CN106898332B - Method and system for adjusting screen brightness - Google Patents
Method and system for adjusting screen brightness Download PDFInfo
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- CN106898332B CN106898332B CN201710250304.7A CN201710250304A CN106898332B CN 106898332 B CN106898332 B CN 106898332B CN 201710250304 A CN201710250304 A CN 201710250304A CN 106898332 B CN106898332 B CN 106898332B
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The invention discloses a method and a system for adjusting screen brightness, wherein the method comprises the following steps: when the current environment is detected to be in a dim light state, acquiring the initial screen brightness of the mobile terminal and the current reflected light brightness of an illuminated object; judging whether the current reflected light brightness belongs to a preset brightness interval or not; if not, determining a screen brightness reference value according to the corresponding relation between the reflected light brightness and the screen brightness; and adjusting the screen brightness of the mobile terminal to the screen brightness reference value. According to the invention, when the environment is in a dark light state, the brightness of the reflected light of the irradiated object is obtained, and the screen brightness is adaptively adjusted when the brightness of the reflected light exceeds a preset interval, so that discomfort brought to a user by over-brightness or over-darkness of the screen brightness is avoided.
Description
Technical Field
The invention relates to the technical field of intelligent terminals, in particular to a method and a system for adjusting screen brightness.
Background
With the development of mobile communication technology, mobile terminals such as smart phones and tablet computers are becoming essential entertainment equipment and communication tools in people's lives. At present, when the mobile terminal is used, after a user sets an automatic brightness adjustment function to be started, the mobile terminal can adjust the screen brightness of the mobile terminal according to the light intensity information. However, when the environment is dark, the screen brightness is adjusted only by considering the factor of the ambient light brightness in the conventional screen brightness adjustment scheme, so that the screen brightness is usually at a fixed value, and thus, a user still feels dazzling or insufficient brightness when looking at the display screen of the mobile terminal, and the screen brightness cannot be finely adjusted to the appropriate brightness in the dark environment in the conventional screen brightness adjustment scheme.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for adjusting screen brightness to solve the problem of discomfort to a user caused by too dark or too bright screen brightness in the dark environment.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method of adjusting screen brightness, comprising:
when the current environment is detected to be in a dim light state, acquiring the initial screen brightness of the mobile terminal and the current reflected light brightness of an illuminated object;
judging whether the current reflected light brightness belongs to a preset brightness interval or not;
if not, determining a screen brightness reference value according to the corresponding relation between the reflected light brightness and the screen brightness;
and adjusting the screen brightness of the mobile terminal to the screen brightness reference value.
The method for adjusting the screen brightness further comprises the following steps of after adjusting the screen brightness of the mobile terminal to the screen brightness reference value:
and when the current environment is detected to be in a bright light state, restoring the screen brightness of the mobile terminal to the initial screen brightness.
The method for adjusting the screen brightness, wherein when it is detected that the current environment is in a dark light state, the acquiring of the initial screen brightness of the mobile terminal and the current reflected light brightness of the illuminated object specifically includes:
when the current environment is detected to be in a dim light state, acquiring the initial screen brightness of the mobile terminal;
continuously acquiring a plurality of reflected light brightnesses at intervals of preset time;
and calculating the average value of the plurality of reflected light brightness, and setting the average value as the current reflected light brightness.
The method for adjusting the screen brightness, wherein the step of judging whether the current reflected light brightness belongs to a preset brightness interval specifically comprises the following steps:
comparing the brightness of the current reflected light with a preset second brightness threshold and a preset third brightness threshold respectively, wherein the second brightness threshold is smaller than the third brightness threshold;
and when the brightness of the reflected light is smaller than the second brightness threshold or larger than the third brightness threshold, judging that the brightness of the reflected light does not belong to the brightness interval.
The method for adjusting the screen brightness, wherein when it is detected that the current environment is in a dim light state, before obtaining the initial screen brightness of the mobile terminal, the method further comprises:
the method comprises the steps of obtaining the brightness of the environment where the mobile terminal is located in real time, and comparing the brightness with a preset first brightness threshold value;
and when the brightness is smaller than the first brightness threshold value, judging that the current environment is in a dark light state.
A system for adjusting screen brightness, comprising:
the acquisition module is used for acquiring the initial screen brightness of the mobile terminal and the current reflected light brightness of an illuminated object when the current environment is detected to be in a dim light state;
the judging module is used for judging whether the current reflected light brightness belongs to a preset brightness interval or not;
the determining module is used for determining a screen brightness reference value according to the corresponding relation between the brightness of the reflected light and the screen brightness when the brightness of the screen does not belong to the preset brightness;
and the adjusting module is used for adjusting the screen brightness of the mobile terminal to the screen brightness reference value.
The system for adjusting the screen brightness further comprises:
and the restoring module is used for restoring the screen brightness of the mobile terminal to the initial screen brightness when the current environment is detected to be in a bright state.
The system for adjusting the screen brightness comprises an acquisition module, a display module and a display module, wherein the acquisition module specifically comprises:
the first obtaining unit is used for obtaining the initial screen brightness of the mobile terminal when the current environment is detected to be in a dim light state;
the second acquisition unit is used for continuously acquiring the brightness of a plurality of reflected lights at intervals of preset time;
and the calculating unit is used for calculating the average value of the plurality of reflected light brightness and setting the average value as the current reflected light brightness.
The system for adjusting the screen brightness comprises a judging module and a control module, wherein the judging module specifically comprises:
the comparison unit is used for comparing the brightness of the current reflected light with a preset second brightness threshold and a preset third brightness threshold respectively, wherein the second brightness threshold is smaller than the third brightness threshold;
and the first judging unit is used for judging that the brightness of the reflected light does not belong to the brightness interval when the brightness of the reflected light is smaller than the second brightness threshold or larger than the third brightness threshold.
The system for adjusting the screen brightness further comprises:
the comparison module is used for acquiring the brightness of the environment where the mobile terminal is located in real time and comparing the brightness with a preset first brightness threshold value;
and the second judging unit is used for judging that the current environment is in a dark light state when the brightness is smaller than the first brightness threshold value.
Has the advantages that: compared with the prior art, the invention provides a method and a system for adjusting screen brightness, wherein the method comprises the following steps: when the current environment is detected to be in a dim light state, acquiring the initial screen brightness of the mobile terminal and the current reflected light brightness of an illuminated object; judging whether the current reflected light brightness belongs to a preset brightness interval or not; if not, determining a screen brightness reference value according to the corresponding relation between the reflected light brightness and the screen brightness; and adjusting the screen brightness of the mobile terminal to the screen brightness reference value. According to the invention, when the environment is in a dark light state, the brightness of the reflected light of the irradiated object is obtained, and the screen brightness is adaptively adjusted when the brightness of the reflected light exceeds a preset interval, so that discomfort brought to a user by over-brightness or over-darkness of the screen brightness is avoided.
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Fig. 1 is a flowchart of a preferred implementation of the method for adjusting screen brightness according to the present invention.
Fig. 2 is a schematic structural diagram of a system for adjusting screen brightness according to the present invention.
Detailed Description
The present invention provides a method and a system for adjusting screen brightness, and in order to make the purpose, technical scheme and effect of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, suffixes such as "module", "part", or "unit" used to indicate elements are used only for facilitating the description of the present invention, and have no specific meaning in themselves. Thus, modules, components, or units may be used mixedly.
The terminal device may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a navigation device, and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.
The invention will be further explained by the description of the embodiments with reference to the drawings.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for adjusting screen brightness according to a preferred embodiment of the present invention. The method comprises the following steps:
s100, when the current environment is detected to be in a dark light state, the initial screen brightness of the mobile terminal and the current reflected light brightness of the irradiated object are obtained.
