CN112017598A - Backlight brightness adjusting method and device - Google Patents
Backlight brightness adjusting method and device Download PDFInfo
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- CN112017598A CN112017598A CN201910462319.9A CN201910462319A CN112017598A CN 112017598 A CN112017598 A CN 112017598A CN 201910462319 A CN201910462319 A CN 201910462319A CN 112017598 A CN112017598 A CN 112017598A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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 disclosure relates to a backlight brightness adjusting method and device. The method and the device for adjusting the backlight brightness solve the problem that the user experience is influenced because the backlight brightness adjusting result is not matched with the actual environment. The method comprises the following steps: continuously collecting ambient brightness data; when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted; and adjusting the backlight brightness according to the current ambient brightness. The technical scheme provided by the invention is suitable for equipment with a display screen, and realizes accurate screen backlight adjustment.
Description
Technical Field
The present disclosure relates to an intelligent terminal technology, and in particular, to a method and an apparatus for adjusting backlight brightness of a terminal.
Background
The mobile phone generally has a function of automatically adjusting the backlight of the screen, and can detect the brightness of the surrounding environment through an ambient light sensor (light sensor), and automatically adjust the backlight of the mobile phone screen along with the change of the ambient brightness to achieve a suitable brightness.
To avoid the flickering, the luminance value detected by the light sensor is not directly used, but a plurality of detection results within a period of time are weighted by time to obtain a reference environment luminance value, and then the corresponding screen backlight value is calculated based on the reference environment luminance value.
If the waiting time in a bright environment is long and then the environment suddenly enters a much darker environment, the calculated reference environment illumination value is higher than the currently measured environment illumination value; similarly, if the environment is in a darker environment for a longer time and then suddenly enters a much brighter environment, the calculated reference ambient illuminance value will be lower than the currently measured ambient illuminance. Due to the deviation between the reference environment illuminance value and the actually measured environment brightness, the backlight brightness adjustment result is not matched with the actual environment, and the user experience is greatly influenced.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a backlight brightness adjusting method and apparatus.
According to a first aspect of an embodiment of the present disclosure, a backlight brightness adjustment method includes:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
Preferably, the step of continuously acquiring the ambient brightness data comprises:
periodically acquiring an environment illumination value according to a preset sampling interval;
and storing the N recently acquired environment illumination values and the corresponding timestamp information into an environment illumination array, wherein N is an integer greater than 1.
Preferably, the backlight brightness adjustment condition at least includes:
the reference ambient brightness value calculated according to the following expression reaches a preset ambient brightness change threshold:
mAmbientLux＝∑(lux[i]*weight[i])
and the mAmbientLux is the reference environment brightness value, lux [ i ] is the ith environment illumination value in the environment brightness array, and weight [ i ] is the weight value corresponding to the ith environment illumination value in the environment brightness array.
Preferably, in the ambient brightness array, the weight value corresponding to the ambient brightness value that is later in time of collection indicated by the timestamp information is larger.
Preferably, before the step of determining that the backlight brightness needs to be adjusted when the continuously collected ambient brightness data meets the backlight brightness adjustment condition, the method further includes:
the reference ambient brightness value is calculated once each new ambient illuminance value is acquired.
Preferably, the step of adjusting the backlight brightness according to the current ambient brightness includes:
determining target backlight brightness according to the current environment brightness acquired in real time or taking the last environment illumination value in the environment brightness array as the current environment brightness;
adjusting the backlight brightness to the target backlight brightness.
According to a second aspect of the present invention, there is provided a backlight luminance adjusting apparatus comprising:
the brightness acquisition module is used for continuously acquiring the ambient brightness data;
the backlight adjustment triggering module is used for judging that the backlight brightness needs to be adjusted when the continuously acquired environment brightness data accords with the backlight brightness adjustment condition;
and the backlight adjusting module is used for adjusting the backlight brightness according to the current environment brightness.
Preferably, the backlight adjusting module includes:
the target brightness determining submodule is used for determining target backlight brightness according to the current environment brightness acquired in real time or the last environment illumination value in the environment brightness array;
and the adjustment execution sub-module is used for adjusting the backlight brightness to the target backlight brightness.
