WO2011127689A1

WO2011127689A1 - Mobile terminal and method for adjusting screen visual effect thereof

Info

Publication number: WO2011127689A1
Application number: PCT/CN2010/074254
Authority: WO
Inventors: 王昕�
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-04-12
Filing date: 2010-06-22
Publication date: 2011-10-20
Also published as: CN101815127A; CN101815127B

Abstract

A mobile terminal and a method for adjusting the screen visual effect thereof are provided, wherein the mobile terminal includes: a sensor (10) for acquiring the actual distance between the screen of the mobile terminal and a front object; a judging module (20) for judging whether the actual distance acquired by the sensor is within a predetermined distance range for a user to operate the mobile terminal; and an adjusting module (30) for adjusting the visual effect attribute of the screen according to the judgment of the judging module. Using the solution, the visual effect attribute can be dynamically adjusted, the user operation becomes convenient, and the time can be saved.

Description

The present invention relates to the field of communications, and in particular to a mobile terminal and a screen visual effect adjustment method thereof. BACKGROUND With the rapid development of mobile communication technologies, functions of mobile terminals such as mobile phones are increasingly diversified, and in addition to commonly used communication functions, various functions such as personal information management, multimedia playback, e-books, and games can be provided. At the same time, the screens of mobile terminals have evolved from past monochrome, small size, and low resolution LCD screens to today's true color, large size, high resolution, and LCD screens that support touch control. Although the mobile terminal uses a graphical user interface to make the display better, it is accompanied by a large increase in power consumption (increased screen size and backlighting, resulting in a significant increase in power consumption throughout the system) and visual effects (including Complex operating steps for adjustment of screen brightness, backlight switch, font size, window component size, and background color. The way the user uses the phone in different situations will be different, which will result in different requirements for the visual effect of the screen, such as the requirement to adjust the brightness or font size. However, the inventors have found that in the related art, when the user needs to adjust the visual effect of the mobile phone, the mobile phone needs to be manually operated, which adds trouble to the user and takes more time. For example, when the user does not need to use the mobile phone, the screen needs to be manually turned off; or, after waiting for a certain period of time, the mobile phone can turn off the screen, which adds trouble to the user, takes more time, and causes unnecessary power consumption. At present, a method for adjusting the visual effect of a mobile phone screen has been proposed in which a light sensor is integrated in a mobile phone, and the detection result of the ambient light intensity is set to set the backlight brightness of the mobile phone screen to solve the above problem. However, in some applications, depending on the light intensity of the external environment, the state of use of the mobile phone cannot be correctly reflected, and this method can only adjust the brightness of the screen, and the entire visual effect cannot be adjusted. Therefore, in order to obtain a better visual effect according to the actual application scenario, the user still needs to manually operate the mobile phone, so there is still a problem that the operation is troublesome and time consuming. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a mobile terminal and a screen visual effect adjustment method thereof to solve at least the above problems. In one aspect, a mobile terminal is provided, including: a sensor, configured to acquire an actual distance between a screen of the mobile terminal and a front object; and a determining module, configured to determine whether the actual distance obtained by the sensor is in a preset distance of the user operating the mobile terminal And an adjustment module, configured to adjust a visual effect attribute of the screen according to the judgment of the judging module. In another aspect, a method for adjusting a screen visual effect of a mobile terminal is provided, including: obtaining an actual distance between a screen of the mobile terminal and a front object; determining whether the obtained actual distance is within a distance range of the preset user operating the mobile terminal ; adjust the visual effects of the screen according to the judgment result. According to the present invention, the actual distance between the screen of the mobile terminal and the object in front is measured by setting the sensor, and the visual effect attribute of the screen is adjusted according to whether the actual distance is within the distance interval of the user using the mobile terminal, so that the current mobile terminal can be better judged. The use scenario solves the problem that the related technology still needs to manually operate the mobile terminal, so the operation is troublesome and time consuming, so that the actual distance of the mobile terminal and the object in front can be measured to truly reflect the usage state of the mobile terminal, and the dynamic Adjusting the visual effect attribute conveniently saves the user's operation and saves time. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a schematic diagram of a mobile terminal according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a mobile terminal according to Embodiment 1 of the present invention; FIG. 3 is a preset visual effect policy module according to Embodiment 1 of the present invention; FIG. 4 is a flowchart of a screen visual effect adjustment method of a mobile terminal according to an embodiment of the present invention; and FIG. 5 is a screen visual effect adjustment method of the mobile terminal according to the first embodiment of the present invention. flow chart. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. 1 is a schematic diagram of a mobile terminal in an embodiment of the present invention. As shown in FIG. 1, the mobile terminal includes: a sensor 10, configured to acquire an actual distance between a screen of the mobile terminal and a front object; and a determining module 20, configured to determine whether the actual distance obtained by the sensor 10 is operated by a preset user The adjustment module 30 is configured to adjust the visual effect attribute of the screen according to the judgment of the judging module 20. Wherein, the sensor 10 is a distance sensor, and the current distance sensor is based on receiving infrared rays or ultrasonic waves reflected from the front obstacle to measure the sensor and the obstacles in front of the obstacle, and the test degree is up to the centimeter level, and has been in various fields such as robots and automobiles. It has been widely used. At present, there is a low-power distance sensor with a volume of less than 5mm, which can be integrated into a mobile terminal. This embodiment measures the actual distance between the screen of the mobile terminal and the object in front by setting the sensor, according to whether the actual distance is in the user. Using the distance range of the mobile terminal to adjust the visual effect attribute of the screen (including backlight brightness, font and window component size, etc.), thereby being able to better judge the current use scenario of the mobile terminal, and solving the related art still needs to manually operate the mobile The terminal is so troublesome and time consuming to use. The embodiment can truly reflect the usage state of the mobile terminal by measuring the actual distance between the mobile terminal and the object in front, and dynamically adjust the visual effect attribute to facilitate the operation of the user. , saving time. The mobile terminal can be a mobile phone, a PDA, etc. The sensor 10 can be in the same plane and direction as the main display panel of the mobile terminal. Thus, the actual distance measured by the sensor can always be the screen of the mobile terminal and the object in front. Preferably, in the above mobile terminal, the method further includes: a setting module 40, configured to accept a maximum value/ _max and a minimum value/ _{mm of the} distance range set by the user, and a customary visual effect attribute and a habit of the user operating the mobile terminal. Distance / _∞m , where the value of the usual distance is within the distance interval, the custom visual effect attribute package The level of backlight brightness of conventional screens. _m . In this way, the user can set the maximum distance (ie, the maximum value of the above-mentioned distance interval) and the minimum distance (that is, the minimum value of the above-mentioned macro interval) when the mobile terminal is operated daily according to his own habits, so as to set the above-mentioned macro range, and can also be set. A customary distance when operating the mobile terminal on a daily basis, and a custom screen visual effect attribute, etc., these user-set parameters are saved to the mobile terminal, so that the subsequent mobile terminal adjusts the visual effects of these parameters. Wherein, when the visual effect attribute is the backlight brightness, the effect of reducing the power consumption of the mobile terminal can be achieved. Preferably, the adjustment module 30 includes: a calculation module 301, configured to calculate a first upgrade step distance and a first step-down distance/ _{S w} of the backlight brightness of the screen:

, / _max is the most distance range

Large value, / _mm is the minimum value of the distance interval, / _∞m is the usual distance, „ _m is the adjustable level of the backlight brightness of the screen, _∞η is the level of the backlight brightness of the conventional screen, L ” is taken down integer operator; regulation module 302, when the distance range for the screen backlight brightness level adjustment determination module 20 determines if the actual distance is _Ρ Β:

