CN106531125B - Method of adjustment, device and the television set of image display brightness - Google Patents
Method of adjustment, device and the television set of image display brightness Download PDFInfo
- Publication number
- CN106531125B CN106531125B CN201710006111.7A CN201710006111A CN106531125B CN 106531125 B CN106531125 B CN 106531125B CN 201710006111 A CN201710006111 A CN 201710006111A CN 106531125 B CN106531125 B CN 106531125B
- Authority
- CN
- China
- Prior art keywords
- image
- brightness
- subregion
- screen
- compensating
- 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.)
- Active
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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- 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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention discloses a kind of method of adjustment of image display brightness, device and television set, when being applicable in the method for adjustment, the display parameters of setting screen or image first, generate the characteristic coefficient table that the screen picture is shown, then when receiving the input of signal source images, it is separated into the only original gradation figure comprising luminance information and only comprising the chromatic diagram of colouring information, it is compensated referring next to pixel intensity of the characteristic coefficient table to the original gradation figure, obtain compensating for gray-scale figure, finally compensating for gray-scale figure and chromatic diagram combined color image signal are shown on the screen, when driving screen to perform image display, the irregularity in brightness in conjunction with existing for screen itself, the pixel intensity of picture signal is compensated, improve the display quality of image frame, it does not need to increase additional cost simultaneously, it realizes simple, with extensive Application.
Description
Technical field
The present invention relates to image display technology field more particularly to a kind of method of adjustment of image display brightness, device and
Television set.
Background technique
With the improvement of people's life quality, also proposed requirements at the higher level to the image picture quality of display product, and scheme
As one of the important factor in order of image quality is exactly the brightness of image frame.In order to meet the brightness needs of image frame, mesh
It is preceding it is main processing directly carried out to luminance signal using image processing algorithm or by adjusting backlight luminance by the way of change
The brightness that image is shown.But the application of these methods is complicated, at high cost, and the existing brightness that do not account for display screen itself
Uneven and distortion.
Summary of the invention
The main purpose of the present invention is to provide a kind of methods of adjustment of image display brightness, it is intended in conjunction with display screen itself
Existing irregularity in brightness carries out luminance compensation to picture signal, improves the display quality of image frame.
To achieve the above object, the method for adjustment of image display brightness proposed by the present invention, comprising the following steps:
The display parameters of setting screen or image, and according to the display parameters formation characteristic coefficient table；
Signal source images are received, and by the signal source image procossing at original gradation figure and chromatic diagram；
The brightness of each pixel of the original gradation figure is compensated referring to the characteristic coefficient table, obtains compensation ash
Degree figure；
By the compensating for gray-scale figure and chromatic diagram combined color image signal, and drives and shield according to the colour picture signal
Curtain is shown.
Further, the method for adjustment further include:
Compensating for gray-scale figure is processed into after area grayscale figure and is overlapped with the colour picture signal, mixed image is formed
Signal, and shown according to mixed image signal driving screen.
Further, the display parameters of the setting screen or image, and according to the display parameters formation characteristic coefficient
The step of table, specifically includes:
The partition information of setting screen or image, benchmark white image and reference data brightness value L pref, and stored；
The benchmark white image of corresponding length-width ratio is obtained according to the length-width ratio of screen, driving screen shows white image；
Partition information is obtained, and the white image for screen being shown according to the partition information is divided into M*N subregion；
Successively obtain the brightness value L p of each subregion actual displayedm*n, and according to the reference data brightness value L prefSuccessively
Calculate the characteristic coefficient T of each subregionm*n, generate the characteristic coefficient table, the Tm*n=Lpm*n/Lpref。
Further, described that the brightness of each pixel of the original gradation figure is mended referring to the characteristic coefficient table
The step of repaying, obtaining compensating for gray-scale figure, specifically includes:
Partition information is obtained, the original gradation figure is divided into M*N subregion according to the partition information；
The brightness Bp of each pixel in each subregion is successively obtained, and obtains characteristic coefficient from the characteristic coefficient table
Tm*n, utilize formula Bp/Tm*nSuccessively the brightness of each pixel in each subregion is compensated；
After detecting that compensation is completed in the brightness of each pixel in M*N subregion, compensating for gray-scale figure is exported.
Further, described compensating for gray-scale figure is processed into after area grayscale figure is folded with the colour picture signal
It the step of adding, forming mixed image signal, specifically includes:
Partition information is obtained, the compensating for gray-scale figure is divided into M*N subregion according to the partition information；
The zone luminance value of each subregion is successively calculated, prime area grayscale image is formed；
Diminution ratio is set, obtains area grayscale after the prime area grayscale image is zoomed in and out in the diminution ratio
Figure；
The colour picture signal is carried out layering with area grayscale figure to be superimposed, forms mixed image signal.
Another object of the present invention is to propose a kind of adjustment device of image display brightness, which includes:
The display parameters of property list generation module, setting screen or image, and according to display parameters formation characteristic system
Number table；
Chroma of images separation module receives signal source images, and by the signal source image procossing at original gradation figure and
Chromatic diagram；
Pixel intensity compensating module, referring to the characteristic coefficient table to the brightness of each pixel of the original gradation figure into
Row compensation, obtains compensating for gray-scale figure；
Colour picture signal synthesis module, by the compensating for gray-scale figure and chromatic diagram combined color image signal；
Driver module is shown according to colour picture signal driving screen.
