspondence relationship may be stored locally in the information terminal or stored in the cloud. The connection with the cloud is implemented by the communication device 3 on the information terminal side.

Specifically, 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.

Further, the display display parameter adjustment unit 4 includes adjustment means (not shown) for changing the preset correspondence to match the display parameters of the display screen and the illumination state of the background environment. The adjusting device may be a hardware module disposed in the information terminal or a software module disposed on the display screen.

In the present embodiment, the parameter control of the display screen is the actual display output of the control. In this process, the difference between the lens model of different manufacturers for image capturing and the self-compensation of the image are considered.

Take the brightness control as an example to control the brightness of the actual display. We used a method to control the maximum brightness percentage to control the actual display brightness. Specifically, the method includes: determining an absolute value of the target brightness according to the state parameter of the background environment and the preset correspondence relationship; determining a percentage of the display brightness of the display screen according to the absolute value of the target brightness; and outputting a display that matches the absolute value of the target brightness according to the display brightness percentage of the display screen The actual display brightness; wherein the actual display brightness of the display and the absolute value of the maximum brightness of the display are pre-calibrated by the percentage of display brightness.

In addition, the photo-detection unit 3 generates an anti-compensation parameter according to the model parameter and/or the self-compensation parameter of the camera, and converts the photo analog signal or the photo digital signal acquired by the camera into digitized photo data based on the anti-compensation parameter.

In a preferred solution, in order to ensure that the obtained state parameter of the background environment of the user's viewing angle range, the information terminal of the present invention further includes an image capturing device (not shown). Because there may be some deviation between the range of the captured image and the range of the human visual field during image acquisition, the range of the human visual field is usually larger than the range of an image captured by the camera. Therefore, it is necessary to combine The image capturing device is configured to perform positioning on the collected image to enable image stitching so that the stitched image is consistent with the image of the human eye visual field.

The acquiring image positioning device is specifically configured to locate each frame image collected by the camera, and perform fusion fusion processing on the multi-frame image collected by the camera according to the positioning, thereby obtaining a photo analog signal or a photo digital signal of a background environment of the user's viewing angle range. .

The acquisition image positioning device can be specifically implemented by using a gyroscope. In the image acquisition process, the image is positioned according to the gyroscope, and the multi-frame image acquired in a certain period of time (for example, 24 images are captured in one second) is image-spliced according to the positioning parameters of the gyroscope. The work of image stitching can be done by the photo inspection unit.

When the user uses the information terminal, the information terminal can be moved within a certain range, so that the gyroscope senses the position change, and starts the shooting of the multi-frame image by the camera.

In the image splicing, it is also necessary to take into account the distortion of the image caused by the movement of the information terminal, and it is necessary to correct the distortion to obtain a planar image. In addition, according to the positioning of the gyroscope, different weight values are assigned to single-frame images of different angles and different positions, and image mosaic fusion calculation is performed according to different weights in image stitching and fusion processing.

In addition, even in this way, there may be a blind spot area in the spliced image. In this case, blind spot analysis is performed on the acquired photo analog signal or photo digital signal, and the blind spot area obtained by the analysis is simulated and predicted. The resulting digitized photo data is thus generated in conjunction with the simulated prediction results and the photo analog signal or photo digital signal.

In addition, the image obtained after splicing can be analyzed to identify the defective pixel dot area. For the identified defective pixel area, a fuzzy algorithm or other algorithm may be used for correction, so that the photographic data of the background area obtained after splicing is more consistent with the real human visual field perception.

In addition, as shown in FIG. 2, in the system for accessing the cloud, each information terminal 10 can be connected to the cloud 30 through the network 20 to match the display parameters of the display screen 1 with the illumination state of the background environment of the user's viewing angle range. The parameters of the preset correspondence are transmitted to the cloud 30 for synchronization. Similarly, the preset correspondence parameter that matches the display parameter of the display 1 with the state of the background environment can also be synchronized by the cloud 30.

The cloud saves 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.

Through the data uploaded by the information terminal, the cloud can analyze the user ID of the data, the display parameter 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 Generate a user habit record, recorded in the user habit list. There are many methods for generating the corresponding relationship, and the method may be generated according to user statistical analysis, a predetermined algorithm, a predetermined model, and the like. By making a record of each user's adjustment, 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.