The level to be adjusted to, the current level of backlight brightness of the screen, is the actual distance. The preferred embodiment provides that when the actual distance measured by the sensor is within a distance range operated by the user (typically 20 cm to 100 cm, which is a wide range, most commonly 30 cm to 50 cm), It can be considered that the user is looking at the display of the mobile terminal, and can calculate the screen suitable for the actual distance according to the actual distance measured above and the parameters set by the above user. The brightness of the backlight is adjusted and adjusted so that the user can see the screen more clearly. In addition, the power consumption of the mobile terminal can be further reduced by adjusting the backlight brightness of the screen according to the actual distance. Preferably, the usual visual effect attribute of the screen further comprises a custom font and a window component size; the calculation module 301 is further configured to calculate a second upgrade step distance f _Sup and a second degraded step distance of the font and window component size of the screen/ for:

, the font for the screen

The number of adjustable levels of the window component size, „ _m is the level of the conventional font and the window component size; the adjustment module 302 is further configured to adjust the font size of the screen and the size of the window component when the determining module determines that the actual distance is within the distance interval. for:

The level to which the component size is to be adjusted, the current level of the screen's font and window component size, is the actual distance. The preferred embodiment provides that when the actual distance measured by the sensor is within a distance range operated by the user (typically 20 cm to 100 cm, which is a wide range, most commonly 30 cm to 50 cm), It can be considered that the user is looking at the display of the mobile terminal, and can calculate the font and window component size of the screen suitable for the actual distance according to the actual distance measured above and the parameters set by the user, and adjust the user to facilitate the user. Can see the screen more clearly. In the above preferred embodiment, when it is determined that the current actual distance is within the preset daily operation distance interval, the visual effect may be dynamically adjusted according to the preset distance and the custom visual effect attribute parameter preset by the user. For example, if the current actual distance is larger than the usual distance, the screen backlight brightness level should be raised, font and The window component size should also be larger; the current actual distance is smaller than the usual distance, the screen backlight brightness level should be reduced, and the font and window component size also need to be reduced. This scheme of dynamically adjusting the screen visual effect according to the actual distance between the mobile terminal and the object in front can bring about a good user experience and eliminate visual fatigue. Among them, the sensor 10 periodically acquires the actual distance. The manner in which the sensor 10 periodically acquires the actual distance may include: when the mobile terminal is in the non-sleep state, the sensor 10 receives the period value set by the user according to the setting module 40 (ie, the setting module 40 is further configured to accept the user. Setting the sensor 10 to obtain the period value of the actual distance between the screen of the mobile terminal and the object in front) to periodically acquire the actual distance; or, in the case that the mobile terminal is in the non-sleep state, the sensor according to the preset default period value The actual distance is obtained periodically. The mobile terminal uses the sensor 10 to obtain the above-mentioned actual distance to adjust the visual effect attribute of the screen, which is generally performed when the mobile terminal is in the non-sleep state, and the user is considered to be operating the mobile terminal. The manner in which the sensor 10 obtains the actual distance is periodic. The period may be set by the user or the default value may be used. For example, the specific value of the period may be ls, 0.1 s, 2 s, or the like. The smaller the value of the period is set, the more sensitive the mobile terminal adjusts the visual effect attribute of the screen according to the actual distance obtained by the sensor, but at the same time, the power consumption is also larger. In actual implementation, an appropriate value can be selected according to actual needs to achieve equilibrium. Preferably, the adjustment module 30 further includes: a closing module 303, configured to turn off the