Further, the adjustment device further include:
Compensating for gray-scale figure is processed into after area grayscale figure and the colour picture signal by mixed image signal synthesizing module
It is overlapped, forms mixed image signal；
The driver module is shown according to mixed image signal driving screen.
Further, the property list generation module includes:
Partition information, benchmark white image and the reference data brightness value of parameter setting unit, setting screen or image
Lpref, and stored；
White image display unit, the benchmark white image of corresponding length-width ratio is obtained according to the length-width ratio of screen, and driving screen is aobvious
White image is shown；
First zoning unit obtains partition information, and the white image for showing screen according to the partition information is divided into M*N
Subregion；
Characteristic coefficient table generation unit successively obtains the brightness value L p of each subregion actual displayedm*n, and according to the ginseng
Examine Benchmark brightness value LprefSuccessively calculate the characteristic coefficient T of each subregionm*n, generate the characteristic coefficient table, the Tm*n=
Lpm*n/Lpref。
Further, the pixel intensity compensating module includes:
Second zoning unit obtains partition information, and the original gradation figure is divided into M*N points according to the partition information
Area；
Pixel intensity compensating unit, successively obtains the brightness Bp of each pixel in each subregion, and from the characteristic coefficient
Characteristic coefficient T is obtained in tablem*n, utilize formula Bp/Tm*nSuccessively the brightness of each pixel in each subregion is compensated；
Compensating for gray-scale figure output unit, after detecting that compensation is completed in the brightness of each pixel in M*N subregion, output
Compensating for gray-scale figure.
Further, the mixed image signal synthesizing module includes:
Third zoning unit obtains partition information, and the compensating for gray-scale figure is divided into M*N points according to the partition information
Area；
Prime area grayscale image forms unit, successively calculates the zone luminance value of each subregion, forms prime area gray scale
Figure；
Area grayscale figure sets diminution ratio at unit, by the prime area grayscale image in the diminution ratio into
Area grayscale figure is obtained after row scaling；
The colour picture signal is carried out layering with area grayscale figure and is superimposed by mixed image signal synthesis unit, is formed
Mixed image signal.
The present invention also proposes a kind of television set, which includes the adjustment device of image display brightness as described above.
The method of adjustment of image display brightness of the invention is adjusted for the image display brightness to display screen,
To improve image displaying quality.When being applicable in the method for adjustment, display parameters of setting screen or image first generate the screen
The characteristic coefficient table that image is shown is processed into only then when receiving the input of signal source images comprising image luminance information
Original gradation figure and only include image color information chromatic diagram, referring next to characteristic coefficient table to the original gradation figure
Pixel intensity compensates, and obtains compensating for gray-scale figure, is finally shielding compensating for gray-scale figure and chromatic diagram combined color image signal
It is shown on curtain, the method for adjustment of image display brightness of the invention is when driving screen to perform image display, in conjunction with screen
Existing irregularity in brightness itself, compensates the pixel intensity of picture signal, improves the display quality of image frame,
It does not need to increase additional cost simultaneously, realize simply, it is with a wide range of applications.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the flow chart of one embodiment of method of adjustment of image display brightness of the invention；
Fig. 2 is the specific flow chart of step S10 in Fig. 1；
Fig. 3 is the specific flow chart of step S30 in Fig. 1；
Fig. 4 is the subregion schematic diagram of screen or image of the invention；
Fig. 5 is the functional block diagram of adjustment one embodiment of device of image display brightness of the invention；
Fig. 6 is the structural schematic diagram of property list generation module in Fig. 5；
Fig. 7 is the structural schematic diagram of pixel intensity compensating module in Fig. 6；
Fig. 8 is the structural schematic diagram of mixed image signal synthesizing module in Fig. 7.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | The adjustment device of image display brightness | 32 | Pixel intensity compensating unit |
| 10 | Property list generation module | 33 | Compensating for gray-scale figure output unit |
| 11 | Parameter setting unit | 40 | Colour picture signal synthesis module |
| 12 | White image display unit | 50 | Driver module |
| 13 | First zoning unit | 60 | Mixed image signal synthesizing module |
| 14 | Property list generation unit | 61 | Third zoning unit |
| 20 | Chroma of images separation module | 62 | Prime area grayscale image forms unit |
| 30 | Pixel intensity compensating module | 63 | Area grayscale figure is at unit |
| 31 | Second zoning unit | 64 | Mixed image signal synthesis unit |
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 proposes a kind of method of adjustment of image display brightness, the display screen applied to media display devices.
Referring to Fig.1, Fig. 1 is the flow chart of one embodiment of method of adjustment of image display brightness of the present invention.
In the present embodiment, the method for adjustment of the image display brightness, comprising the following steps:
S10: the display parameters of setting screen or image, and according to the display parameters formation characteristic coefficient table；
S20: signal source images are received, and by the signal source image procossing at original gradation figure and chromatic diagram；
S30: the brightness of each pixel of the original gradation figure is compensated referring to the characteristic coefficient table, is mended
Repay grayscale image；
S40: it is driven by the compensating for gray-scale figure and chromatic diagram combined color image signal, and according to the colour picture signal
Dynamic screen is shown.