Further, the cloud 30 can perform big data statistics and analysis on the preset correspondence data to provide data for the plurality of information terminals 10 accessing the cloud 30. The cloud 30 can perform data analysis on the parameters of the preset correspondence relationship from the plurality of information terminals 10, and generate preset corresponding relationship parameters adapted to the public and the niche, so that each information terminal 10 synchronizes the respective publics required by the cloud 30. Or a preset relationship parameter of the illumination state of the background environment of the display screen and the display environment of the niche.

The above process is an adaptive adjustment process based on the display parameters of the cloud data and the illumination state of the background environment. Further, in a preferred solution of the embodiment, the adjusting device may be further configured to adjust the display parameter of the display screen according to the personalization requirement of the user after the adaptive adjustment is completed.

Specifically, on the basis of the display parameter of the display after the adaptive adjustment is completed, the user adjusts the display parameter of the display screen by adjusting the device according to the perception of the background illumination and the display display parameter. After receiving the display parameter adjustment, the information terminal 10 transmits the modified display parameter of the display screen and the illumination state parameter of the background environment of the user's viewing angle range to the cloud 30, and loads the user recorded in the information terminal 10 in the upload data. The information, such as the gender, age, and occupation of the user, is used to facilitate the classification and statistics of the data, and the cloud 30, according to the received data, associates the previously recorded user with the preset correspondence of the display parameters under the illumination state parameter of the background environment. Make changes and generate a correction correspondence.

In a specific calculation method, the cloud computing corrects the degree of deviation and the number of deviations between the correspondence relationship and the preset correspondence relationship, and performs weighting processing on the corrected correspondence relationship and the preset correspondence relationship that reach the first deviation number and is smaller than the first deviation threshold value. Thereby generating a universal preset correspondence of the first range;

The modified correspondence relationship that reaches the second deviation number and is greater than the first deviation threshold and smaller than the second deviation threshold is weighted with the preset correspondence, thereby generating a trait prefix correspondence of the second range.

That is, in the above-mentioned algorithm, 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. A range of universal preset correspondences and trait presets adapted to the second range. Specifically, the method includes: determining, by the cloud, the user attribute corresponding to the modified correspondence; determining a data correction weight coefficient according to the user attribute; performing data analysis processing on the parameter of the modified correspondence according to the data correction weight coefficient, and obtaining a normalized correction correspondence parameter; The preset correspondence between the display parameter of the display screen and the illumination state of the background environment of the user's viewing angle range, and the normalized correction corresponding parameter are used for data analysis to generate a universal preset correspondence corresponding to the first range. And a trait preset relationship adapted to the second range.

The user's personalized parameter adjustment also changes the correspondence of the universal presets in the cloud.

Because the correction of the display parameter correspondence relationship of a certain user in a certain background environment illumination state is equivalent to the statistical data corresponding to the universal preset correspondence relationship of the big data statistics in the background environment illumination state. The pervasive calculation at this time needs to consider the parameters of the preset correspondence relationship from a plurality of information terminals and the parameters of the correction correspondence relationship of the information terminal from the personalized user to perform data analysis, thereby generating a new universal preset. Correspondence relationship and new trait matching preferences adapted to the niche.

Therefore, with the data collection of the user's display parameters adjusted by the adaptive parameters after the adaptive parameter adjustment, the universal preset correspondence will be dynamically adjusted and tend to be a reasonable range that the public can accept.

Similarly, the dynamic adjustment of the trait-preset correspondence for a particular niche will also change correspondingly with the user-customized display data. However, it should be noted that the corresponding relationship with the universal preset is because the trait preset relationship is only for certain specific groups, such as women aged 20-30, children under 16 in Beijing, etc. When the trait matching relationship of such a group is corrected, the modified data sampling range is only for the specific group, so the adjustment of the correspondence relationship with the ubiquitous preset is based on different data bases. Therefore, based on the user's personalized parameter correction, the parameter changes of the correspondence between the universal preset correspondence and the trait preset must be different.

The information terminal provided by the embodiment of the invention can adjust the display parameters such as the brightness and the color temperature of the display screen based on the state parameter of the background environment obtained by sampling the illumination of the background environment, so as to display the brightness, color temperature and other display parameters of the display screen. The lighting state of the background environment of the information terminal is matched, 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. Moreover, the parameter correction can be performed according to the personalized requirements of the user, and the pervasive calculation correction of the preset parameters of the display parameter and the background illumination is performed based on the corrected parameters, so as to make it more in line with the user's usage habits.

