CN108510955A - Adjust the method and Related product of brightness of display screen - Google Patents
Adjust the method and Related product of brightness of display screen Download PDFInfo
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- CN108510955A CN108510955A CN201810366660.XA CN201810366660A CN108510955A CN 108510955 A CN108510955 A CN 108510955A CN 201810366660 A CN201810366660 A CN 201810366660A CN 108510955 A CN108510955 A CN 108510955A
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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
- G09G3/36—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 using liquid crystals
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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 embodiment of the present application discloses a kind of method and Related product of adjustment brightness of display screen, and this method includes：Obtain ambient light intensity；Determine target backlight luminance corresponding with ambient light intensity；When target backlight luminance is more than the backlight illumination upper limit value of mobile terminal, the backlight illumination of mobile terminal is adjusted to upper limit value, and increase the brightness value of the content to be displayed of display screen.The embodiment of the present application can adjust the backlight illumination of mobile terminal in time under manual adjustment mode.
Description
Technical field
The present invention relates to technical field of mobile terminals, and in particular to a kind of method adjusting brightness of display screen and related production
Product.
Background technology
Currently, the backlight illumination of the mobile terminals such as mobile phone, tablet computer could be provided as automatic adjustment pattern, can also set
It is set to manual adjustment mode.Under automatic adjustment pattern, the backlight illumination of mobile terminal can only be adjusted in a certain range,
It cannot be satisfied the demand of some special scenes.
Invention content
The embodiment of the present application provides a kind of method and Related product of adjustment brightness of display screen, can meet incandescent field
The display demand of scape.
The embodiment of the present application first aspect provides a kind of method of adjustment brightness of display screen, including：
Obtain ambient light intensity；
Determine target backlight luminance corresponding with the ambient light intensity；
When the target backlight luminance is more than the backlight illumination upper limit value of the mobile terminal, by the mobile terminal
Backlight illumination adjusts the brightness value for the content to be displayed for increasing display screen to the upper limit value.
The embodiment of the present application second aspect provides a kind of mobile terminal, including acquiring unit, determination unit, the first adjustment list
Member and second adjustment unit, wherein：
The acquiring unit, for obtaining ambient light intensity；
The determination unit, for determining target backlight luminance corresponding with the ambient light intensity；
The first adjustment unit, the backlight illumination upper limit for being more than the mobile terminal when the target backlight luminance
When value, the backlight illumination of the mobile terminal is adjusted to the upper limit value；
The second adjustment unit, the brightness value of the content to be displayed for increasing display screen.
The embodiment of the present application third aspect provides a kind of mobile terminal, including processor and memory, the memory
For storing one or more programs, one or more of programs are configured to be executed by the processor, described program packet
It includes for executing the step some or all of as described in the embodiment of the present application first aspect either method.
The embodiment of the present application fourth aspect provides a kind of computer readable storage medium, the computer readable storage medium
Computer program for storing electronic data interchange, wherein the computer program makes computer execute as the application is real
Some or all of apply described in a first aspect either method step.
The 5th aspect of the embodiment of the present application provides a kind of computer program product, and the computer program product includes storage
The non-transient computer readable storage medium of computer program, the computer program are operable to that computer is made to execute such as
Step some or all of described in the embodiment of the present application first aspect either method.
In the embodiment of the present application, acquisition for mobile terminal ambient light intensity；Determine target backlight corresponding with ambient light intensity
Brightness；When target backlight luminance be more than mobile terminal backlight illumination upper limit value when, by the backlight illumination of mobile terminal adjust to
Upper limit value increases the brightness value of the content to be displayed of display screen.The embodiment of the present application can be reached in the backlight illumination of mobile terminal
When to the upper limit, the brightness of the content to be displayed of display screen is further promoted, to meet the display demand of incandescent scene.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of flow diagram of the method for adjustment brightness of display screen disclosed in the embodiment of the present application；
Fig. 2 is the flow diagram of the method for another adjustment brightness of display screen disclosed in the embodiment of the present application；
Fig. 3 is the flow diagram of the method for another adjustment brightness of display screen disclosed in the embodiment of the present application；
Fig. 4 is a kind of structural schematic diagram of mobile terminal disclosed in the embodiment of the present application；
Fig. 5 is the structural schematic diagram of another mobile terminal disclosed in the embodiment of the present application；
Fig. 6 is the structural schematic diagram of another mobile terminal disclosed in the embodiment of the present application.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application are clearly and completely described, it is clear that described embodiment is only
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Term " first ", " second " in description and claims of this specification and above-mentioned attached drawing etc. are for distinguishing
Different objects, rather than for describing particular order.In addition, term " comprising " and " having " and their any deformations, it is intended that
It is to cover and non-exclusive includes.Such as process, method, system, product or the equipment for containing series of steps or unit do not have
It is defined in the step of having listed or unit, but further includes the steps that optionally not listing or unit, or optionally also wrap
It includes for other intrinsic steps of these processes, method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Mobile terminal involved by the embodiment of the present application may include various handheld devices with wireless communication function,
Mobile unit, wearable device, computing device or other processing equipments and various forms for being connected to radio modem
User equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal
Device) etc..For convenience of description, apparatus mentioned above is referred to as mobile terminal.
It describes in detail below to the embodiment of the present application.
Referring to Fig. 1, Fig. 1 is a kind of flow signal of the method for adjustment brightness of display screen disclosed in the embodiment of the present application
Figure, as shown in Figure 1, the method for the adjustment brightness of display screen includes the following steps.
101, acquisition for mobile terminal ambient light intensity.
In the embodiment of the present application, mobile terminal can by light sensor obtain ambient light intensity, light sensor,
Referred to as ambient light sensor can be used for detecting ambient light intensity, judge the field residing for mobile terminal according to ambient light intensity
Whether scape changes.Light sensor may include light-sensitive element and analog-digital converter, wherein light-sensitive element will be for that will acquire
Optical signal be converted to electric signal, analog-digital converter is used to above electrical signal being converted to digital signal.Optionally, light level
Device can also include signal amplifier, and signal amplifier exports after being amplified the electric signal that light-sensitive element is converted to mould
Number converter.Above-mentioned light-sensitive element may include in photodiode, phototriode, photo resistance, silicon photocell at least
It is a kind of.
The unit of ambient light intensity, alternatively referred to as ambient light illumination, ambient light intensity can be lux (lux).
102, mobile terminal determines target backlight luminance corresponding with ambient light intensity.
103, when target backlight luminance is more than the backlight illumination upper limit value of mobile terminal, mobile terminal is by mobile terminal
Backlight illumination is adjusted to upper limit value, increases the brightness value of the content to be displayed of display screen.
104, when target backlight luminance is less than the backlight illumination lower limiting value of mobile terminal, mobile terminal is by mobile terminal
Backlight illumination is adjusted to lower limiting value, reduces the brightness value of the content to be displayed of display screen.
In the embodiment of the present application, the display module of mobile terminal generally comprises：Display screen (for example, liquid crystal display), the back of the body
Light source (for example, LED backlight), driving circuit, connector and control circuit.Backlight is located at the behind of display screen, display screen
It itself does not shine, display screen shows that figure or character are the results that the light that display module generates backlight is modulated.
Backlight is generally by light source (for example, LED light), light guide plate (for example, light guide plate can be made of acrylic material), optical film
The compositions such as piece, plastic frame.Light guide plate is set above light source, optical diaphragm is set above light guide plate.Light guide plate and optical diaphragm can
Uniform light is converted to the light for generating light source.
The backlight illumination that mobile terminal is adjusted in the embodiment of the present application refers to the brightness for adjusting backlight.Due to backlight
The brightness of the limitation of operating voltage, the work of backlight can only change within the scope of one, therefore, move the backlight illumination of terminal not
The unconfined adjustment of energy, there are one the lower limiting values of the upper limit value and a backlight illumination of backlight illumination.
In the embodiment of the present application, mobile terminal can prestore the correspondence of ambient light intensity and backlight illumination,
In, the correspondence of ambient light intensity and backlight illumination can be stored in the nonvolatile memory of mobile terminal.Specifically,
The correspondence of ambient light intensity and backlight illumination can be stored in the nonvolatile memory of mobile terminal in table form
In.As shown in table 1, table 1 is a kind of mapping table of ambient light intensity and backlight illumination disclosed in the embodiment of the present application.
Table 1
As it can be seen from table 1 when ambient light intensity is in different ranges, corresponding backlight illumination differs.It is mobile whole
The backlight illumination at end generally has upper limit value and lower limiting value.For example, the upper limit value of backlight brightness is that maximum backlight is bright
The 100% of degree, the lower limiting value of backlight brightness are the 10% of maximum backlight illumination.
As shown in the overstriking font in table 1, when ambient light intensity is in 0-10lux, under corresponding backlight illumination is less than
Limit value；When ambient light intensity is in 10000lux or more, corresponding backlight illumination is higher than upper limit value.At this point, can not lead to
The backlight illumination of adjustment mobile terminal is crossed to change the brightness of the display content of display screen.In the embodiment of the present application, work as ambient light
When the corresponding backlight illumination of intensity is higher than upper limit value or less than lower limiting value, the backlight illumination of mobile terminal is adjusted to upper limit value
Either while lower limiting value increase or reduce mobile terminal display screen content to be displayed brightness value, to meet user
Display demand under incandescent scene or very dark scene.For example, with reference to table 1 it is found that incandescent scene, refers to mobile terminal
The ambient light intensity of residing scene is higher than the scene of 10000lux, such as outdoor strong laser field scape.Very dark scene refers to moving
The ambient light intensity of scene residing for terminal is less than the scene of 10lux, such as light-off scene in night room.It should be noted that
Table 1 is only the possible example for the mapping table that the application implements a kind of disclosed ambient light intensity and backlight illumination, this Shen
Please embodiment this is not limited.
Wherein, backlight illumination whether automatically adjusts pattern or manual adjustment mode, when mobile terminal (for example, mobile phone)
In incandescent scene (for example, outdoor strong light), even if the backlight illumination of mobile phone is transferred to maximum, may still will appear can not
The case where seeing screen clearly.At this point, in the case where backlight illumination is adjusted to upper limit value, the display of increase mobile terminal can be passed through
The brightness value of the corresponding pixel of content to be displayed of screen further promotes the brightness of the content to be displayed of display screen, to meet
Display demand of the user in incandescent scene.
When mobile terminal (for example, mobile phone) is in very dark scene (for example, in night room turn off the light), even if by the back of the body of mobile phone
Brightness is transferred to minimum, may still will appear the dazzling situation of brightness of display screen.At this point, being adjusted to lower limiting value in backlight illumination
In the case of, it can further be dropped by the brightness value of the corresponding pixel of content to be displayed of the display screen of reduction mobile terminal
The brightness of the content to be displayed of low display screen, to meet user very dark scene display demand.
Wherein, increase the brightness value of the content to be displayed of the display screen of mobile terminal, it can be by increasing mobile terminal
The brightness value of the corresponding pixel of content to be displayed of display screen is realized.
It, can be in mobile terminal when it is incandescent scene to detect the scene residing for mobile terminal in the embodiment of the present application
Backlight illumination when reaching the upper limit, the brightness of the content to be displayed of display screen is further promoted, to meet user in incandescent field
The display demand of scape.
Referring to Fig. 2, Fig. 2 is the flow signal of the method for another adjustment brightness of display screen disclosed in the embodiment of the present application
Figure, Fig. 2 advanced optimize to obtain on the basis of Fig. 1.As shown in Fig. 2, the method for the adjustment brightness of display screen includes such as
Lower step.
201, acquisition for mobile terminal ambient light intensity.
202, mobile terminal determines target backlight luminance corresponding with ambient light intensity.
203, when target backlight luminance is more than the backlight illumination upper limit value of mobile terminal, mobile terminal is by mobile terminal
Backlight illumination is adjusted to upper limit value.
It should be noted that the step 201-203 in the embodiment of the present application may refer to step 101-103 shown in FIG. 1,
Details are not described herein again.
204, the initial RGB values of the corresponding pixel of acquisition for mobile terminal content to be displayed, according to RGB color and YUV
The correspondence of color space determines initial YUV values corresponding with initial RGB values.
205, mobile terminal increases the Y value in initial YUV values, the YUV values after being adjusted.
206, mobile terminal determines and the YUV values after adjustment according to the correspondence of RGB color and YUV color spaces
Rgb value after corresponding adjustment.
207, mobile terminal shows the corresponding pixel of content to be displayed according to the rgb value after adjustment.
In the embodiment of the present application, display screen is illustrated by taking liquid crystal display as an example.Liquid crystal display is by multiple pixels
It constitutes, each pixel includes 3 sub- pixels again.The pixel value of each sub-pixel point is in corresponding RGB (RGB)
Any gray-scale intensity.Each sub-pixel point corresponds to a pixel access, for example, R sub-pixel points correspond to R pixel accesses,
R sub-pixels select between backlight plus only allow the light of red band by color filter, the grayscale of R sub-pixel points is bright
It spends and is determined by the light transmittance of R sub-pixel points, the deflection of the light transmittance of R sub-pixel points and the corresponding liquid crystal molecule of the R sub-pixel points
Angle is related, and the deflection angle of liquid crystal molecule and load are related in the pixel voltage of liquid crystal molecule brightness.In general, pixel is electric
Pressure is higher, and the deflection angle of corresponding liquid crystal molecule is bigger, and light transmittance is higher, and corresponding gray-scale intensity is higher.
The display content of display screen carries out refreshing with preset refreshing frequency and shows.For example, preset refreshing frequency can be with
It is set as 60Hz, that is, refreshing and showing 60 frame pictures for 1 second, refreshes a frame picture on a display screen every 16.67ms.This Shen
The content of content to be displayed namely next frame picture that please be in embodiment.The content of each frame picture all corresponds to institute on display screen
There is one group of rgb value of pixel.
The initial RGB values of the corresponding pixel of content to be displayed in the embodiment of the present application are according to the to be shown interior of display screen
Hold to determine.
In order to further promote in the case of backlight illumination adjusted supreme limit value the content to be displayed of display screen
Brightness, it is corresponding initial that the initial RGB values of the corresponding pixel of content to be displayed are converted to YUV color spaces by the embodiment of the present application
YUV values.Specifically, can be converted according to the correspondence of following RGB color and YUV color spaces.
R=Y+1.140V；
G=Y-0.395U-0.581V；
B=Y+2.032U；
Wherein, in YUV color spaces, Y is luminance component, and U, V are color component.
Under the premise of keeping U, V component constant, increase the size of Y-component, the YUV values after being adjusted, then basis
YUV values after adjustment are converted to the rgb value after adjustment by the correspondence of RGB color and YUV color spaces, according to adjustment
Rgb value afterwards shows the corresponding pixel of content to be displayed.To play the brightness for the content to be displayed for promoting display screen
Purpose.Due to not changing U, V component, Y-component is only improved so that rgb value after adjustment will not lead to misalignment, can be with
The validity of color is kept while improving brightness.
In the embodiment of the present application, when showing present frame picture, the rgb value of next frame picture is adjusted, to be promoted
Y value component in yuv space, to the brightness of the display content of promotion display screen when next frame picture is shown.
The embodiment of the present application increases the brightness value of content to be displayed by changing the initial RGB values of pixel, to carry on the back
The brightness that the content to be displayed of display screen is further promoted in the case of the adjusted supreme limit value of brightness, to meet user
In the display demand of incandescent scene.
Optionally, step 205 can specifically include：
(11) mobile terminal determines the backlight illumination difference of target backlight luminance and backlight illumination upper limit value.
(12) mobile terminal determines target corresponding with backlight illumination difference according to the correspondence of difference and Y value incrementss
Y value incrementss.
(13) mobile terminal by initial YUV values Y value increase target Y value incrementss after be adjusted after YUV values.
In the embodiment of the present application, the correspondence of difference and Y value incrementss can be set and be stored in movement in advance
In the nonvolatile memory of terminal.As shown in table 2, table 2 is a kind of difference disclosed in the embodiment of the present application and Y value incrementss
Mapping table.
Table 2
From table 2 it can be seen that when backlight illumination difference is in different ranges, corresponding Y value incrementss differ.Generally
For, backlight illumination difference is bigger, and corresponding Y value incrementss are bigger.It should be noted that table 2, which is only the application, implements disclosure
A kind of difference and Y value incrementss mapping table possible example, the embodiment of the present application do not limit this.
In the embodiment of the present application, it is whole after rgb value do not exceed maximum gray value.For example, if RGB values are 0-255,
The maximum value of rgb value after then whole is no more than 255.
208, when target backlight luminance is less than the backlight illumination lower limiting value of mobile terminal, mobile terminal is by mobile terminal
Backlight illumination is adjusted to lower limiting value, reduces the brightness value of the content to be displayed of display screen.
Wherein, step 208 may include steps of：
(21) when target backlight luminance is less than the backlight illumination lower limiting value of mobile terminal, acquisition for mobile terminal is to be shown interior
The initial RGB values for holding corresponding pixel, according to the determination of the correspondence of RGB color and YUV color spaces and initial RGB values
Corresponding initial YUV values.
(22) mobile terminal reduces the Y value in initial YUV values, the YUV values after being adjusted.
(23) mobile terminal determines and the YUV values after adjustment according to the correspondence of RGB color and YUV color spaces
Rgb value after corresponding adjustment.
(24) mobile terminal shows the corresponding pixel of content to be displayed according to the rgb value after adjustment.
Similar, step (21) to step (24) may refer to description of the step 204 to step 207, and details are not described herein again.
The embodiment of the present application reduces the brightness value of content to be displayed by changing the initial RGB values of pixel, to carry on the back
The adjusted brightness to the content to be displayed for further decreasing display screen in the case of lower limiting value of brightness, to meet user
In the display demand of very dark scene.
The embodiment of the present application increases the brightness value of content to be displayed by changing the initial RGB values of pixel, to carry on the back
The brightness that the content to be displayed of display screen is further promoted in the case of the adjusted supreme limit value of brightness, to meet user
In the display demand of incandescent scene.
Referring to Fig. 3, Fig. 3 is the flow signal of the method for another adjustment brightness of display screen disclosed in the embodiment of the present application
Figure, Fig. 3 advanced optimize to obtain on the basis of Fig. 1.As shown in figure 3, the method for the adjustment brightness of display screen includes such as
Lower step.
301, acquisition for mobile terminal ambient light intensity.
302, mobile terminal determines target backlight luminance corresponding with ambient light intensity.
303, when target backlight luminance is more than the backlight illumination upper limit value of mobile terminal, mobile terminal is by mobile terminal
Backlight illumination is adjusted to upper limit value.
It should be noted that the step 301-303 in the embodiment of the present application may refer to step 101-103 shown in FIG. 1,
Details are not described herein again.
304, the initial RGB values of the corresponding pixel of acquisition for mobile terminal content to be displayed.
305, mobile terminal determines corresponding with initial RGB values according to backlight illumination and the correspondence of rgb value incrementss
Target rgb value incrementss.
306, initial RGB values are increased the rgb value incrementss after target rgb value incrementss are adjusted by mobile terminal.
307, mobile terminal shows the corresponding pixel of content to be displayed according to the rgb value after adjustment.
In the embodiment of the present application, mobile terminal becomes the rgb value after adjustment after directly being tuned up to initial RGB values.It can incite somebody to action
Initial RGB values increase separately preset increments, the rgb value after being adjusted.For example, initial RGB values are (100,100,100), such as
Fruit rgb value increment is 50, then the rgb value after adjusting is (150,150,150).
Wherein, backlight illumination and the correspondence of rgb value incrementss can pre-set and be stored in the non-of mobile terminal
In volatile memory.As shown in table 3, table 3 is a kind of pair of backlight illumination and rgb value incrementss disclosed in the embodiment of the present application
Answer relation table.
Table 3
From table 3 it can be seen that when backlight illumination is in different ranges, corresponding rgb value incrementss differ.It is general and
Speech, backlight illumination is bigger, and corresponding rgb value incrementss are bigger.It should be noted that table 3, which is only the application, implements disclosed one
The possible example of kind backlight illumination and the mapping table of rgb value incrementss, the embodiment of the present application do not limit this.
308, when target backlight luminance is less than the backlight illumination lower limiting value of mobile terminal, mobile terminal is by mobile terminal
Backlight illumination is adjusted to lower limiting value, reduces the brightness value of the content to be displayed of display screen.
It should be noted that the step 308 in the embodiment of the present application may refer to step 208 shown in Fig. 2, herein no longer
It repeats.
Rgb value need not be converted to YUV values by the embodiment of the present application, and transfer algorithm is simple, it is possible to reduce data operation quantity,
Improve the conversion speed of the RGB after Initial R GB to adjustment.
The embodiment of the present application increases the brightness value of content to be displayed by being directly changed the initial RGB values of pixel, to
The brightness that the content to be displayed of display screen is further promoted in the case of backlight illumination adjusted supreme limit value, to meet
Display demand of the user in incandescent scene.
It is above-mentioned that mainly the scheme of the embodiment of the present application is described from the angle of method side implementation procedure.It is appreciated that
, for mobile terminal in order to realize above-mentioned function, it comprises execute the corresponding hardware configuration of each function and/or software mould
Block.Those skilled in the art should be readily appreciated that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, the present invention can be realized with the combining form of hardware or hardware and computer software.Some function actually with
Hardware or computer software drive the mode of hardware to execute, and depend on the specific application and design constraint item of technical solution
Part.Professional technician specifically can realize described function to each using distinct methods, but this reality
Now it should not be considered as beyond the scope of the present invention.
The embodiment of the present application can carry out mobile terminal according to the above method example division of functional unit, for example, can
Each functional unit is divided with each function of correspondence, two or more functions can also be integrated in a processing unit
In.The form that hardware had both may be used in above-mentioned integrated unit is realized, can also be realized in the form of SFU software functional unit.It needs
It is noted that be schematical, only a kind of division of logic function to the division of unit in the embodiment of the present application, it is practical real
It is current that there may be another division manner.
Referring to Fig. 4, Fig. 4 is a kind of structural schematic diagram of mobile terminal disclosed in the embodiment of the present application.As shown in figure 4,
The mobile terminal 400 includes acquiring unit 401, determination unit 402, the first adjustment unit 403 and second adjustment unit 404,
Wherein：
Acquiring unit 401, for obtaining ambient light intensity.
Determination unit 402, for determining target backlight luminance corresponding with ambient light intensity.
The first adjustment unit 403 is used to, when target backlight luminance is more than the backlight illumination upper limit value of mobile terminal, to move
The backlight illumination of dynamic terminal is adjusted to upper limit value.
Second adjustment unit 404, the brightness value of the content to be displayed for increasing display screen.
Optionally, second adjustment unit 404 includes：
First obtains subelement, the initial RGB values for obtaining the corresponding pixel of content to be displayed, according to RGB color sky
Between and the correspondences of YUV color spaces determine corresponding with initial RGB values initial YUV values；
The first adjustment subelement, for increasing the Y value in initial YUV values, the YUV values after being adjusted；
First determination subelement, after determining and adjusting according to the correspondence of RGB color and YUV color spaces
The corresponding adjustment of YUV values after rgb value；
First display subelement, for being shown to the corresponding pixel of content to be displayed according to the rgb value after adjusting.
Optionally, the first adjustment subelement includes：
Second determination subelement, the backlight illumination difference for determining target backlight luminance and backlight illumination upper limit value；
Third determination subelement, for being determined and backlight illumination difference pair according to the correspondence of difference and Y value incrementss
The target Y value incrementss answered；
Second adjustment subelement, for it will be adjusted after the Y value increase target Y value incrementss in initial YUV values after
YUV values.
Optionally, second adjustment unit 404 includes：
Second obtains subelement, the initial RGB values for obtaining the corresponding pixel of content to be displayed；
4th determination subelement, for according to the correspondence determination of backlight illumination and rgb value incrementss and initial RGB values
Corresponding target rgb value incrementss；
Third adjusts subelement, increases for the rgb value after being adjusted initial RGB values increase target rgb value incrementss
Dosage；
Second display subelement, for being shown to the corresponding pixel of content to be displayed according to the rgb value after adjusting.
Optionally, the first adjustment unit 403 is additionally operable to be less than the backlight illumination lower limit of mobile terminal when target backlight luminance
When value, the backlight illumination of mobile terminal is adjusted to lower limiting value；
Second adjustment unit 404 is additionally operable to reduce the brightness value of the content to be displayed of display screen.
Wherein, acquiring unit 404 can be the light sensor in mobile terminal.Determination unit 402, the first adjustment unit
403 and second adjustment unit 404 can be mobile terminal display module or image processor.
Implement mobile terminal shown in Fig. 4, when it is incandescent scene to detect the scene residing for mobile terminal, can move
When the backlight illumination of dynamic terminal reaches the upper limit, the brightness of the content to be displayed of display screen is further promoted, is existed to meet user
The display demand of incandescent scene.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of another mobile terminal disclosed in the embodiment of the present application.Such as Fig. 5 institutes
Show, which includes processor 501 and memory 502, wherein mobile terminal 500 can also include bus 503, place
Reason device 501 and memory 502 can be connected with each other by bus 503, and bus 503 can be Peripheral Component Interconnect standard
(Peripheral Component Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (Extended
Industry Standard Architecture, abbreviation EISA) bus etc..It is total that bus 503 can be divided into address bus, data
Line, controlling bus etc..For ease of indicating, only indicated with a thick line in Fig. 5, it is not intended that an only bus or a type
The bus of type.Wherein, mobile terminal 500 can also include input-output equipment 504, and input-output equipment 504 may include showing
Display screen, such as liquid crystal display.Memory 502 is used to store the one or more programs for including instruction；Processor 501 is for adjusting
With method and step some or all of in the above-mentioned Fig. 1 to Fig. 3 of the instruction execution being stored in memory 502.
Implement mobile terminal shown in fig. 5, when it is incandescent scene to detect the scene residing for mobile terminal, can move
When the backlight illumination of dynamic terminal reaches the upper limit, the brightness of the content to be displayed of display screen is further promoted, is existed to meet user
The display demand of incandescent scene.
The embodiment of the present application also provides another mobile terminals, as shown in fig. 6, for convenience of description, illustrate only with
The relevant part of the embodiment of the present application, particular technique details do not disclose, please refer to the embodiment of the present application method part.The movement
Terminal can be include mobile phone, tablet computer, PDA (Personal Digital Assistant, personal digital assistant), POS
The arbitrary terminal device such as (Point of Sales, point-of-sale terminal), vehicle-mounted computer, by taking mobile terminal is mobile phone as an example：
Fig. 6 shows the block diagram with the part-structure of the relevant mobile phone of mobile terminal provided by the embodiments of the present application.Ginseng
Fig. 6 is examined, mobile phone includes：Radio frequency (Radio Frequency, RF) circuit 910, memory 920, input unit 930, display unit
940, sensor 950, voicefrequency circuit 960, Wireless Fidelity (Wireless Fidelity, WiFi) module 970, processor 980,
And the equal components of power supply 990.It will be understood by those skilled in the art that handset structure shown in Fig. 6 is not constituted to mobile phone
It limits, may include either combining certain components or different components arrangement than illustrating more or fewer components.
Each component parts of mobile phone is specifically introduced with reference to Fig. 6：
RF circuits 910 can be used for sending and receiving for information.In general, RF circuits 910 include but not limited to antenna, at least one
A amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition,
RF circuits 910 can also be communicated with network and other equipment by radio communication.Above-mentioned wireless communication can use any communication
Standard or agreement, including but not limited to global system for mobile communications (Global System of Mobile
Communication, GSM), general packet radio service (General Packet Radio Service, GPRS), code it is point more
Location (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division
Multiple Access, WCDMA), long term evolution (Long Term Evolution, LTE), Email, short message service
(Short Messaging Service, SMS) etc..
Memory 920 can be used for storing software program and module, and processor 980 is stored in memory 920 by operation
Software program and module, to execute various function application and the data processing of mobile phone.Memory 920 can include mainly
Storing program area and storage data field, wherein storing program area can storage program area, the application journey needed at least one function
Sequence etc.；Storage data field can be stored uses created data etc. according to mobile phone.In addition, memory 920 may include high speed
Random access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or
Other volatile solid-state parts.
Input unit 930 can be used for receiving the number or character information of input, and generate with the user setting of mobile phone with
And the related key signals input of function control.Specifically, input unit 930 may include fingerprint recognition module 931 and other are defeated
Enter equipment 932.Fingerprint recognition module 931 can acquire the finger print data of user on it.In addition to fingerprint recognition module 931, input
Unit 930 can also include other input equipments 932.Specifically, other input equipments 932 can include but is not limited to touch-control
One kind in screen, physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating lever etc.
Or it is a variety of.
Display unit 940 can be used for showing information input by user or be supplied to user information and mobile phone it is various
Menu.Display unit 940 may include display screen 941, optionally, liquid crystal display (Liquid Crystal may be used
Display, LCD), the forms such as organic or inorganic light emitting diode (Organic Light-Emitting Diode, OLED) come
Configure display screen 941.
Mobile phone may also include at least one sensor 950, such as optical sensor, motion sensor, pressure sensor, temperature
Sensor and other sensors.Specifically, optical sensor may include ambient light sensor (also referred to as light sensor) and connect
Nearly sensor, wherein ambient light sensor can adjust the backlight illumination of mobile phone according to the light and shade of ambient light, and then adjust aobvious
The brightness of display screen 941, proximity sensor can close display screen 941 and/or backlight when mobile phone is moved in one's ear.As movement
One kind of sensor, accelerometer sensor can detect in all directions the size of (generally three axis) acceleration, can be examined when static
Size and the direction for measuring gravity, can be used to identify mobile phone posture application (such as horizontal/vertical screen switching, magnetometer pose calibrating),
Vibration identification correlation function (such as pedometer, percussion) etc.；The gyroscope that can also configure as mobile phone, barometer, hygrometer, temperature
The other sensors such as meter, infrared sensor are spent, details are not described herein.
Voicefrequency circuit 960, loud speaker 961, microphone 962 can provide the audio interface between user and mobile phone.Audio-frequency electric
The transformed electric signal of the audio data received can be transferred to loud speaker 961 by road 960, and sound is converted to by loud speaker 961
Signal plays；On the other hand, the voice signal of collection is converted to electric signal by microphone 962, is turned after being received by voicefrequency circuit 960
It is changed to audio data, then by after the processing of audio data playback process device 980, through RF circuits 910 to be sent to such as another mobile phone,
Or audio data is played to memory 920 to be further processed.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user's transceiver electronics postal by WiFi module 970
Part, browsing webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 6 is shown
WiFi module 970, but it is understood that, and it is not belonging to must be configured into for mobile phone, it can not change as needed completely
Become in the range of the essence of invention and omits.
Processor 980 is the control centre of mobile phone, using the various pieces of various interfaces and connection whole mobile phone, is led to
It crosses operation or executes the software program and/or module being stored in memory 920, and call and be stored in memory 920
Data execute the various functions and processing data of mobile phone, to carry out integral monitoring to mobile phone.Optionally, processor 980 can wrap
Include one or more processing units；Preferably, processor 980 can integrate application processor and modem processor, wherein answer
With the main processing operation system of processor, user interface and application program etc., modem processor mainly handles wireless communication.
It is understood that above-mentioned modem processor can not also be integrated into processor 980.
Mobile phone further includes the power supply 990 (such as battery) powered to all parts, it is preferred that power supply can pass through power supply pipe
Reason system and processor 980 are logically contiguous, to realize management charging, electric discharge and power managed by power-supply management system
Etc. functions.
Mobile phone can also include camera 9100, and camera 9100 is for shooting image and video, and by the image of shooting
It is handled to processor 980 with transmission of video.
Mobile phone can be with bluetooth module etc., and details are not described herein.
In earlier figures 1~embodiment shown in Fig. 3, each step method flow can be realized based on the structure of the mobile phone.
The embodiment of the present application also provides a kind of computer storage media, wherein computer storage media storage is for electricity
The computer program that subdata exchanges, it is any as described in above method embodiment which so that computer is executed
A kind of some or all of method step of adjustment brightness of display screen.
The embodiment of the present application also provides a kind of computer program product, and the computer program product includes storing calculating
The non-transient computer readable storage medium of machine program, the computer program are operable to that computer is made to execute such as above-mentioned side
Some or all of the method for any type adjustment brightness of display screen described in method embodiment step.
It should be noted that for each method embodiment above-mentioned, for simple description, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the described action sequence because
According to the present invention, certain steps can be performed in other orders or simultaneously.Secondly, those skilled in the art should also know
It knows, embodiment described in this description belongs to preferred embodiment, and involved action and module are not necessarily of the invention
It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, for example, the unit division, it is only a kind of
Division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit,
Can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer-readable access to memory.Based on this understanding, technical scheme of the present invention substantially or
Person says that all or part of the part that contributes to existing technology or the technical solution can body in the form of software products
Reveal and, which is stored in a memory, including some instructions are used so that a computer equipment
(can be personal computer, server or network equipment etc.) executes all or part of each embodiment the method for the present invention
Step.And memory above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer-readable memory, memory
May include：Flash disk, read-only memory (English：Read-Only Memory, referred to as：ROM), random access device (English：
Random Access Memory, referred to as：RAM), disk or CD etc..
The embodiment of the present application is described in detail above, specific case used herein to the principle of the present invention and
Embodiment is expounded, and the explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention；
Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, can in specific embodiments and applications
There is change place, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (12)
1. a kind of method of adjustment brightness of display screen, which is characterized in that including：
Obtain ambient light intensity；
Determine target backlight luminance corresponding with the ambient light intensity；
When the target backlight luminance is more than the backlight illumination upper limit value of the mobile terminal, by the backlight of the mobile terminal
Brightness adjustment increases the brightness value of the content to be displayed of display screen to the upper limit value.
2. according to the method described in claim 1, it is characterized in that, it is described increase display screen content to be displayed brightness value,
Including：
The initial RGB values for obtaining the corresponding pixel of content to be displayed are closed according to RGB color is corresponding with YUV color spaces
System determines initial YUV values corresponding with the initial RGB values；
Increase the Y value in the initial YUV values, the YUV values after being adjusted；
Tune corresponding with the YUV values after the adjustment is determined according to the correspondence of the RGB color and YUV color spaces
Rgb value after whole；
The corresponding pixel of the content to be displayed is shown according to the rgb value after the adjustment.
3. according to the method described in claim 2, it is characterized in that, the Y value increased in the initial YUV values, is adjusted
YUV values after whole, including：
Determine the backlight illumination difference of the target backlight luminance and the backlight illumination upper limit value；
Target Y value incrementss corresponding with the backlight illumination difference are determined according to the correspondence of difference and Y value incrementss；
Y value in the initial YUV values is increased into the YUV values after being adjusted after the target Y value incrementss.
4. according to the method described in claim 1, it is characterized in that, it is described increase display screen content to be displayed brightness value,
Including：
Obtain the initial RGB values of the corresponding pixel of content to be displayed；
Determine that target rgb value corresponding with the initial RGB values increases according to backlight illumination and the correspondence of rgb value incrementss
Amount；
The initial RGB values are increased into the rgb value incrementss after the target rgb value incrementss are adjusted；
The corresponding pixel of the content to be displayed is shown according to the rgb value after the adjustment.
5. according to claim 1-4 any one of them methods, which is characterized in that the method further includes：
When the target backlight luminance is less than the backlight illumination lower limiting value of the mobile terminal, by the backlight of the mobile terminal
Brightness adjustment reduces the brightness value of the content to be displayed of display screen to the lower limiting value.
6. a kind of mobile terminal, which is characterized in that including acquiring unit, determination unit, the first adjustment unit and second adjustment
Unit, wherein：
The acquiring unit, for obtaining ambient light intensity；
The determination unit, for determining target backlight luminance corresponding with the ambient light intensity；
The first adjustment unit, the backlight illumination upper limit value for being more than the mobile terminal when the target backlight luminance
When, the backlight illumination of the mobile terminal is adjusted to the upper limit value；
The second adjustment unit, the brightness value of the content to be displayed for increasing display screen.
7. mobile terminal according to claim 6, which is characterized in that the second adjustment unit includes：
First obtain subelement, the initial RGB values for obtaining the corresponding pixel of content to be displayed, according to RGB color with
The correspondence of YUV color spaces determines initial YUV values corresponding with the initial RGB values；
The first adjustment subelement, for increasing the Y value in the initial YUV values, the YUV values after being adjusted；
First determination subelement, for being determined and the tune according to the correspondence of the RGB color and YUV color spaces
The rgb value after the corresponding adjustment of YUV values after whole；
First display subelement, for being shown to the corresponding pixel of the content to be displayed according to the rgb value after the adjustment
Show.
8. mobile terminal according to claim 7, which is characterized in that the first adjustment subelement includes：
Second determination subelement, the backlight illumination for determining the target backlight luminance and the backlight illumination upper limit value are poor
Value；
Third determination subelement, for being determined and the backlight illumination difference pair according to the correspondence of difference and Y value incrementss
The target Y value incrementss answered；
Second adjustment subelement, for being adjusted after the Y value in the initial YUV values is increased the target Y value incrementss
YUV values afterwards.
9. mobile terminal according to claim 8, which is characterized in that the second adjustment unit includes：
Second obtains subelement, the initial RGB values for obtaining the corresponding pixel of content to be displayed；
4th determination subelement, for being determined and the initial RGB values according to the correspondence of backlight illumination and rgb value incrementss
Corresponding target rgb value incrementss；
Third adjusts subelement, for the initial RGB values to be increased the RGB after the target rgb value incrementss are adjusted
It is worth incrementss；
Second display subelement, for being shown to the corresponding pixel of the content to be displayed according to the rgb value after the adjustment
Show.
10. according to claim 6-9 any one of them mobile terminals, which is characterized in that
The first adjustment unit is additionally operable to be less than the backlight illumination lower limiting value of the mobile terminal when the target backlight luminance
When, the backlight illumination of the mobile terminal is adjusted to the lower limiting value；
The second adjustment unit is additionally operable to reduce the brightness value of the content to be displayed of display screen.
11. a kind of mobile terminal, which is characterized in that including processor and memory, the memory for store one or
Multiple programs, one or more of programs are configured to be executed by the processor, and described program includes for executing as weighed
Profit requires 1-5 any one of them methods.
12. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium is for storing electron number
According to the computer program of exchange, wherein it is as described in any one in claim 1-5 that the computer program so that computer executes
Method.
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| CN201810366660.XA CN108510955A (en) | 2018-04-23 | 2018-04-23 | Adjust the method and Related product of brightness of display screen |
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| CN201810366660.XA CN108510955A (en) | 2018-04-23 | 2018-04-23 | Adjust the method and Related product of brightness of display screen |
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| CN108711402A (en) * | 2018-05-07 | 2018-10-26 | Oppo广东移动通信有限公司 | Brightness of display screen method of adjustment and Related product |
| CN109272917A (en) * | 2018-10-25 | 2019-01-25 | Oppo广东移动通信有限公司 | Screen luminance adjustment method, device, storage medium and electronic equipment |
| CN109584823A (en) * | 2018-12-20 | 2019-04-05 | 深圳市视安通电子有限公司 | A kind of liquid crystal display colour cast supplement alignment technique |
| CN109947228A (en) * | 2019-03-27 | 2019-06-28 | 努比亚技术有限公司 | A kind of display panel control method, device and computer readable storage medium |
| CN110969996A (en) * | 2018-09-30 | 2020-04-07 | 北京奇虎科技有限公司 | Mobile terminal, method and device for adjusting brightness of display screen of mobile terminal and storage medium |
| CN111341254A (en) * | 2018-12-19 | 2020-06-26 | 北京小米移动软件有限公司 | Brightness adjusting method and device of display screen |
| CN112309321A (en) * | 2019-07-24 | 2021-02-02 | 北京小米移动软件有限公司 | Display control method and device and storage medium |
| WO2021093829A1 (en) * | 2019-11-13 | 2021-05-20 | 深圳市道通科技股份有限公司 | Screen brightness adjustment method and mobile terminal |
| CN114639356A (en) * | 2022-03-14 | 2022-06-17 | Oppo广东移动通信有限公司 | Display brightness adjusting method and device, electronic equipment and computer readable storage medium |
| CN115457905A (en) * | 2022-10-21 | 2022-12-09 | 深圳市升宏光电科技有限公司 | Adaptive dimming compensation method, device and system of LED display screen and electronic equipment |
| CN116110351A (en) * | 2023-04-13 | 2023-05-12 | 荣耀终端有限公司 | Backlight control method, device, chip, electronic equipment and medium |
| WO2024012227A1 (en) * | 2022-07-15 | 2024-01-18 | 华为技术有限公司 | Image display method applied to electronic device, coding method, and related apparatus |
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| CN111341254A (en) * | 2018-12-19 | 2020-06-26 | 北京小米移动软件有限公司 | Brightness adjusting method and device of display screen |
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