In the present embodiment, the image of media display devices is shown in the method for adjustment using the image display brightness bright
When degree is adjusted, the screen of the media display devices such as television set or the signal source images of input are first depending on, the screen is set
The display parameters of curtain or image, the display parameters include the partition information divided to the screen or image, the reference white of setting
Image and reference data brightness value L pref, and according to partition information, benchmark white image and the reference data brightness value set
LprefThe characteristic coefficient for calculating each subregion ultimately produces characteristic coefficient table.
After characteristic coefficient table generation, the input of signal source images is received, and will be in the signal source images that received
Brightness and color separated, form the original gradation figure that only has image luminance information and only comprising image color information
Chromatic diagram.After exporting the original gradation figure, with further reference to the characteristic coefficient table to each in original gradation figure
The brightness of pixel compensates, the grayscale image after obtaining luminance compensation, to avoid display screen since the physical characteristic of itself makes
The brightness irregularities that will cause in display brightness are obtained, are mended by each image pixel intensity to original gradation figure
It repays, when being shown after compensated grayscale image is synthesized with chromatic diagram, can be improved the overall brightness of screen, improve display
Image quality of the screen when performing image display.
After obtaining the grayscale image after luminance compensation, its chromatic diagram isolated with original signal source images is closed
It is shaped to new colour picture signal, when input panel curtain carries out driving display, can obtain what display quality significantly improved
Color image；In addition, in other embodiments, can also directly be performed image display by the reference white image-driven set.
When being applicable in the method for adjustment, display parameters of setting screen or image first generate what the screen picture was shown
Characteristic coefficient table is processed into original gradation only comprising image luminance information then when receiving the input of signal source images
Figure and only include image color information chromatic diagram, referring next to characteristic coefficient table to the pixel intensity of the original gradation figure into
Row compensation, obtains compensating for gray-scale figure, finally shows compensating for gray-scale figure and chromatic diagram combined color image signal on the screen
Show, when driving screen to perform image display, the irregularity in brightness in conjunction with existing for screen itself is bright to the pixel of picture signal
Degree compensates, and improves the display quality of image frame, while not needing to increase additional cost, realizes simply, has wide
General application.
Further, the method for adjustment further include:
Compensating for gray-scale figure is processed into after area grayscale figure and is overlapped with the colour picture signal, mixed image is formed
Signal, and shown according to mixed image signal driving screen.
After obtaining the grayscale image after luminance compensation, its chromatic diagram isolated with original signal source images is closed
It is shaped to new colour picture signal, when input panel curtain carries out driving display, can obtain what display quality significantly improved
Color image, in order to which the technology sense of brightness adjustment is presented to user, enhances the surcharge of display screen or media display devices,
Brightness processed further can also be carried out to it after obtaining the compensating for gray-scale figure after luminance compensation, and by a certain percentage after scaling
Area grayscale figure is obtained, layering is then carried out with colour picture signal and is superimposed to form mixed image signal, so as to by a certain percentage
It is superimposed on display screen and shows.
Further, reference Fig. 2, the method for adjustment of image display brightness based on the above embodiment, step S10, specifically
Include:
S11: the partition information of setting screen or image, benchmark white image and reference data brightness value L pref, and deposited
Storage；
S12: obtaining the benchmark white image of corresponding length-width ratio according to the length-width ratio of screen, and driving screen shows white image；
S13: obtaining partition information, and the white image for showing screen according to the partition information is divided into M*N subregion；
S14: the brightness value L p of each subregion actual displayed is successively obtainedm*n, and according to the reference data brightness value L pref
Successively calculate the characteristic coefficient T of each subregionm*n, generate the characteristic coefficient table, the Tm*n=Lpm*n/Lpref。
In the present embodiment, the screen of setting or the display parameters of image include partition information, benchmark white image and reference
Benchmark brightness value Lpref, it is such as 500nit by the brightness settings of benchmark white image, further as shown in figure 4, the partition information
Including number of partitions M*N, the number m*n of each subregion and the corresponding regional scope of each subregion m*n, m value be 1,2,
3 ... M, n value are 1,2,3 ... N, and subregion can be uniform segmentation, are also possible to non-homogeneous subregion, uniform segmentation it is each
The regional scope size of subregion is identical, the regional scope of each subregion of non-homogeneous subregion might not size it is identical；In Fig. 4
In, it is identical as the regional scope size of other subregions in uniform segmentation by taking subregion 4*5 as an example, and in Nonuniform Domain Simulation of Reservoir
In, it is then not necessarily identical as the regional scope size of other subregions.