A person skilled in the art should further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the invention.

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.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. All modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

An information terminal, comprising a display screen and a communication device, wherein the information terminal further comprises a photosensitive device and a display screen display parameter adjusting unit;

The photosensitive device acquires a state parameter of a background environment of the information terminal, and sends the status parameter to the display screen display parameter adjusting unit;

The display screen display parameter adjustment unit adjusts the display parameter of the display screen according to the state parameter of the background environment based on a preset correspondence relationship between the display parameter of the display screen and the state parameter of the background environment, so that the display parameter of the display screen is adjusted according to the state parameter of the background environment, so that The display parameter of the display screen matches the illumination state of the background environment of the information terminal; wherein the display parameter includes at least brightness and/or color temperature;

The display display parameter adjustment unit includes: an adjustment device for adjusting display parameters of the display screen; after adjusting the display parameter, displaying display parameters of the display screen and illumination of the background environment The preset correspondence of the state changes, and a corrected correspondence is generated.
The information terminal according to claim 1, wherein said photosensitive device is disposed facing said display screen and disposed on said information terminal.
The information terminal according to claim 1, wherein the information terminal is connected to the cloud through a network, and the preset correspondence relationship between the display parameter of the display screen and the illumination state of the background environment is matched. The parameters are transmitted to the cloud for synchronization;

The cloud saves a user habit list corresponding to the user, where the user habit list includes a user ID corresponding to the user, a display parameter of the display screen, an illumination state, and illumination of the background environment of the display parameter and the user perspective range. The preset correspondence in which the states match.
The information terminal according to claim 3, wherein the cloud performs data according to a preset correspondence relationship between the display parameter of the display screen and the illumination state of the background environment and a parameter of the corrected correspondence relationship. The analysis generates a universal preset correspondence corresponding to the first range and a characteristic preset correspondence adapted to the second range.
The information terminal according to claim 4, wherein the data analysis of the cloud is specifically:

And calculating, by the cloud, a degree of deviation and a deviation of the preset correspondence relationship from the preset correspondence relationship, and performing a weighting process on the corrected correspondence relationship that is the first deviation amount and smaller than the first deviation threshold value, and the preset correspondence relationship is weighted a universal preset correspondence relationship of the first range;

A modified correspondence relationship that reaches the second deviation number and is greater than the first deviation threshold and smaller than the second deviation threshold is weighted with the preset correspondence, thereby generating a trait preset correspondence of the second range.
The information terminal according to claim 4, wherein the universal preset correspondence is used by the information terminal used by the ubiquitous user to acquire through the cloud, thereby matching the display parameters and the display of the display screen. The universal preset correspondence relationship of the illumination state of the background environment.
The information terminal according to claim 4, wherein the trait mapping relationship is used by the information terminal used by a user who meets the trait condition to acquire through the cloud, thereby matching the display parameter and the display of the display screen. The characteristic preset correspondence of the illumination state of the background environment.
The information terminal according to claim 1, wherein the adjusting the display parameter of the display screen according to the state parameter of the background environment comprises:

Determining an absolute value of the target brightness according to the state parameter of the background environment and the preset correspondence relationship;

Determining a display brightness percentage of the display screen according to the target brightness absolute value;

Outputting a display display actual brightness according to the display brightness percentage of the display screen; wherein the display display actual brightness and the maximum brightness of the display screen are displayed by the display brightness percentage Pre-calibration.
The information terminal according to claim 1, wherein the information terminal further comprises an image capturing device;

The acquiring image positioning device locates each frame image collected by the camera, and performs fusion splicing processing on the multi-frame image collected by the camera according to the positioning, thereby obtaining a photo analog signal of a background environment of the user's viewing angle range or Photo digital signal.
The information terminal according to claim 9, wherein the photo detecting unit is further configured to perform blind spot analysis on the photo analog signal or the photo digital signal, and perform simulation prediction on the analyzed blind spot region, thereby The digitized photo data is generated in conjunction with the simulated prediction result and the photo analog signal or photo digital signal.