CN108600722A - A kind of gamut correction apparatus and method for color management display - Google Patents
A kind of gamut correction apparatus and method for color management display Download PDFInfo
- Publication number
- CN108600722A CN108600722A CN201810643125.4A CN201810643125A CN108600722A CN 108600722 A CN108600722 A CN 108600722A CN 201810643125 A CN201810643125 A CN 201810643125A CN 108600722 A CN108600722 A CN 108600722A
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- module
- signal
- input terminal
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- color gamut
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/643—Hue control means, e.g. flesh tone control
-
- 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
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/117—Filters, e.g. for pre-processing or post-processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
Abstract
The present invention provides a kind of gamut correction devices for color management display, including signal input module, signal decoder module, color gamut conversion module, erasable memory, drive display module and display screen, the output end of the signal input module is connect with the input terminal of the signal decoder module, the output end of the signal decoder module is connect with the input terminal of the color gamut conversion module, the output end of the color gamut conversion module input terminal with the erasable memory respectively, the input terminal connection of the driving display module, the output end of the erasable memory is connect with the input terminal of the driving display module.The beneficial effects of the invention are as follows：By color gamut conversion module, erasable memory, driving display module be integrated into one piece, drive show while, gamut correction can be carried out, it is no longer necessary to external extras, implement it is more convenient, it is at low cost at efficiency is higher.
Description
Technical field
The present invention relates to display more particularly to a kind of gamut correction apparatus and method for color management display.
Background technology
Realize that color management is all to increase color correction module by outside to realize color management at present, cost is higher,
Also, efficiency is low, it has not been convenient to.
Invention content
In order to solve the problems in the prior art, the present invention provides a kind of gamut corrections for color management display
Apparatus and method.
The present invention provides a kind of gamut correction devices for color management display, including signal input module, letter
Number decoder module, color gamut conversion module, erasable memory, driving display module and display screen, the signal input module
Output end is connect with the input terminal of the signal decoder module, the output end of the signal decoder module and the color gamut conversion mould
The input terminal of block connects, the output end of the color gamut conversion module respectively with the input terminal of the erasable memory, the drive
The input terminal connection of dynamic display module, the output end of the erasable memory and the input terminal of the driving display module connect
It connects, the output end of the driving display module is connect with the input terminal of the display screen, and the signal input module believes video
It number is input to the signal decoder module, the signal decoder module carries out signal decoding, video signal decoding is believed at difference
Number and export to the color gamut conversion module, differential signal is decoded into luminance signal to the color gamut conversion module and coloration is believed
Number, and color gamut conversion is carried out to carrier chrominance signal, the carrier chrominance signal after color gamut conversion is synthesized into differential signal with luminance signal, by color
The transformed differential signal in domain is exported to driving display module, by the colour gamut curve of generation when carrying out color gamut conversion to carrier chrominance signal
It is stored in erasable memory with gamma curve, the differential signal after color gamut conversion is converted into driving by the driving display module
Dynamic signal is simultaneously exported to display screen, is carried out driving and is shown.
As a further improvement on the present invention, the color gamut conversion module includes chroma luminance decoder module, color gamut conversion
Device, chroma luminance integrate module, and the input terminal of the chroma luminance decoder module and the output end of the signal decoder module connect
It connects, the output end of the chroma luminance decoder module is connect with the input terminal of the gamut converter, the gamut converter
The input terminal that output end integrates module with the input terminal of the erasable memory, chroma luminance respectively is connect, and the coloration is bright
The output end that degree integrates module is connect with the input terminal of the driving display module.
As a further improvement on the present invention, the signal decoder module includes filter circuit, amplifying circuit, decoding circuit
And conversion circuit, the input terminal of the filter circuit are connect with the output end of the signal input module, the filter circuit
Output end is connect with the input terminal of the amplifying circuit, and the output end of the amplifying circuit and the input terminal of the decoding circuit connect
Connect, the output end of the decoding circuit is connect with the input terminal of the conversion circuit, the output end of the conversion circuit with it is described
The input terminal of color gamut conversion module connects.
As a further improvement on the present invention, the gamut correction device further includes button, the button respectively with it is described
Color gamut conversion module, driving display module connection.
As a further improvement on the present invention, the signal input module includes that DVI signal input modules and DP signals are defeated
Enter module.
The present invention also provides a kind of gamut correction methods for color management display, include the following steps：
S1, vision signal is input to by signal decoder module by signal input module；
S2, video signal decoding at differential signal and is exported to color gamut conversion module by signal decoder module；
S3, differential signal is decoded by luminance signal and carrier chrominance signal by color gamut conversion module, and color is carried out to carrier chrominance signal
Domain is converted, and the carrier chrominance signal after color gamut conversion is synthesized the transformed differential signal of colour gamut with luminance signal, after color gamut conversion
Differential signal export to driving display module, generated colour gamut curve and gamma when color gamut conversion will be carried out to carrier chrominance signal
Curve is stored in erasable memory；
S4, the differential signal after color gamut conversion is converted by drive signal by driving display module and is exported to display screen, into
Row driving display.
The beneficial effects of the invention are as follows：Through the above scheme, color gamut conversion module, erasable memory, driving are shown
Module collection while driving display, can carry out gamut correction, it is no longer necessary to which external extras are realized at one piece
It is next more convenient, it is at low cost at efficiency is higher.
Description of the drawings
Fig. 1 is a kind of schematic diagram of gamut correction device for color management display of the invention.
Fig. 2 is a kind of signal of the color gamut conversion module of gamut correction device for color management display of the invention
Figure.
Fig. 3 is a kind of signal of the signal decoder module of gamut correction device for color management display of the invention
Figure.
Specific implementation mode
The invention will be further described for explanation and specific implementation mode below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of gamut correction device for color management display, including signal input module
1, signal decoder module 2, color gamut conversion module 3, erasable memory 6, driving display module 4 and display screen 5, the signal are defeated
The output end for entering module 1 is connect with the input terminal of the signal decoder module 2, the output end of the signal decoder module 2 and institute
State the input terminal connection of color gamut conversion module 3, the output end of the color gamut conversion module 3 respectively with the erasable memory 6
Input terminal, the driving display module 4 input terminal connection, the output end of the erasable memory 6 and the driving are aobvious
Show that the input terminal connection of module 4, the output end of the driving display module 4 are connect with the input terminal of the display screen 5, the letter
Vision signal is input to the signal decoder module 2 by number input module 1, and the signal decoder module 2 carries out signal decoding, will
Video signal decoding is at differential signal and exports to the color gamut conversion module 3, and the color gamut conversion module 3 is by differential signal solution
Code at luminance signal and carrier chrominance signal, and to carrier chrominance signal carry out color gamut conversion, by after color gamut conversion carrier chrominance signal and brightness
Signal synthesizes differential signal, and the differential signal after color gamut conversion is exported to driving display module 4, will carry out color to carrier chrominance signal
The colour gamut curve that generates and gamma curve are stored in erasable memory 6 when domain is converted, and the driving display module 4 is by colour gamut
Transformed differential signal is converted into drive signal and exports to display screen 5, carries out driving and shows.
As shown in Figure 1 to Figure 3, the color gamut conversion module 3 include chroma luminance decoder module 31, gamut converter 32,
Chroma luminance integrates module 33, the output end of the input terminal of the chroma luminance decoder module 31 and the signal decoder module 2
Connection, the output end of the chroma luminance decoder module 31 are connect with the input terminal of the gamut converter 32, and the colour gamut turns
The input terminal that the output end of parallel operation 32 integrates module 33 with the input terminal of the erasable memory 6, chroma luminance respectively is connect,
The output end that the chroma luminance integrates module 33 is connect with the input terminal of the driving display module 4.
As shown in Figure 1 to Figure 3, the signal decoder module 2 includes filter circuit 21, amplifying circuit 22, decoding circuit 23
With conversion circuit 24, the input terminal of the filter circuit 21 is connect with the output end of the signal input module 1, the filtered electrical
The output end on road 21 is connect with the input terminal of the amplifying circuit 22, the output end of the amplifying circuit 22 and the decoding circuit
23 input terminal connection, the output end of the decoding circuit 23 are connect with the input terminal of the conversion circuit 24, the conversion electricity
The output end on road 23 is connect with the input terminal of the color gamut conversion module 3.
As shown in Figure 1 to Figure 3, the gamut correction device further includes button 7, and the button 7 turns with the colour gamut respectively
Change the mold block 3, driving display module 4 connects, adjusting of the button 7 for various colour gamut curves.
As shown in Figure 1 to Figure 3, the display screen 5 is the liquid crystal display of wide colour gamut.
As shown in Figure 1 to Figure 3, the signal input module 1 includes DVI（DVI full name are Digital Visual
Interface is analog and digital signal）Signal input module and DP（DP full name DisplayPort, a kind of high-definition digital are aobvious
Show signal）Signal input module inputs DVI signals or DP signals respectively.
As shown in Figure 1 to Figure 3, a kind of gamut correction method for color management display, includes the following steps：
S1, vision signal is input to by signal decoder module by signal input module 1；
S2, video signal decoding at differential signal and is exported to color gamut conversion module by signal decoder module 2；
S3, differential signal is decoded by luminance signal and carrier chrominance signal by color gamut conversion module 3, and color is carried out to carrier chrominance signal
Domain is converted, and the carrier chrominance signal after color gamut conversion is synthesized the transformed differential signal of colour gamut with luminance signal, after color gamut conversion
Differential signal export to driving display module 4, generated colour gamut curve and gal when color gamut conversion will be carried out to carrier chrominance signal
Horse curve is stored in erasable memory 6；
S4, the differential signal after color gamut conversion is converted by drive signal by driving display module 4 and is exported to display screen 5,
Driving is carried out to show.