When according to the display parameters formation characteristic coefficient table, the corresponding length is obtained according to the length-width ratio of display screen first
The benchmark white image of wide ratio then needs to obtain the benchmark white image of 16:9 for example, the display screen shows dimensions as 16:9,
And white image is shown according to the reference white image-driven screen, then obtain the subregion letter for setting and storing in above-mentioned steps
Breath, the white image for showing screen according to the partition information are divided into M*N subregion, and it is practical successively to obtain each subregion in screen
The brightness value L p of displaym*n, further obtain the reference data brightness value L p of settingref, successively calculate the spy of each screen partition
Property coefficient Tm*n, Tm*n=Lpm*n/Lpref, a characteristic coefficient table is generated, each list cell value is in the characteristic coefficient table
Characteristic coefficient Tm*n。
Further, reference Fig. 3, the method for adjustment of image display brightness based on the above embodiment, step S30, specifically
Include:
S31: partition information is obtained, the original gradation figure is divided into M*N subregion according to the partition information；
S32: successively obtaining the brightness Bp of each pixel in each subregion, and characteristic system is obtained from the characteristic coefficient table
Number Tm*n, utilize formula Bp/Tm*nSuccessively the brightness of each pixel in each subregion is compensated；
S33: after detecting that compensation is completed in the brightness of each pixel in M*N subregion, compensating for gray-scale figure is exported.
In the present embodiment, when compensating to the pixel of original gradation figure, subregion is obtained from characteristic coefficient table first
Then the original gradation figure received is divided into M*N subregion according to the partition information, then successively obtained each by information
The brightness Bp of each pixel in subregion, and characteristic coefficient T is further obtained from the characteristic coefficient tablem*n, then with each
The brightness Bp of each pixel of subregion characteristic coefficient T corresponding with each subregionm*nDivision is done, with each pixel of each subregion
Luminance compensation is carried out, namely uses formula Bp/Tm*nSuccessively the brightness of each pixel in subregion is compensated, completes m*n points
In area after the compensation of all pixels brightness, pixel intensity compensation is carried out into next subregion (m+1) * n or subregion m* (n+1),
Until exporting compensating for gray-scale figure after detecting the luminance compensation for completing all pixels in each subregion of M*N.
Further, described compensating for gray-scale figure is processed into after area grayscale figure is folded with the colour picture signal
It the step of adding, forming mixed image signal, specifically includes:
Partition information is obtained, the compensating for gray-scale figure is divided into M*N subregion according to the partition information；
The zone luminance value of each subregion is successively calculated, prime area grayscale image is formed；
Diminution ratio is set, obtains area grayscale after the prime area grayscale image is zoomed in and out in the diminution ratio
Figure；
The colour picture signal is carried out layering with area grayscale figure to be superimposed, forms mixed image signal.
In the present embodiment, in order to which technology sense, enhancing display screen or media that brightness adjustment is presented to user show and set
Standby surcharge can also further carry out brightness processed after obtaining the compensating for gray-scale figure after luminance compensation to it, namely
Partition information is obtained from characteristic coefficient table, and the compensating for gray-scale figure received is then divided into M*N according to the partition information
Then a subregion calculates the average value of all pixels brightness in m*n subregion, it is m*n points that the average value of pixel intensity, which is regarded,
The zone luminance value in area after the zone luminance value for successively calculating each subregion, forms what the zone luminance value of M*N subregion formed
Prime area grayscale image resets a diminution ratio, after the prime area grayscale image is zoomed in and out in the diminution ratio
Area grayscale figure is obtained, when driving screen to be shown, obtained area grayscale figure and above-mentioned colour picture signal are carried out
Layering superposition forms mixed image signal Overlapping display on the screen, and both visual senses of brightness adjustment can be presented to user at any time,
Increase the surcharge of product.
Present invention further propose that a kind of adjustment device of image display brightness, is applied to media display devices.
Referring to the functional block diagram for adjustment one embodiment of device that Fig. 5, Fig. 5 are image display brightness of the invention.
In the present embodiment, which includes:
The display parameters of property list generation module 10, setting screen or image, and according to the display parameters formation characteristic
Coefficient table；
Chroma of images separation module 20 receives signal source images, and by the signal source image procossing at original gradation figure
And chromatic diagram；
Pixel intensity compensating module 30, the brightness referring to the characteristic coefficient table to each pixel of the original gradation figure
It compensates, obtains compensating for gray-scale figure；
Colour picture signal synthesis module 40, by the compensating for gray-scale figure and chromatic diagram combined color image signal；
Driver module 50 is shown according to colour picture signal driving screen.
In the present embodiment, the image of media display devices is shown in the adjustment device using the image display brightness bright
When degree is adjusted, by property list generation module 10 according to the screen of the media display devices such as television set or the signal source of input
Image, sets the display parameters of the screen or image, the display parameters include the partition information that the screen or image are divided,
The benchmark white image and reference data brightness value L p of settingref, and according to partition information, benchmark white image and the ginseng set
Examine Benchmark brightness value LprefThe characteristic coefficient for calculating each subregion ultimately produces characteristic coefficient table.
After characteristic coefficient table generation, the input of signal source images is received by chroma of images separation module 20, and will
The brightness in signal source images and color received is separated, formed the original gradation figure for only having image luminance information and
It only include the chromatic diagram of image color information.After exporting the original gradation figure, by pixel intensity compensating module 30 referring to institute
It states characteristic coefficient table to compensate the brightness of each pixel in original gradation figure, the grayscale image after obtaining luminance compensation,
To avoid display screen since the physical characteristic of itself makes the brightness irregularities that will cause in display brightness, by original
Each image pixel intensity of grayscale image compensates, when being shown after compensated grayscale image is synthesized with chromatic diagram,
The overall brightness that can be improved screen improves image quality of the display screen when performing image display.