Specifically, the dim light state refers to a state when the brightness of the current environment is less than a preset first brightness threshold. Wherein the first brightness threshold is a preset brightness threshold, such as 20Lux and 30 Lux. The system can be set by default or set by the user according to the environmental characteristics of the user. Therefore, before the step S100, a process of determining a current ambient light state is further included, which specifically includes:
s01, acquiring the brightness of the environment where the mobile terminal is located in real time, and comparing the brightness with a preset first brightness threshold value;
and S02, when the brightness is smaller than the first brightness threshold, judging that the current environment is in a dark light state.
Specifically, in step S01, the brightness of the current environment may be obtained in real time by an ambient light detection sensor disposed in the mobile terminal, and the brightness is compared with the first brightness threshold. When the brightness is smaller than the first brightness threshold, it is determined that the current environment is in a dim light state, and step S100 is performed. And when the brightness is greater than or equal to the first brightness threshold, judging that the current environment is in a bright light state, not processing, and continuously acquiring the brightness of the environment in real time.
In the present embodiment, the initial screen brightness refers to a screen brightness value when it is detected that the current environment is in a dim light state. For example, when the current ambient brightness is detected to be in the dark state, the screen brightness of the mobile terminal is 100Lux, and then the initial screen brightness is 100 Lux. In practical application, the brightness value of the current screen can be read and stored through an interface of a driving bottom layer.
The irradiated object refers to an object irradiated by light of a screen of the mobile terminal, for example, a human face or clothes. The brightness of the currently reflected light refers to the brightness of the illuminated object reflecting the screen backlight. In practical application, since a screen of the mobile terminal faces the user when the user views the mobile terminal, a sensor for collecting the reflected light may be disposed at a side of the screen of the mobile terminal, and the reflected light of the external illuminated object is incident into the mobile terminal through the sensor. The sensor converts the absorbed light into current and generates brightness information of the irradiated object according to the amount of the current. Because the reflectivity of the light is different according to the surface properties of various objects, and the brightness of the reflected light is influenced along with the change of the picture displayed on the screen of the mobile terminal, a plurality of reflected light brightness values can be continuously acquired to improve the accuracy of the acquisition.
For example, when it is detected that the current environment is in a dark light state, the acquiring the initial screen brightness of the mobile terminal and the current reflected light brightness of the illuminated object may specifically include:
s101, when detecting that the current environment is in a dim light state, acquiring initial screen brightness of the mobile terminal;
s102, continuously acquiring the brightness of a plurality of reflected lights at intervals of preset time;
s103, calculating an average value of the plurality of reflected light brightness, and setting the average value as the current reflected light brightness.
Specifically, in the step S102, the preset time is a preset interval time, which may be 1S, 2S, 3S, and the like. Preferably, the interval time is 1S. Of course, the interval time can also be set according to the environment where the user is located. The number of ambient light values may be 3, 4, 5, … … preferred, the number of ambient light values taking 10. The step of continuously acquiring the brightness of the plurality of reflected lights at preset intervals refers to continuously acquiring a plurality of ambient light values at preset intervals until the number of the ambient light values reaches a preset number. For example, 10 ambient light values are acquired at an interval of 1S, which means that 10 reflected light intensities are continuously acquired every 1S. In practical application, 10 reflected light intensities can be continuously read each time the 1S timer is triggered by starting a cycle timer with an interval of 1S.
In step S103, an average value of the obtained brightness of the plurality of reflected lights is obtained, where the average value is the current brightness of the reflected lights. Therefore, under the condition that the brightness of the reflected light is continuously fluctuated, the accuracy of the brightness of the reflected light can be improved and the influence caused by the fluctuation of the brightness of the reflected light can be reduced by regularly acquiring a plurality of real-time environment light values and taking an average value.
S200, judging whether the current reflected light brightness belongs to a preset brightness interval.