backlight brightness of the screen when the determining module 20 determines that the actual distance is outside the distance interval. Usually, if the user does not operate in the standby state, the mobile terminal is in a sleep state, and the standby time is increased for the power consumption of the cascading, and the screen and the backlight are both turned off. When the user uses the mobile terminal, the mobile terminal is activated by pressing a button or clicking a touch screen to turn on the screen backlight. At this time, the user watches the screen. At this time, the distance between the user and the mobile terminal is generally 20 cm to 100 cm (the interval is wider, the most common is 30 cm to 50 cm). Too far and too close is not suitable for viewing the screen. . Here, the above distance range is referred to as a distance interval for daily operation. A distance outside the range of the distance interval of daily operation can be considered that the user is in an unwatched state. If the sensor 10 determines that the current actual distance is not within the distance interval, then the user is considered not to look at the screen of the mobile terminal. Specifically, if it is less than the minimum value of the distance interval, it may be determined that the user is in a call state or put the mobile terminal into the pocket; if the current actual distance is greater than the maximum value of the distance interval, it may be determined that the user is in the hands-free call state or The mobile terminal is placed on the table. In the above case, both the screen and the backlight can be turned off, that is, the backlight brightness is adjusted to 0, thereby minimizing the power consumption of the mobile terminal. As shown in FIG. 2, in actual implementation, the functions of the determining module 20 and the adjusting module 30 in FIG. 1 may be implemented by the main control module 201, and the function of the setting module 40 in FIG. 1 may be implemented by the mobile terminal software. The visual effect policy module 202 is implemented. The preset visual effect policy module 202 provides an interactive interface for the user to preset a distance interval (ie, / _max and / _mm ), a custom distance _fcom , and related visual attributes (for example, conventional). The level of backlight brightness of the screen. _m and the level of the usual font and window component size. _m ), these parameters can be collectively referred to as visual effect policy setting parameters, and the set parameters are saved to the permanent storage unit of the mobile terminal. Here, the method for setting by the user may be in various forms. To facilitate the setting by the user, as shown in FIG. 3, the following manner may be performed: Step S302, the preset visual effect policy module 202 starts running, and completes its own graphical interface and Initialization of the data structure. The visual effect policy setting parameters previously set by the user are read from the permanent storage unit of the mobile terminal and displayed to the user through the screen 203. When the user wants to reset, the process goes to step S304; in step S304, the user sets the minimum value of the distance interval of the daily operation: prompting the user to place the mobile terminal in his own eyes to see the minimum distance of the screen, when the user uses the button or other After confirming the distance by the operation mode, the distance at this time is obtained by the sensor 10, which is recorded as / _mm ; in step S306, the user sets the maximum value of the distance interval of the daily operation: prompting the user to place the mobile terminal to his own eyes to see the maximum screen size Distance, when the user confirms the distance by using a button or other operation mode, the distance at this time is obtained by the sensor 10, which is denoted as / _max ; Step S308, the user sets the usual value of the distance interval of the daily operation (ie, the above-mentioned conventional distance) : Prompting the user to place the mobile terminal to the operating distance that he or she is most accustomed to use. When the user confirms the distance by using a button or other means, the distance of the time is obtained by the sensor 10, which is denoted as f, and the user is prompted to select the setting. The distance/ _∞m is the visual effect attribute parameter that you are used to. For example: The level of the brightness of the screen backlight used, denoted as B and the size of the font and window components. Step S310, after the user confirms the setting, the main control module 201 receives the above set parameters, and notifies that the display attribute setting parameters have been modified and updated to the permanent storage unit. The visual effects