After obtaining the grayscale image after luminance compensation, colour picture signal synthesis module 40 is by the compensating for gray-scale figure and former
The chromatic diagram that the signal source images come are isolated carries out being synthetically formed new colour picture signal, and input panel curtain is driven by display
When dynamic model block 50 carries out driving display, the color image that display quality significantly improves can be obtained；In addition, in other embodiments
In, it can also directly be performed image display by the reference white image-driven set.
When being applicable in the adjustment device 100, by 10 setting screen of property list generation module or the display parameters of image, generate
The characteristic coefficient table that the screen picture is shown, then when receiving the input of signal source images, by chroma of images separation module 20
Manage into only comprising image luminance information original gradation figure and only comprising image color information chromatic diagram, then by pixel intensity
Compensating module 30 is compensated referring to pixel intensity of the characteristic coefficient table to the original gradation figure, obtains compensating for gray-scale figure, most
Afterwards by colour picture signal synthesis module 40 by compensating for gray-scale figure and chromatic diagram combined color image signal, by driver module
50 driving screens are shown, when driver module 50 drives screen to perform image display, in conjunction with existing for screen itself
Irregularity in brightness compensates the pixel intensity of picture signal, improves the display quality of image frame, does not need simultaneously
Increase additional cost, realizes simply, it is with a wide range of applications.
Further, referring to Fig. 5, the adjustment device 100 further include:
Compensating for gray-scale figure is processed into after area grayscale figure and believes with the color image by mixed image signal synthesizing module 60
It number is overlapped, forms mixed image signal；
The driver module 50 is shown according to mixed image signal driving screen.
In the present embodiment, in order to which technology sense, enhancing display screen or media that brightness adjustment is presented to user show and set
Standby surcharge, can also be by mixed image signal synthesizing module 60 into one after obtaining the compensating for gray-scale figure after luminance compensation
Step carries out brightness processed to it, and obtains area grayscale figure after scaling by a certain percentage, is then divided with colour picture signal
Layer superposition forms mixed image signal, so that driver module 50 is shown according to mixed image signal driving screen
When, it can be superimposed on by a certain percentage on display screen.
Further, referring to Fig. 6, the property list generation module 10 includes:
Partition information, benchmark white image and the reference data brightness value of parameter setting unit 11, setting screen or image
Lpref, and stored；
White image display unit 12 obtains the benchmark white image of corresponding length-width ratio according to the length-width ratio of screen, drives screen
Show white image；
First zoning unit 13, obtains partition information, and the white image for showing screen according to the partition information is divided into M*N
A subregion；
Characteristic coefficient table generation unit 14 successively obtains the brightness value L p of each subregion actual displayedm*n, and according to described
Reference data brightness value L prefSuccessively calculate the characteristic coefficient T of each subregionm*n, generate the characteristic coefficient table, the Tm*n=
Lpm*n/Lpref。
In the present embodiment, the display parameters of parameter setting unit 11 is set screen or image include partition information, base
Quasi- white image and reference data brightness value L pref, it is such as 500nit by the brightness settings of benchmark white image, further such as Fig. 4 institute
Showing, the partition information includes the corresponding regional scope of number of partitions M*N, the number m*n of each subregion and each subregion m*n,
M value is 1,2,3 ... M, and n value is 1,2,3 ... N, and subregion can be uniform segmentation, be also possible to non-homogeneous subregion,
The regional scope size of each subregion of even subregion is identical, and the regional scope of each subregion of non-homogeneous subregion might not size
It is identical；It is identical as the regional scope size of other subregions in uniform segmentation by taking subregion 4*5 as an example in Fig. 4, and non-
It is then not necessarily identical as the regional scope size of other subregions in homogeneous area.
When according to the display parameters formation characteristic coefficient table, first by white image display unit 12 according to display screen
The benchmark white image that length-width ratio obtains the corresponding length-width ratio then needs to obtain for example, the display screen shows dimensions as 16:9
The benchmark white image of 16:9, and white image is shown according to the reference white image-driven screen, then by the first zoning unit 13
The partition information for setting and storing in above-mentioned steps is obtained, and the white image for screen being shown according to the partition information is divided into M*N
Subregion is successively obtained the brightness value L p of each subregion actual displayed in screen by characteristic coefficient table generation unit 14m*n, into one
Step obtains the reference data brightness value L p of settingref, successively calculate the characteristic coefficient T of each screen partitionm*n, Tm*n=Lpm*n/
Lpref, a characteristic coefficient table is generated, each list cell value is characteristic coefficient T in the characteristic coefficient tablem*n。
Further, referring to Fig. 7, the pixel intensity compensating module 30 includes:
Second zoning unit 31 obtains partition information, and the original gradation figure is divided into M*N according to the partition information
Subregion；
Pixel intensity compensating unit 32, successively obtains the brightness Bp of each pixel in each subregion, and from the characteristic system
Characteristic coefficient T is obtained in number tablem*n, utilize formula Bp/Tm*nSuccessively the brightness of each pixel in each subregion is compensated；
Compensating for gray-scale figure output unit 33, it is defeated after detecting that compensation is completed in the brightness of each pixel in M*N subregion
Compensating for gray-scale figure out.