Preferably, the apparatus further comprises a reference value calculation module;
the reference value calculating module is configured to calculate the reference environment brightness value once according to the following expression every time a new environment illuminance value is acquired:
mAmbientLux＝∑(lux[i]*weight[i])
wherein, mAmbientLux is the reference environment brightness value, lux [ i ] is the ith environment illumination value in the environment brightness array, and weight [ i ] is the weight value corresponding to the ith environment illumination value in the environment brightness array;
the backlight adjustment triggering module is specifically configured to determine that the backlight brightness needs to be adjusted when the reference environment brightness value reaches a preset environment brightness change threshold.
According to a third aspect of the present invention, there is provided a non-transitory computer readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform a backlight brightness adjustment method, the method comprising:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
According to a fourth aspect of the present invention, there is provided a computer apparatus comprising:
a processor;
a memory for storing processor line instructions;
wherein the processor is configured to:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the change of the ambient brightness is judged through the continuously acquired ambient brightness data, the change trend of the ambient brightness can be accurately judged under the condition of ambient brightness fluctuation, and the backlight brightness needs to be adjusted in time; when backlight brightness is adjusted, the current actual environment brightness is referred to, and the adjustment result is ensured to be matched with the actual environment. Accurate screen backlight adjustment is realized, the problem that the backlight brightness adjustment result is not matched with the actual environment is solved, and user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a backlight brightness adjustment method according to an exemplary embodiment.
Fig. 2 is a specific flowchart of step 101 in fig. 1.
Fig. 3 is a specific flowchart of step 104 in fig. 1.
Fig. 4 is a block diagram illustrating a backlight luminance adjusting apparatus according to an exemplary embodiment.
Fig. 5 is a block diagram of an exemplary rescued backlight adjusting module 403 in fig. 4.
Fig. 6 is a block diagram illustrating still another backlight luminance adjusting apparatus according to an exemplary embodiment.
Fig. 7 is a block diagram illustrating an apparatus (a general structure of a mobile terminal) according to an exemplary embodiment.
Fig. 8 is a block diagram illustrating an apparatus (general structure of a server) according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Mobile phones generally have a function of automatically adjusting the backlight of a screen. If the waiting time is longer in a brighter environment and then the environment suddenly enters a much darker environment, the calculated reference environment illumination value is higher than the currently measured environment illumination value; similarly, if the environment is in a darker environment for a longer time and then suddenly enters a much brighter environment, the calculated reference ambient illuminance value will be lower than the currently measured ambient illuminance. Due to the deviation between the calculated reference environment illumination value of the mobile phone and the actually measured environment brightness, the backlight brightness adjustment result is not matched with the actual environment, and the user experience is greatly influenced.
In order to solve the above problem, embodiments of the present invention provide a backlight brightness adjustment method and apparatus. By reasonably determining the condition for starting the backlight brightness and the target backlight brightness during adjustment, the problem that the user experience is influenced due to the fact that the backlight adjustment result is not matched with the actual environment is solved.
An embodiment of the present invention provides a backlight brightness adjusting method, which is applicable to an electronic device having a display screen. The process of using the method to complete backlight adjustment is shown in fig. 1, and includes:
As shown in fig. 2, the steps include:
Specifically, the ambient illuminance value is periodically acquired by an ambient Light Sensor (Light Sensor).
The ambient brightness array comprises N elements, wherein N is an integer greater than 1, and each element corresponds to an ambient brightness value. The collected ambient illuminance values are generally sorted from early to late according to the collection time indicated by the timestamp information, that is, the ambient illuminance value closer to the current time and closer to the current time is the later the collection time is, the later the ambient illuminance value is located in the ambient brightness data.
And under the condition that the environment brightness array is full, adding the newly acquired environment illumination value serving as the last element in the environment brightness array into the array, and removing the environment illumination value acquired earliest in the array. This ensures that the N ambient light values stored in the ambient light array are always the latest.
