CN106484354B - Display brightness adjusting method and mobile terminal - Google Patents
Display brightness adjusting method and mobile terminal Download PDFInfo
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- CN106484354B CN106484354B CN201610933040.0A CN201610933040A CN106484354B CN 106484354 B CN106484354 B CN 106484354B CN 201610933040 A CN201610933040 A CN 201610933040A CN 106484354 B CN106484354 B CN 106484354B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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Abstract
The invention provides a display brightness adjusting method and a mobile terminal, wherein the method is applied to the mobile terminal and comprises the following steps: acquiring current ambient illuminance of the mobile terminal, and determining a first illuminance interval to which the current ambient illuminance belongs, wherein each illuminance interval is a plurality of non-coincident intervals obtained by dividing continuous ambient illuminance; determining a first ACL gear corresponding to the first illuminance interval according to the corresponding relation between the preset illuminance interval and the automatic current limiting ACL gear; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation; and adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal. The invention solves the problem that the influence of ambient light intensity is not considered when the ACL function is set in the conventional electronic equipment.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a display brightness adjustment method and a mobile terminal.
Background
As electronic devices are moving toward large screens, the power consumption generated by the screens is also increasing. In order to reduce the power consumption of the screen, some electronic devices are provided with an Automatic Current Limit (ACL) function, so that the display gray scale of an image is reduced, and the effect of saving power is achieved. Generally, the brightness of an image viewed by the human eye from an electronic device is determined by both the image display gray scale (output gray scale) and the display brightness of the electronic device, and is influenced by the ambient light illumination, for example, the same display brightness appears to be higher when the ambient light illumination is low than when the ambient light illumination is high.
The influence of ambient light intensity is not considered when the ACL function is set in the existing electronic equipment; for example, when the ambient illumination is high, the user needs to turn up the screen brightness, and the display content with low gray level will turn up the screen brightness to interfere with the viewing. Therefore, it is not beneficial to improve the user experience.
Disclosure of Invention
The invention provides a display brightness adjusting method and a mobile terminal, and aims to solve the problem that the influence of ambient light intensity is not considered when an ACL function is set in the conventional electronic equipment.
In one aspect, an embodiment of the present invention provides a method for adjusting display brightness, where the method is applied to a mobile terminal, and the method includes:
acquiring current ambient illuminance of the mobile terminal, and determining a first illuminance interval to which the current ambient illuminance belongs, wherein each illuminance interval is a plurality of non-coincident intervals obtained by dividing continuous ambient illuminance;
determining a first ACL gear corresponding to the first illuminance interval according to the corresponding relation between the preset illuminance interval and the automatic current limiting ACL gear; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation;
and adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal.
In another aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes:
the mobile terminal comprises a light illumination obtaining module, a first light illumination zone and a second light illumination zone, wherein the light illumination obtaining module is used for obtaining the current ambient light illumination of the mobile terminal and determining the first light illumination zone to which the current ambient light illumination belongs, and each light illumination zone is a plurality of non-coincident zones obtained by dividing continuous ambient light illumination;
the gear determining module is used for determining a first ACL gear corresponding to the first illuminance interval according to the corresponding relation between the preset illuminance interval and the automatic current limiting ACL gear; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation;
and the brightness adjusting module is used for adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal.
Therefore, the display brightness adjusting method and the mobile terminal provided by the invention determine the final display brightness of the display interface by determining the first ACL gear corresponding to the current ambient illuminance, so that the display brightness is related to the ambient illuminance, different ACL gears are set according to the ambient illuminance, the difference value between the dimming brightness and the display brightness is different in each ACL gear, and in a scene with low ambient illuminance, the ACL gear which enables more gray scales to be reduced is started and the maximum brightness is limited to be at a proper position; in a scene with high ambient light illumination, an ACL gear which enables the gray scale to be reduced to a smaller degree is started, the maximum brightness is expanded, and the display effect is improved; in the process of changing dimming brightness, the difference value between each gear is changed step by step, and the visual jump can be effectively slowed down at each gear switching point; the invention reduces the gray scale loss of the mobile terminal and achieves good visual consistency and power saving effect. The invention solves the problem that the influence of ambient light intensity is not considered when the ACL function is set in the conventional electronic equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a flowchart illustrating the basic steps of a display brightness adjustment method according to a first embodiment of the present invention;
FIG. 2 shows a schematic diagram of a first example of a first embodiment of the invention;
FIG. 3 shows a schematic diagram of a second example of the first embodiment of the invention;
fig. 4 shows one of block diagrams of a mobile terminal provided by a second embodiment of the present invention;
fig. 5 shows a second block diagram of a mobile terminal according to a second embodiment of the present invention;
fig. 6 is a block diagram of a mobile terminal according to a third embodiment of the present invention;
fig. 7 is a block diagram of a mobile terminal according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
Referring to fig. 1, a first embodiment of the present invention provides a display brightness adjustment method, which is applied to a mobile terminal, and includes:
step 101, obtaining current ambient light illumination of a mobile terminal, and determining a first light illumination interval to which the current ambient light illumination belongs, wherein each light illumination interval is a plurality of non-overlapping intervals obtained by dividing continuous ambient light illumination.