In the present embodiment, when being compensated to the pixel of original gradation figure, first by the second zoning unit 31 from characteristic
Partition information is obtained in coefficient table, and the original gradation figure received is then divided into M*N subregion according to the partition information,
Then the brightness Bp of each pixel in each subregion is successively obtained by pixel intensity compensating unit 32, and further from the spy
Characteristic coefficient T is obtained in property coefficient tablem*n, then with the brightness Bp spy corresponding with each subregion of each pixel of each subregion
Property coefficient Tm*nDivision is done, luminance compensation is carried out with each pixel of each subregion, namely use formula Bp/Tm*nSuccessively to subregion
The brightness of interior each pixel compensates, and completes in m*n subregion after the compensation of all pixels brightness, into next subregion (m
+ 1) * n or subregion m* (n+1) carries out pixel intensity compensation, until compensating for gray-scale figure output unit 33 detects each point of M*N of completion
After the luminance compensation of all pixels in area, compensating for gray-scale figure is exported.
Further, referring to Fig. 8, the mixed image signal synthesizing module 60 includes:
Third zoning unit 61 obtains partition information, and the compensating for gray-scale figure is divided into M*N according to the partition information
Subregion；
Prime area grayscale image forms unit 62, successively calculates the zone luminance value of each subregion, forms prime area ash
Degree figure；
Area grayscale figure sets diminution ratio, by the prime area grayscale image in the diminution ratio at unit 63
Area grayscale figure is obtained after zooming in and out；
The colour picture signal is carried out layering with area grayscale figure and is superimposed by mixed image signal synthesis unit 64, shape
At mixed image signal.
In the present embodiment, in order to which technology sense, enhancing display screen or media that brightness adjustment is presented to user show and set
Standby surcharge can also further carry out brightness processed after obtaining the compensating for gray-scale figure after luminance compensation to it, namely
From by third zoning unit 61 partition information is obtained from characteristic coefficient table, then receive according to the partition information by described
Compensating for gray-scale figure is divided into M*N subregion, then by prime area grayscale image stroke single Yuan 62 calculate all pixels in m*n subregion
The average value of brightness successively calculates the area of each subregion by the average value of pixel intensity as the zone luminance value for being m*n subregion
After the brightness value of domain, the prime area grayscale image of the zone luminance value composition of M*N subregion is formed, then by area grayscale figure Cheng Dan
Ratio is reduced in 63 setting one of member, obtains area grayscale after the prime area grayscale image is zoomed in and out in the diminution ratio
Figure, when driving screen to be shown, by mixed image signal synthesis unit 64 by obtained area grayscale figure and above-mentioned colour
Picture signal carries out layering superposition, forms mixed image signal Overlapping display on the screen, brightness can be presented to user at any time
Both visual senses of adjustment, increase the surcharge of product.
The present invention also proposes a kind of television set, which includes the adjustment device of image display brightness as described above
100。
The television set of this implementation, the adjustment device 100 including image display brightness as described above, in other embodiments
In, which can also be computer, mobile phone or other media display devices；The adjustment device 100 is being applicable in television set
When the brightness of display image is adjusted, by 10 setting screen of property list generation module or the display parameters of image, the screen is generated
The characteristic coefficient table that curtain image is shown is processed into then when receiving the input of signal source images by chroma of images separation module 20
Only comprising image luminance information original gradation figure and only comprising image color information chromatic diagram, then compensated by pixel intensity
Module 30 is compensated referring to pixel intensity of the characteristic coefficient table to the original gradation figure, obtains compensating for gray-scale figure, finally by
Colour picture signal synthesis module 40 is driven compensating for gray-scale figure and chromatic diagram combined color image signal by driver module 50
Dynamic screen is shown, when driver module 50 drives screen to perform image display, the brightness in conjunction with existing for screen itself
Inhomogeneities compensates the pixel intensity of picture signal, improves the display quality of image frame, while not needing to increase
Additional cost is realized simply, with a wide range of applications.
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 (11)
1. a kind of method of adjustment of image display brightness, which is characterized in that the method for adjustment the following steps are included:
The display parameters of setting screen or image, and according to the display parameters formation characteristic coefficient table；
Signal source images are received, and by the signal source image procossing at original gradation figure and chromatic diagram；
The brightness of each pixel of the original gradation figure is compensated referring to the characteristic coefficient table, obtains compensating for gray-scale
Figure；
By the compensating for gray-scale figure and chromatic diagram combined color image signal, and according to the colour picture signal drive screen into
Row display.
2. the method for adjustment of image display brightness according to claim 1, which is characterized in that the method for adjustment further include:
Compensating for gray-scale figure is processed into after area grayscale figure and is overlapped with the colour picture signal, mixed image letter is formed
Number, and shown according to mixed image signal driving screen.
3. the method for adjustment of image display brightness according to claim 2, which is characterized in that the setting screen or image
Display parameters, and the step of according to the display parameters formation characteristic coefficient table specifically include:
The partition information of setting screen or image, benchmark white image and reference data brightness value L pref, and stored；
The benchmark white image of corresponding length-width ratio is obtained according to the length-width ratio of screen, driving screen shows white image；
Partition information is obtained, and the white image for screen being shown according to the partition information is divided into M*N subregion；
Successively obtain the brightness value L p of each subregion actual displayedm*n, and according to the reference data brightness value L prefSuccessively calculate
The characteristic coefficient T of each subregionm*n, generate the characteristic coefficient table, the Tm*n=Lpm*n/Lpref。
4. the method for adjustment of image display brightness according to claim 3, which is characterized in that described referring to the characteristic system
The step of number table compensates to the brightness of each pixel of the original gradation figure, obtains compensating for gray-scale figure, specifically includes:
Partition information is obtained, the original gradation figure is divided into M*N subregion according to the partition information；
The brightness Bp of each pixel in each subregion is successively obtained, and obtains characteristic coefficient T from the characteristic coefficient tablem*n, benefit
With formula Bp/Tm*nSuccessively the brightness of each pixel in each subregion is compensated；
After detecting that compensation is completed in the brightness of each pixel in M*N subregion, compensating for gray-scale figure is exported.
5. the method for adjustment of image display brightness according to claim 3, which is characterized in that it is described will be at compensating for gray-scale figure
The step of being overlapped after managing into area grayscale figure with the colour picture signal, forming mixed image signal, specifically includes:
Partition information is obtained, the compensating for gray-scale figure is divided into M*N subregion according to the partition information；
The zone luminance value of each subregion is successively calculated, prime area grayscale image is formed；
Diminution ratio is set, obtains area grayscale figure after the prime area grayscale image is zoomed in and out in the diminution ratio；
The colour picture signal is carried out layering with area grayscale figure to be superimposed, forms mixed image signal.
6. a kind of adjustment device of image display brightness, which is characterized in that the adjustment device includes:
The display parameters of property list generation module, setting screen or image, and according to the display parameters formation characteristic coefficient table；
Chroma of images separation module receives signal source images, and by the signal source image procossing at original gradation figure and coloration
Figure；
Pixel intensity compensating module mends the brightness of each pixel of the original gradation figure referring to the characteristic coefficient table
It repays, obtains compensating for gray-scale figure；
Colour picture signal synthesis module, by the compensating for gray-scale figure and chromatic diagram combined color image signal；
Driver module is shown according to colour picture signal driving screen.
7. the adjustment device of image display brightness according to claim 6, which is characterized in that the adjustment device further include:
Compensating for gray-scale figure is processed into after area grayscale figure and carries out with the colour picture signal by mixed image signal synthesizing module
Superposition forms mixed image signal；
The driver module is shown according to mixed image signal driving screen.
8. the adjustment device of image display brightness according to claim 7, which is characterized in that the property list generation module
Include:
Partition information, benchmark white image and the reference data brightness value L p of parameter setting unit, setting screen or imageref, and
It is stored；
White image display unit, the benchmark white image of corresponding length-width ratio is obtained according to the length-width ratio of screen, and driving screen is shown
White image；
First zoning unit obtains partition information, and the white image for showing screen according to the partition information is divided into M*N points
Area；
Characteristic coefficient table generation unit successively obtains the brightness value L p of each subregion actual displayedm*n, and base is referred to according to described
Quasi- brightness value L prefSuccessively calculate the characteristic coefficient T of each subregionm*n, generate the characteristic coefficient table, the Tm*n=Lpm*n/
Lpref。
9. the adjustment device of image display brightness according to claim 8, which is characterized in that the pixel intensity compensates mould
Block includes:
Second zoning unit obtains partition information, the original gradation figure is divided into M*N subregion according to the partition information；
Pixel intensity compensating unit successively obtains the brightness Bp of each pixel in each subregion, and from the characteristic coefficient table
Obtain characteristic coefficient Tm*n, utilize formula Bp/Tm*nSuccessively the brightness of each pixel in each subregion is compensated；
Compensating for gray-scale figure output unit, after detecting that compensation is completed in the brightness of each pixel in M*N subregion, output compensation
Grayscale image.
10. the adjustment device of image display brightness according to claim 8, which is characterized in that the mixed image signal
Synthesis module includes:
Third zoning unit obtains partition information, the compensating for gray-scale figure is divided into M*N subregion according to the partition information；
Prime area grayscale image forms unit, successively calculates the zone luminance value of each subregion, forms prime area grayscale image；
Area grayscale figure sets diminution ratio, the prime area grayscale image is contracted in the diminution ratio at unit
Area grayscale figure is obtained after putting；
The colour picture signal is carried out layering with area grayscale figure and is superimposed by mixed image signal synthesis unit, forms mixing
Picture signal.
11. a kind of television set, which is characterized in that the television set shows bright including such as described in any item images of claim 6-10
The adjustment device of degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710006111.7A CN106531125B (en) | 2017-01-04 | 2017-01-04 | Method of adjustment, device and the television set of image display brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710006111.7A CN106531125B (en) | 2017-01-04 | 2017-01-04 | Method of adjustment, device and the television set of image display brightness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106531125A CN106531125A (en) | 2017-03-22 |
| CN106531125B true CN106531125B (en) | 2019-02-01 |
Family
ID=58336783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710006111.7A Active CN106531125B (en) | 2017-01-04 | 2017-01-04 | Method of adjustment, device and the television set of image display brightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106531125B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600722A (en) * | 2018-06-21 | 2018-09-28 | 深圳市嘉利达专显科技有限公司 | A kind of gamut correction apparatus and method for color management display |
| CN108877678A (en) * | 2018-09-10 | 2018-11-23 | 深圳创维－Rgb电子有限公司 | Image display method, device, display equipment and medium based on pixel compensation |
| CN109615592B (en) * | 2018-11-28 | 2023-01-24 | 成都市鹰诺实业有限公司 | Method for realizing image area compensation through gray curve |
| CN111696475B (en) * | 2019-03-15 | 2021-11-16 | 西安诺瓦星云科技股份有限公司 | Display control method, device and system, storage medium and display control card |
| CN111679804B (en) * | 2020-06-02 | 2023-05-02 | 深圳创维－Rgb电子有限公司 | OLED display compensation method, system, display device and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003195839A (en) * | 2001-10-31 | 2003-07-09 | Samsung Electronics Co Ltd | Method for improving gradation of image, and image display apparatus for performing the method |
| CN1997165A (en) * | 2005-12-31 | 2007-07-11 | 财团法人工业技术研究院 | Method and device for digital image adaptative color adjustment of display |
| CN101035300A (en) * | 2007-04-10 | 2007-09-12 | 北京中星微电子有限公司 | Image enhancing method and device |
| WO2012155525A1 (en) * | 2011-05-13 | 2012-11-22 | 中兴通讯股份有限公司 | Method, device and apparatus for processing video images |
| CN102855842A (en) * | 2012-09-04 | 2013-01-02 | 京东方科技集团股份有限公司 | Method and device for displaying and controlling images |
| CN103236040A (en) * | 2013-04-19 | 2013-08-07 | 华为技术有限公司 | Color enhancement method and color enhancement device |
| CN103986922A (en) * | 2013-02-07 | 2014-08-13 | 聚晶半导体股份有限公司 | Image processing method |
| CN104811587A (en) * | 2015-04-21 | 2015-07-29 | 深圳市载德光电技术开发有限公司 | Image brightness chrominance adjustment method, device and system |
-
2017
- 2017-01-04 CN CN201710006111.7A patent/CN106531125B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003195839A (en) * | 2001-10-31 | 2003-07-09 | Samsung Electronics Co Ltd | Method for improving gradation of image, and image display apparatus for performing the method |
| CN1997165A (en) * | 2005-12-31 | 2007-07-11 | 财团法人工业技术研究院 | Method and device for digital image adaptative color adjustment of display |
| CN101035300A (en) * | 2007-04-10 | 2007-09-12 | 北京中星微电子有限公司 | Image enhancing method and device |
| WO2012155525A1 (en) * | 2011-05-13 | 2012-11-22 | 中兴通讯股份有限公司 | Method, device and apparatus for processing video images |
| CN102855842A (en) * | 2012-09-04 | 2013-01-02 | 京东方科技集团股份有限公司 | Method and device for displaying and controlling images |
| CN103986922A (en) * | 2013-02-07 | 2014-08-13 | 聚晶半导体股份有限公司 | Image processing method |
| CN103236040A (en) * | 2013-04-19 | 2013-08-07 | 华为技术有限公司 | Color enhancement method and color enhancement device |
| CN104811587A (en) * | 2015-04-21 | 2015-07-29 | 深圳市载德光电技术开发有限公司 | Image brightness chrominance adjustment method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106531125A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106531125B (en) | Method of adjustment, device and the television set of image display brightness | |
| US9601062B2 (en) | Backlight dimming method and liquid crystal display using the same | |
| US7932883B2 (en) | Sub-pixel mapping | |
| JP5436647B2 (en) | Display device and control method | |
| US9595229B2 (en) | Local dimming method and liquid crystal display | |
| TWI487382B (en) | Image enhancement method and image enhancement apparatus utilizing the same | |
| WO2018121586A1 (en) | Liquid crystal display device and drive method therefor | |
| US20110317074A1 (en) | Display device and contrast enhancement method thereof | |
| CN1222159C (en) | Method for improving image gradation and image display device applying such method | |
| US8400385B2 (en) | Method for enhancing an image displayed on an LCD device | |
| CN108922481B (en) | Demura implementation method based on side viewing angle of liquid crystal display television | |
| US9286823B2 (en) | Method and apparatus for reducing power consumption in electronic equipment using self-emitting type display | |
| CN107818766A (en) | For driving the integrated circuit and its method of display panel | |
| CN101123059A (en) | Image display device and image display method supporting power control of multicolor light source | |
| US8581925B2 (en) | Method of correcting data and liquid crystal display using the same | |
| CN104332143B (en) | Display device and color conversion method thereof | |
| CN108898987B (en) | Gray scale conversion method, gray scale conversion device and display device | |
| Huang et al. | Image quality evaluation for OLED-based smart-phone displays at various lighting conditions | |
| CN107680541A (en) | A kind of method and device for reducing liquid crystal display power consumption | |
| CN103177702A (en) | Display with grayscale expansion function and method thereof | |
| US20080068395A1 (en) | Display device | |
| Korhonen et al. | Modeling LCD displays with local backlight dimming for image quality assessment | |
| JP2009104132A (en) | Driving method of liquid crystal display, and the liquid crystal display | |
| Liu | Revolution of the TFT LCD technology | |
| WO2019239914A1 (en) | Control device, display device, and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |