CN110390911A - The display backlight brightness control method and electronic equipment of a kind of electronic equipment - Google Patents
The display backlight brightness control method and electronic equipment of a kind of electronic equipment Download PDFInfo
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- CN110390911A CN110390911A CN201810356442.8A CN201810356442A CN110390911A CN 110390911 A CN110390911 A CN 110390911A CN 201810356442 A CN201810356442 A CN 201810356442A CN 110390911 A CN110390911 A CN 110390911A
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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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/14—Display of multiple viewports
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The embodiment of the invention provides the luminance control method for display screen of a kind of electronic equipment, electronic equipment includes N number of display screen；The described method includes: determining the display content of each display screen；According to the display content of each display screen, and determine the backlight illumination of each display screen；When at least there is two display screens with different backlight illuminations in N number of display screen, the backlight illumination of at least one display screen in N number of display screen is adjusted, keeps the backlight illumination of N number of display screen identical.The embodiment of the invention also discloses a kind of electronic equipment and computer readable storage medium.
Description
Technical field
The present invention relates to the display backlight brightness control method of multidisplay technology more particularly to a kind of electronic equipment,
Electronic equipment and computer readable storage medium.
Background technique
Currently, mobile phone display technology is increasingly becoming the hot spot of research with the extensive use of smart phone；In current hand
Machine display field, there is only the mobile phones of single display screen, and there is also Dual-band Handy Phone even multi-screen mobile phones；For there are two displays
The mobile phone of screen or more than two display screens, the screen intensity of each display screen is usually inconsistent, for example, in each display screen display
When showing different contents, each display screen generallys use different screen intensity methods of determination, may cause the back of each display screen
Brightness is different；However, demand of the terminal user to each display backlight brightness is usually identical, in this way, above-mentioned is aobvious
Display screen backlight illumination control program cannot be met the needs of users.
Summary of the invention
To solve existing technical problem, the embodiment of the present invention provides the display backlight brightness of a kind of electronic equipment
Control method, electronic equipment and computer readable storage medium can automatically adjust the backlight illumination of each display screen to phase
With value, meets the needs of terminal user.
In order to achieve the above objectives, the technical solution of the embodiment of the present invention is achieved in that
The embodiment of the invention discloses the display backlight brightness control method of a kind of electronic equipment, the electronic equipment packet
N number of display screen is included, N is the natural number greater than 1；The described method includes:
Determine the display content of each display screen；
According to the display content of each display screen, the backlight illumination of each display screen is determined；
When at least there is two display screens with different backlight illuminations in N number of display screen, to N number of display screen
In the backlight illumination of at least one display screen be adjusted, keep the backlight illumination of N number of display screen identical.
In above scheme, the display content according to each display screen determines the backlight illumination of each display screen, packet
It includes:
The input backlight brightness values of each display screen are obtained, the input backlight brightness values of each display screen include input
To the backlight brightness values of each display screen of electronic equipment, or each display determined according to the environmental light intensity of the electronic equipment
The backlight brightness values of screen；
According to the display content of each display screen, the input backlight brightness values of each display screen are modified, are obtained every
The backlight illumination of a display screen.
In above scheme, the input backlight brightness values of N number of display screen are identical.
In above scheme, the backlight illumination at least one display screen in N number of display screen is adjusted, packet
It includes:
The input backlight brightness values of at least one display screen are adjusted, at least one display screen is obtained
Input backlight brightness values adjusted；
According to the display content of at least one display screen, the input adjusted of at least one display screen is carried on the back
Brightness values are modified, and obtain the backlight illumination adjusted of at least one display screen.
In above scheme, after the display content for determining each display screen, the method also includes:
Determine the type of the display content of each display screen；
When the type difference of the display content of at least two display screens in N number of display screen, for display inhomogeneity
The display screen of the display content of type controls (Content Adaptive Brightness using different image adaptability brightness
Control, CABC) scheme control backlight illumination.
In above scheme, the method also includes:
Obtain the remaining capacity of the electronic equipment；
When the remaining capacity of the electronic equipment is lower than power threshold, by the CABC of each display screen of the electronic equipment
Mode be determined as MOVIE mode.
The embodiment of the invention also discloses a kind of electronic equipment, the electronic equipment includes memory, processor and N
A display screen, N are the natural number greater than 1；Wherein,
The memory is for storing computer program；
The processor is for executing the computer program stored in the memory, to perform the steps of
Determine the display content of each display screen；
According to the display content of each display screen, the backlight illumination of each display screen is determined；
When at least there is two display screens with different backlight illuminations in N number of display screen, to N number of display screen
In the backlight illumination of at least one display screen be adjusted, keep the backlight illumination of N number of display screen identical.
In above scheme, the processor is specifically used for executing the computer program stored in the memory, to realize
Following steps:
The input backlight brightness values of each display screen are obtained, the input backlight brightness values of each display screen include input
To the backlight brightness values of each display screen of electronic equipment, or each display determined according to the environmental light intensity of the electronic equipment
The backlight brightness values of screen；
According to the display content of each display screen, the input backlight brightness values of each display screen are modified, are obtained every
The backlight illumination of a display screen.
In above scheme, the processor is specifically used for executing the computer program stored in the memory, to realize
Following steps:
The input backlight brightness values of at least one display screen are adjusted, at least one display screen is obtained
Input backlight brightness values adjusted；
According to the display content of at least one display screen, the input adjusted of at least one display screen is carried on the back
Brightness values are modified, and obtain the backlight illumination adjusted of at least one display screen.
The embodiment of the invention also discloses a kind of computer readable storage mediums, are stored thereon with computer program, the meter
Calculation machine program realizes the step of display backlight brightness control method of any one of the above electronic equipment when being executed by processor.
Display backlight brightness control method, electronic equipment and the calculating of a kind of electronic equipment provided in an embodiment of the present invention
In machine readable storage medium storing program for executing, the display content of each display screen is determined；According to the display content of each display screen, determine each
The backlight illumination of display screen；When at least there is two display screens with different backlight illuminations in each display screen, to each aobvious
The backlight illumination of at least one display screen is adjusted in display screen, keeps the backlight illumination of each display screen identical.
As can be seen that the backlight illumination of each display screen can be adjusted to phase automatically when by adopting the above technical scheme
With value, meet requirement of the user to display backlight brightness uniformity.
Detailed description of the invention
Fig. 1 is a hardware structural diagram of the electronic equipment of the embodiment of the present invention；
Fig. 2 is the flow chart one of the display backlight brightness control method of the electronic equipment of the embodiment of the present invention；
Fig. 3 is the structural representation that the display backlight brightness control of dual-screen electronic device is realized in the embodiment of the present invention
Figure；
Fig. 4 is the flowchart 2 of the display backlight brightness control method of the electronic equipment of the embodiment of the present invention；
Fig. 5 is another hardware structural diagram of the electronic equipment of the embodiment of the present invention.
Specific embodiment
The present invention is further described in detail below with reference to the accompanying drawings and embodiments.It should be appreciated that described herein
Specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention can be applied in the electronic equipment with multiple display screens, and here, electronic equipment can be
The fixed terminals such as computer are also possible to the mobile terminals such as mobile phone, tablet computer, laptop；Display screen can be use
The display screen for the light source that backlight provides, for example, it may be liquid crystal display (Liquid Crystal Display, LCD), LED
(Light Emitting Diode) display screen etc..
Here, the display screen of above-mentioned record can control (Content Adaptive using the brightness of image adaptability
Brightness Control, CABC) mode controls the backlight brightness, and the corresponding CABC mode of display screen can be OFF mode, UI
Mode, STILL mode or MOVING mode.
Fig. 1 is a hardware structural diagram of the electronic equipment of the embodiment of the present invention, as shown in Figure 1, the electronic equipment
It may include the 1st display screen 101 to N display screen 102, which can also include central processing unit (Central
Processing Unit, CPU) 103, first memory 104, sensor 105 and other peripheral hardwares 106 etc..
In practical applications, above-mentioned first memory 104 can be volatile memory (volatile memory), example
Such as random access memory (Random-Access Memory, RAM)；Or nonvolatile memory (non-volatile
Memory), such as read-only memory (Read-Only Memory, ROM), flash memory (flash memory), hard disk
(Hard Disk Drive, HDD) or solid state hard disk (Solid-State Drive, SSD)；Or the memory of mentioned kind
Combination, and instruction and data is provided to CPU.
Here, the type of the sensor 105 is not defined, for example, the sensor 105 can be temperature biography
Sensor, range sensor, acceleration transducer etc., other peripheral hardwares can be the peripheral hardwares such as keyboard, USB flash disk.
When actual implementation, CPU can read the data in memory, or data are written into memory；CPU can be with
Control the working condition of display screen, sensor or other peripheral hardwares.
Based on the electronic equipment of above-mentioned record, following embodiment is proposed.
First embodiment
First embodiment of the invention describes the display backlight brightness control method of a kind of electronic equipment, the electronic equipment
It may include by connecting component N number of display screen interconnected, N is the natural number greater than 1；
Obviously, when N be equal to 2 when, electronic equipment can be dual-screen electronic device, when N be greater than 2 when, electronic equipment be with
Electronic equipments more than two display screens；That is, the embodiment of the present invention is not only suitable for dual-screen electronic device, and it is suitble to two
Electronic equipment more than a display screen.
Fig. 2 is the flow chart one of the display backlight brightness control method of the electronic equipment of the embodiment of the present invention, such as Fig. 2 institute
Show, which may include:
Step 201: determining the display content of each display screen；
In practical application, when processor controls the work of each display screen, the display content number of each display screen can be read
According to, and then determine the display content of each display screen；In one example, using CABC function electronic equipment in, setting by
Content analyser circuit, the content analyser circuit can read and analyze the display content of each display screen, the content analysis
Device circuit can be integrated into a chip and realize, can also be stored in the processor in the form of program.
Step 202: according to the display content of each display screen, determining the backlight illumination of each display screen；
Optionally, a kind of implementation of this step may is that
The input backlight brightness values of each display screen are obtained, the input backlight brightness values of each display screen include input
To the backlight brightness values of each display screen of electronic equipment, or each display determined according to the environmental light intensity of the electronic equipment
The backlight brightness values of screen；
According to the display content of each display screen, the input backlight brightness values of each display screen are modified, are obtained every
The backlight illumination of a display screen.
Here, the input backlight brightness values of display screen may be the same or different；In one example, each display
The input backlight brightness values of screen are the parameters that terminal user directly inputs, at this point, the input backlight brightness values of each display screen
It may be the same or different；In another example, the input backlight brightness values of each display screen are the rings by electronic equipment
What border light intensity determined, if determining the input backlight brightness values of each display screen using identical algorithm, each display screen at this time
Input backlight brightness values be identical.
In practical application, the environmental light intensity of electronic equipment can be collected by ambient light sensor.
Optionally, another implementation of this step may is that
According to the display content of each display screen, and use CABC mode determines the backlight illumination of each display screen.
CABC is a kind of dynamic screen backlight brightness control mode, which can adjust this according to the picture material that screen is shown
Relationship between the grayscale value and screen backlight brightness of image, it is basic to keep while effectively reducing screen backlight brightness
The display effect of image.
In practical application, it can determine that each display screen is corresponding according to the type of the display content of each display screen
The mode of CABC；Here, show that the type of content can be UI picture, still image, dynamic image etc..
It is understood that the mode of the corresponding CABC of each display screen may be the same or different；In an example
In, for dual-screen electronic device, when two display screens show picture, the mode of the corresponding CABC of two display screens is
STILL mode；In another example, for dual-screen electronic device, display screen shows that static images, another is aobvious
Show video, then the mode of the corresponding CABC of a display screen is STILL mode, and the corresponding CABC mode of another display screen is
MOVIE mode.
When actual implementation, each display screen is determined according to the display content of each display screen, and using CABC mode
Backlight illumination may include:
The input backlight brightness values of each display screen are obtained, the input backlight brightness values of each display screen are to be input to electronics
The backlight brightness values of each display screen of equipment are bright according to the backlight of the determining each display screen of the environmental light intensity of electronic equipment
Angle value；
According to the display content of each display screen, and using CABC mode to the input backlight brightness values of each display screen into
Row amendment, obtains the backlight illumination of each display screen.
Optionally, the input backlight brightness values of N number of display screen of above-mentioned record are identical；It is understood that if N number of aobvious
The input backlight brightness values of display screen are identical, but the display content of this N number of display screen is different, then the N obtained according to CABC mode
The backlight illumination of a display screen may be different；In this way, in order to keep the backlight illumination of each display screen identical, it is necessary to root
The backlight illumination of at least one display screen obtained according to CABC mode is adjusted.
In one example, this step can use the realization such as processor；In another example, electronic equipment can wrap
Include the driving chip of each display screen and the backlight chip of each display screen, wherein
The display content of the available each display screen of the driving chip of each display screen and the input of each display screen
Backlight brightness values, and use CABC mode determines the backlight illumination of each display screen；The driving chip of each display screen can be with
The backlight illumination of corresponding display screen is sent to corresponding backlight chip；When actual implementation, the driving chip of each display screen can
Backlight illumination is sent to backlight chip to modulate (Pulse Width Modulation, PWM) signal by pulse width, this
In, pwm signal duty ratio, which can be used, indicates the backlight illumination sent；In one example, the driving chip of each display screen
Can by PWM waveform be transmitted directly to the PWM of backlight chip and adjust foot, and then adjust the backlight illumination of corresponding display screen,
Realize the power consumption control to backlight.Here, the backlight chip of each display screen can drive corresponding according to the signal received
Backlight shine.
Step 203: when at least there is two display screens with different backlight illuminations in N number of display screen, to the N
The backlight illumination of at least one display screen is adjusted in a display screen, keeps the backlight illumination of N number of display screen identical.
Optionally, the mode being adjusted for the backlight illumination at least one display screen in N number of display screen, at one
In example, can the input backlight brightness values at least one display screen be adjusted, obtain at least one described display
The input backlight brightness values adjusted of screen；According to the display content of at least one display screen, at least one is aobvious to described
The input backlight brightness values adjusted of display screen are modified, and the backlight adjusted for obtaining at least one display screen is bright
Degree.
That is, being adjusted by the input backlight brightness values to display screen, the backlight illumination to display screen is realized
Adjustment；It is understood that content according to the above records, after the input backlight brightness values to display screen are adjusted,
The backlight illumination of display screen changes, at this point, the pwm signal that backlight chip generates can occur to change accordingly.
Here, the adjustment amplitude of the input backlight brightness values of display screen is the backlight illumination according to display screen N number of after adjustment
Determining, that is, it is necessary to ensure that the backlight illumination of N number of display screen after the input backlight brightness values of display screen adjust is identical.
Further, if after determining the display content of each display screen, each display is determined using CABC mode
The backlight illumination of screen, the then implementation input backlight brightness values adjusted of at least one display screen being modified
It may is that and the input backlight brightness values adjusted of at least one display screen are modified using CABC.
For adjusting the implementation of the input backlight brightness values of display screen, illustratively, according to display content, use
The mode that CABC mode is modified input backlight brightness values may is that according to display content, determine an amendment ratio value,
The amendment ratio value is between 0 to 1；It is then possible to which input backlight brightness values are obtained display screen multiplied by amendment ratio value
Backlight illumination；When needing the backlight illumination by display screen to adjust to the backlight brightness values of another display screen, due at one section
The display content of display screen remains unchanged in time, thus the corresponding amendment ratio value of the display screen remains unchanged, can basis
Backlight brightness values (i.e. above-mentioned another display screen of the display screen needed after the corresponding amendment ratio value of display screen and adjustment
Backlight brightness values exist), the input backlight brightness values adjusted of display screen are calculated.For example, when initial, the first display screen
Backlight illumination be A, when needing the backlight illumination by the first display screen to adjust to the backlight illumination B of second display screen, first
According to it is initial when the input backlight brightness values C of the first display screen and backlight illumination A of the first display screen, obtain the first display screen pair
Amendment the ratio value R, R=A/C answered；Then have: the input backlight brightness values adjusted of the first display screen are B/R, it is clear that according to
The corresponding amendment ratio value R of input backlight brightness values B/R and the first display screen adjusted of first display screen, can obtain
Out the first display screen backlight illumination adjusted be B/R*R=B, that is to say, that the first display screen backlight illumination adjusted with
The backlight illumination of second display screen is identical.
It, can be by two displays of dual-screen electronic device for dual-screen electronic device in a specific example
Screen is denoted as the first display screen and second display screen respectively；When initial, the input backlight illumination of the first display screen and second display screen
It is worth identical, is 160；First display screen is with the difference of content shown by second display screen, first obtained according to CABC function
The backlight illumination of display screen is 140, and the backlight illumination of the second display screen obtained according to CABC function is 150；Due to basis
The backlight illuminations of two display screens that CABC function obtains is different, at this point it is possible to the first display screen and/or second display screen
Input backlight brightness values are adjusted, and keep the backlight illumination of two display screens obtained according to CABC function identical.
Optionally, at least one display screen in N number of display screen of above-mentioned record are as follows: remove backlight illumination in N number of display screen
Other display screens except minimum display screen, that is to say, that if at least having two in N number of display screen has different backlights
The display screen of brightness only turns down the backlight that other display screens except the minimum display screen of backlight illumination are removed in N number of display screen
Brightness makes the backlight illumination of N number of display screen be equal to the backlight illumination for adjusting the minimum display screen of preceding backlight illumination after making adjustment；
As can be seen that when using this backlight illumination adjustment mode, due to only existing the turn down operation to the backlight illumination of display screen,
The power consumption of display screen can be thus effectively reduced.
It should be noted that then can directly terminate process when the backlight illumination of above-mentioned N number of display screen is identical.
In one example, this step can use the realization such as processor；In another example, this step can use
The driving chip of each display screen of above-mentioned record and the backlight chip of each display screen are realized.
The display screen drive chip of intelligent terminal all supports CABC function, existing CABC function to support 4 currently on the market
Kind of mode, respectively OFF mode, UI mode, STILL mode and MOVING mode, respectively correspond register set it is different
CABC value；Wherein, OFF mode represents the closing of CABC function, and corresponding CABC value is 0；UI mode adaptive is in user interface
It has been shown that, optimization show power consumption when user interface (User Interface, UI) picture, and guarantee picture quality is same as far as possible
When can save 10%~15% power consumption, corresponding CABC value be 1；STILL mode adaptive is in the display of still image, optimization
Show power consumption when static images, under the mode picture quality loss within the acceptable range, while can save 20%~
30% power consumption, corresponding CABC value are 2；MOVIE mode adaptive is when the display optimization of dynamic image shows dynamic picture
Power consumption, power consumption can be reduced to greatest extent under the mode, but the partition losses of picture quality can be brought, 30%+ can be saved
Power consumption, corresponding CABC value be 3.
It, can be by the CABC mode of multiple display screens for the electronic equipment with multiple display screens in actual implementation
It is set as identical CABC mode, for example, the CABC value of two display screens is equal for the intelligent terminal with double-display screen
It is 2, i.e., the CABC mode of two display screens is STILL mode.
As can be seen that may cause the backlight illumination of each display screen if each display screen shows different contents
Difference, and demand of the terminal user to each display backlight brightness is usually identical, in this way, above-mentioned display backlight is bright
Degree control program cannot be met the needs of users.
In view of the above-mentioned problems, in the embodiment of the present invention, in the backlight illumination for determining each display screen using CABC mode
Afterwards, if at least there are two display screens with different backlight illuminations in N number of display screen, can in a display screen at least
The backlight illumination of one display screen is adjusted, and keeps the backlight illumination of N number of display screen identical；So, it is possible automatically will be each aobvious
The backlight illumination of display screen is adjusted to identical value, meets requirement of the user to display backlight brightness uniformity.
Second embodiment
In order to more embody the purpose of the present invention, on the basis of first embodiment of the invention, carry out further
It illustrates.
In second embodiment of the invention, by taking dual-screen electronic device as an example, illustrate the reality of display backlight brightness control method
Existing mode.
Fig. 3 is the structural representation that the display backlight brightness control of dual-screen electronic device is realized in the embodiment of the present invention
Figure, as shown in figure 3, two display screens of dual-screen electronic device are denoted as main screen and vice screen respectively, structure shown in Fig. 3 may include
Main screen driving chip 301, vice screen driving chip 302, main screen backlight chip 303, vice screen backlight chip 304, the first LED backlight
305 and second LED backlight 306；Wherein,
Main screen driving chip 301 and vice screen driving chip 302 obtain respective input backlight brightness values respectively；Main screen driving
The available main screen of chip shows content, and is modified using CABC mode to the backlight brightness values of input, obtains main screen
The backlight illumination of main screen is sent to main screen backlight chip by backlight illumination by way of pwm signal duty ratio；Vice screen drives core
The available vice screen of piece shows content, and is modified using CABC mode to the backlight brightness values of input, obtains the back of vice screen
The backlight illumination of vice screen is sent to vice screen backlight chip by brightness by way of pwm signal duty ratio；
Main screen backlight chip 303 can drive the work of the first LED backlight by signal based on the received, here, the first LED back
Light lamp can provide backlight for main screen；Similarly, vice screen backlight chip 304 but can move the 2nd LED back by signal based on the received
The work of light lamp, here, the second LED backlight can provide backlight for vice screen.
Illustratively, main screen driving chip can be sent in such a way that wireless digital controls signal to main screen backlight chip
Data；Vice screen driving chip can send data to vice screen backlight chip in such a way that wireless digital controls signal；At one
In specific example, the model of main screen backlight chip can be TPS61165, and vice screen backlight chip can be packaged with power management
Integrated circuit (Power Management IC, PMIC).
Here, the input backlight brightness values of main screen and vice screen are identical, it can be seen that in the display of main screen and vice screen
When holding different, the backlight illumination of the main screen and vice screen that are obtained according to CABC mode is different (main screen driving chip and vice screen drive
The pwm signal duty ratio of dynamic chip output has differences), and then will affect user experience.
In view of the above-mentioned problems, the pwm signal duty of main screen driving chip and the output of vice screen driving chip can be read respectively
Than since the high pwm signal of duty ratio can drive LED backlight sending brightness higher after the processing of corresponding backlight chip
Backlight, the low pwm signal of duty ratio by corresponding backlight chip processing after can drive LED backlight issue brightness it is lower
Backlight；Therefore, it is possible to the input backlight brightness values of one of display screen be adjusted, so that the backlight illumination of main screen and vice screen reaches
To consistent；Here, the adjustment mode of the input backlight brightness values of display screen is made an explanation in the first embodiment of the invention,
Which is not described herein again.
It is alternatively possible to which the input backlight brightness values of the corresponding display screen of the pwm signal of duty ratio original text are turned down, in this way may be used
To reduce the power consumption of the display screen of electronic equipment.
Fig. 4 is the flowchart 2 of the display backlight brightness control method of the electronic equipment of the embodiment of the present invention, such as Fig. 4 institute
Show, which may include:
Step 401: obtaining the CABC value and input backlight brightness values of each display screen.
Here, according to the display content of two display screens, the CABC value of the CABC value and vice screen that obtain main screen is 2,
That is the CABC mode of main screen and vice screen is STILL mode.
Main screen is identical with the input backlight brightness values of vice screen, is Bx.
Step 402: the pwm signal duty ratio Xa and vice screen that reading main screen is obtained according to CABC mode are according to the side CABC
The pwm signal duty ratio Xb that formula obtains.
Step 403: judging whether Xa is greater than or equal to Xb, if so, 404 are thened follow the steps, if not, thening follow the steps
405。
Step 404: the input backlight brightness values of main screen are adjusted to (Xb/Xa) * Bx.
Step 405: the input backlight brightness values of vice screen are adjusted to (Xa/Xb) * Bx.
In a specific example, the input backlight brightness values of main screen and vice screen are 255, when initial, according to CABC
The backlight illumination for the main screen that mode obtains is 240 (being actually indicated with pwm signal duty ratio), is obtained according to CABC mode
Vice screen backlight illumination be 250.
It, can input backlight to vice screen according to the display backlight brightness control method of the electronic equipment of above-described embodiment
Brightness value is modified, and the input backlight brightness values of vice screen are modified to 240* (255/250), in this way, the input to vice screen is carried on the back
After brightness values amendment, the backlight of the backlight illumination of the vice screen obtained according to CABC mode and the main screen obtained according to CABC mode
Brightness is identical, is 240.
That is, in the embodiment of the present invention, on the basis for the backlight illumination for obtaining each display screen in the way of CABC
On, the input backlight brightness values of display screen can be adjusted by feedback algorithm, be that the PWM for obtaining numerical value to each backlight chip believes
Number duty ratio is consistent, the inconsistent influence of the backlight illumination so as to eliminate each display screen of CABC bring.
3rd embodiment
In third embodiment of the invention, the display content of each display screen can be determined first；Then, it is determined that each display
The type of the display content of screen；When the type difference of the display content of at least two display screens in N number of display screen, for aobvious
The display screen for showing different types of display content, using the scheme control backlight illumination of different CABC.
Here, the display content type of display screen may include the interface UI, still image, dynamic image etc..
Illustratively illustrate the realization side of third embodiment of the invention by taking the dual-screen electronic device of above-mentioned record as an example below
Formula.
In one example, for different application scenarios, the main screen of dual-screen electronic device and the display content class of vice screen
When type difference, different CABC values can be used；When dual-screen electronic device is in child mode, animation etc. can be shown in main screen
Video content, to attract the sight for the children that are taken；Meanwhile shooting preview interface is shown in vice screen；At this point, showing due to main screen
Showing that content is not is terminal user's direct viewing, can be MOVIE mode by the CABC mode setting of main screen, and by vice screen
CABC mode setting is STILL mode.
In another example, when dual-screen electronic device is in game mode, virtual key, vice screen can be shown using main screen
Show interface；For the interface that vice screen is shown, the virtual key that can be shown using main screen is operated, that is,
It says, main screen can be used as game paddle, and when main screen is as game paddle, does not need main screen and realize very high display effect, this
When, it can be MOVIE mode by the CABC mode setting of main screen, to reduce the power consumption of main screen.
As can be seen that different CABC modes, In can be set for different display contents in Multi-screen electronic equipment
Under the scene for not influencing user experience, the effect for reducing power consumption may be implemented.
Optionally, different CABC modes can also be set for different scenes (display picture) under single screen mode,
The value of CABC is arranged higher, and power consumption decline is bigger, but can bring the decline of some display effects, so needing to be used in combination
The setting of scene progress CABC value；It is of less demanding for display effect for example, for the display screen as game paddle, it can be with
2 are set by the CABC value of display screen where game paddle, has reached the purpose for reducing display screen power consumption.
It should be noted that can be used when the type of the display content of N number of display screen is identical for N number of display screen
The scheme control backlight illumination of the CABC of model identical.
Third embodiment of the invention can be using the realization such as processor, can also be based on each display screen of above-mentioned record
The backlight chip of driving chip and each display screen is realized.
Fourth embodiment
In fourth embodiment of the invention, the remaining capacity of electronic equipment can be obtained first by the processor of electronic equipment,
It then, can be by each display of electronic equipment when above-mentioned processor determines the remaining capacity of electronic equipment lower than power threshold
The CABC mode setting of screen is MOVIE mode, to reduce the power consumption of display screen.
Here, power threshold can be preset with actual demand, for example, when remaining capacity is presented with percents, electricity
Measuring threshold value can be between 10% to 30%, optionally, power threshold 20%.
5th embodiment
For the luminance control method for display screen of the electronic equipment of present invention, fifth embodiment of the invention is mentioned
A kind of electronic equipment is gone out.
Fig. 5 is another hardware structural diagram of the electronic equipment of the embodiment of the present invention, as shown in figure 5, the electronics is set
Standby may include second memory 501, processor 502 and N number of display screen 503, and N is the natural number greater than 1；Wherein,
The second memory 501 is for storing computer program；
The processor 502 is for executing the computer program stored in the memory, to perform the steps of
Determine the display content of each display screen；
According to the display content of each display screen, the backlight illumination of each display screen is determined；
When at least there is two display screens with different backlight illuminations in N number of display screen, to N number of display screen
In the backlight illumination of at least one display screen be adjusted, keep the backlight illumination of N number of display screen identical.
In practical applications, above-mentioned second memory 501 can be volatile memory, such as RAM；Or it is non-volatile
Memory, such as ROM, flash memory, HDD or solid-state hard disk SSD；Or the combination of the memory of mentioned kind, and to place
It manages device 502 and instruction and data is provided.
Above-mentioned processor 502 can be application-specific IC (Application Specific Integrated
Circuit, ASIC), digital signal processor (Digital Signal Processor, DSP), digital signal processing device
(Digital Signal Processing Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field Programmable Gate Array, FPGA), CPU, controller,
At least one of microcontroller, microprocessor.It is to be appreciated that for different equipment, for realizing above-mentioned processor function
Can electronic device can also be to be other, the embodiment of the present invention is not especially limited.
Illustratively, the processor 502 is specifically used for executing the computer program stored in the memory, realize with
Lower step:
The input backlight brightness values of each display screen are obtained, the input backlight brightness values of each display screen include input
To the backlight brightness values of each display screen of electronic equipment, or each display determined according to the environmental light intensity of the electronic equipment
The backlight brightness values of screen；
According to the display content of each display screen, the input backlight brightness values of each display screen are modified, are obtained every
The backlight illumination of a display screen.
Illustratively, the input backlight brightness values of N number of display screen are identical.
Illustratively, the processor 502 is specifically used for executing the computer program stored in the memory, realize with
Lower step:
The input backlight brightness values of at least one display screen are adjusted, at least one display screen is obtained
Input backlight brightness values adjusted；
According to the display content of at least one display screen, the input adjusted of at least one display screen is carried on the back
Brightness values are modified, and obtain the backlight illumination adjusted of at least one display screen.
Illustratively, the processor 502 is specifically used for executing the computer program stored in the memory, realize with
Lower step:
After the display content for determining each display screen, the type of the display content of each display screen is determined；
When the type difference of the display content of at least two display screens in N number of display screen, for display inhomogeneity
The display screen of the display content of type, using the scheme control backlight illumination of different CABC.
Illustratively, the processor 502 is also used to execute the computer program stored in the memory, realizes following
Step:
Obtain the remaining capacity of the electronic equipment；
When the remaining capacity of the electronic equipment is lower than power threshold, by the CABC of each display screen of the electronic equipment
Mode be determined as MOVIE mode.
Sixth embodiment
Sixth embodiment of the invention proposes a kind of computer readable storage medium, specifically, one in the present embodiment
The corresponding computer program instructions of display backlight brightness control method of kind electronic equipment can be stored in CD, hard disk, U
On the storage mediums such as disk, when the calculating corresponding with the display backlight brightness control method of a kind of electronic equipment in storage medium
Machine program instruction is read or is performed by an electronic equipment, realizes the display screen of any one electronic equipment of previous embodiment
The step of backlight brightness control method.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. the display backlight brightness control method of a kind of electronic equipment, which is characterized in that the electronic equipment includes N number of display
Screen, N are the natural number greater than 1；The described method includes:
Determine the display content of each display screen；
According to the display content of each display screen, the backlight illumination of each display screen is determined；
When at least there is two display screens with different backlight illuminations in N number of display screen, in N number of display screen extremely
The backlight illumination of a few display screen is adjusted, and keeps the backlight illumination of N number of display screen identical.
2. the method according to claim 1, wherein the display content according to each display screen, is determined
The backlight illumination of each display screen, comprising:
The input backlight brightness values of each display screen are obtained, the input backlight brightness values of each display screen include being input to electricity
The backlight brightness values of each display screen of sub- equipment, or according to the determining each display screen of the environmental light intensity of the electronic equipment
Backlight brightness values；
According to the display content of each display screen, the input backlight brightness values of each display screen are modified, are obtained each aobvious
The backlight illumination of display screen.
3. according to the method described in claim 2, it is characterized in that, the input backlight brightness values of N number of display screen are identical.
4. according to the method described in claim 2, it is characterized in that, described at least one display screen in N number of display screen
Backlight illumination be adjusted, comprising:
The input backlight brightness values of at least one display screen are adjusted, the adjustment of at least one display screen is obtained
Input backlight brightness values afterwards；
It is bright to the input backlight adjusted of at least one display screen according to the display content of at least one display screen
Angle value is modified, and obtains the backlight illumination adjusted of at least one display screen.
5. the method according to claim 1, wherein after determining the display content of each display screen, the method
Further include:
Determine the type of the display content of each display screen；
It is different types of for showing when the type difference of the display content of at least two display screens in N number of display screen
The display screen for showing content, using the scheme control backlight illumination of different image adaptability brightness control CABC.
6. the method according to claim 1, wherein the method also includes:
Obtain the remaining capacity of the electronic equipment；
When the remaining capacity of the electronic equipment is lower than power threshold, by the mould of the CABC of each display screen of the electronic equipment
Formula is determined as MOVIE mode.
7. a kind of electronic equipment, which is characterized in that the electronic equipment includes that memory, processor and N number of display screen, N are
Natural number greater than 1；Wherein,
The memory is for storing computer program；
The processor is for executing the computer program stored in the memory, to perform the steps of
Determine the display content of each display screen；
According to the display content of each display screen, the backlight illumination of each display screen is determined；
When at least there is two display screens with different backlight illuminations in N number of display screen, in N number of display screen extremely
The backlight illumination of a few display screen is adjusted, and keeps the backlight illumination of N number of display screen identical.
8. electronic equipment according to claim 7, which is characterized in that the processor is specifically used for executing the memory
The computer program of middle storage, to perform the steps of
The input backlight brightness values of each display screen are obtained, the input backlight brightness values of each display screen include being input to electricity
The backlight brightness values of each display screen of sub- equipment, or according to the determining each display screen of the environmental light intensity of the electronic equipment
Backlight brightness values；
According to the display content of each display screen, the input backlight brightness values of each display screen are modified, are obtained each aobvious
The backlight illumination of display screen.
9. electronic equipment according to claim 8, which is characterized in that the processor is specifically used for executing the memory
The computer program of middle storage, to perform the steps of
The input backlight brightness values of at least one display screen are adjusted, the adjustment of at least one display screen is obtained
Input backlight brightness values afterwards；
It is bright to the input backlight adjusted of at least one display screen according to the display content of at least one display screen
Angle value is modified, and obtains the backlight illumination adjusted of at least one display screen.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The step of processor realizes method as claimed in any one of claims 1 to 6 when executing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810356442.8A CN110390911B (en) | 2018-04-19 | 2018-04-19 | Display screen backlight brightness control method of electronic equipment and electronic equipment |
| PCT/CN2019/076938 WO2019201021A1 (en) | 2018-04-19 | 2019-03-05 | Display screen backlight luminance control method for electronic device, and electronic device |
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| CN201810356442.8A CN110390911B (en) | 2018-04-19 | 2018-04-19 | Display screen backlight brightness control method of electronic equipment and electronic equipment |
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| CN110970001B (en) * | 2019-12-03 | 2021-07-20 | Oppo广东移动通信有限公司 | Screen brightness adjusting method and device, electronic equipment and computer storage medium |
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Also Published As
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| CN110390911B (en) | 2022-03-25 |
| WO2019201021A1 (en) | 2019-10-24 |
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