The illuminance, which is a so-called lux degree, indicates a luminous flux (which means a radiation power that can be sensed by human eyes) received per unit area of the surface of the subject, and the illuminance sections are divided by continuous illuminance, that is, the illuminance sections are continuous.
Step 102, determining a first ACL gear corresponding to a first illuminance interval according to a preset corresponding relation between the illuminance interval and an automatic current limiting ACL gear; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation.
In general, dimming brightness, i.e., brightness adjusted by a brightness adjustment function of the mobile terminal (in the case where the ACL is not turned on, a half-fraction value of the dimming brightness is equal to a percentage value of theoretical display brightness), the brightness adjustment function of the conventional mobile terminal adjusts by dimming a brightness bar, i.e., actual display brightness of a display screen of the mobile terminal. In the correspondence, different illuminance intervals correspond to different ACL gears. Under each ACL gear, different curve relations are formed between the dimming brightness and the display brightness; and determining the relation between the dimming brightness and the display brightness according to the illumination interval to which the mobile terminal belongs so as to adjust the display brightness according to the current dimming brightness.
Preferably, in the correspondence relationship, a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval having the higher ambient illuminance is not greater than a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval having the lower ambient illuminance.
The difference between the dimming brightness and the display brightness is the difference (or percentage difference) between the display brightness after the ACL is not turned on and the display brightness after the ACL is turned on. In the corresponding relation, the difference value between the dimming brightness and the display brightness of the ACL gear corresponding to the illuminance interval with higher ambient illuminance is not greater than the difference value between the dimming brightness and the display brightness of the ACL gear corresponding to the illuminance interval with lower ambient illuminance; that is, for a certain dimming brightness, the corresponding display brightness in the illumination interval with higher ambient light illumination is not lower than the corresponding display brightness in the illumination interval with lower ambient light illumination. After the mobile terminal starts the ACL, the output gray scale is reduced, so that the actual display brightness is lower than the dimming brightness, a certain difference value is generated, and the higher the illumination interval is, the more obvious the difference value is; in order to cancel the decrease in actual display luminance due to the gray-scale change caused by the ACL being turned on, the display luminance is appropriately supplemented in accordance with the curve relationship of the ACL shift when the display luminance is lower than the dimming luminance.
On the other hand, because the corresponding display brightness in the illuminance interval with higher ambient illuminance is not lower than the corresponding display brightness in the illuminance interval with lower ambient illuminance, that is, the display brightness corresponding to the higher ACL gear is greater than or equal to the display brightness corresponding to the lower ACL gear, when a plurality of ACL gears exist, a certain difference exists between the display brightness corresponding to each ACL gear for the same dimming brightness; under the lower ambient light illumination, the display brightness corresponding to the highest dimming brightness is lower than that under the higher ambient light illumination, so that the effects of limiting in a scene with very low ambient light illumination, starting an ACL gear which enables more gray scale reduction and limiting the maximum brightness at a proper position can be achieved; in a scene with high ambient light intensity, an ACL gear which reduces the gray scale to a small extent is started and the maximum brightness is expanded.
In addition, in the process of changing dimming brightness, no matter from high to low or from low to high, the dimming interval changes step by step, the ACL gear changes step by step, and the difference value between each gear also changes step by step, so that the sudden change of the brightness generated when each gear is switched is low, and the visual jump can be effectively slowed down.
And 103, adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal.
The corresponding display brightness under the first ACL gear is determined according to the current dimming brightness, the mobile terminal is adjusted according to the display brightness, and reasonable display brightness is set by combining ambient light illumination.