Each environment illumination value is also correspondingly provided with a weight value, and in the environment brightness array, the weight value corresponding to the environment illumination value with the later acquisition time indicated by the timestamp information is larger. That is, the closer the acquisition time is to the reference value of the ambient illuminance value at the current time, the more accurate the response to the ambient brightness change.
And 102, calculating a reference environment brightness value.
In this step, the reference environment luminance value is calculated according to the following expression:
mAmbientLux＝∑(lux[i]*weight[i])
and the mAmbientLux is the reference environment brightness value, lux [ i ] is the ith environment illumination value in the environment brightness array, and weight [ i ] is the weight value corresponding to the ith environment illumination value in the environment brightness array.
The weight values are distributed in the array according to the positions of the elements (namely the sorting positions of the elements in the array), and the configuration of the weight values can be flexibly adjusted in the implementation process and can also be relatively fixed.
The weight value of each element may be the same, i.e. each element contributes the same to the finally calculated reference ambient brightness value. The weight value configuration of each element may also be different.
Preferably, according to the element sorting, the weighted value of the element at the later position is larger (that is, the weighted value corresponding to the environmental illumination value at the closer acquisition time to the current time is larger). That is, the contribution of the current environment to the reference environment luminance value is the largest, so that the calculated reference environment luminance value is most affected by the current environment luminance value, and is closest to the actual situation, which is helpful for improving the accuracy of judging whether to perform backlight luminance adjustment. Under the condition of poor and varying environment brightness, although a plurality of environment illumination values collected adjacently have larger difference in numerical value, because the environment illumination values respectively have similar weights, the influence of environment brightness fluctuation after the environment illumination values are superposed according to the weights is basically offset, and the accuracy of the judgment result is further ensured.
Preferably, the reference environment brightness value is calculated once every time a new environment illumination value is acquired, so that the real-time performance of backlight adjustment is ensured.
The reference environment brightness value is used as the basis for judging whether to adjust the backlight brightness, so that the problem of backlight flickering caused by fluctuation of the environment brightness in a short time is avoided.
And 103, judging that the backlight brightness needs to be adjusted when the continuously acquired environment brightness data meet the backlight brightness adjustment condition.
In the embodiment of the present invention, one or more backlight brightness adjustment conditions may be preset. The backlight brightness adjustment condition is a condition that triggers a backlight brightness adjustment operation, and for example, the "reference environment brightness value reaches a preset environment brightness change threshold" is taken as the backlight brightness adjustment condition.
The ambient brightness change threshold, which includes a dimming threshold and a dimming threshold, is a criterion for determining the backlight adjustment direction and for initiating the backlight brightness adjustment. According to the practical application environment, the change range of the environmental illumination value is divided into a plurality of continuous sections, and each section is provided with a corresponding brightening threshold value and a corresponding dimming threshold value.
And step 104, adjusting the backlight brightness according to the current environment brightness.
As shown in fig. 3, the present step includes:
In this step, the target backlight brightness most matched with the actual environment condition can be determined according to the current environment brightness, and the problem that the adjustment result is too bright or too dark is not caused. In determining the target backlight luminance, specifically, a luminance value is determined.
And when the backlight brightness is adjusted, setting the value of the configuration parameter of the background related to the backlight brightness as the brightness value indicated by the target backlight brightness.
An embodiment of the present invention further provides a backlight brightness adjusting apparatus, the structure of which is shown in fig. 4, including:
a brightness acquisition module 401, configured to continuously acquire ambient brightness data;
a backlight adjustment triggering module 402, configured to determine that backlight brightness needs to be adjusted when the continuously acquired ambient brightness data meets a backlight brightness adjustment condition;
the backlight adjusting module 403 is configured to adjust the backlight brightness according to the current ambient brightness.
Preferably, the structure of the backlight adjusting module 403 is as shown in fig. 5, and includes:
the target brightness determination submodule 4031 is configured to determine target backlight brightness according to the current environment brightness acquired in real time or the last environment illuminance value in the environment brightness array;
an adjusting execution sub-module 4032, configured to adjust the backlight brightness to the target backlight brightness.
Preferably, the apparatus is shown in fig. 6, and further comprises a reference value calculation module 404;
the reference value calculating module 404 is configured to calculate the reference environment brightness value once according to the following expression every time a new environment illumination value is acquired:
mAmbientLux＝∑(lux[i]*weight[i])
wherein, mAmbientLux is the reference environment brightness value, lux [ i ] is the ith environment illumination value in the environment brightness array, and weight [ i ] is the weight value corresponding to the ith environment illumination value in the environment brightness array;
the backlight adjustment triggering module 402 is specifically configured to determine that the backlight brightness needs to be adjusted when the reference ambient brightness value reaches a preset ambient brightness change threshold.
The backlight brightness adjusting apparatus shown in fig. 4 to 6 may be integrated into a device having a display screen, and the device may implement corresponding functions.
An embodiment of the present invention provides a non-transitory computer-readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform a backlight brightness adjustment method, the method comprising:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
An embodiment of the present invention further provides a computer apparatus, including:
a processor;
a memory for storing processor line instructions;
wherein the processor is configured to:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
The embodiment of the invention provides a backlight brightness adjusting method and device, which are used for continuously acquiring environment brightness data, judging that the backlight brightness needs to be adjusted when the continuously acquired environment brightness data meet backlight brightness adjusting conditions, and adjusting the backlight brightness according to the current environment brightness. The change of the ambient brightness is judged through the continuously acquired ambient brightness data, the change trend of the ambient brightness can be accurately judged under the condition of ambient brightness fluctuation, and the backlight brightness needs to be adjusted in time; when backlight brightness is adjusted, the current actual environment brightness is referred to, and the adjustment result is ensured to be matched with the actual environment. Accurate screen backlight adjustment is realized, the problem that the backlight brightness adjustment result is not matched with the actual environment is solved, and user experience is improved.
An embodiment of the present invention further provides an apparatus for backlight brightness adjustment. Fig. 7 is a block diagram of the apparatus 700 for backlight brightness adjustment. For example, the apparatus 700 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 6, the apparatus 700 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and a communication component 716.
The processing component 702 generally controls overall operation of the device 700, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 702 may include one or more processors 720 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 702 may include one or more modules that facilitate interaction between the processing component 702 and other components. For example, the processing component 702 may include a multimedia module to facilitate interaction between the multimedia component 708 and the processing component 702.
The memory 704 is configured to store various types of data to support operation at the device 700. Examples of such data include instructions for any application or method operating on device 700, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 704 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power component 706 provides power to the various components of the device 700. The power components 706 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the apparatus 700.
The multimedia component 708 includes a screen that provides an output interface between the device 700 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 708 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 700 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 710 is configured to output and/or input audio signals. For example, audio component 710 includes a Microphone (MIC) configured to receive external audio signals when apparatus 700 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 704 or transmitted via the communication component 716. In some embodiments, audio component 710 also includes a speaker for outputting audio signals.
The I/O interface 712 provides an interface between the processing component 702 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 714 includes one or more sensors for providing status assessment of various aspects of the apparatus 700. For example, sensor assembly 714 may detect an open/closed state of device 700, the relative positioning of components, such as a display and keypad of apparatus 700, sensor assembly 714 may also detect a change in position of apparatus 700 or a component of apparatus 700, the presence or absence of user contact with apparatus 700, orientation or acceleration/deceleration of apparatus 700, and a change in temperature of apparatus 700. The sensor assembly 714 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 714 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 716 is configured to facilitate wired or wireless communication between the apparatus 700 and other devices. The apparatus 700 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 716 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 716 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 704 comprising instructions, executable by the processor 720 of the device 700 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Fig. 8 is a block diagram illustrating an apparatus 800 for backlight brightness adjustment according to an example embodiment. For example, the apparatus 800 may be provided as a server. Referring to FIG. 8, the apparatus 800 includes a processing component 822, which further includes one or more processors, and memory resources, represented by memory 832, for storing instructions, such as applications, that are executable by the processing component 822. The application programs stored in memory 832 may include one or more modules that each correspond to a set of instructions. Further, the processing component 822 is configured to execute instructions to perform the above-described methods.
The device 800 may also include a power component 826 configured to perform power management of the device 800, a wired or wireless network interface 850 configured to connect the device 800 to a network, and an input/output (I/O) interface 858. The apparatus 800 may operate based on an operating system stored in the memory 832, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (11)
1. A backlight brightness adjusting method is characterized by comprising the following steps:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
2. The backlight brightness adjustment method according to claim 1, wherein the step of continuously collecting the ambient brightness data comprises:
periodically acquiring an environment illumination value of an environment according to a preset sampling interval;
and storing the N recently acquired environment illumination values and the corresponding timestamp information into an environment illumination array, wherein N is an integer greater than 1.
3. The backlight brightness adjustment method according to claim 2, wherein the backlight brightness adjustment conditions at least comprise:
the reference ambient brightness value calculated according to the following expression reaches a preset ambient brightness change threshold:
mAmbientLux＝∑(lux[i]*weight[i])
and the mAmbientLux is the reference environment brightness value, lux [ i ] is the ith environment illumination value in the environment brightness array, and weight [ i ] is the weight value corresponding to the ith environment illumination value in the environment brightness array.
4. The backlight brightness adjustment method according to claim 3, wherein in the ambient brightness array, the timestamp information indicates a higher weight value for the ambient illumination value at a later collection time.
5. The backlight brightness adjusting method according to claim 3, wherein before the step of determining that the backlight brightness needs to be adjusted when the continuously collected ambient brightness data meets the backlight brightness adjusting condition, the method further comprises:
the reference ambient brightness value is calculated once each new ambient illuminance value is acquired.
6. The backlight brightness adjusting method according to claim 2, wherein the step of adjusting the backlight brightness according to the current ambient brightness comprises:
determining target backlight brightness according to the current environment brightness acquired in real time or taking the last environment illumination value in the environment brightness array as the current environment brightness;
adjusting the backlight brightness to the target backlight brightness.
7. A backlight luminance adjusting apparatus, comprising:
the brightness acquisition module is used for continuously acquiring the ambient brightness data;
the backlight adjustment triggering module is used for judging that the backlight brightness needs to be adjusted when the continuously acquired environment brightness data accords with the backlight brightness adjustment condition;
and the backlight adjusting module is used for adjusting the backlight brightness according to the current environment brightness.
8. The backlight brightness adjusting apparatus according to claim 7, wherein the backlight adjusting module comprises:
the target brightness determining submodule is used for determining target backlight brightness according to the current environment brightness acquired in real time or the last environment illumination value in the environment brightness array;
and the adjustment execution sub-module is used for adjusting the backlight brightness to the target backlight brightness.
9. The backlight luminance adjusting apparatus according to claim 8, further comprising a reference value calculating module;
the reference value calculating module is configured to calculate the reference environment brightness value once according to the following expression every time a new environment illuminance value is acquired:
mAmbientLux＝∑(lux[i]*weight[i])
wherein, mAmbientLux is the reference environment brightness value, lux [ i ] is the ith environment illumination value in the environment brightness array, and weight [ i ] is the weight value corresponding to the ith environment illumination value in the environment brightness array;
the backlight adjustment triggering module is specifically configured to determine that the backlight brightness needs to be adjusted when the reference environment brightness value reaches a preset environment brightness change threshold.
10. A non-transitory computer readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform a backlight brightness adjustment method, the method comprising:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
11. A computer device, comprising:
a processor;
a memory for storing processor line instructions;
wherein the processor is configured to:
continuously collecting ambient brightness data;
when the continuously acquired environment brightness data meet the backlight brightness adjustment condition, judging that the backlight brightness needs to be adjusted;
and adjusting the backlight brightness according to the current ambient brightness.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112783858A (en) * | 2021-01-04 | 2021-05-11 | 北京小米移动软件有限公司 | Brightness adjusting method and device, display equipment and medium |
| CN114281205A (en) * | 2021-12-13 | 2022-04-05 | 北京小米移动软件有限公司 | Screen brightness determination method, device, equipment and storage medium |
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| CN114281205A (en) * | 2021-12-13 | 2022-04-05 | 北京小米移动软件有限公司 | Screen brightness determination method, device, equipment and storage medium |
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