policy module 202 exits the run. In addition, the preset visual effect policy module 202 may further provide a period value T for the sensor 10 to obtain the actual distance between the screen of the mobile terminal and the object in front by providing the interaction interface (for example, providing thousands of interfaces through the interactive interface). The period value is for the user to select) and is saved to the permanent storage unit of the mobile terminal. Thus, the sensor 10 can periodically acquire the actual distance from the front object in accordance with the set period value T. When the main control module 201 is the main module in the mobile terminal software, when the mobile terminal is in the non-sleep state, the timing control sensor 10 performs distance detection, and according to the distance data measured by the sensor 10 and the object in front of the screen (ie, the above actual The visual effect setting parameters of the preset visual effect policy module 202 and the current usage status of the mobile terminal dynamically adjust the visual effect attributes (such as backlight brightness, font and window component size, and background color) of the mobile terminal. For example, when the user takes out the mobile terminal to open the dialing interface and starts to initiate a call, the main control module 201 adjusts the backlight brightness and the font and the window component size of the screen according to the distance of the current user's face from the screen (ie, the distance from the sensor 10). A matching value is convenient for the user to use; when the call is connected, the user places the mobile terminal at the ear to answer the call, and at this time, the main control module 201 can determine that there is no display according to the actual distance returned by the sensor 10 (at this time) It can be judged that the actual distance exceeds the range of the distance interval;), in order to save power, the backlight of the screen and other hardware irrelevant to the call state can be completely turned off. The upgrade step distance and the stepping distance of the screen backlight brightness, and the upgrade step distance of the font and the window component size may be calculated by the main control module 201 according to parameters set by the user through the preset visual effect policy module 202. The stepping distance is degraded, and the calculated data is saved to the permanent storage unit of the mobile terminal. The sensor 10 and the screen 203 belong to the hardware and the underlying driving category, and the main control module 201 and the preset visual effect policy module 202 belong to the software subsystem category of the mobile terminal. 4 is a flowchart of a screen visual effect adjustment method of a mobile terminal according to an embodiment of the present invention, including the following steps: Step S402: Obtain an actual distance between a screen of the mobile terminal and a front object; Step S404, determine to obtain Whether the actual distance is within a 3 macrorange of the preset user operation of the mobile terminal; Step S406, adjusting the visual effect attribute of the screen according to the judgment result. The embodiment adjusts the visual effect attribute of the screen (including backlight brightness, font and window component size, etc. according to whether the actual distance is within the distance interval of the user using the mobile terminal by measuring the actual distance between the screen of the mobile terminal and the object in front. Therefore, the use scenario of the current mobile terminal can be better judged, and the related art still needs to manually operate the mobile terminal, so that the operation is troublesome and time consuming. By using the embodiment, the actual distance between the mobile terminal and the front object can be measured to truly reflect the usage state of the mobile terminal, and the visual effect attribute is dynamically adjusted, which facilitates the operation of the user and saves time. Preferably, in the above method, the method further includes: accepting a maximum value and a minimum value of the distance interval set by the user, and a custom visual effect attribute and a customary distance of the user operating the mobile terminal, wherein the value of the conventional distance is located in the distance interval, Visual effects attributes include the level of backlight brightness of a conventional screen. In this way, the user can set the above parameters according to his own habits, and the manner in which the user performs setting may be the manner as shown in FIG. 3. Preferably, the step S406 includes: calculating a first upgrade step distance of the backlight brightness of the screen and a first stepping distance f _Bdow „