Preferably, step 103 comprises:
determining a preset first brightness curve corresponding to a first ACL gear;
determining a first display brightness value corresponding to the current dimming brightness according to the first brightness curve;
and adjusting the display brightness of the mobile terminal according to the first display brightness value.
The first brightness curve is a corresponding relation between dimming brightness and display brightness, namely, under different ACL gears, different curve relations are formed between the dimming brightness and the display brightness; and determining a first display brightness value according to the first brightness curve and the current dimming brightness so as to adjust the display brightness of the mobile terminal.
Optionally, in step 103, adjusting the display brightness of the mobile terminal may further set a manual adjustment mode of the user, and when the user manually adjusts the display brightness, the dimming brightness in the first illuminance interval may be selected by himself to obtain the display effect required by the user.
As a first example, referring to fig. 2, in the curve relationship between the display luminance and the dimming luminance shown in fig. 2, the ACL position corresponding to the curve L1 is C1, the ACL position corresponding to the curve L2 is C2 and …, the ACL position corresponding to the curve Ln is Cn, and L1 to Ln are luminance curves after ACL is turned on; l0 is a luminance curve after ACL is not turned on; wherein, C1, C2, … and Cn correspond to different illumination intervals respectively, and the corresponding illumination intervals have the height of C1 < C2 < … < Cn.
When the ACL is turned on, the output gray scale of the mobile terminal is reduced, and the illuminance of the environment is obtained in order to avoid sudden change of the display brightness; when the ACL position corresponding to the illuminance interval to which the ambient illuminance belongs is C1, it is indicated that the ambient illuminance is low and the required display brightness is low, so that the corresponding brightness curve is L1, and the difference between the dimming brightness and the display brightness is (a0-a1), so that a better power saving effect is achieved under the condition of matching with the ambient illuminance; and the maximum display brightness in the dimming interval is the highest point of L1 and is lower than the highest point of an unopened ACL, so that the maximum brightness in a low-illuminance environment is effectively limited.
When the ACL level corresponding to the illuminance interval to which the ambient illuminance belongs is Cn, it indicates that the ambient illuminance is high (higher than other dimming intervals), and the required display brightness is high, so that the corresponding brightness curve is Ln, and the difference between the dimming brightness and the display brightness is (a0-an), and a small gray scale jump will be generated; and the maximum display brightness in the dimming interval is the highest point of Ln and is higher than the highest points of other brightness curves, so that the maximum brightness in a high-illuminance environment is effectively expanded.
Under the condition that dimming brightness changes, no matter from high to low or from low to high, the dimming interval changes step by step, and when each gear switching point, the generated brightness difference is low, so that visual jump can be effectively slowed down.
Preferably, after step 103, the method comprises:
and when the dimming brightness of the mobile terminal is detected to be changed, updating the display brightness of the mobile terminal.
When the dimming brightness changes, the brightness curve and the display brightness are updated to keep the proper display brightness.
Optionally, step 101 comprises:
and when the dimming brightness of the mobile terminal reaches a preset adjusting threshold value, acquiring the current ambient light illumination of the mobile terminal.
When the input gray scale reaches the dimming brightness and reaches a preset adjusting threshold value, determining an ACL gear according to the ambient light illumination, reducing the output gray scale of the image, acquiring the current display brightness of the mobile terminal, and determining a first light illumination interval to which the mobile terminal belongs; and under the adjustment threshold, the generated gray level jump is small, and ACL is not started.
As a second example, see fig. 3, where, in the curve relationship between the display luminance and the dimming luminance shown in fig. 3, the ACL position corresponding to the curve L1 is C1, the ACL position corresponding to the curve L2 is C2, …, the ACL position corresponding to the curve Ln is Cn, and L1 to Ln are luminance curves after ACL is turned on; wherein, C1, C2, … and Cn correspond to different illumination intervals respectively, the height of the corresponding illumination interval is C1 < C2 < … < Cn, point b is an adjustment threshold, namely after point b, the display brightness is adjusted according to the illumination; before the point b, because the generated gray scale jump is small, the brightness curve does not need to be adjusted.
