CN106486070B - Adjust the method and device of liquid crystal display screen backlight illumination - Google Patents
Adjust the method and device of liquid crystal display screen backlight illumination Download PDFInfo
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- CN106486070B CN106486070B CN201611070755.4A CN201611070755A CN106486070B CN 106486070 B CN106486070 B CN 106486070B CN 201611070755 A CN201611070755 A CN 201611070755A CN 106486070 B CN106486070 B CN 106486070B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
Abstract
The invention discloses a kind of methods for adjusting liquid crystal display screen backlight illumination, which comprises receives the liquid crystal display screen backlight brightness data being scanned from luminance sensor to liquid crystal display screen；Coordinate diagram is established based on the liquid crystal display screen size and the liquid crystal display screen backlight brightness data, the coordinate diagram includes the corresponding backlight brightness data of each coordinate points；Screen backlight luminance standard data are chosen, the luminance compensation data of screen backlight luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram are calculated；Pass through the corresponding backlight brightness data for adjusting liquid crystal display screen of the luminance compensation data.The invention also discloses a kind of devices for adjusting liquid crystal display screen backlight illumination.The present invention enables to liquid crystal display screen backlight illumination consistent.
Description
Technical field
The present invention relates to LCD brightness adjustment technology field more particularly to a kind of adjusting liquid crystal display screens
The method and device of backlight illumination.
Background technique
As the size of liquid crystal television panel is gradually increased, this will guarantee that the even back of whole screen proposes to backlight module
Higher requirement.The light source of backlight is mainly derived from incandescent lamp bulb, electrooptic panel (ELP), light emitting diode (LED), cold cathode
Fluorescent tube (CCFL) etc., these light emitting sources are mostly non-uniform light sources, and usual backlight module, which will use diffuser, to be come from these
Relatively uniform light source is obtained in non-uniform source aggregate.But after panel size is bigger, the uniformity coefficient of backlight is just more difficult to be protected
Barrier, it will usually which occurring a certain piece can be brighter, a certain piece and darker phenomenon.The reason of leading to these phenomenons may be back
Optical mode group just will appear difference between some mould groups with the increase of production quantity, such difference result in each TV it
Between even back degree it is different.The smart home backlight for being difficult to solve big panel by diffuser at present is non-uniform to ask
Topic.
Summary of the invention
It is a primary object of the present invention to propose a kind of method and device for adjusting liquid crystal display screen backlight illumination,
Aim to solve the problem that by diffuser be difficult to solve the problems, such as big panel smart home backlight it is non-uniform the technical issues of.
To achieve the above object, the present invention provides a kind of method for adjusting liquid crystal display screen backlight illumination, described
Method the following steps are included:
It receives and the liquid crystal display screen that liquid crystal display screen is scanned is carried on the back from luminance sensor
Luminance data；
It is built based on the liquid crystal display screen size and the liquid crystal display screen backlight brightness data
Vertical coordinate diagram, the coordinate diagram includes the corresponding backlight brightness data of each coordinate points；
Screen backlight luminance standard data are chosen, are calculated in the screen backlight luminance standard data and the coordinate diagram
The luminance compensation data of the corresponding backlight brightness data of each coordinate points；
Pass through the corresponding backlight brightness data for adjusting liquid crystal display screen of the luminance compensation data.
Optionally, the selection screen backlight luminance standard data, calculate the screen backlight luminance standard data and institute
The step of stating the luminance compensation data of the corresponding backlight brightness data of each coordinate points in coordinate diagram include:
The corresponding backlight brightness data of each coordinate points in the coordinate diagram is successively compared, the coordinate is obtained
The maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in figure；
The maximum backlight brightness data is chosen for screen backlight luminance standard data；
By screen backlight luminance standard data backlight illumination number corresponding with each coordinate points in the coordinate diagram
According to successively subtracting each other, corresponding luminance compensation data are obtained.
Optionally, described that the screen backlight luminance standard data are corresponding with each coordinate points in the coordinate diagram
Include: after the step of backlight brightness data is successively subtracted each other, and corresponding luminance compensation data are obtained
The corresponding luminance compensation data are compared with preset data；
If the corresponding luminance compensation data are greater than preset data, the corresponding luminance compensation data are saved；
If the corresponding luminance compensation data are less than or equal to preset data, ignore the corresponding luminance compensation number
According to.
Optionally, described to pass through the corresponding backlight brightness data for adjusting liquid crystal display screen of the luminance compensation data
The step of include:
Obtain the backlight brightness data with the luminance compensation data respective coordinates point；
The luminance compensation data are added with the backlight brightness data of respective coordinates point.
Optionally, described to pass through the corresponding backlight brightness data for adjusting liquid crystal display screen of the luminance compensation data
The step of after further include:
When the backlight brightness data of liquid crystal display screen is consistent, generates and save based on the bright of backlight brightness data
Spend offset data coordinate diagram；
In playing process, before picture is replaced, the backlight brightness data of the picture is obtained；
According to the luminance compensation data coordinates figure based on backlight brightness data to the backlight brightness data of the picture
It is adjusted.
In addition, to achieve the above object, the present invention also provides a kind of dresses for adjusting liquid crystal display screen backlight illumination
It sets, described device includes:
Receiving module, for receiving the liquid crystal being scanned from luminance sensor to liquid crystal display screen
Showing device screen backlight brightness data；
Module is established, for carrying on the back based on the liquid crystal display screen size and the liquid crystal display screen
Luminance data establishes coordinate diagram, and the coordinate diagram includes the corresponding backlight brightness data of each coordinate points；
Computing module, for choosing screen backlight luminance standard data, calculate the screen backlight luminance standard data with
The luminance compensation data of the corresponding backlight brightness data of each coordinate points in the coordinate diagram；
First adjustment module, for bright by the corresponding backlight for adjusting liquid crystal display screen of the luminance compensation data
Degree evidence.
Optionally, the computing module includes:
Comparing unit, for successively comparing the corresponding backlight brightness data of each coordinate points in the coordinate diagram
Compared with obtaining the maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in the coordinate diagram；
Selection unit, for the maximum backlight brightness data to be chosen for screen backlight luminance standard data；
Subtract each other unit, for the screen backlight luminance standard data are corresponding with each coordinate points in the coordinate diagram
Backlight brightness data successively subtract each other, obtain corresponding luminance compensation data.
Optionally, the unit that subtracts each other includes:
Comparison unit, for comparing the corresponding luminance compensation data with preset data；
Storage unit, if being greater than preset data for the corresponding luminance compensation data, by the corresponding brightness
Offset data saves；
Ignore unit, if being less than or equal to preset data for the corresponding luminance compensation data, it is described right to ignore
The luminance compensation data answered.
Optionally, first adjustment module includes:
Acquiring unit, for obtaining and the backlight brightness data of the luminance compensation data respective coordinates point；
Addition unit, for being added the luminance compensation data with the backlight brightness data of respective coordinates point.
Optionally, described device further include:
Generation module is based on back for when the backlight brightness data of liquid crystal display screen is consistent, generating and saving
The luminance compensation data coordinates figure of luminance data；
Module is obtained, for before picture is replaced, obtaining the backlight illumination number of the picture in playing process
According to；
Second adjustment module, for the luminance compensation data coordinates figure based on backlight brightness data according to the picture
The backlight brightness data in face is adjusted.
The present invention is by receiving the liquid crystal display being scanned from luminance sensor to liquid crystal display screen
Device screen backlight brightness data；It is carried on the back based on the liquid crystal display screen size and the liquid crystal display screen
Luminance data establishes coordinate diagram, and the coordinate diagram includes the corresponding backlight brightness data of each coordinate points；Choose screen backlight
Luminance standard data calculate screen backlight luminance standard data backlight corresponding with each coordinate points in the coordinate diagram
The luminance compensation data of brightness data；Pass through the corresponding backlight illumination for adjusting liquid crystal display screen of the luminance compensation data
Data.Liquid crystal display is filled from luminance sensor by the above-mentioned means, being received first by the software in liquid crystal display device
Set the liquid crystal display screen backlight brightness data that screen is scanned；Based on the liquid crystal display screen size
Size and the liquid crystal display screen backlight brightness data establish coordinate diagram, and the coordinate diagram includes that each coordinate points are corresponding
Backlight brightness data；Screen backlight luminance standard data are chosen, the screen backlight luminance standard data and the seat are calculated
The luminance compensation data of the corresponding backlight brightness data of each coordinate points in marking on a map；It is adjusted by the way that the luminance compensation data are corresponding
The backlight brightness data for saving liquid crystal display screen, so that the even back degree of liquid crystal display screen is consistent.
Detailed description of the invention
Fig. 1 is the method first embodiment flow diagram that the present invention adjusts liquid crystal display screen backlight illumination；
Fig. 2 be Fig. 1 in choose screen backlight luminance standard data, calculate the screen backlight luminance standard data with it is described
The luminance compensation data of backlight brightness data in the corresponding backlight brightness data table of liquid crystal display screen lightness dimension
The step of one refinement flow diagram；
Fig. 3 be Fig. 1 in choose screen backlight luminance standard data, calculate the screen backlight luminance standard data with it is described
The luminance compensation data of backlight brightness data in the corresponding backlight brightness data table of liquid crystal display screen lightness dimension
The step of another refinement flow diagram；
Fig. 4 is in Fig. 1 by the corresponding backlight brightness data for adjusting liquid crystal display screen of the luminance compensation data
The step of refinement flow diagram；
Fig. 5 is the method second embodiment flow diagram that the present invention adjusts liquid crystal display screen backlight illumination；
Fig. 6 is the functional module signal for the device first embodiment that the present invention adjusts liquid crystal display screen backlight illumination
Figure；
Fig. 7 is a refinement the functional block diagram of computing module in Fig. 6；
Fig. 8 is another refinement the functional block diagram of computing module in Fig. 6；
Fig. 9 is the refinement the functional block diagram of the first adjustment module in Fig. 6；
Figure 10 is that the functional module for the device second embodiment that the present invention adjusts liquid crystal display screen backlight illumination is shown
It is intended to.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of method for adjusting liquid crystal display screen backlight illumination.
Referring to Fig.1, Fig. 1 is the process for the method first embodiment that the present invention adjusts liquid crystal display screen backlight illumination
Schematic diagram.
In one embodiment, this method comprises:
Step S100 is received and is filled from luminance sensor to the liquid crystal display that liquid crystal display screen is scanned
Set screen backlight brightness data.
In the present embodiment, to guarantee that the present embodiment can normally be implemented, before implementing the present embodiment, needing will be to school
Positive LCD device backlight is adjusted to minimum brightness, allows liquid crystal display device to show black picture, then by luminance sensor
It is connect with liquid crystal display device.
Liquid crystal display device opens backlight correction function, entry of backlight correction mode according to the open command that user triggers.
After liquid crystal display device entry of backlight correction mode, entire screen of the luminance sensor to liquid crystal display device
It is scanned, obtains liquid crystal display screen backlight brightness data, and by the liquid crystal display screen backlight illumination number
According to being sent to liquid crystal display device.
Specifically, after luminance sensor sends the liquid crystal display screen backlight brightness data, liquid crystal display
Device receives the liquid crystal display screen backlight brightness data.
Step S200, it is bright based on the liquid crystal display screen size and the liquid crystal display screen backlight
Degree includes the corresponding backlight brightness data of each coordinate points according to coordinate diagram, the coordinate diagram is established.
After receiving the liquid crystal display screen backlight brightness data, liquid crystal display device is based on by software
The liquid crystal display screen size and the liquid crystal display screen backlight brightness data establish coordinate diagram, described
Coordinate diagram includes the corresponding backlight brightness data of each coordinate points.Specifically, pass through software foundation and liquid crystal display screen
Coordinate diagram of the same size, then according to the liquid crystal display screen backlight brightness data by the corresponding backlight of each coordinate
Brightness data mark is into coordinate diagram, for example the backlight brightness data of coordinate (1,2) is 10, then in the corresponding point mark of coordinate (1,2)
Upper 10.
Step S300, choose screen backlight luminance standard data, calculate the screen backlight luminance standard data with it is described
The luminance compensation data of the corresponding backlight brightness data of each coordinate points in coordinate diagram.
After establishing coordinate diagram, the backlight brightness data in coordinate diagram is chosen as screen backlight luminance standard data,
And calculate screen backlight luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram
Luminance compensation data.It specifically, can be by each coordinate points in the screen backlight luminance standard data and the coordinate diagram
Corresponding backlight brightness data is successively subtracted each other, and corresponding luminance compensation data are obtained.
Step S400 passes through the corresponding backlight brightness data for adjusting liquid crystal display screen of the luminance compensation data.
After obtaining luminance compensation data, according to the corresponding adjusting liquid crystal display screen of the luminance compensation data
Backlight brightness data.So that the backlight brightness data in each of liquid crystal display screen place is the same.
The present embodiment is by receiving the liquid crystal being scanned from luminance sensor to liquid crystal display screen
Showing device screen backlight brightness data；Based on the liquid crystal display screen size and the liquid crystal display screen
Backlight brightness data establishes coordinate diagram, and the coordinate diagram includes the corresponding backlight brightness data of each coordinate points；Choose screen back
Brightness normal data calculates screen backlight luminance standard data back corresponding with each coordinate points in the coordinate diagram
The luminance compensation data of luminance data；It is bright by the corresponding backlight for adjusting liquid crystal display screen of the luminance compensation data
Degree evidence.By the above-mentioned means, being received first from luminance sensor by the software in liquid crystal display device to liquid crystal display
The liquid crystal display screen backlight brightness data that device screen is scanned；Based on the liquid crystal display screen ruler
Very little size and the liquid crystal display screen backlight brightness data establish coordinate diagram, and the coordinate diagram includes each coordinate points pair
The backlight brightness data answered；Choose screen backlight luminance standard data, calculate the screen backlight luminance standard data with it is described
The luminance compensation data of the corresponding backlight brightness data of each coordinate points in coordinate diagram；It is corresponding by the luminance compensation data
The backlight brightness data for adjusting liquid crystal display screen, so that the even back degree of liquid crystal display screen is consistent.
Further, it is to choose screen backlight luminance standard data in Fig. 1 referring to Fig. 2, Fig. 2, calculates the screen backlight
The step of luminance compensation data of luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram
One refinement flow diagram.
The method first embodiment of liquid crystal display screen backlight illumination is adjusted based on the present invention, the step S300 can
To include:
The corresponding backlight brightness data of each coordinate points in the coordinate diagram is successively compared, obtains by step S310
Take the maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in the coordinate diagram；
The maximum backlight brightness data is chosen for screen backlight luminance standard data by step S320；
Step S330, by screen backlight luminance standard data back corresponding with each coordinate points in the coordinate diagram
Luminance data successively subtracts each other, and obtains corresponding luminance compensation data.
In the present embodiment, the method for choosing screen backlight luminance standard data can be each seat in the coordinate diagram
The corresponding backlight brightness data of punctuate is successively compared, and obtains the corresponding backlight illumination of each coordinate points in the coordinate diagram
Then the maximum backlight brightness data is chosen for screen backlight luminance standard number by the maximum backlight brightness data in data
According to.The corresponding backlight brightness data of each coordinate points in the coordinate diagram can also be subjected to ascending order row in specific implementation process
Sequence obtains the maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in the coordinate diagram.Then will
Screen backlight luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram is successively subtracted each other,
Obtain the corresponding luminance compensation data of each coordinate.
Further, it is to choose screen backlight luminance standard data in Fig. 1 referring to Fig. 3, Fig. 3, calculates the screen backlight
Backlight illumination in luminance standard data backlight brightness data table corresponding with the liquid crystal display screen lightness dimension
Another refinement flow diagram of the step of luminance compensation data of data.
The method first embodiment of liquid crystal display screen backlight illumination is adjusted based on the present invention, the step S300 is also
May include:
Step S340 compares the corresponding luminance compensation data with preset data；
Step S350, if the corresponding luminance compensation data are greater than preset data, by the corresponding luminance compensation
Data save；
Step S360 ignores described corresponding if the corresponding luminance compensation data are less than or equal to preset data
Luminance compensation data.
In the present embodiment, the corresponding luminance compensation data can be compared with preset data, it is described default
Data are generally zero, and specific access requires to carry out access evidence according to the even back that can be needed according to user.If described corresponding
Luminance compensation data are greater than preset data, then illustrate the corresponding coordinate brightness data of the corresponding luminance compensation data and standard
Brightness data then need to save the corresponding luminance compensation data not in the range of user preset, and fed back,
To be adjusted.If the corresponding luminance compensation data are less than or equal to preset data, illustrate the corresponding brightness
In the range of user preset, then it is described right to ignore for the corresponding coordinate brightness data of offset data and the brightness data of standard
The luminance compensation data answered.
It further, is to adjust liquid crystal display device screen by the way that the luminance compensation data are corresponding in Fig. 1 referring to Fig. 4, Fig. 4
The refinement flow diagram of the step of backlight brightness data of curtain.
The method first embodiment of liquid crystal display screen backlight illumination is adjusted based on the present invention, the step S400 can
To include:
Step S410 obtains the backlight brightness data with the luminance compensation data respective coordinates point；
The luminance compensation data are added by step S420 with the backlight brightness data of respective coordinates point.
In the present embodiment, pass through the corresponding backlight illumination number for adjusting liquid crystal display screen of the luminance compensation data
According to specific implementation method can be with are as follows: obtain the backlight brightness data with the luminance compensation data respective coordinates point first, so
The luminance compensation data are added with the backlight brightness data of respective coordinates point afterwards.So that the backlight of each position is bright in screen
Degree is according to consistent.
It further, is that the present invention adjusts the method second of liquid crystal display screen backlight illumination in fact referring to Fig. 5, Fig. 5
Apply a flow diagram.
The method first embodiment of liquid crystal display screen backlight illumination is adjusted based on the present invention, the method is also wrapped
It includes:
Step S500 is generated and is saved bright based on backlight when the backlight brightness data of liquid crystal display screen is consistent
The luminance compensation data coordinates figure of degree evidence；
Step S600 before picture is replaced, obtains the backlight brightness data of the picture in playing process；
Step S700, according to the luminance compensation data coordinates figure based on backlight brightness data to the backlight of the picture
Brightness data is adjusted.
In the present embodiment, after adjusting liquid crystal display screen backlight illumination, liquid crystal display screen at this time
Backlight brightness data it is consistent, by software control generate the luminance compensation data coordinates figure based on backlight brightness data, then
The luminance compensation data coordinates figure is saved.When subsequent user plays out, the back of user's picture to be played is obtained first
Luminance data.Then bright to the backlight of the picture according to the luminance compensation data coordinates figure based on backlight brightness data
Degree evidence is adjusted.
The present embodiment is by generating and saving based on backlight when the backlight brightness data of liquid crystal display screen is consistent
The luminance compensation data coordinates figure of brightness data；In playing process, before picture is replaced, the back of the picture is obtained
Luminance data；According to the luminance compensation data coordinates figure based on backlight brightness data to the backlight illumination number of the picture
According to being adjusted.By the above-mentioned means, the backlight illumination of liquid crystal display screen can quickly be adjusted, so that liquid crystal display fills
The backlight illumination for setting each position of screen is consistent.
The present invention further provides a kind of devices for adjusting liquid crystal display screen backlight illumination.
It is the function for the device first embodiment that the present invention adjusts liquid crystal display screen backlight illumination referring to Fig. 6, Fig. 6
Module diagram.
In one embodiment, which includes:
Receiving module 100, for receiving the liquid being scanned from luminance sensor to liquid crystal display screen
Crystal device screen backlight brightness data.
In the present embodiment, to guarantee that the present embodiment can normally be implemented, before implementing the present embodiment, needing will be to school
Positive LCD device backlight is adjusted to minimum brightness, allows liquid crystal display device to show black picture, then by luminance sensor
It is connect with liquid crystal display device.
Liquid crystal display device opens backlight correction function, entry of backlight correction mode according to the open command that user triggers.
After liquid crystal display device entry of backlight correction mode, entire screen of the luminance sensor to liquid crystal display device
It is scanned, obtains liquid crystal display screen backlight brightness data, and by the liquid crystal display screen backlight illumination number
According to being sent to liquid crystal display device.
Specifically, after luminance sensor sends the liquid crystal display screen backlight brightness data, liquid crystal display
Device receives the liquid crystal display screen backlight brightness data.
Module 200 is established, for being based on the liquid crystal display screen size and the liquid crystal display device screen
Curtain backlight brightness data establishes coordinate diagram, and the coordinate diagram includes the corresponding backlight brightness data of each coordinate points.
After receiving the liquid crystal display screen backlight brightness data, liquid crystal display device is based on by software
The liquid crystal display screen size and the liquid crystal display screen backlight brightness data establish coordinate diagram, described
Coordinate diagram includes the corresponding backlight brightness data of each coordinate points.Specifically, pass through software foundation and liquid crystal display screen
Coordinate diagram of the same size, then according to the liquid crystal display screen backlight brightness data by the corresponding backlight of each coordinate
Brightness data mark is into coordinate diagram, for example the backlight brightness data of coordinate (1,2) is 10, then in the corresponding point mark of coordinate (1,2)
Upper 10.
Computing module 300 calculates the screen backlight luminance standard data for choosing screen backlight luminance standard data
The luminance compensation data of backlight brightness data corresponding with each coordinate points in the coordinate diagram.
After establishing coordinate diagram, the backlight brightness data in coordinate diagram is chosen as screen backlight luminance standard data,
And calculate screen backlight luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram
Luminance compensation data.It specifically, can be by each coordinate points in the screen backlight luminance standard data and the coordinate diagram
Corresponding backlight brightness data is successively subtracted each other, and corresponding luminance compensation data are obtained.
First adjustment module 400, for passing through the corresponding back for adjusting liquid crystal display screen of the luminance compensation data
Luminance data.
After obtaining luminance compensation data, according to the corresponding adjusting liquid crystal display screen of the luminance compensation data
Backlight brightness data.So that the backlight brightness data in each of liquid crystal display screen place is the same.
The present embodiment is by receiving the liquid crystal being scanned from luminance sensor to liquid crystal display screen
Showing device screen backlight brightness data；Based on the liquid crystal display screen size and the liquid crystal display screen
Backlight brightness data establishes coordinate diagram, and the coordinate diagram includes the corresponding backlight brightness data of each coordinate points；Choose screen back
Brightness normal data calculates screen backlight luminance standard data back corresponding with each coordinate points in the coordinate diagram
The luminance compensation data of luminance data；It is bright by the corresponding backlight for adjusting liquid crystal display screen of the luminance compensation data
Degree evidence.By the above-mentioned means, being received first from luminance sensor by the software in liquid crystal display device to liquid crystal display
The liquid crystal display screen backlight brightness data that device screen is scanned；Based on the liquid crystal display screen ruler
Very little size and the liquid crystal display screen backlight brightness data establish coordinate diagram, and the coordinate diagram includes each coordinate points pair
The backlight brightness data answered；Choose screen backlight luminance standard data, calculate the screen backlight luminance standard data with it is described
The luminance compensation data of the corresponding backlight brightness data of each coordinate points in coordinate diagram；It is corresponding by the luminance compensation data
The backlight brightness data for adjusting liquid crystal display screen, so that the even back degree of liquid crystal display screen is consistent.
Further, referring to the refinement the functional block diagram that Fig. 7, Fig. 7 are computing module in Fig. 6.
The device first embodiment of liquid crystal display screen backlight illumination, the computing module are adjusted based on the present invention
300 may include:
The corresponding backlight brightness data of each coordinate points in the coordinate diagram is successively compared by comparing unit 310,
Obtain the maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in the coordinate diagram；
The maximum backlight brightness data is chosen for screen backlight luminance standard data by selection unit 320；
Subtract each other unit 330, the screen backlight luminance standard data are corresponding with each coordinate points in the coordinate diagram
Backlight brightness data successively subtract each other, obtain corresponding luminance compensation data.
In the present embodiment, the method for choosing screen backlight luminance standard data can be each seat in the coordinate diagram
The corresponding backlight brightness data of punctuate is successively compared, and obtains the corresponding backlight illumination of each coordinate points in the coordinate diagram
Then the maximum backlight brightness data is chosen for screen backlight luminance standard number by the maximum backlight brightness data in data
According to.The corresponding backlight brightness data of each coordinate points in the coordinate diagram can also be subjected to ascending order row in specific implementation process
Sequence obtains the maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in the coordinate diagram.Then will
Screen backlight luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram is successively subtracted each other,
Obtain the corresponding luminance compensation data of each coordinate.
It further, is another refinement the functional block diagram of computing module in Fig. 6 referring to Fig. 8, Fig. 8.
The device first embodiment of liquid crystal display screen backlight illumination, the computing module are adjusted based on the present invention
300 can also include:
Comparison unit 340, for comparing the corresponding luminance compensation data with preset data；
Storage unit 350 will be described corresponding bright if being greater than preset data for the corresponding luminance compensation data
Offset data is spent to save；
Ignore unit 360, if being less than or equal to preset data for the corresponding luminance compensation data, ignores described
Corresponding luminance compensation data.
In the present embodiment, the corresponding luminance compensation data can be compared with preset data, it is described default
Data are generally zero, and specific access requires to carry out access evidence according to the even back that can be needed according to user.If described corresponding
Luminance compensation data are greater than preset data, then illustrate the corresponding coordinate brightness data of the corresponding luminance compensation data and standard
Brightness data then need to save the corresponding luminance compensation data not in the range of user preset, and fed back,
To be adjusted.If the corresponding luminance compensation data are less than or equal to preset data, illustrate the corresponding brightness
In the range of user preset, then it is described right to ignore for the corresponding coordinate brightness data of offset data and the brightness data of standard
The luminance compensation data answered.
It further, is the refinement the functional block diagram of the first adjustment module in Fig. 6 referring to Fig. 9, Fig. 9.
The device first embodiment of liquid crystal display screen backlight illumination is adjusted based on the present invention, described first adjusts mould
Block 400 may include:
Acquiring unit 410, for obtaining and the backlight brightness data of the luminance compensation data respective coordinates point；
Addition unit 420, for being added the luminance compensation data with the backlight brightness data of respective coordinates point.
In the present embodiment, pass through the corresponding backlight illumination number for adjusting liquid crystal display screen of the luminance compensation data
According to specific implementation method can be with are as follows: obtain the backlight brightness data with the luminance compensation data respective coordinates point first, so
The luminance compensation data are added with the backlight brightness data of respective coordinates point afterwards.So that the backlight of each position is bright in screen
Degree is according to consistent.
Further, 0, Figure 10 is the device second of the invention for adjusting liquid crystal display screen backlight illumination referring to Fig.1
The functional block diagram of embodiment.
The device first embodiment of liquid crystal display screen backlight illumination is adjusted based on the present invention, described device is also wrapped
It includes:
Generation module 500 is based on for generating and saving when the backlight brightness data of liquid crystal display screen is consistent
The luminance compensation data coordinates figure of backlight brightness data；
Module 600 is obtained, in playing process, before picture is replaced, the backlight for obtaining the picture to be bright
Degree evidence；
Second adjustment module 700, for the luminance compensation data coordinates figure based on backlight brightness data according to institute
The backlight brightness data for stating picture is adjusted.
In the present embodiment, after adjusting liquid crystal display screen backlight illumination, liquid crystal display screen at this time
Backlight brightness data it is consistent, by software control generate the luminance compensation data coordinates figure based on backlight brightness data, then
The luminance compensation data coordinates figure is saved.When subsequent user plays out, the back of user's picture to be played is obtained first
Luminance data.Then bright to the backlight of the picture according to the luminance compensation data coordinates figure based on backlight brightness data
Degree evidence is adjusted.
The present embodiment is by generating and saving based on backlight when the backlight brightness data of liquid crystal display screen is consistent
The luminance compensation data coordinates figure of brightness data；In playing process, before picture is replaced, the back of the picture is obtained
Luminance data；According to the luminance compensation data coordinates figure based on backlight brightness data to the backlight illumination number of the picture
According to being adjusted.By the above-mentioned means, the backlight illumination of liquid crystal display screen can quickly be adjusted, so that liquid crystal display fills
The backlight illumination for setting each position of screen is consistent.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of method for adjusting liquid crystal display screen backlight illumination, which is characterized in that the described method comprises the following steps:
LCD device backlight is adjusted to minimum brightness, allows the liquid crystal display device to show black picture, by the liquid
Crystal device and luminance sensor establish connection, wherein the liquid crystal display device is opened according to the open command that user triggers
Backlight correction function is opened, entry of backlight correction mode, the luminance sensor is to the liquid crystal for entering the backlight correction mode
Showing device screen is scanned；
It is bright to receive the liquid crystal display screen backlight being scanned from luminance sensor to liquid crystal display screen
Degree evidence；
It is established and is sat based on the liquid crystal display screen size and the liquid crystal display screen backlight brightness data
It marks on a map, the coordinate diagram includes the corresponding backlight brightness data of each coordinate points；
Choose screen backlight luminance standard data, calculate the screen backlight luminance standard data with it is each in the coordinate diagram
The luminance compensation data of the corresponding backlight brightness data of coordinate points；
Pass through the corresponding backlight brightness data for adjusting liquid crystal display screen of the luminance compensation data；
The selection screen backlight luminance standard data calculate in the screen backlight luminance standard data and the coordinate diagram
The step of luminance compensation data of the corresponding backlight brightness data of each coordinate points includes:
The corresponding backlight brightness data of each coordinate points in the coordinate diagram is successively compared, is obtained in the coordinate diagram
The corresponding backlight brightness data of each coordinate points in maximum backlight brightness data；
Or, the corresponding backlight brightness data of each coordinate points in the coordinate diagram is carried out ascending sort, the coordinate is obtained
The maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in figure；
The maximum backlight brightness data is chosen for screen backlight luminance standard data；
By screen backlight luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram according to
It is secondary to subtract each other, obtain corresponding luminance compensation data.
2. adjusting the method for liquid crystal display screen backlight illumination as described in claim 1, which is characterized in that described by institute
It states screen backlight luminance standard data backlight brightness data corresponding with each coordinate points in the coordinate diagram successively to subtract each other, obtain
Include: after the step of obtaining corresponding luminance compensation data
The corresponding luminance compensation data are compared with preset data；
If the corresponding luminance compensation data are greater than preset data, the corresponding luminance compensation data are saved；
If the corresponding luminance compensation data are less than or equal to preset data, ignore the corresponding luminance compensation data.
3. adjusting the method for liquid crystal display screen backlight illumination as described in claim 1, which is characterized in that described to pass through
The step of luminance compensation data corresponding backlight brightness data for adjusting liquid crystal display screen includes:
Obtain the backlight brightness data with the luminance compensation data respective coordinates point；
The luminance compensation data are added with the backlight brightness data of respective coordinates point.
4. the method as described in any one of claims 1-3 for adjusting liquid crystal display screen backlight illumination, which is characterized in that
It is also wrapped after the step of backlight brightness data for adjusting liquid crystal display screen corresponding by the luminance compensation data
It includes:
When the backlight brightness data of liquid crystal display screen is consistent, generates and save the brightness based on backlight brightness data and mend
Repay data coordinates figure；
In playing process, before picture is replaced, the backlight brightness data of the picture is obtained；
It is carried out according to backlight brightness data of the luminance compensation data coordinates figure based on backlight brightness data to the picture
It adjusts.
5. a kind of device for adjusting liquid crystal display screen backlight illumination, which is characterized in that described device includes:
LCD device backlight is adjusted to minimum brightness, allows the liquid crystal display device to show black picture, by the liquid
Crystal device and luminance sensor establish connection, wherein the liquid crystal display device is opened according to the open command that user triggers
Backlight correction function is opened, entry of backlight correction mode, the luminance sensor is to the liquid crystal for entering the backlight correction mode
Showing device screen is scanned；
Receiving module fills the liquid crystal display that liquid crystal display screen is scanned from luminance sensor for receiving
Set screen backlight brightness data；
Module is established, for bright based on the liquid crystal display screen size and the liquid crystal display screen backlight
Degree includes the corresponding backlight brightness data of each coordinate points according to coordinate diagram, the coordinate diagram is established；
Computing module, for choosing screen backlight luminance standard data, calculate the screen backlight luminance standard data with it is described
The luminance compensation data of the corresponding backlight brightness data of each coordinate points in coordinate diagram；
First adjustment module, for passing through the corresponding backlight illumination number for adjusting liquid crystal display screen of the luminance compensation data
According to；
The computing module includes:
Comparing unit is obtained for the corresponding backlight brightness data of each coordinate points in the coordinate diagram to be successively compared
Take the maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in the coordinate diagram；
Sequencing unit is obtained for the corresponding backlight brightness data of each coordinate points in the coordinate diagram to be carried out ascending sort
Take the maximum backlight brightness data in the corresponding backlight brightness data of each coordinate points in the coordinate diagram；
Selection unit, for the maximum backlight brightness data to be chosen for screen backlight luminance standard data；
Subtract each other unit, for by screen backlight luminance standard data back corresponding with each coordinate points in the coordinate diagram
Luminance data successively subtracts each other, and obtains corresponding luminance compensation data.
6. adjusting the device of liquid crystal display screen backlight illumination as claimed in claim 5, which is characterized in that the calculating
Module further include:
Comparison unit, for comparing the corresponding luminance compensation data with preset data；
Storage unit, if being greater than preset data for the corresponding luminance compensation data, by the corresponding luminance compensation
Data save；
Ignore unit, if being less than or equal to preset data for the corresponding luminance compensation data, ignores described corresponding
Luminance compensation data.
7. adjusting the device of liquid crystal display screen backlight illumination as claimed in claim 5, which is characterized in that described first
Adjustment module includes:
Acquiring unit, for obtaining and the backlight brightness data of the luminance compensation data respective coordinates point；
Addition unit, for being added the luminance compensation data with the backlight brightness data of respective coordinates point.
8. such as the device of the described in any item adjusting liquid crystal display screen backlight illuminations of claim 5-7, which is characterized in that
Described device further include:
Generation module, for when the backlight brightness data of liquid crystal display screen is consistent, generating and saving bright based on backlight
The luminance compensation data coordinates figure of degree evidence；
Module is obtained, for before picture is replaced, obtaining the backlight brightness data of the picture in playing process；
Second adjustment module, for the luminance compensation data coordinates figure based on backlight brightness data according to the picture
Backlight brightness data is adjusted.
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| CN201611070755.4A CN106486070B (en) | 2016-11-25 | 2016-11-25 | Adjust the method and device of liquid crystal display screen backlight illumination |
| PCT/CN2016/112859 WO2018094812A1 (en) | 2016-11-25 | 2016-12-29 | Method and device for adjusting backlight brightness of liquid crystal display device screen |
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| CN201611070755.4A CN106486070B (en) | 2016-11-25 | 2016-11-25 | Adjust the method and device of liquid crystal display screen backlight illumination |
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| CN110390911B (en) * | 2018-04-19 | 2022-03-25 | 中兴通讯股份有限公司 | Display screen backlight brightness control method of electronic equipment and electronic equipment |
| CN109889303B (en) * | 2018-12-28 | 2021-10-22 | 努比亚技术有限公司 | Video playing mode switching method and device and computer readable storage medium |
| CN111901543B (en) * | 2020-08-05 | 2021-06-22 | 四川长虹电器股份有限公司 | Method for improving uniformity of liquid crystal display television |
| CN111681620B (en) * | 2020-08-11 | 2020-11-20 | 深圳市Tcl高新技术开发有限公司 | Display control method, display device and computer readable storage medium |
| CN112530331B (en) * | 2020-11-24 | 2022-09-23 | 昆山国显光电有限公司 | Information detection method and device for split display screen and information detection equipment |
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| JP2004198875A (en) * | 2002-12-20 | 2004-07-15 | Casio Comput Co Ltd | Electronic equipment |
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| CN102132200B (en) * | 2009-09-02 | 2014-02-19 | 光远科技股份有限公司 | Rapid detection method of led backlight plate liquid crystal display attenuation and the display |
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| CN1908748A (en) * | 2005-08-05 | 2007-02-07 | 三星电子株式会社 | Backlight unit, display apparatus comprising the same and control method thereof |
| CN101470284A (en) * | 2007-12-27 | 2009-07-01 | 乐金显示有限公司 | Liquid crystal display and driving method thereof |
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