Specifically, the brightness interval is a preset interval, which may be set by default in the system or set by the user. The luminance interval includes two luminance boundary values, which are a second luminance threshold value and a third luminance threshold value, respectively. And determining whether the current reflected light brightness exceeds the brightness interval by comparing the current reflected light brightness with the two brightness boundary values. Therefore, the determining whether the current reflected light brightness belongs to the preset brightness interval may specifically include:
s201, comparing the current reflected light brightness with a preset second brightness threshold and a preset third brightness threshold respectively, wherein the second brightness threshold is smaller than the third brightness threshold;
s202, when the brightness of the reflected light is smaller than the second brightness threshold or larger than the third brightness threshold, judging that the brightness of the reflected light does not belong to the brightness interval.
Specifically, the second luminance threshold and the third luminance threshold together constitute the luminance section. Preferably, the second luminance threshold is 15Lux, the third luminance threshold is 100Lux, and then the luminance interval is [15Lux,100Lux ]. And comparing the current reflected light brightness with a second brightness threshold value and a third brightness threshold value respectively. And when the brightness of the reflected light is smaller than the second brightness threshold or larger than the third brightness threshold, judging that the reflected light does not belong to the brightness interval, and indicating that the current reflected brightness is too dark/too bright. When the brightness of the current reflected light is smaller than the second brightness threshold, it is indicated that the brightness of the current reflected light is too dark, that is, the brightness of light emitted by a screen of the mobile terminal is too dark; when the current reflected light brightness is greater than the second brightness threshold, the current reflected light brightness is over-bright, that is, the light brightness emitted by the screen of the mobile terminal is over-bright.
And when the brightness of the current reflected light is greater than the second brightness threshold and less than the third brightness threshold, judging that the current reflected light belongs to the brightness interval, and indicating that the brightness of the current reflected light is in a proper range, namely the brightness of the screen of the mobile terminal is proper without adjusting the brightness.
S300, when the brightness of the screen does not belong to the preset brightness range, determining a screen brightness reference value according to the corresponding relation between the brightness of the reflected light and the screen brightness;
specifically, when the current reflection brightness does not belong to the brightness interval, it is indicated that the brightness of the current reflection brightness is too dark/too bright, that is, the brightness of the light emitted by the screen of the mobile terminal is too dark/too bright. It is necessary to adjust the screen brightness according to the reflected light brightness. The corresponding relation between the brightness of the reflected light and the brightness of the screen is preset. In this embodiment, the correspondence relationship is: when the brightness of the reflected light is smaller than the second brightness threshold, improving the brightness of the screen of the mobile terminal by a preset first percentage; and when the brightness of the reflected light is greater than the third brightness threshold value, reducing the screen brightness of the mobile terminal by a preset second percentage. The first and second percentages are preset, e.g., 10%, 5%. It can be set by default or by the user. For example, when the brightness of the reflected light is 5Lux and is less than the second brightness threshold value of 10Lux, which indicates that the screen brightness is too dark, the screen brightness is increased by a preset percentage of 15% at this time, so that the screen brightness becomes bright, and the method is more suitable for a user to browse the screen. The screen brightness reference value is a value after the screen brightness is increased/decreased.
Of course, in practical application, the corresponding relationship may also be set as: and when the brightness of the reflected light does not belong to the brightness interval, adjusting the mobile terminal to a preset fourth brightness threshold value. Since 50Lux is a luminance value that is more suitable for human reading and browsing, the fourth luminance threshold value can be set to 50 Lux. It should be noted that the above-mentioned setting scheme is only used for illustrating the content of the present invention, and is not limited thereto, and the corresponding relationship may be set according to actual situations.
S400, adjusting the screen brightness of the mobile terminal to the screen brightness reference value.
Specifically, the screen brightness reference value is obtained, and the screen brightness is adjusted to the screen brightness reference value. Therefore, whether the screen of the mobile terminal is in an over-bright/over-dark state or not is judged by obtaining the brightness of the light reflected by the irradiated object, the brightness of the screen is improved when the screen is over-bright, and the brightness of the screen is reduced when the screen is over-dark, so that the brightness of the screen of the mobile terminal is always kept at the brightness suitable for human eyes under the dark light condition, and the stimulation and damage to the eyes of a user are reduced.