, / _max is the most distance range

Large value, / _mm is the minimum value of the distance interval, / _∞m is the usual distance, „ _m is the adjustable level of the backlight brightness of the screen, _∞η is the level of the backlight brightness of the conventional screen, L ” is taken down The whole operator; when the result of the determination in step S404 is that the actual distance is within the distance interval, the level of the backlight brightness of the screen is adjusted to: , where is the brightness of the backlight of the screen

< / _c The level to be adjusted to, the current level of the backlight brightness of the screen, is the actual distance. The preferred embodiment provides a specific embodiment of the mobile terminal dynamically adjusting the backlight brightness of the screen when the measured actual distance is within a distance range set by the user. Preferably, the custom visual effect attribute set by the user further includes a conventional font and a window component size; and step S406 further includes: calculating a second upgrade step distance f _Suv and a second stepping step distance of the font of the screen and the window component size:

, the font for the screen

The number of adjustable levels of the window component size, „ _m is the level of the custom font and the window component size; when the judgment result in step S404 is that the actual distance is within the distance interval, the font of the screen and the size of the window component size are adjusted to:

The level to which the component size is to be adjusted, the current level of the screen's font and window component size, is the actual distance. The preferred embodiment provides a specific embodiment of the mobile terminal dynamically adjusting the font and window component size of the screen when the measured actual distance is within a distance range set by the user. The actual distance in step S402 is acquired in a periodic acquisition manner according to a predetermined period. The periodically acquiring the method may include: when the mobile terminal is in the non-sleep state, according to the received period value set by the user (ie, in the foregoing method, the method further includes accepting the user setting to acquire the screen and the front of the mobile terminal. The actual distance of the actual distance of the object is periodically obtained; or, in the case that the mobile terminal is in the non-sleep state, the actual distance is periodically acquired according to a preset default period value. The mobile terminal adjusts the visual effect attribute of the screen by acquiring the actual distance as described above, generally when the mobile terminal is in the non-sleep state, and the user is considered to be operating the mobile terminal. The manner of obtaining the actual distance is periodic. The period can be set by the user or the default value is used. For example, the specific value of the period can be ls, 0.1s, 2s, and the like. The smaller the value of the period is set, the more sensitive the mobile terminal is to adjust the visual effect attribute of the screen according to the obtained actual distance, but at the same time, the power consumption is also larger. In actual implementation, an appropriate value can be selected according to actual needs to achieve equilibrium. Preferably, step S406 further includes: turning off the backlight brightness of the screen when the result of the determination in step S404 is that the actual distance is outside the distance interval. At this time, it can be considered that the user does not look at the screen of the mobile terminal, so that the screen and the backlight can be turned off to achieve the effect of maximally saving the power consumption of the mobile terminal. FIG. 5 is a flowchart of a screen visual effect adjustment method of a mobile terminal according to Embodiment 1 of the present invention, which includes the following steps: Step S 502: When a user operates a mobile phone, the mobile phone converts from a low power sleep state. After entering the standby state, the screen backlight is turned on; in step S504, after entering the standby state, the ranging operation is performed at a timing (that is, according to a certain period), and the measured actual distance is recorded as /^. In order to reduce power consumption, the timing ranging interval (ie, the above period) is generally set to 1 second or higher; when the measurement giant distance exceeds the detection range, it is determined that there is no object in front and returns to the corresponding measurement state; specifically, the mobile terminal accepts the user Setting the actual distance between the screen and the object in front/the period value T used, the mobile terminal periodically acquires the actual large distance according to the period value T in the non-sleep state; or, the mobile terminal is In the case of non-sleep state, the actual distance is periodically acquired according to a preset default period value. Step S506, determining the size of the comparison / and / _max , if L is greater than / _max , then proceeds to step S508, otherwise, proceeds to step 4 to gather S510; step S508, from L is greater than / _max or less than / _mm , that is, the current distance exceeds The distance interval used by the user, that the user no longer looks at the screen at this time (for example, placing the mobile terminal on the desk for hands-free answering, greater than / _max , or placing a call or earring in the ear, less than / _mm ), To save power, turn off the screen backlight, then go back to step S504, continue to detect the distance change; step S510, compare with / _mm size, if / less than / _mm , then go back to step S508, otherwise, go to step 4 to gather S512; Step S512, at the moment in the daily operation distance interval, it is calculated that a visual effect attribute of the screen should be set to a level:

Level, f _iup is the visual effect attribute upgrade step distance, f _idown is the visual effect attribute degrading step distance. Step S514, comparing the size of the sum, if the two are not equal, proceeding to step S518, if yes, proceeding to step S516; step S516, detecting whether the user has stopped the operation and the dormant delay period has expired, and if yes, proceeding to step S520 Otherwise, returning to step S504, starting a new round of distance detection; step S518, resetting the screen visual effect attribute (such as screen backlight brightness level, font size level) to be suitable for use at the current distance, and then proceeding to step S516; S520, turn off the screen backlight and other software and hardware modules that need to stop running, enter the low power sleep state. From the above description, it can be seen that the present invention achieves the following technical effects: The sensor is used to detect the actual distance between the mobile phone display and the object in front, and the mobile terminal is dynamically set according to the measured distance, so as to be convenient for the user to use. At the same time save power consumption. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

A mobile terminal, comprising:

a sensor, configured to acquire an actual distance between a screen of the mobile terminal and a front object; and a determining module, configured to determine whether the actual distance obtained by the sensor is within a macro interval of a preset user operation of the mobile terminal; as well as

The adjusting module is configured to adjust the visual effect attribute of the screen according to the judgment of the determining module.