In the embodiment of the invention, the final display brightness of the display interface is determined by determining the first ACL gear corresponding to the current ambient illuminance, so that the display brightness is related to the ambient illuminance, different ACL gears are set according to the ambient illuminance, the difference value between the dimming brightness and the display brightness is different in each ACL gear, and in a scene with low ambient illuminance, the ACL gear which enables more gray scales to be reduced is started and the maximum brightness is limited to be at a proper position; in a scene with high ambient light illumination, an ACL gear which enables the gray scale to be reduced to a smaller degree is started, the maximum brightness is expanded, and the display effect is improved; in the process of changing dimming brightness, the difference value between each gear is changed step by step, and the visual jump can be effectively slowed down at each gear switching point; the invention reduces the gray scale loss of the mobile terminal and achieves good visual consistency and power saving effect. The invention solves the problem that the influence of ambient light intensity is not considered when the ACL function is set in the conventional electronic equipment.
Second embodiment
Referring to fig. 4, a second embodiment of the present invention provides a mobile terminal 400 including:
the illuminance obtaining module 401 is configured to obtain current ambient illuminance of the mobile terminal 400, and determine a first illuminance interval to which the current ambient illuminance belongs, where each illuminance interval is a plurality of non-overlapping intervals obtained by dividing continuous ambient illuminance.
The illuminance, which is a so-called lux degree, indicates a luminous flux (which means a radiation power that can be sensed by human eyes) received per unit area of the surface of the subject, and the illuminance sections are divided by continuous illuminance, that is, the illuminance sections are continuous.
A gear determining module 402, configured to determine a first ACL gear corresponding to a first illuminance interval according to a correspondence between a preset illuminance interval and an automatic current limit ACL gear; in each ACL position, the dimming brightness and the display brightness of the mobile terminal 400 are in a curve correlation.
In general, dimming brightness, i.e., brightness adjusted by the brightness adjustment function of the mobile terminal 400 (in the case where the ACL is not turned on, a half-fraction value of the dimming brightness is equal to a percentage value of theoretical display brightness), the brightness adjustment function of the conventional mobile terminal 400 adjusts by dimming the brightness bar, i.e., the display brightness of the display screen of the mobile terminal 400. In the correspondence, different illuminance intervals correspond to different ACL gears. Under each ACL gear, different curve relations are formed between the dimming brightness and the display brightness; according to the illumination interval to which the mobile terminal 400 belongs, the relationship between the dimming brightness and the display brightness is determined, so that the display brightness is adjusted according to the current dimming brightness.
Preferably, in the correspondence relationship, a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval having the higher ambient illuminance is not greater than a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval having the lower ambient illuminance.
And a brightness adjusting module 403, configured to adjust the display brightness of the mobile terminal 400 according to the first ACL level and the current dimming brightness of the mobile terminal 400.
The corresponding display brightness in the first ACL gear is determined according to the current dimming brightness, the mobile terminal 400 is adjusted according to the display brightness, and the reasonable display brightness is set in combination with the ambient light illumination.
Optionally, in the corresponding relationship, a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval with the higher ambient illuminance is not greater than a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval with the lower ambient illuminance.
Alternatively, referring to fig. 5, the brightness adjustment module 403 includes:
a curve determining submodule 4031, configured to determine a preset first brightness curve corresponding to the first ACL gear;
the brightness determination submodule 4032 is configured to determine, according to the first brightness curve, a first display brightness value corresponding to the current dimming brightness;
and a brightness adjusting sub-module 4033, configured to adjust the display brightness of the mobile terminal 400 according to the first display brightness value.
Optionally, referring to fig. 5, the mobile terminal 400 further includes:
a brightness updating module 404, configured to, after the brightness adjusting module 403 adjusts the display brightness of the mobile terminal 400,
when the dimming brightness of the mobile terminal 400 is detected to be changed, the display brightness of the mobile terminal 400 is updated.
Optionally, the illuminance acquisition module 401 is used for
When it is detected that the dimming brightness of the mobile terminal 400 reaches a preset adjustment threshold, the current ambient light illumination of the mobile terminal 400 is obtained.
In the embodiment of the invention, the final display brightness of the display interface is determined by determining the first ACL gear corresponding to the current ambient illuminance, so that the display brightness is related to the ambient illuminance, different ACL gears are set according to the ambient illuminance, the difference value between the dimming brightness and the display brightness is different in each ACL gear, and in a scene with low ambient illuminance, the ACL gear which enables more gray scales to be reduced is started and the maximum brightness is limited to be at a proper position; in a scene with high ambient light illumination, an ACL gear which enables the gray scale to be reduced to a smaller degree is started, the maximum brightness is expanded, and the display effect is improved; in the process of changing dimming brightness, the difference value between each gear is changed step by step, and the visual jump can be effectively slowed down at each gear switching point; the invention reduces the gray scale loss of the mobile terminal 400 and achieves good visual consistency and power saving effect. The invention solves the problem that the influence of ambient light intensity is not considered when the ACL function is set in the conventional electronic equipment.