In this embodiment, after the step S400, the method further includes:
s500, when the current environment is detected to be in a bright state, restoring the screen brightness of the mobile terminal to the initial screen brightness.
Specifically, when the current environment is detected to be in a bright state, that is, the brightness of the current environment is greater than the first brightness threshold, the screen brightness of the mobile terminal is restored to the initial screen brightness, so that the screen brightness in the normal use state of the user can be quickly restored, and the normal use of the user is facilitated.
The present invention also provides a system for adjusting screen brightness, as shown in fig. 2, which includes:
an obtaining module 100, configured to obtain an initial screen brightness of the mobile terminal and a current reflected light brightness of an illuminated object when it is detected that a current environment is in a dim light state;
the judging module 200 is configured to judge whether the current reflected light brightness belongs to a preset brightness interval;
a determining module 300, configured to determine, when the detected brightness does not belong to the predetermined threshold, a screen brightness reference value according to a correspondence between the reflected brightness and the screen brightness;
the adjusting module 400 is configured to adjust the screen brightness of the mobile terminal to the screen brightness reference value.
The system for adjusting the screen brightness further comprises:
and the restoring module is used for restoring the screen brightness of the mobile terminal to the initial screen brightness when the current environment is detected to be in a bright state.
The system for adjusting the screen brightness, wherein the obtaining module 100 specifically includes:
the first obtaining unit is used for obtaining the initial screen brightness of the mobile terminal when the current environment is detected to be in a dim light state;
the second acquisition unit is used for continuously acquiring the brightness of a plurality of reflected lights at intervals of preset time;
and the calculating unit is used for calculating the average value of the plurality of reflected light brightness and setting the average value as the current reflected light brightness.
The system for adjusting the screen brightness, wherein the determining module 200 specifically includes:
the comparison unit is used for comparing the brightness of the current reflected light with a preset second brightness threshold and a preset third brightness threshold respectively, wherein the second brightness threshold is smaller than the third brightness threshold;
and the first judging unit is used for judging that the brightness of the reflected light does not belong to the brightness interval when the brightness of the reflected light is smaller than the second brightness threshold or larger than the third brightness threshold.
The system for adjusting the screen brightness further comprises:
the comparison module is used for acquiring the brightness of the environment where the mobile terminal is located in real time and comparing the brightness with a preset first brightness threshold value;
and the second judging unit is used for judging that the current environment is in a dark light state when the brightness is smaller than the first brightness threshold value.
In the embodiments provided by the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A method for adjusting screen brightness, comprising:
when the current environment is detected to be in a dim light state, acquiring the initial screen brightness of the mobile terminal and the current reflected light brightness of an illuminated object; wherein the initial screen brightness refers to a screen brightness value when the current environment is detected to be in a dim light state;
judging whether the current reflected light brightness belongs to a preset brightness interval or not;
if not, determining a screen brightness reference value according to the corresponding relation between the reflected light brightness and the screen brightness;
adjusting the screen brightness of the mobile terminal to the screen brightness reference value;
when the current environment is detected to be in the dark light state, the method further comprises the following steps before the initial screen brightness of the mobile terminal is acquired:
the method comprises the steps of obtaining the brightness of the environment where the mobile terminal is located in real time, and comparing the brightness with a preset first brightness threshold value;
when the brightness is smaller than the first brightness threshold value, judging that the current environment is in a dark light state;
the step of judging whether the current reflected light brightness belongs to a preset brightness interval specifically comprises:
comparing the brightness of the current reflected light with a preset second brightness threshold and a preset third brightness threshold respectively, wherein the second brightness threshold is smaller than the third brightness threshold;
when the brightness of the reflected light is smaller than the second brightness threshold or larger than the third brightness threshold, judging that the brightness of the reflected light does not belong to the brightness interval;
wherein, the corresponding relation is as follows: when the brightness of the reflected light is smaller than the second brightness threshold, improving the brightness of the screen of the mobile terminal by a preset first percentage; when the brightness of the reflected light is greater than the third brightness threshold value, reducing the screen brightness of the mobile terminal by a preset second percentage;
when it is detected that the current environment is in a dark light state, the acquiring of the initial screen brightness of the mobile terminal and the current reflected light brightness of the illuminated object specifically includes:
when the current environment is detected to be in a dim light state, acquiring the initial screen brightness of the mobile terminal;
continuously acquiring a plurality of reflected light brightnesses at intervals of preset time;
calculating the average value of the plurality of reflected light brightness, and setting the average value as the current reflected light brightness;
the step of acquiring the brightness of the plurality of reflected lights at intervals of preset time refers to continuously acquiring a plurality of ambient light values at intervals of preset time until the number of the ambient light values reaches a preset number.