2. The mobile terminal according to claim 1, wherein the sensor has the same orientation as the screen.

The mobile terminal according to claim 1, further comprising:

a setting module, configured to receive, by the user, a maximum value and a minimum value of the distance interval, and a custom visual effect attribute and a customary distance of the user operation of the mobile terminal, where a value of the conventional distance is located in the distance interval Internally, the usual visual effects attributes include the level of backlight brightness of a conventional screen.

The mobile terminal according to claim 3, wherein the adjustment module comprises: a calculation module, wherein the first upgrade step distance and the first down step distance for calculating the backlight brightness of the screen are:

Where / _max is the maximum value of the distance interval, / _mm is the minimum value of the distance interval, / _∞m is the customary distance, „ _m is the adjustable level of the backlight brightness of the screen, _m is The level of backlight brightness of the conventional screen, L ′ is a downward rounding operator; an adjustment module, configured to: when the determining module determines that the actual distance is within the distance interval, the backlight brightness of the screen The level is adjusted to:

Where p _s is the level to which the backlight brightness of the screen is to be adjusted, and is the current level of the backlight brightness of the screen, which is the actual distance. The mobile terminal according to claim 4, wherein the usual visual effect attribute of the screen further comprises a conventional font and a window component size;

The calculation module is further configured to calculate a second upgrade step distance and a second down step distance of the font and window component size of the screen:

Where && is the number of adjustable levels of the font and window component size of the screen, S is the level of the custom font and window component size;

The adjustment module is further configured to: when the determining module determines that the actual distance is within the distance interval, adjust a font level of the screen and a window component size to:

Wherein, the level to which the font of the screen and the size of the window component are to be adjusted, P _Scur is the current level of the font of the screen and the size of the window component, which is the actual distance.

6. The mobile terminal according to claim 1, wherein the sensor periodically acquires the actual distance.

The mobile terminal according to claim 6, wherein the manner in which the sensor periodically obtains the actual large distance comprises:

In a case that the mobile terminal is in a non-sleep state, the sensor periodically acquires the actual distance according to a period value set by the user received by the setting module; or

In the case that the mobile terminal is in a non-sleep state, the sensor periodically acquires the actual distance according to a preset default period value.

The mobile terminal according to claim 1, wherein the adjustment module comprises: a closing module, configured to close the screen when the determining module determines that the actual distance is outside the distance interval.

A method for adjusting a screen visual effect of a mobile terminal, comprising:

Obtaining an actual distance between a screen of the mobile terminal and an object in front;

Determining whether the obtained actual distance is within a large distance interval of the mobile terminal that is preset by the user to operate;

The visual effect attribute of the screen is adjusted according to the judgment result.

10. The method according to claim 9, further comprising:

Accepting, by the user, setting a maximum value and a minimum value of the distance interval, and a custom visual effect attribute and a customary distance of the user operating the mobile terminal, wherein a value of the conventional distance is within the distance interval, and the conventional visual effect The properties include the level of backlight brightness of the conventional screen.

11. The method of claim 10, wherein adjusting the visual effect attribute of the screen according to the judgment result comprises:

Calculating a first upgrade step distance and a first step-down step distance of the backlight brightness of the screen

Where / _max is the maximum value of the distance interval, / _mm is the minimum value of the distance interval, / _∞m is the customary distance, „ _m is the adjustable level of the backlight brightness of the screen, B hidden For the level of the backlight brightness of the conventional screen, L ′ is a downward rounding operator; when the result of the determination is that the actual large distance is within the macro range, the backlight brightness of the screen is The level is adjusted to:

'

Bdown where P _s is the level to which the backlight brightness of the screen is to be adjusted, and is the current level of the backlight brightness of the screen, which is the actual distance.