CN109102779A - backlight adjusting method and device - Google Patents
backlight adjusting method and device Download PDFInfo
- Publication number
- CN109102779A CN109102779A CN201810967842.2A CN201810967842A CN109102779A CN 109102779 A CN109102779 A CN 109102779A CN 201810967842 A CN201810967842 A CN 201810967842A CN 109102779 A CN109102779 A CN 109102779A
- Authority
- CN
- China
- Prior art keywords
- picture
- backlight
- luminance
- value
- backlight value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
-
- 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
Abstract
The disclosure is directed to backlight adjusting method and devices.This method comprises: obtaining the luminance information of picture to be shown；According to the luminance information, the picture to be shown is counted in the number of pixels in each predetermined luminance region；Number of pixels luminance factor corresponding with each predetermined luminance region prestored according to the picture to be shown in each predetermined luminance region, determines the luminance factor average value of the picture to be shown；According to the luminance factor average value of the picture to be shown and preset backlight value curve, the corresponding backlight value of the picture to be shown is determined, the backlight value curve includes the homologous thread between luminance factor average value and backlight value.The technical solution can set different backlight values for the picture of Luminance Distributions different under same APL, more flexible to the backlight control of picture more accurate.
Description
Technical field
This disclosure relates to field of display technology more particularly to backlight adjusting method and device.
Background technique
Television set, computer or other display equipment display screen mostly be transmission-type liquid crystal display, the brightness of the liquid crystal display of transmission-type
It is to be determined by the light transmission rate of back light system and liquid crystal display panel, but since the light transmission rate of liquid crystal display panel is lower, generally
For 6%-8%, and it is more stable, so the brightness regulation of the liquid crystal display of transmission-type is mainly controlled to adjust by back light system.
User in actual use, the backlight of display screen is brighter, and the display effect of picture can be the bright bright-coloured, but such as
Fruit backlight is constantly in most bright state, and viewing time, which has been grown, be easy to cause human eye tired, at the same power consumption be constantly in it is higher
State is not environmentally friendly enough, it is therefore desirable to according to display picture come the brightness of dynamic regulation backlight.
Summary of the invention
The embodiment of the present disclosure provides backlight adjusting method and device.The technical solution is as follows:
According to the first aspect of the embodiments of the present disclosure, a kind of backlight adjusting method is provided, comprising:
Obtain the luminance information of picture to be shown；
According to the luminance information, the picture to be shown is counted in the number of pixels in each predetermined luminance region；
According to the picture to be shown in the number of pixels in each predetermined luminance region and each predetermined luminance region pair prestored
The luminance factor answered determines the luminance factor average value of the picture to be shown；
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture to be shown is determined
The corresponding backlight value in face, the backlight value curve include the homologous thread between luminance factor average value and backlight value.
In one embodiment, described in the number of pixels in each predetermined luminance region and to be prestored according to the picture to be shown
The corresponding luminance factor in each predetermined luminance region, determine the luminance factor average value of the picture to be shown, comprising:
The luminance factor average value L of the picture to be shown is calculated according to following formulacal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is i-th
The corresponding luminance factor in predetermined luminance region, 0≤ki≤ 255, niIt is the picture to be shown in i-th predetermined luminance region
Number of pixels.
In one embodiment, described bent according to the luminance factor average value of the picture to be shown and preset backlight value
Line determines the corresponding backlight value of the picture to be shown, comprising:
The corresponding backlight value BL of the picture to be shown is calculated according to following formulacal:
BLcal=BLj+(BLj+1-BLj)·(Lcal–j)
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
In one embodiment, described bent according to the luminance factor average value of the picture to be shown and preset backlight value
Line determines the corresponding backlight value of the picture to be shown, comprising:
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture to be shown is determined
The corresponding pretreatment backlight value in face；
It obtains backlight and adjusts ratio；
Ratio is adjusted according to the corresponding pretreatment backlight value of picture to be shown and the backlight, is determined described to be shown
The corresponding backlight value of picture.
In one embodiment, the method also includes:
When showing the picture to be shown, by previous frame show picture backlight value gradually adjust according to preset step-length to
The corresponding backlight value of the picture to be shown.
According to the second aspect of an embodiment of the present disclosure, a kind of backlight regulating device is provided, comprising:
First obtains module, for obtaining the luminance information of picture to be shown；
Statistical module, for counting the picture to be shown in the picture in each predetermined luminance region according to the luminance information
Plain number；
First determining module, in the number of pixels in each predetermined luminance region and being prestored according to the picture to be shown
The corresponding luminance factor in each predetermined luminance region, determines the luminance factor average value of the picture to be shown；
Second determining module, for bent according to the luminance factor average value of the picture to be shown and preset backlight value
Line, determines the corresponding backlight value of the picture to be shown, the backlight value curve include luminance factor average value and backlight value it
Between homologous thread.
In one embodiment, first determining module includes:
First computational submodule, for calculating the luminance factor average value L of the picture to be shown according to following formulacal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is i-th
The corresponding luminance factor in predetermined luminance region, 0≤ki≤ 255, niIt is the picture to be shown in i-th predetermined luminance region
Number of pixels.
In one embodiment, second determining module includes:
Second computational submodule, for calculating the corresponding backlight value BL of the picture to be shown according to following formulacal:
BLcal=BLj+(BLj+1-BLj)·(Lcal–j)
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
In one embodiment, second determining module includes:
First determines submodule, for bent according to the luminance factor average value of the picture to be shown and preset backlight value
Line determines the corresponding pretreatment backlight value of the picture to be shown；
Acquisition submodule, for obtaining backlight adjustment ratio；
Second determines submodule, for being adjusted according to the corresponding pretreatment backlight value of picture to be shown and the backlight
Ratio determines the corresponding backlight value of the picture to be shown.