2. The method for adjusting screen brightness according to claim 1, wherein after adjusting the screen brightness of the mobile terminal to the screen brightness reference value, the method further comprises:
and when the current environment is detected to be in a bright light state, restoring the screen brightness of the mobile terminal to the initial screen brightness.
3. A system for adjusting the brightness of a screen, comprising:
the acquisition module is used for acquiring the initial screen brightness of the mobile terminal and the current reflected light brightness of an illuminated object when the current environment is detected to be in a dim light state; wherein the initial screen brightness refers to a screen brightness value when the current environment is detected to be in a dim light state;
the judging module is used for judging whether the current reflected light brightness belongs to a preset brightness interval or not;
the determining module is used for determining a screen brightness reference value according to the corresponding relation between the brightness of the reflected light and the screen brightness when the brightness of the screen does not belong to the preset brightness;
the adjusting module is used for adjusting the screen brightness of the mobile terminal to the screen brightness reference value;
it still includes:
the comparison module is used for acquiring the brightness of the environment where the mobile terminal is located in real time and comparing the brightness with a preset first brightness threshold value;
the second judging unit is used for judging that the current environment is in a dark light state when the brightness is smaller than the first brightness threshold value;
the judging module specifically comprises:
the comparison unit is used for comparing the brightness of the current reflected light with a preset second brightness threshold and a preset third brightness threshold respectively, wherein the second brightness threshold is smaller than the third brightness threshold;
the first judging unit is used for judging that the brightness of the reflected light does not belong to the brightness interval when the brightness of the reflected light is smaller than the second brightness threshold or larger than the third brightness threshold;
wherein, the corresponding relation is as follows: when the brightness of the reflected light is smaller than the second brightness threshold, improving the brightness of the screen of the mobile terminal by a preset first percentage; when the brightness of the reflected light is greater than the third brightness threshold value, reducing the screen brightness of the mobile terminal by a preset second percentage;
the acquisition module specifically includes:
the first obtaining unit is used for obtaining the initial screen brightness of the mobile terminal when the current environment is detected to be in a dim light state;
the second acquisition unit is used for continuously acquiring the brightness of a plurality of reflected lights at intervals of preset time;
the calculating unit is used for calculating the average value of the brightness of the plurality of reflected lights and setting the average value as the current brightness of the reflected lights;
the step of acquiring the brightness of the plurality of reflected lights at intervals of preset time refers to continuously acquiring a plurality of ambient light values at intervals of preset time until the number of the ambient light values reaches a preset number.
4. The system for adjusting screen brightness according to claim 3, further comprising:
and the restoring module is used for restoring the screen brightness of the mobile terminal to the initial screen brightness when the current environment is detected to be in a bright state.
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| CN108847143A (en) * | 2018-07-09 | 2018-11-20 | 安徽触威电子科技有限公司 | Outdoor large LED display board system and its display control method |
| CN110675838B (en) * | 2019-09-27 | 2022-03-25 | Tcl移动通信科技（宁波）有限公司 | Brightness adjusting method and device, computer readable storage medium and terminal |
| CN112562587A (en) * | 2020-12-11 | 2021-03-26 | 昆山国显光电有限公司 | Display panel brightness compensation method and device and display panel |
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