Third embodiment
Fig. 6 is a block diagram of a mobile terminal according to a third embodiment of the present invention. The mobile terminal 600 shown in fig. 6 includes: at least one processor 601, memory 602, at least one network interface 604, and other user interfaces 603. The various components in the mobile terminal 600 are coupled together by a bus system 605. It is understood that the bus system 605 is used to enable communications among the components. The bus system 605 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 605 in fig. 6.
The user interface 603 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It will be appreciated that the memory 602 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double data rate Synchronous Dynamic random access memory (ddr SDRAM ), Enhanced Synchronous SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 602 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 602 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 6021 and application programs 6022.
The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application program 6022 includes various application programs, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services, and a program for implementing the method according to the embodiment of the present invention may be included in the application program 6022.
In the embodiment of the present invention, by calling a program or an instruction stored in the memory 602, specifically, a program or an instruction stored in the application program 6022, the processor 601 is configured to: acquiring current ambient illuminance of the mobile terminal, and determining a first illuminance interval to which the current ambient illuminance belongs, wherein each illuminance interval is a plurality of non-coincident intervals obtained by dividing continuous ambient illuminance; determining a first ACL gear corresponding to the first illuminance interval according to the corresponding relation between the preset illuminance interval and the automatic current limiting ACL gear; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation; and adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal.
The method disclosed by the above-mentioned embodiment of the present invention can be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The Processor 601 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the method in combination with the hardware thereof.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within 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), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Optionally, as another embodiment, in the correspondence relationship, a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval with the higher ambient illuminance is not greater than a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval with the lower ambient illuminance.
Optionally, as another embodiment, the processor 601 is further configured to: determining a preset first brightness curve corresponding to the first ACL gear; determining a first display brightness value corresponding to the current dimming brightness according to the first brightness curve; and adjusting the display brightness of the mobile terminal according to the first display brightness value.
Optionally, as another embodiment, the processor 601 is further configured to: and when the dimming brightness of the mobile terminal is detected to be changed, updating the display brightness of the mobile terminal.
Optionally, as another embodiment, the processor 601 is further configured to: when the dimming brightness of the mobile terminal reaches a preset adjusting threshold value, the current ambient light illumination of the mobile terminal is obtained.
The mobile terminal 600 can implement each process implemented by the mobile terminal in the foregoing embodiments, and details are not repeated here to avoid repetition.
According to the mobile terminal 600 of the embodiment of the invention, the processor 601 determines the first ACL gear corresponding to the current ambient illuminance to determine the final display brightness of the display interface, so that the display brightness is related to the ambient illuminance, different ACL gears are set according to the ambient illuminance, the difference value between the dimming brightness and the display brightness is different in each ACL gear, and in a scene with low ambient illuminance, the ACL gear which enables more gray scales to be reduced is started and the maximum brightness is limited to be at a proper position; in a scene with high ambient light illumination, an ACL gear which enables the gray scale to be reduced to a smaller degree is started, the maximum brightness is expanded, and the display effect is improved; in the process of changing dimming brightness, the difference value between each gear is changed step by step, and the visual jump can be effectively slowed down at each gear switching point; the invention reduces the gray scale loss of the mobile terminal and achieves good visual consistency and power saving effect. The invention solves the problem that the influence of ambient light intensity is not considered when the ACL function is set in the conventional electronic equipment.
Fourth embodiment
Fig. 7 is a block diagram of a mobile terminal according to a fourth embodiment of the present invention. Specifically, the mobile terminal 700 in fig. 7 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), or a vehicle-mounted computer.
The mobile terminal 700 in fig. 7 includes a Radio Frequency (RF) circuit 710, a memory 720, an input unit 730, a display unit 740, a processor 750, a wifi (wireless fidelity) module 760, an audio circuit 770, and a power supply 780.
The input unit 730 may be used, among other things, to receive numeric or character information input by a user and to generate signal inputs related to user settings and function control of the mobile terminal 700.
Specifically, in the embodiment of the present invention, the input unit 730 may include a touch panel 731. The touch panel 731, also referred to as a touch screen, can collect touch operations of a user (e.g. operations of the user on the touch panel 731 by using a finger, a stylus pen, or any other suitable object or accessory) thereon or nearby, and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 731 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 750, and can receive and execute commands sent by the processor 750. In addition, the touch panel 731 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 731, the input unit 730 may include other input devices 732, and the other input devices 732 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
Among them, the display unit 740 may be used to display information input by the user or information provided to the user and various menu interfaces of the mobile terminal 700. The display unit 740 may include a display panel 741, and optionally, the display panel 741 may be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).
It should be noted that the touch panel 731 can cover the display panel 741 to form a touch display screen, and when the touch display screen detects a touch operation on or near the touch display screen, the touch display screen is transmitted to the processor 750 to determine the type of the touch event, and then the processor 750 provides a corresponding visual output on the touch display screen according to the type of the touch event.
The touch display screen comprises an application program interface display area and a common control display area. The arrangement modes of the application program interface display area and the common control display area are not limited, and can be an arrangement mode which can distinguish two display areas, such as vertical arrangement, left-right arrangement and the like. The application interface display area may be used to display an interface of an application. Each interface may contain at least one interface element such as an icon and/or widget desktop control for an application. The application interface display area may also be an empty interface that does not contain any content. The common control display area is used for displaying controls with high utilization rate, such as application icons like setting buttons, interface numbers, scroll bars, phone book icons and the like.
In an embodiment of the present invention, the processor 750 is configured to, by invoking software programs and/or modules stored in the first memory 721 and/or data stored in the second memory 722: acquiring current ambient illuminance of the mobile terminal, and determining a first illuminance interval to which the current ambient illuminance belongs, wherein each illuminance interval is a plurality of non-coincident intervals obtained by dividing continuous ambient illuminance; determining a first ACL gear corresponding to the first illuminance interval according to the corresponding relation between the preset illuminance interval and the automatic current limiting ACL gear; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation; and adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal.
Optionally, as another embodiment, in the correspondence relationship, a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval with the higher ambient illuminance is not greater than a difference between the dimming brightness and the display brightness of the ACL level corresponding to the illuminance interval with the lower ambient illuminance.
Optionally, as another embodiment, the processor 750 is further configured to: determining a preset first brightness curve corresponding to the first ACL gear; determining a first display brightness value corresponding to the current dimming brightness according to the first brightness curve; and adjusting the display brightness of the mobile terminal according to the first display brightness value.
Optionally, as another embodiment, the processor 750 is further configured to: and when the dimming brightness of the mobile terminal is detected to be changed, updating the display brightness of the mobile terminal.
Optionally, as another embodiment, the processor 750 is further configured to: when the dimming brightness of the mobile terminal reaches a preset adjusting threshold value, the current ambient light illumination of the mobile terminal is obtained.
The mobile terminal 700 can implement the processes implemented by the mobile terminal in the foregoing embodiments, and details are not repeated here to avoid repetition.
According to the mobile terminal 700 of the embodiment of the invention, the processor 750 determines the first ACL gear corresponding to the current ambient illuminance to determine the final display brightness of the display interface, so that the display brightness is related to the ambient illuminance, different ACL gears are set according to the ambient illuminance, the difference value between the dimming brightness and the display brightness is different in each ACL gear, and in a scene with low ambient illuminance, the ACL gear which enables more gray scales to be reduced is started and the maximum brightness is limited to be at a proper position; in a scene with high ambient light illumination, an ACL gear which enables the gray scale to be reduced to a smaller degree is started, the maximum brightness is expanded, and the display effect is improved; in the process of changing dimming brightness, the difference value between each gear is changed step by step, and the visual jump can be effectively slowed down at each gear switching point; the invention reduces the gray scale loss of the mobile terminal and achieves good visual consistency and power saving effect. The invention solves the problem that the influence of ambient light intensity is not considered when the ACL function is set in the conventional electronic equipment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units 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 functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: u disk, removable hard disk, ROM, RAM, magnetic disk, optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A display brightness adjusting method is applied to a mobile terminal, and is characterized by comprising the following steps:
acquiring the current ambient illuminance of the mobile terminal, and determining a first illuminance interval to which the current ambient illuminance belongs, wherein each illuminance interval is a plurality of non-coincident intervals obtained by dividing continuous ambient illuminance;
determining a first ACL gear corresponding to a first illuminance interval according to a corresponding relation between a preset illuminance interval and an automatic current limiting ACL gear, wherein in the corresponding relation, different illuminance intervals correspond to different ACL gears; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation;
adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal;
in the corresponding relation, the difference value between the dimming brightness and the display brightness of the ACL gear corresponding to the illuminance interval with higher ambient illuminance is not greater than the difference value between the dimming brightness and the display brightness of the ACL gear corresponding to the illuminance interval with lower ambient illuminance;
the step of obtaining the current ambient light illumination of the mobile terminal includes:
when the dimming brightness of the mobile terminal is detected to reach a preset adjusting threshold value, acquiring the current ambient light illumination of the mobile terminal;
the method further comprises the following steps:
in the process of changing dimming brightness, the dimming interval changes step by step, the ACL gears change step by step, and the difference value between each gear also changes step by step.
2. The method of claim 1, wherein the step of adjusting the display brightness of the mobile terminal according to the first ACL shift and the current dimming brightness of the mobile terminal comprises:
determining a preset first brightness curve corresponding to the first ACL gear;
determining a first display brightness value corresponding to the current dimming brightness according to the first brightness curve;
and adjusting the display brightness of the mobile terminal according to the first display brightness value.
3. The method according to claim 1, wherein the step of adjusting the display brightness of the mobile terminal is followed by:
and when the dimming brightness of the mobile terminal is detected to be changed, updating the display brightness of the mobile terminal.
4. A mobile terminal, comprising:
the mobile terminal comprises an illuminance acquisition module, a first illuminance interval and a second illuminance interval, wherein the illuminance acquisition module is used for acquiring the current ambient illuminance of the mobile terminal and determining the first illuminance interval to which the current ambient illuminance belongs, and each illuminance interval is a plurality of non-coincident intervals obtained by dividing continuous ambient illuminance;
the gear determining module is used for determining a first ACL gear corresponding to a first illuminance interval according to a corresponding relation between a preset illuminance interval and an automatic current limiting ACL gear, wherein in the corresponding relation, different illuminance intervals correspond to different ACL gears; under each ACL gear, the dimming brightness and the display brightness of the mobile terminal are in curve correlation;
the brightness adjusting module is used for adjusting the display brightness of the mobile terminal according to the first ACL gear and the current dimming brightness of the mobile terminal;
in the corresponding relation, the difference value between the dimming brightness and the display brightness of the ACL gear corresponding to the illuminance interval with higher ambient illuminance is not greater than the difference value between the dimming brightness and the display brightness of the ACL gear corresponding to the illuminance interval with lower ambient illuminance;
the illuminance acquisition module is used for:
when the dimming brightness of the mobile terminal is detected to reach a preset adjusting threshold value, acquiring the current ambient light illumination of the mobile terminal;
the mobile terminal is further specifically configured to:
in the process of changing dimming brightness, the dimming interval changes step by step, the ACL gears change step by step, and the difference value between each gear also changes step by step.
5. The mobile terminal of claim 4, wherein the brightness adjustment module comprises:
the curve determining submodule is used for determining a preset first brightness curve corresponding to the first ACL gear;
the brightness determining submodule is used for determining a first display brightness value corresponding to the current dimming brightness according to the first brightness curve;
and the brightness adjusting submodule is used for adjusting the display brightness of the mobile terminal according to the first display brightness value.
6. The mobile terminal of claim 4, comprising:
a brightness updating module for updating the brightness of the mobile terminal after the brightness adjusting module adjusts the display brightness of the mobile terminal,
and when the dimming brightness of the mobile terminal is detected to be changed, updating the display brightness of the mobile terminal.
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| CN107591128B (en) * | 2017-10-18 | 2020-06-30 | 维沃移动通信有限公司 | Screen brightness adjusting method and mobile terminal |
| CN108775958B (en) * | 2018-05-29 | 2020-12-29 | Oppo（重庆）智能科技有限公司 | Brightness measuring and calibrating method and device based on light sensor and electronic equipment |
| CN109257507B (en) * | 2018-11-19 | 2021-03-12 | Oppo（重庆）智能科技有限公司 | Method for adjusting screen brightness, mobile terminal and storage medium |
| CN113539207B (en) * | 2020-04-15 | 2022-11-25 | 华为技术有限公司 | Display screen adjusting method, device and equipment |
| CN112863437B (en) * | 2021-01-15 | 2022-09-06 | 海信视像科技股份有限公司 | Display device and luminance control method |
| CN112908273A (en) * | 2021-02-02 | 2021-06-04 | 海信视像科技股份有限公司 | Display device and backlight adjusting method |
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