A kind of gamut correction apparatus and method for color management display provided by the invention, by color gamut conversion mould
Block, erasable memory, driving display module are integrated into one piece, while driving display, can carry out gamut correction, no longer
Need external extras, implement it is more convenient, it is at low cost at efficiency is higher.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (6)
1. a kind of gamut correction device for color management display, it is characterised in that：Including signal input module, signal solution
Code module, color gamut conversion module, erasable memory, driving display module and display screen, the output of the signal input module
End is connect with the input terminal of the signal decoder module, the output end of the signal decoder module and the color gamut conversion module
Input terminal connects, and the output end of the color gamut conversion module is aobvious with the input terminal of the erasable memory, the driving respectively
Show that the input terminal connection of module, the output end of the erasable memory are connect with the input terminal of the driving display module, institute
The output end for stating driving display module is connect with the input terminal of the display screen, and the signal input module inputs vision signal
To the signal decoder module, the signal decoder module carries out signal decoding, by video signal decoding at differential signal and defeated
Go out to the color gamut conversion module, differential signal is decoded into luminance signal and carrier chrominance signal by the color gamut conversion module, and right
Carrier chrominance signal carries out color gamut conversion, the carrier chrominance signal after color gamut conversion is synthesized differential signal with luminance signal, by color gamut conversion
Differential signal afterwards is exported to driving display module, by the colour gamut curve of generation and gamma when carrying out color gamut conversion to carrier chrominance signal
Curve is stored in erasable memory, and the differential signal after color gamut conversion is converted into drive signal by the driving display module
And export to display screen, it carries out driving and shows.
2. the gamut correction device according to claim 1 for color management display, it is characterised in that：The colour gamut
Conversion module includes chroma luminance decoder module, gamut converter, chroma luminance integration module, the chroma luminance decoder module
Input terminal connect with the output end of the signal decoder module, the output end of the chroma luminance decoder module and the colour gamut
The input terminal of converter connects, the output end of the gamut converter respectively with the input terminal of the erasable memory, coloration
The input terminal connection of module is integrated in brightness, and the chroma luminance integrates the input of the output end and the driving display module of module
End connection.
3. the gamut correction device according to claim 1 for color management display, it is characterised in that：The signal
Decoder module includes filter circuit, amplifying circuit, decoding circuit and conversion circuit, the input terminal of the filter circuit and the letter
The output end connection of number input module, the output end of the filter circuit is connect with the input terminal of the amplifying circuit, described to put
The output end of big circuit is connect with the input terminal of the decoding circuit, the output end of the decoding circuit and the conversion circuit
Input terminal connects, and the output end of the conversion circuit is connect with the input terminal of the color gamut conversion module.
4. the gamut correction device according to claim 1 for color management display, it is characterised in that：The colour gamut
Means for correcting further includes button, and the button is connect with the color gamut conversion module, driving display module respectively.
5. the gamut correction device according to claim 1 for color management display, it is characterised in that：The signal
Input module includes DVI signal input modules and DP signal input modules.
6. a kind of gamut correction method for color management display, which is characterized in that include the following steps：
S1, vision signal is input to by signal decoder module by signal input module；
S2, video signal decoding at differential signal and is exported to color gamut conversion module by signal decoder module；
S3, differential signal is decoded by luminance signal and carrier chrominance signal by color gamut conversion module, and color is carried out to carrier chrominance signal
Domain is converted, and the carrier chrominance signal after color gamut conversion is synthesized the transformed differential signal of colour gamut with luminance signal, after color gamut conversion
Differential signal export to driving display module, generated colour gamut curve and gamma when color gamut conversion will be carried out to carrier chrominance signal
Curve is stored in erasable memory；
S4, the differential signal after color gamut conversion is converted by drive signal by driving display module and is exported to display screen, into
Row driving display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643125.4A CN108600722A (en) | 2018-06-21 | 2018-06-21 | A kind of gamut correction apparatus and method for color management display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643125.4A CN108600722A (en) | 2018-06-21 | 2018-06-21 | A kind of gamut correction apparatus and method for color management display |
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| CN108600722A true CN108600722A (en) | 2018-09-28 |
Family
ID=63628472
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|---|---|---|---|
| CN201810643125.4A Pending CN108600722A (en) | 2018-06-21 | 2018-06-21 | A kind of gamut correction apparatus and method for color management display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767198A (en) * | 2019-09-29 | 2020-02-07 | 深圳吉迪思电子科技有限公司 | Color gamut correction method and system and display driving integrated circuit |
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