In one embodiment, described device further include:
Module is adjusted, for showing the backlight value of picture according to default previous frame when showing the picture to be shown
Step-length gradually adjusts backlight value corresponding to the picture to be shown.
According to the third aspect of an embodiment of the present disclosure, a kind of backlight regulating device is provided, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Obtain the luminance information of picture to be shown；
According to the luminance information, the picture to be shown is counted in the number of pixels in each predetermined luminance region；
According to the picture to be shown in the number of pixels in each predetermined luminance region and each predetermined luminance region pair prestored
The luminance factor answered determines the luminance factor average value of the picture to be shown；
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture to be shown is determined
The corresponding backlight value in face, the backlight value curve include the homologous thread between luminance factor average value and backlight value.
According to a fourth aspect of embodiments of the present disclosure, a kind of computer readable storage medium is provided, computer is stored with and refers to
It enables, the step in the above method is realized when the computer instruction is executed by processor.
The technical scheme provided by this disclosed embodiment can include the following benefits: the present embodiment is available to aobvious
Show the luminance information of picture；According to the luminance information, the picture to be shown is counted in the pixel in each predetermined luminance region
Number；It is corresponding bright in the number of pixels in each predetermined luminance region and each predetermined luminance region prestored according to the picture to be shown
Coefficient is spent, determines the luminance factor average value of the picture to be shown；According to the luminance factor average value of the picture to be shown
With preset backlight value curve, the corresponding backlight value of the picture to be shown is determined, the backlight value curve includes luminance factor
Homologous thread between average value and backlight value.In this way, for one predetermined luminance coefficient of the corresponding setting in each predetermined luminance region,
So as to be obtained under the picture of the different Luminance Distributions of same APL (Average Picture Level, picture average brightness)
Different luminance factor average value, and then obtain the corresponding different backlight values of different luminance factor average value, thus can be with
Picture for Luminance Distributions different under same APL sets different backlight values, more flexible to the backlight control of picture more accurate.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of flow chart of backlight adjusting method shown according to an exemplary embodiment.
Fig. 2 is a kind of luminance factor histogram shown according to an exemplary embodiment.
Fig. 3 is a kind of backlight value curve synoptic diagram shown according to an exemplary embodiment.
Fig. 4 is a kind of flow chart of backlight adjusting method shown according to an exemplary embodiment.
Fig. 5 is a kind of block diagram of backlight regulating device shown according to an exemplary embodiment.
Fig. 6 is a kind of block diagram of backlight regulating device shown according to an exemplary embodiment.
Fig. 7 is a kind of block diagram of backlight regulating device shown according to an exemplary embodiment.
Fig. 8 is a kind of block diagram of backlight regulating device shown according to an exemplary embodiment.
Fig. 9 is a kind of block diagram of backlight regulating device shown according to an exemplary embodiment.
Figure 10 is a kind of block diagram of backlight regulating device shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Currently, the adjusting of backlight illumination is mostly average brightness APL (the Average Picture based on display picture
Level, picture average brightness), such as variation with APL from 0% to 100%, backlight linear change from 1 to 100, i.e. APL are
When 0%, backlight value 1, when APL is 50%, backlight value 50, when APL is 100%, backlight value 100.This will result in greatly
Amount Luminance Distribution is that different picture has same APL, all uses the backlight of same brightness, necessarily will cause certain pictures
Poor display effect.
The present embodiment to solve the above-mentioned problems, the luminance information of the available picture to be shown of the present embodiment；According to institute
Luminance information is stated, counts the picture to be shown in the number of pixels in each predetermined luminance region；Existed according to the picture to be shown
The corresponding predetermined luminance coefficient of the number of pixels in each predetermined luminance region and each predetermined luminance region, determines the picture to be shown
Luminance factor average value；According to the luminance factor average value of the picture to be shown and preset backlight value curve, institute is determined
The corresponding backlight value of picture to be shown is stated, the backlight value curve includes corresponding bent between luminance factor average value and backlight value
Line.In this way, for one predetermined luminance coefficient of the corresponding setting in each predetermined luminance region, so as in same APL (Average
Picture Level, picture average brightness) different Luminance Distribution picture under obtain different luminance factor average value, in turn
The corresponding different backlight values of different luminance factor average value are obtained, can be thus Luminance Distributions different under same APL
Picture sets different backlight values, more flexible to the backlight control of picture more accurate.
Fig. 1 is a kind of flow chart of backlight adjusting method shown according to an exemplary embodiment, as shown in Figure 1, the back
Light regulation method is for including the following steps 101-104 in terminal:
In a step 101, the luminance information of picture to be shown is obtained.
In a step 102, according to the luminance information, the picture to be shown is counted in the pixel in each predetermined luminance region
Number.
In step 103, it in the number of pixels in each predetermined luminance region and is prestored each pre- according to the picture to be shown
If the corresponding luminance factor of luminance area determines the luminance factor average value of the picture to be shown.
At step 104, it according to the luminance factor average value of the picture to be shown and preset backlight value curve, determines
The corresponding backlight value of the picture to be shown, the backlight value curve includes corresponding between luminance factor average value and backlight value
Curve.
Here, terminal such as television set etc. is playing video, picture or is showing in UI (User Interface, user interface)
In the case where showing picture, terminal can first get the image information of picture to be shown, then just will do it some display processing,
According to the image information of the picture to be shown, the display picture, display processing include determining picture to be shown on the screen of terminal
The corresponding backlight value in face, in this way, terminal can use the corresponding backlight of the picture to be shown when showing the picture to be shown
Value.
It here, include the luminance information of the picture to be shown in the image information for the picture to be shown that terminal is got, it should
Luminance information includes the brightness value of each pixel in the picture to be shown, and the value range of pixel brightness value is completely black to be 0~255
0, entirely white is 255.
Here, terminal can mark off N number of luminance area as predetermined luminance area according to the range of luminance values of 0-255 in advance
Domain can such as be divided into N number of luminance area, and then, terminal, which can count, obtains the picture to be shown in each predetermined luminance area
The number of pixels in domain.
Here, terminal can be arranged a luminance factor in advance for each predetermined luminance region and be stored away in advance as can be
Corresponding luminance factor is set as 0 when the brightness value in predetermined luminance region is mid-range value, bright compared with the mid-range value
The luminance factor in the bigger predetermined luminance region of angle value is bigger, and the luminance factor in the smaller predetermined luminance region of brightness value is also got over
Greatly.Exemplary, Fig. 2 is a kind of luminance factor histogram shown according to an exemplary embodiment, and horizontal axis is brightness value, and the longitudinal axis is
Luminance factor, as shown in Fig. 2, terminal can will be divided into 64 predetermined luminance regions according to the range of luminance values of 0-255, this 64
The corresponding luminance factor of a predeterminable area can be (5,3,1,0,0,0,1,1,1,1,1,1,1,2,2,2,2,2,3,3,3,3,3,
4,4,4,4,4,4,5,5,5,5,5,6,6,6,6,6,7,7,7,7,7,8,8,8,8,8,9,9,9,9,9,9,9,10,10,10,
10,10,10,10,10).
Here, terminal can be by the number of pixels in each predetermined luminance region multiplied by the corresponding brightness system in each predetermined luminance region
It is averaged after number, obtains the luminance factor average value of the picture to be shown, then, according to bright in preset backlight value curve
The corresponding relationship between coefficient average value and backlight value is spent, the corresponding backlight value of the picture to be shown is obtained.The backlight value is bent
Line can be after developer sets the corresponding predetermined luminance coefficient of each predeterminable area, after many experiments, constantly adjustment,
The backlight value curve for the display effect that the suitable most of user obtained needs, the backlight value curve that different display effects obtains
It is different.
Here, after terminal determines the corresponding backlight value of the picture to be shown, so that it may, will when showing the picture to be shown
The backlight value of the terminal is adjusted to the corresponding backlight value of the picture to be shown.
The luminance information of the available picture to be shown of the present embodiment；According to the luminance information, count described to be shown
Number of pixels of the picture in each predetermined luminance region；According to the picture to be shown each predetermined luminance region number of pixels and
The corresponding predetermined luminance coefficient in each predetermined luminance region, determines the luminance factor average value of the picture to be shown；According to described
The luminance factor average value of picture to be shown and preset backlight value curve determine the corresponding backlight value of the picture to be shown,
The backlight value curve includes the homologous thread between luminance factor average value and backlight value.In this way, being each predetermined luminance area
One predetermined luminance coefficient of the corresponding setting in domain, it is different bright so as to be obtained under the picture of same APL difference Luminance Distribution
Coefficient average value is spent, and then obtains the corresponding different backlight values of different luminance factor average value, thus can be same APL
The picture of lower difference Luminance Distribution sets different backlight values, more flexible to the backlight control of picture more accurate.
In a kind of possible embodiment, following step can be implemented as in step 103 in above-mentioned backlight adjusting method
Rapid A1.
In step A1, the luminance factor average value L of the picture to be shown is calculated according to following formulacal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is i-th
The corresponding luminance factor in predetermined luminance region, 0≤ki≤ 255, niIt is the picture to be shown in i-th predetermined luminance region
Number of pixels.
Here, still according to example shown in Fig. 2, the corresponding luminance factor k of 64,64 predeterminable areas of NiAs shown in Figure 2,
Then picture 1 and picture 2 are the picture that APL is 20%.The black matrix white window that picture 1 is 1920 × 1080, white window accounting are
20%.The grayscale image that the brightness value that picture 2 is 1920 × 1080 is 51.
The luminance factor average value L of frame out 1 can be calculated according to above-mentioned formulacal1:
The luminance factor average value L of frame out 2 can be calculated according to above-mentioned formulacal2:
By above-mentioned example it is found that picture 1 and picture 2 that same APL is 20%, since Luminance Distribution difference obtains brightness system
Number average value is also different.
The present embodiment can calculate luminance factor average value according to respective formula, so can be in same APL difference brightness
Different luminance factor average value is obtained under the picture of distribution, and then obtains the corresponding different back of different luminance factor average value
Light value thus can set different backlight values for the picture of Luminance Distributions different under same APL, to the backlight control of picture
It is more flexible more accurate.
In a kind of possible embodiment, following step can be implemented as in step 104 in above-mentioned backlight adjusting method
Rapid B1.
In step bl is determined, the corresponding backlight value BL of the picture to be shown is calculated according to following formulacal:
BLcal=BLj+(BLj+1-BLj)·(Lcal- j) formula 2
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
Here, developer can determine great amount of samples picture according to the corresponding predetermined luminance coefficient in each predetermined luminance region
Corresponding luminance factor average value, the value range of the luminance factor average value are 0 to k, k kiMaximum value, the value model of k
Enclosing is 0 to 255, the value range first can be divided into k+1 point, each point respectively corresponds a backlight value, according to formula 2
It determines the corresponding backlight value of sample picture, each is constantly adjusted according to finally determining backlight value and puts corresponding backlight
Value can determine that each final point is right respectively until the display effect of these sample pictures reaches the requirement of developer
The backlight value BL answeredj, later, terminal can calculate the corresponding backlight value BL of picture to be shown according to formula 2cal。
Here, Fig. 3 is a kind of backlight value curve synoptic diagram shown according to an exemplary embodiment, and horizontal axis is brightness system
Number, the longitudinal axis is backlight value；Still with example shown in Fig. 2, developer can be corresponding according to each predetermined luminance region shown in Fig. 2
Predetermined luminance coefficient determines the corresponding luminance factor average value of great amount of samples picture, luminance factor average value LcalValue model
Enclosing is 0 to 10, the value range first can be divided into 0,1 ..., 9,10 this 11 points, each pair of point answers a backlight value
BLj*, the corresponding backlight value of sample picture is determined according to formula 2, each is constantly adjusted according to finally determining backlight value
The corresponding backlight value of point can determine final until the display effect of these sample pictures reaches the requirement of developer
Each puts corresponding backlight value BLjFor (30,42,58,76,100,132,178,200,208,216,220), terminal can
To obtain backlight value curve shown in Fig. 3 according to formula 2.Still be illustrated by taking picture 1 and picture 2 as an example, then according to formula 2,
With backlight value curve shown in Fig. 3, the corresponding backlight value of picture 1 is BLcal1=178+ (200-178) × (6- [6])=178；
The corresponding backlight value of picture 2 is BLcal2=42+ (58-42) × (1- [1])=42.
There is above-mentioned example it is found that two different pictures i.e. picture 1 and picture 2, picture 1 for the above same APL include
High brightness accounting conversation structure 2 it is much larger, according to above-mentioned formula 1 and the backlight value conversation structure 2 of the calculated picture 1 of formula 2
Backlight value is much larger, to obtain stronger contrast, user's viewing experience is more preferable.
The present embodiment can determine that the corresponding backlight value of picture to be shown, method of determination are efficient and convenient according to formula 2.
In a kind of possible embodiment, following step can be implemented as in step 104 in above-mentioned backlight adjusting method
Rapid C1 to C3.
In step C1, according to the luminance factor average value of the picture to be shown and preset backlight value curve, determine
The corresponding pretreatment backlight value of the picture to be shown.
In step C2, obtains backlight and adjust ratio.
In step C3, ratio is adjusted according to the corresponding pretreatment backlight value of picture to be shown and preset backlight,
Determine the corresponding backlight value of the picture to be shown.
Here, different users has different backlight illumination demands, and terminal can be adjusted in one backlight of UI Preferences
The input frame of ratio, it is exemplary, it can show that OSD (On Screen Display, screen are shown) can be set in the input frame
Maximum backlight mapping value BLuimSuch as 100, user inputs the OSD backlight mapping value BL currently set in the input frameuiSuch as 90,
Then backlight adjustment ratio is p%=BLui/BLuim。
Here, terminal can calculate the corresponding final backlight value BL of the picture to be shown according to following formulaf:
BLf=[BLcal× p%] formula 3
Wherein, the BLcalFor the corresponding backlight value of the picture to be shown, the p% is that preset backlight adjusts ratio
Example.In practical applications, backlight value BLfIt needs for an integer, therefore can be by BLcalThe value of × p% is rounded.
Here, terminal, all can be according to the backlight of user's input after the pretreatment backlight value for determining each picture to be shown
Adjustment ratio determines the corresponding final backlight value of picture to be shown, so that the backlight illumination used when terminal display is full
Sufficient user requires.
Still taking the above example as an example, then can calculate the corresponding pretreatment backlight value of frame out 1 is BLcal1=178+
(200-178) × (6- [6])=178；The corresponding pretreatment backlight value of picture 2 is BLcal2=42+ (58-42) × (1- [1])=
42.Assuming that BLuim=100, BLui=90, then the corresponding backlight value of picture 1Picture 2 is corresponding
Backlight value is
The available backlight of the present embodiment adjusts ratio, in this way in the luminance factor average value according to the picture to be shown
With preset backlight value curve, after determining the corresponding pretreatment backlight value of the picture to be shown, so that it may according to described to aobvious
Show the corresponding pretreatment backlight value of picture and backlight adjustment ratio, determines the corresponding backlight value of the picture to be shown, such as
Different backlight adjustment ratios can be arranged according to the demand of different user to adjust backlight in this, meet the different need of different user
It asks.
In a kind of possible embodiment, above-mentioned backlight adjusting method can also include the following steps D1.
In step D1, when showing the picture to be shown, show the backlight value of picture according to default step previous frame
It is long gradually to adjust backlight value corresponding to the picture to be shown.
Here, terminal needs the backlight value of terminal showing picture pair from previous frame when showing certain frame picture to be shown
The backlight value answered is adjusted to the corresponding backlight value of the picture to be shown, still, if previous frame shows the backlight value such as 200 of picture
When difference between the backlight value such as 50 of this frame picture to be shown is larger, backlight value is directly adjusted to 50 from 200 by terminal, is drawn
It face can be because the jump of backlight causes scintillation；Therefore the present embodiment is to allow the bright dark variation more smooth flow of picture, it can
A gradual change is done between the backlight value such as 200 of picture and the backlight value such as 50 of this frame picture to be shown to show in previous frame, with
Preset step-length such as 3 or 5 etc. gradually changes.It is exemplary, it is assumed that preset step-length 5, terminal need backlight value being adjusted to 50 from 200
When, 50 gradually so can be adjusted to from 200 by backlight value from 200-195-190 ... 60-55-50, allow the bright dark change of picture
Change smooth flow, user's viewing effect is more preferable.
Previous frame can be shown the backlight value of picture according to default step by the present embodiment when showing the picture to be shown
It is long gradually to adjust backlight value corresponding to the picture to be shown, so that the bright dark variation of terminal display is more smooth
Smoothness, user's viewing effect are more preferable.
Realization process is discussed in detail below by several embodiments.
Fig. 4 is a kind of flow chart of backlight adjusting method shown according to an exemplary embodiment, as shown in figure 4, the back
Light regulation method can be realized by terminal devices such as television sets, including step 401-407.
In step 401, the luminance information of picture to be shown is obtained.
In step 402, according to the luminance information, the picture to be shown is counted in the pixel in each predetermined luminance region
Number.
In step 403, the luminance factor average value of the picture to be shown is calculated according to formula 1:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is i-th
The corresponding luminance factor in predetermined luminance region, 0≤ki≤ 255, niIt is the picture to be shown in i-th predetermined luminance region
Number of pixels.
In step 404, it according to the luminance factor average value of the picture to be shown and preset backlight value curve, determines
The corresponding pretreatment backlight value of the picture to be shown.
In step 405, it obtains backlight and adjusts ratio.
In a step 406, ratio is adjusted according to the corresponding pretreatment backlight value of picture to be shown and the backlight, really
Determine the corresponding backlight value of the picture to be shown.
In step 407, when showing the picture to be shown, show the backlight value of picture according to default step previous frame
It is long gradually to adjust backlight value corresponding to the picture to be shown.
Following is embodiment of the present disclosure, can be used for executing embodiments of the present disclosure.
Fig. 5 is a kind of block diagram of backlight regulating device shown according to an exemplary embodiment, which can be by soft
Part, hardware or both are implemented in combination with as some or all of of electronic equipment.As shown in figure 5, the backlight regulating device
Include:
First obtains module 501, for obtaining the luminance information of picture to be shown；
Statistical module 502, for counting the picture to be shown in each predetermined luminance region according to the luminance information
Number of pixels；
First determining module 503, for according to the picture to be shown in the number of pixels in each predetermined luminance region and pre-
The corresponding luminance factor in each predetermined luminance region deposited, determines the luminance factor average value of the picture to be shown；
Second determining module 504, for according to the picture to be shown luminance factor average value and preset backlight value
Curve, determines the corresponding backlight value of the picture to be shown, and the backlight value curve includes luminance factor average value and backlight value
Between homologous thread.
As a kind of possible embodiment, Fig. 6 is a kind of backlight regulating device shown according to an exemplary embodiment
Block diagram, as shown in fig. 6, backlight regulating device disclosed above can also be configured to the first determining module 503 to include the first meter
Operator module 5031, in which:
First computational submodule 5031, for calculating the luminance factor average value of the picture to be shown according to following formula
Lcal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is i-th
The corresponding predetermined luminance coefficient in predetermined luminance region, 0≤ki≤ 255, niIt is the picture to be shown in i-th of predetermined luminance area
The number of pixels in domain.
As a kind of possible embodiment, Fig. 7 is a kind of backlight regulating device shown according to an exemplary embodiment
Block diagram, as shown in fig. 7, backlight regulating device disclosed above can also be configured to the second determining module 504 to include the second meter
Operator module 5041, in which:
Second computational submodule 5041, for calculating the corresponding backlight value of the picture to be shown according to following formula
BLcal:
BLcal=BLj+(BLj+1-BLj)·(Lcal–j)
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
As a kind of possible embodiment, Fig. 8 is a kind of backlight regulating device shown according to an exemplary embodiment
Block diagram, as shown in figure 8, backlight regulating device disclosed above can also be configured to the second determining module 504 to include first true
Stator modules 5042, acquisition submodule 5043 and second determine submodule 5044, in which:
First determine submodule 5042, for according to the picture to be shown luminance factor average value and preset backlight
It is worth curve, determines the corresponding pretreatment backlight value of the picture to be shown；
Acquisition submodule 5043, for obtaining backlight adjustment ratio；
Second determines submodule 5044, for according to the corresponding pretreatment backlight value of picture to be shown and the backlight
Adjustment ratio determines the corresponding backlight value of the picture to be shown.
As a kind of possible embodiment, Fig. 9 is a kind of backlight regulating device shown according to an exemplary embodiment
Block diagram, as shown in figure 9, backlight regulating device disclosed above can be configured to include adjustment module 505, in which:
Module 505 is adjusted, for showing the backlight value of picture according to pre- previous frame when showing the picture to be shown
If step-length gradually adjusts backlight value corresponding to the picture to be shown.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Figure 10 is a kind of block diagram for backlight regulating device shown according to an exemplary embodiment, which is suitable for
Terminal device.For example, device 1000 can be mobile phone, game console, computer, tablet device, personal digital assistant etc..
Device 1000 may include following one or more components: processing component 1001, memory 1002, power supply module
1003, multimedia component 1004, audio component 1005, input/output (I/O) interface 1006, sensor module 1007, Yi Jitong
Believe component 1008.
The integrated operation of the usual control device 1000 of processing component 1001, such as with display, telephone call, data communication,
Camera operation and record operate associated operation.Processing component 1001 may include one or more processors 1020 to execute
Instruction, to perform all or part of the steps of the methods described above.In addition, processing component 1001 may include one or more moulds
Block, convenient for the interaction between processing component 1001 and other assemblies.For example, processing component 1001 may include multi-media module,
To facilitate the interaction between multimedia component 1004 and processing component 1001.
Memory 1002 is configured as storing various types of data to support the operation in device 1000.These data
Example includes the instruction of any application or method for operating on device 1000, contact data, telephone book data,
Message, picture, video etc..Memory 1002 can by any kind of volatibility or non-volatile memory device or they
Combination is realized, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), it is erasable can
Program read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory
Reservoir, disk or CD.
Power supply module 1003 provides electric power for the various assemblies of device 1000.Power supply module 1003 may include power management
System, one or more power supplys and other with for device 1000 generate, manage, and distribute the associated component of electric power.
Multimedia component 1004 includes the screen of one output interface of offer between described device 1000 and user.?
In some embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel,
Screen may be implemented as touch screen, to receive input signal from the user.Touch panel includes that one or more touch passes
Sensor is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding is dynamic
The boundary of work, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more
Media component 1004 includes a front camera and/or rear camera.When device 1000 is in operation mode, as shot mould
When formula or video mode, front camera and/or rear camera can receive external multi-medium data.Each preposition camera shooting
Head and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 1005 is configured as output and/or input audio signal.For example, audio component 1005 includes a wheat
Gram wind (MIC), when device 1000 is in operation mode, when such as call mode, recording mode, and voice recognition mode, microphone quilt
It is configured to receive external audio signal.The received audio signal can be further stored in memory 1002 or via communication
Component 1008 is sent.In some embodiments, audio component 1005 further includes a loudspeaker, is used for output audio signal.
The interface 1006 of I/O provides interface, above-mentioned peripheral interface mould between processing component 1001 and peripheral interface module
Block can be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button
And locking press button.
Sensor module 1007 includes one or more sensors, and the state for providing various aspects for device 1000 is commented
Estimate.For example, sensor module 1007 can detecte the state that opens/closes of device 1000, the relative positioning of component, such as institute
The display and keypad that component is device 1000 are stated, sensor module 1007 can be with detection device 1000 or device 1,000 1
The position change of a component, the existence or non-existence that user contacts with device 1000,1000 orientation of device or acceleration/deceleration and dress
Set 1000 temperature change.Sensor module 1007 may include proximity sensor, be configured in not any physics
It is detected the presence of nearby objects when contact.Sensor module 1007 can also include optical sensor, as CMOS or ccd image are sensed
Device, for being used in imaging applications.In some embodiments, which can also include acceleration sensing
Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 1008 is configured to facilitate the communication of wired or wireless way between device 1000 and other equipment.Dress
The wireless network based on communication standard, such as WiFi can be accessed by setting 1000,2G or 3G or their combination.It is exemplary at one
In embodiment, communication component 1008 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel
Information.In one exemplary embodiment, the communication component 1008 further includes near-field communication (NFC) module, to promote short distance
Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module
(UWB) technology, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 1000 can be by one or more application specific integrated circuit (ASIC), number
Signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 1002 of instruction, above-metioned instruction can be executed by the processor 1020 of device 1000 to complete the above method.Example
Such as, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, soft
Disk and optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is by the processing of device 1000
When device executes, so that device 1000 is able to carry out above-mentioned backlight adjusting method, which comprises
Obtain the luminance information of picture to be shown；
According to the luminance information, the picture to be shown is counted in the number of pixels in each predetermined luminance region；
According to the picture to be shown in the number of pixels in each predetermined luminance region and each predetermined luminance region pair prestored
The luminance factor answered determines the luminance factor average value of the picture to be shown；
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture to be shown is determined
The corresponding backlight value in face, the backlight value curve include the homologous thread between luminance factor average value and backlight value.
In one embodiment, described in the number of pixels in each predetermined luminance region and to be prestored according to the picture to be shown
The corresponding luminance factor in each predetermined luminance region, determine the luminance factor average value of the picture to be shown, comprising:
The luminance factor average value L of the picture to be shown is calculated according to following formulacal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is i-th
The corresponding luminance factor in predetermined luminance region, 0≤ki≤ 255, niIt is the picture to be shown in i-th predetermined luminance region
Number of pixels.
In one embodiment, described bent according to the luminance factor average value of the picture to be shown and preset backlight value
Line determines the corresponding backlight value of the picture to be shown, comprising:
The corresponding backlight value BL of the picture to be shown is calculated according to following formulacal:
BLcal=BLj+(BLj+1-BLj)·(Lcal–j)
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
In one embodiment, described bent according to the luminance factor average value of the picture to be shown and preset backlight value
Line determines the corresponding backlight value of the picture to be shown, comprising:
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture to be shown is determined
The corresponding pretreatment backlight value in face；
It obtains backlight and adjusts ratio；
Ratio is adjusted according to the corresponding pretreatment backlight value of picture to be shown and the backlight, is determined described to be shown
The corresponding backlight value of picture.
In one embodiment, the method also includes:
When showing the picture to be shown, by previous frame show picture backlight value gradually adjust according to preset step-length to
The corresponding backlight value of the picture to be shown.
The present embodiment additionally provides a kind of backlight regulating device, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Obtain the luminance information of picture to be shown；
According to the luminance information, the picture to be shown is counted in the number of pixels in each predetermined luminance region；
According to the picture to be shown in the number of pixels in each predetermined luminance region and each predetermined luminance region pair prestored
The luminance factor answered determines the luminance factor average value of the picture to be shown；
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture to be shown is determined
The corresponding backlight value in face, the backlight value curve include the homologous thread between luminance factor average value and backlight value.
In one embodiment, above-mentioned processor can be additionally configured to:
According to the picture to be shown in the number of pixels in each predetermined luminance region and each predetermined luminance region pair prestored
The luminance factor answered determines the luminance factor average value of the picture to be shown, comprising:
The luminance factor average value L of the picture to be shown is calculated according to following formulacal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is i-th
The corresponding luminance factor in predetermined luminance region, 0≤ki≤ 255, niIt is the picture to be shown in i-th predetermined luminance region
Number of pixels.
In one embodiment, above-mentioned processor can be additionally configured to:
The luminance factor average value and preset backlight value curve according to the picture to be shown determines described to aobvious
Show the corresponding backlight value of picture, comprising:
The corresponding backlight value BL of the picture to be shown is calculated according to following formulacal:
BLcal=BLj+(BLj+1-BLj)·(Lcal–j)
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
In one embodiment, above-mentioned processor can be additionally configured to:
The luminance factor average value and preset backlight value curve according to the picture to be shown determines described to aobvious
Show the corresponding backlight value of picture, comprising:
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture to be shown is determined
The corresponding pretreatment backlight value in face；
It obtains backlight and adjusts ratio；
Ratio is adjusted according to the corresponding pretreatment backlight value of picture to be shown and the backlight, is determined described to be shown
The corresponding backlight value of picture.
In one embodiment, above-mentioned processor can be additionally configured to:
The method also includes:
When showing the picture to be shown, by previous frame show picture backlight value gradually adjust according to preset step-length to
The corresponding backlight value of the picture to be shown.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (12)
1. a kind of backlight adjusting method characterized by comprising
Obtain the luminance information of picture to be shown；
According to the luminance information, the picture to be shown is counted in the number of pixels in each predetermined luminance region；
Number of pixels according to the picture to be shown in each predetermined luminance region is corresponding with each predetermined luminance region prestored
Luminance factor determines the luminance factor average value of the picture to be shown；
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture pair to be shown is determined
The backlight value answered, the backlight value curve include the homologous thread between luminance factor average value and backlight value.
2. the method according to claim 1, wherein it is described according to the picture to be shown in each predetermined luminance area
The number of pixels in domain luminance factor corresponding with each predetermined luminance region prestored, determines the luminance factor of the picture to be shown
Average value, comprising:
The luminance factor average value L of the picture to be shown is calculated according to following formulacal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is default for i-th
The corresponding luminance factor of luminance area, 0≤ki≤ 255, niPixel for the picture to be shown in i-th of predetermined luminance region
Number.
3. the method according to claim 1, wherein the luminance factor according to the picture to be shown is average
Value and preset backlight value curve, determine the corresponding backlight value of the picture to be shown, comprising:
The corresponding backlight value BL of the picture to be shown is calculated according to following formulacal:
BLcal=BLj+(BLj+1-BLj)·(Lcal–j)
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
4. the method according to claim 1, wherein the luminance factor according to the picture to be shown is average
Value and preset backlight value curve, determine the corresponding backlight value of the picture to be shown, comprising:
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture pair to be shown is determined
The pretreatment backlight value answered；
It obtains backlight and adjusts ratio；
Ratio is adjusted according to the corresponding pretreatment backlight value of picture to be shown and the backlight, determines the picture to be shown
Corresponding backlight value.
5. the method according to claim 1, wherein the method also includes:
When showing the picture to be shown, previous frame is shown that the backlight value of picture is gradually adjusted according to preset step-length to described
The corresponding backlight value of picture to be shown.
6. a kind of backlight regulating device characterized by comprising
First obtains module, for obtaining the luminance information of picture to be shown；
Statistical module, for counting the picture to be shown in the pixel in each predetermined luminance region according to the luminance information
Number；
First determining module, in the number of pixels in each predetermined luminance region and being prestored each pre- according to the picture to be shown
If the corresponding luminance factor of luminance area determines the luminance factor average value of the picture to be shown；
Second determining module, for the luminance factor average value and preset backlight value curve according to the picture to be shown, really
Determine the corresponding backlight value of the picture to be shown, the backlight value curve includes pair between luminance factor average value and backlight value
Answer curve.
7. device according to claim 6, which is characterized in that first determining module includes:
First computational submodule, for calculating the luminance factor average value L of the picture to be shown according to following formulacal:
Wherein, N is the number in predetermined luminance region, and m × n is the number of pixels in the picture to be shown；kiIt is default for i-th
The corresponding luminance factor of luminance area, 0≤ki≤ 255, niPixel for the picture to be shown in i-th of predetermined luminance region
Number.
8. device according to claim 6, which is characterized in that second determining module includes:
Second computational submodule, for calculating the corresponding backlight value BL of the picture to be shown according to following formulacal:
BLcal=BLj+(BLj+1-BLj)·(Lcal–j)
Wherein, j=[Lcal], BLjFor the corresponding default backlight value of j, 0≤BLj≤255。
9. device according to claim 6, which is characterized in that second determining module includes:
First determines submodule, for the luminance factor average value and preset backlight value curve according to the picture to be shown,
Determine the corresponding pretreatment backlight value of the picture to be shown；
Acquisition submodule, for obtaining backlight adjustment ratio；
Second determines submodule, for adjusting ratio according to the corresponding pretreatment backlight value of picture to be shown and the backlight
Example, determines the corresponding backlight value of the picture to be shown.
10. device according to claim 6, which is characterized in that described device further include:
Module is adjusted, for showing the backlight value of picture according to preset step-length previous frame when showing the picture to be shown
Gradually adjust backlight value corresponding to the picture to be shown.
11. a kind of backlight regulating device characterized by comprising
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Obtain the luminance information of picture to be shown；
According to the luminance information, the picture to be shown is counted in the number of pixels in each predetermined luminance region；
Number of pixels according to the picture to be shown in each predetermined luminance region is corresponding with each predetermined luminance region prestored
Luminance factor determines the luminance factor average value of the picture to be shown；
According to the luminance factor average value of the picture to be shown and preset backlight value curve, the picture pair to be shown is determined
The backlight value answered, the backlight value curve include the homologous thread between luminance factor average value and backlight value.
12. a kind of computer readable storage medium, is stored with computer instruction, which is characterized in that the computer instruction is located
Manage the step realized in any one of claim 1 to 5 the method when device executes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967842.2A CN109102779B (en) | 2018-08-23 | 2018-08-23 | Backlight adjusting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967842.2A CN109102779B (en) | 2018-08-23 | 2018-08-23 | Backlight adjusting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109102779A true CN109102779A (en) | 2018-12-28 |
| CN109102779B CN109102779B (en) | 2020-07-31 |
Family
ID=64851010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810967842.2A Active CN109102779B (en) | 2018-08-23 | 2018-08-23 | Backlight adjusting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109102779B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192464A (en) * | 2020-01-14 | 2021-07-30 | 华为技术有限公司 | Backlight adjusting method and electronic equipment |
| CN114023274A (en) * | 2021-11-26 | 2022-02-08 | 惠州视维新技术有限公司 | Backlight adjusting method and device, display equipment and storage medium |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050184952A1 (en) * | 2004-02-09 | 2005-08-25 | Akitoyo Konno | Liquid crystal display apparatus |
| CN101149903A (en) * | 2006-09-21 | 2008-03-26 | 株式会社东芝 | Image display apparatus and image display method |
| US20080117160A1 (en) * | 2006-11-20 | 2008-05-22 | Naoya Oka | Liquid crystal display, as well as, a backlight controller and a method for the same |
| CN101202016A (en) * | 2006-12-15 | 2008-06-18 | 英业达股份有限公司 | Display and correlation control method thereof |
| CN101324722A (en) * | 2007-06-13 | 2008-12-17 | 深圳Tcl新技术有限公司 | Method for adjusting liquid crystal display device backlight lightness and contrast |
| CN102647832A (en) * | 2012-04-16 | 2012-08-22 | 深圳创维－Rgb电子有限公司 | Dynamic backlight adjustment method, system and television |
| CN103092551A (en) * | 2012-12-27 | 2013-05-08 | 北京小米科技有限责任公司 | Method and device for adjusting display effect |
| CN103106876A (en) * | 2013-01-14 | 2013-05-15 | 合肥工业大学 | Global dimming method of liquid crystal display backlight based on image classification |
| CN106228936A (en) * | 2016-09-28 | 2016-12-14 | 青岛海信电器股份有限公司 | Backlight brightness control method, Apparatus and liquid crystal display equipment |
| CN106713696A (en) * | 2016-12-12 | 2017-05-24 | 北京小米移动软件有限公司 | Image processing method and device |
| EP3190585A1 (en) * | 2016-01-08 | 2017-07-12 | BenQ Corporation | Image adjusting method capable of executing optical adjustment according to environmental variation and related display |
| CN108156533A (en) * | 2017-12-28 | 2018-06-12 | 深圳Tcl新技术有限公司 | Smart television backlight adjusting method, smart television and storage medium |
-
2018
- 2018-08-23 CN CN201810967842.2A patent/CN109102779B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050184952A1 (en) * | 2004-02-09 | 2005-08-25 | Akitoyo Konno | Liquid crystal display apparatus |
| CN101149903A (en) * | 2006-09-21 | 2008-03-26 | 株式会社东芝 | Image display apparatus and image display method |
| US20080117160A1 (en) * | 2006-11-20 | 2008-05-22 | Naoya Oka | Liquid crystal display, as well as, a backlight controller and a method for the same |
| CN101202016A (en) * | 2006-12-15 | 2008-06-18 | 英业达股份有限公司 | Display and correlation control method thereof |
| CN101324722A (en) * | 2007-06-13 | 2008-12-17 | 深圳Tcl新技术有限公司 | Method for adjusting liquid crystal display device backlight lightness and contrast |
| CN102647832A (en) * | 2012-04-16 | 2012-08-22 | 深圳创维－Rgb电子有限公司 | Dynamic backlight adjustment method, system and television |
| CN103092551A (en) * | 2012-12-27 | 2013-05-08 | 北京小米科技有限责任公司 | Method and device for adjusting display effect |
| CN103106876A (en) * | 2013-01-14 | 2013-05-15 | 合肥工业大学 | Global dimming method of liquid crystal display backlight based on image classification |
| EP3190585A1 (en) * | 2016-01-08 | 2017-07-12 | BenQ Corporation | Image adjusting method capable of executing optical adjustment according to environmental variation and related display |
| CN106228936A (en) * | 2016-09-28 | 2016-12-14 | 青岛海信电器股份有限公司 | Backlight brightness control method, Apparatus and liquid crystal display equipment |
| CN106713696A (en) * | 2016-12-12 | 2017-05-24 | 北京小米移动软件有限公司 | Image processing method and device |
| CN108156533A (en) * | 2017-12-28 | 2018-06-12 | 深圳Tcl新技术有限公司 | Smart television backlight adjusting method, smart television and storage medium |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192464A (en) * | 2020-01-14 | 2021-07-30 | 华为技术有限公司 | Backlight adjusting method and electronic equipment |
| CN113192464B (en) * | 2020-01-14 | 2023-01-13 | 华为技术有限公司 | Backlight adjusting method and electronic equipment |
| CN114023274A (en) * | 2021-11-26 | 2022-02-08 | 惠州视维新技术有限公司 | Backlight adjusting method and device, display equipment and storage medium |
| CN114023274B (en) * | 2021-11-26 | 2023-07-25 | 惠州视维新技术有限公司 | Backlight adjustment method, device, display equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109102779B (en) | 2020-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3276604A1 (en) | Method and device for adjusting refresh rate | |
| CN106875925B (en) | The refresh rate method of adjustment and device of screen | |
| JP6401785B2 (en) | Liquid crystal display method and apparatus | |
| CN108986053B (en) | Screen display method and device | |
| CN109147714A (en) | The refresh rate method of adjustment and device of screen, computer readable storage medium | |
| CN111462701A (en) | Backlight brightness adjusting method and device | |
| CN110619860A (en) | Screen refresh rate adjusting method and device, storage medium and electronic equipment | |
| KR20170067675A (en) | Liquid crystal display method and device | |
| CN104464674B (en) | Liquid crystal display method of adjustment and device | |
| CN106332415B (en) | Key brightness correcting method and device | |
| CN111901459A (en) | Color temperature adjusting method, device, terminal and storage medium | |
| CN109102779A (en) | backlight adjusting method and device | |
| CN106128415B (en) | Screen luminance adjustment method and device | |
| CN114827391A (en) | Camera switching method, camera switching device and storage medium | |
| CN108156381B (en) | Photographing method and device | |
| CN114442792A (en) | Method and device for adjusting operating frequency of processor and storage medium | |
| CN108874482B (en) | Image processing method and device | |
| CN108831394B (en) | Interface display method and device | |
| CN108986753B (en) | Interface display method and device | |
| CN111314550A (en) | Display control method and device, mobile terminal and storage medium | |
| CN112019680A (en) | Screen brightness adjusting method and device | |
| CN113760077A (en) | Mobile terminal, temperature control method and device of mobile terminal and storage medium | |
| CN113360052A (en) | Page display adjusting method and device, mobile terminal and storage medium | |
| CN113241044B (en) | Screen brightness adjusting method, device, equipment and storage medium | |
| CN113470583B (en) | Display screen adjusting method and device and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |