CN109872687A - Gamma correction method, gamma correction mould group, display panel and display device - Google Patents
Gamma correction method, gamma correction mould group, display panel and display device Download PDFInfo
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Abstract
The present invention provides a kind of gamma correction method, gamma correction mould group, display panel and display device.The gamma correction method includes: to establish gamma correction data library, presets n predetermined display mode；M detection grayscale is chosen from M predetermined grayscale, is detected under n predetermined display mode respectively, after treating correction display mould group and carrying out gamma correction, real data voltage corresponding with detection grayscale；Determine target sample data cell；Correction display mould group, which is treated, according to the sample data voltage in target sample data cell carries out gamma correction；N and M is the integer greater than 1；N and m is positive integer, and m is less than M.Gamma correction speed can be improved in the present invention, realizes the raising of production efficiency, and gamma correction effect is good to sacrifice image quality simultaneously.
Description
Technical field
The present invention relates to gamma correction technical field more particularly to a kind of gamma correction method, gamma correction mould group, displays
Panel and display device.
Background technique
In the prior art, the method for reducing Gamma tuning (gamma correction) time, there are mainly two types of:
(1) efficiency of gamma correcting equipment is promoted, is mainly exactly the upgrading optimization of equipment underlying algorithm, makes it in gamma school
Target value can be quickly found during just.
(2) (the RGB register value namely gal stored in the RGB register of the RGB register value under every kind of display pattern
Digital data voltage after horse correction) it is about the same big, or there are certain mathematical relationships；For example, in gamma correction knot
In fruit, the RBG register value of the RGB register value and the first normal displaying mode that are highlighted under mode is basic almost big,
The gamma correction that a kind of display pattern can be thus reduced by duplication RGB register value, when can thus save adjusting
Between.
Both the above method can save the gamma correction time, but the first gamma correction method is more relative complex,
It needs to optimize program in the algorithm of bottom, so that the gamma correction time cannot be saved.Second method is using aobvious
Show the rule of product own characteristic to realize the reduction of gamma correction time, but due to showing product itself, it is various
Although the RGB register value of display pattern is very close, be not it is just the same, will lead to the display mould of not gamma correction in this way
Gamma correction effect under formula can be poor, is to sacrifice image quality as cost in a second approach.
It is good that the prior art cannot provide a kind of gamma correction effect, while can be reduced the gamma correction time again and not sacrificing picture
The gamma correction method of matter.
Summary of the invention
The main purpose of the present invention is to provide a kind of gamma correction method, gamma correction mould group, display panel and displays
Device, asking for gamma correction effect cannot be guaranteed while saving the gamma correction time by solving existing gamma correction method
Topic.
In order to achieve the above object, the present invention provides a kind of gamma correction methods, comprising:
Gamma correction data library is established, n predetermined display mode is preset；The gamma correction data library includes N number of
Sample data unit；The one sample data unit corresponds to a sample display module；The sample data unit includes n number
According to subelement；A data sub-element in the sample data unit corresponds to a predetermined display mode；Data
It is stored in unit under the corresponding predetermined display mode, after carrying out gamma correction to the sample display module, with M
The corresponding sample data voltage of a predetermined grayscale；
M detection grayscale is chosen from the M predetermined grayscale, is detected under the n predetermined display modes respectively,
After treating correction display mould group progress gamma correction, real data voltage corresponding with the detection grayscale；
Will under the n predetermined display mode real data voltage corresponding with the detection grayscale and at least one
What is stored in data sub-element corresponding with the predetermined display mode in the sample data unit is corresponding with the detection grayscale
Sample data voltage be compared, using it is determining with the immediate sample data unit of the real data voltage as target
Sample data unit；
Gamma is carried out to the display module to be corrected according to the sample data voltage in the target sample data cell
Correction；
N and M is the integer greater than 1, and n and m are positive integer, and m is less than M.
When implementation, the sample display module and the display module to be corrected made under identical technological parameter and
At.
When implementation, N is more than or equal to 2000 and is less than or equal to 5000, m and is more than or equal to 2 and is less than or equal to 5.
When implementation, the predetermined display mode includes at least one preferential display pattern and at least one secondary display mould
Formula；
It is described will under the n predetermined display mode real data voltage corresponding with the detection grayscale, and at least
Stored in data sub-element corresponding with the predetermined display mode in one sample data unit with the detection grayscale
Corresponding sample data voltage is compared, and is with the immediate sample data unit of the real data voltage with determination
Target sample data cell step includes:
First compare the corresponding real data voltage of detection grayscale and at least one institute under the preferential display pattern
State stored in the corresponding data sub-element of in the sample data unit and preferential display pattern it is corresponding with the detection grayscale
Sample data voltage is compared, and the determining and immediate A sample data unit of the real data voltage is as sample to be selected
Data cell；A is the integer greater than 1；
Will under the secondary display pattern real data voltage corresponding with the detection grayscale and at least one described in
In sample data unit to be selected with stored in the corresponding data sub-element of secondary display pattern it is corresponding with the detection grayscale
Sample data voltage be compared, using it is determining with immediate one sample data unit to be selected of the real data voltage as mesh
Standard specimen notebook data unit.
When implementation, the secondary display pattern includes power saving display pattern, is highlighted mode, the first normal displaying mode
With the second normal displaying mode；The preferential display pattern includes third normal displaying mode and the 4th normal displaying mode.
The present invention also provides a kind of gamma correction mould groups, comprising:
Module is established in gamma correction data library, for establishing gamma correction data library, and presets n predetermined display moulds
Formula；The gamma correction data library includes N number of sample data unit；The one sample data unit corresponds to a sample and shows mould
Group；The sample data unit includes n data sub-element；A data sub-element in the sample data unit corresponds to one
The predetermined display mode；It is stored in the data sub-element under the corresponding predetermined display mode, to the sample
After this display module carries out gamma correction, sample data voltage corresponding with the predetermined grayscale of M；
Real data voltage detection module for choosing m detection grayscale from the M predetermined grayscale, and is examined respectively
It surveys under the n predetermined display modes, display module to be corrected is corresponding with the detection grayscale after carrying out gamma correction
Real data voltage；
Target sample data cell determining module, for will under the n predetermined display mode with the detection grayscale
Data corresponding with predetermined display mode in corresponding real data voltage and at least one described sample data unit
The sample data voltage corresponding with the detection grayscale stored in unit is compared, most with the determining and real data voltage
A close sample data unit is target sample data cell；And
Gamma correction module, for according to the sample data voltage in the target sample data cell to described to be corrected
Display module carries out gamma correction；
N and M is the integer greater than 1；N and m is positive integer, and m is less than M.
When implementation, the sample display module and the display module to be corrected made under identical technological parameter and
At.
When implementation, N is more than or equal to 2000 and is less than or equal to 5000, m and is more than or equal to 2 and is less than or equal to 5.
When implementation, the predetermined display mode includes at least one preferential display pattern and at least one secondary display mould
Formula；
The target sample data cell determining module includes:
Sample data unit to be selected determines submodule, for first comparing the detection grayscale under the preferential display pattern
Data corresponding with the preferential display pattern in corresponding real data voltage and at least one described sample data unit
The sample data voltage corresponding with the detection grayscale stored in unit is compared, and determination is closest with the real data voltage
A sample data unit as sample data unit to be selected；A is the integer greater than 1；And
Target sample data cell determines submodule, for will under the secondary display pattern with the detection grayscale pair
Data corresponding with the secondary display pattern in the real data voltage answered and at least one described sample data unit to be selected
The sample data voltage corresponding with the detection grayscale stored in subelement is compared, most with the determining and real data voltage
The sample data unit to be selected of close one is target sample data cell.
When implementation, the secondary display pattern includes power saving display pattern, is highlighted mode, the first normal displaying mode
With the second normal displaying mode；The preferential display pattern includes third normal displaying mode and the 4th normal displaying mode.
The present invention also provides a kind of display panels, including above-mentioned gamma correction mould group.
The present invention also provides a kind of display devices, including above-mentioned display panel.
Compared with prior art, gamma correction method of the present invention, gamma correction mould group, display panel and display dress
It sets after establishing gamma correction data library, it is only necessary to the reality after detecting small numbers of gamma correction corresponding with detection grayscale
Gamma correction (Gamma tuning) can be completed in data voltage, and gamma correction speed can be improved, realize mentioning for production efficiency
Height, and gamma correction effect is good to sacrifice image quality simultaneously.
Detailed description of the invention
Fig. 1 is the flow chart of gamma correction method described in the embodiment of the present invention；
Fig. 2 is the flow chart of the step S13 of gamma correction method described in the embodiment of the present invention；
Fig. 3 A is the relationship signal of the digital data voltage and grayscale under the power saving display pattern, after gamma correction
Figure；
Fig. 3 B be it is described be highlighted mode under, the relationship of digital data voltage and grayscale after gamma correction is illustrated
Figure；
Fig. 3 C is that the relationship of the digital data voltage and grayscale under first normal displaying mode, after gamma correction is shown
It is intended to；
Fig. 3 D is that the relationship of the digital data voltage and grayscale under second normal displaying mode, after gamma correction is shown
It is intended to；
Fig. 3 E is that the relationship of the digital data voltage and grayscale under the third normal displaying mode, after gamma correction is shown
It is intended to；
Fig. 3 F is that the relationship of the digital data voltage and grayscale under the 4th normal displaying mode, after gamma correction is shown
It is intended to.
Fig. 4 is the structural block diagram of gamma correction mould group described in the embodiment of the present invention；
Fig. 5 is the structural block diagram of gamma correction mould group described in another embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, gamma correction method described in the embodiment of the present invention includes:
S11: establishing gamma correction data library, presets n predetermined display mode；The gamma correction data library includes
N number of sample data unit；The one sample data unit corresponds to a sample display module；The sample data unit includes n
A data sub-element；A data sub-element in the sample data unit corresponds to a predetermined display mode；The number
According to being stored under the corresponding predetermined display mode in subelement, gamma correction is being carried out to the sample display module
Afterwards, sample data voltage corresponding with the predetermined grayscale of M；
S12: choosing m detection grayscale from the M predetermined grayscale, is detected respectively in the n predetermined display modes
Under, after treating correction display mould group and carrying out gamma correction, real data voltage corresponding with the detection grayscale；
S13: will under the n predetermined display mode real data voltage corresponding with the detection grayscale, and at least
Stored in data sub-element corresponding with the predetermined display mode in one sample data unit with the detection grayscale
Corresponding sample data voltage is compared, and is with the immediate sample data unit of the real data voltage with determination
Target sample data cell；
S14: the display module to be corrected is carried out according to the sample data voltage in the target sample data cell
Gamma correction；
N and M is the integer greater than 1；N and m is positive integer, and m is less than M.
Gamma correction method described in the embodiment of the present invention first establishes gamma correction data library, first shows mould to multiple samples
Group carry out gamma correction, determine under multiple predetermined display modes, at least one sample display module it is (described pre- with predetermined grayscale
Determining grayscale can be to tie up a grayscale) data voltage after corresponding gamma correction；
After establishing gamma correction data library, when needing to carry out gamma correction to a display module to be corrected, it is only necessary to select
Fixed small numbers of detection grayscale, is detected under corresponding predetermined display mode, carries out gamma school treating correction display mould group
After just, real data voltage corresponding with the detection grayscale；
The real data voltage is compared with the sample data voltage in gamma correction data library later, is chosen most
A close sample data unit to carry out the display module to be corrected gamma correction (namely according to target sample data
Sample data voltage in unit carries out gamma correction to the display module to be corrected)；
Using gamma correction method described in the embodiment of the present invention, after establishing gamma correction data library, it is only necessary to detect
Gamma correction (Gamma can be completed in real data voltage after small numbers of gamma correction corresponding with detection grayscale
Tuning), gamma correction speed can be improved, realize the raising of production efficiency, and gamma correction effect is good thus will not simultaneously
Sacrifice image quality.
In the specific implementation, the sample data voltage and the real data voltage can be digital data voltage, but
It is not limited with this.
In practical operation, RGB is provided in the driving IC (Integrated Circuit, integrated circuit) of display device
Register, the digital data voltage after the RGB register value namely gamma correction that store in the RGB register.
In the specific implementation, the sample display module and the display module to be corrected are made under identical technological parameter
It forms.
When carrying out gamma correction matching, sample display module and display module to be corrected are needed in identical working condition
Under be made, to guarantee gamma correction precision.
The embodiment of the present invention provides a kind of method that dynamic gamma correction database applies to gamma correction, and so-called dynamic refers to
Be according to plant produced information (process flow, raw material information etc.), in different time sections to the gamma school of sample display module
Data voltage after just is grabbed, and gamma correction data library is then established, which meets normal distribution, it
If all information afterwards in certain time production information are constant, factory can be using the gamma correction number grabbed before
Correction display mould group is treated according to the empirical value in library and carries out gamma correction, to realize the raising of production efficiency.
It can be as follows that the detailed process of gamma correction is carried out to display module: set predetermined grayscale (the predetermined grayscale
Namely tie up a grayscale, the number of the predetermined grayscale can be multiple), and set object brightness corresponding with the predetermined grayscale and
Target colorimetric；Display is sent by lighting machine by the initial numberical data voltage in the RGB register of the corresponding predetermined grayscale
The driving IC of mould group, driving IC exports corresponding analog data voltage, and is acted in display module, can generate corresponding
Intrinsic brilliance and practical coloration, by intrinsic brilliance compared with object brightness, and then practical coloration are adjusted compared with target colorimetric
Digital data voltage in whole RGB register, until intrinsic brilliance and practical coloration that display module is shown reach target value, this
When RGB register in digital data voltage be digital data voltage after gamma correction.
In practical operation, the digital data voltage in the RGB register of the corresponding predetermined grayscale may include red number
Digital data voltage, green digital data voltage and blue digital data voltage, when carrying out gamma correction, need adjust obtain with
Digital data voltage after the gamma correction of upper three kinds of colors.
In the specific implementation, N be more than or equal to 2000 and be less than or equal to 5000, m be more than or equal to 2 and be less than or equal to 5, but not with
This is limited.
2000, m is equal to N below and is equal to 2 illustrations.
The embodiment of the present invention is by collecting sample display module when carrying out gamma correction, under each predetermined display mode,
Sample digital data voltage corresponding with each predetermined grayscale in the RGB register of every piece of sample display module, to establish gamma
Correction database, the gamma correction data library may include after the gamma correction of 2000 sample display modules with each predetermined ash
The corresponding sample digital data voltage of rank；
When establishing gamma correction data library,
N predetermined display mode is first preset, the predetermined display mode may include power saving display pattern, highlight aobvious
Show mode, the first normal displaying mode and the second normal displaying mode, third normal displaying mode and the 4th normal displaying mode,
But not limited to this；
M predetermined grayscale are preset, the predetermined grayscale includes: 255 grayscale, 3 grayscale, 207 grayscale, 155 grayscale, 91
Grayscale, 55 grayscale, 47 grayscale, 36 grayscale, 13 grayscale, 7 grayscale, but not limited to this；In the case where computing capability allows, M
Value can be larger, to promote gamma correction accuracy；
The N number of sample display module being made under same technological parameter is chosen, under each predetermined display mode, to every
The one sample display module carries out gamma correction, to obtain the sample after gamma correction corresponding with each predetermined grayscale
Digital data voltage, to establish gamma correction data library；The gamma correction data library includes N number of sample data unit；One institute
Sample data unit is stated corresponding to a sample display module；The sample data unit includes six data sub-elements；It should
A data sub-element in sample database corresponds to a predetermined display mode；At least one described data sub-element
In be stored under the corresponding preassigned pattern, after carrying out gamma correction to the sample display module, and described at least one
The corresponding sample data voltage of predetermined grayscale；The sample data voltage is digital data voltage, and but not limited to this；
The purpose for establishing the gamma correction data library is just intended to make data therein more than enough, can show comprising various samples
The data of mould group, the sample display module good from quality arrive inferior sample display module；
New gamma tuning (gamma correction) algorithm is designed later, using the rule of display module product, from distribution
The quality of the quality of the display module to be corrected of angle subsequent production and sample display module before is consistent (described
Sample display module and the display module to be corrected are made under identical technological parameter), it is subsequent to be corrected in this way
Display module can not have to select under every kind of predetermined display mode several representative a grayscale progress gamma correction is all tied up
Corresponding real figure data after tying up a grayscale (what is selected ties up a grayscale namely the detection grayscale) detection gamma correction
Voltage can save the gamma correction time；
For example, driving IC can choose 255 grayscale and 3 grayscale as detection grayscale, treats correction display mould group and carry out gal
Horse correction, obtains under each predetermined display mode, corresponding to the actual number number of words after the gamma correction of 255 grayscale and 3 grayscale
According to voltage, namely obtain 12 real figure data voltages；
Will be as above under predetermined display mode, real figure data voltage corresponding with detection grayscale is in gamma correction data
Library is matched, corresponding with each predetermined grayscale in that most matched sample data unit in 2000 sample data units
Sample digital data voltage, so that it may direct as the value in the RGB register after the gamma correction of the display module to be corrected
It is written in the driving IC of the display module to be corrected；
In the specific implementation, will be as above under predetermined display mode, real figure data voltage corresponding with detection grayscale
It is matched in gamma correction data library, to obtain most matched sample data unit, detailed process is as follows:
Assuming that real figure data voltage corresponding with 255 grayscale is D11, corresponding with 3 grayscale under power saving display pattern
Real figure data voltage be D12；Under the mode that is highlighted, real figure data voltage corresponding with 255 grayscale is
D21, real figure data voltage corresponding with 3 grayscale are D22；Under the first normal displaying mode, reality corresponding with 255 grayscale
Border digital data voltage is D31, and real figure data voltage corresponding with 3 grayscale is D32；In the second normal display display pattern
Under, real figure data voltage corresponding with 255 grayscale is D41, and real figure data voltage corresponding with 3 grayscale is D42；?
Under third normal displaying mode, real figure data voltage corresponding with 255 grayscale is D51, real figure corresponding with 3 grayscale
Data voltage is D52；Under the 4th normal displaying mode, real figure data voltage corresponding with 255 grayscale is the ash of D61 and 3
The corresponding real figure data voltage of rank is D62；
Then by sample numerical data corresponding with 255 grayscale under the power saving display pattern in D11 and each sample data unit
Voltage compares, by sample digital data voltage corresponding with 3 grayscale under the power saving display pattern in D12 and each sample data unit
Compare, sample digital data voltage ratio corresponding with 255 grayscale will be highlighted under mode in D21 and each sample data unit
Compared with, by D22 in each sample data unit be highlighted under mode sample digital data voltage corresponding with 3 grayscale compared with；
By sample digital data voltage ratio corresponding with 255 grayscale under the first normal displaying mode in D31 and each sample data unit
Compared with by sample digital data voltage ratio corresponding with 3 grayscale under the first normal displaying mode in D32 and each sample data unit
Compared with by sample digital data voltage corresponding with 255 grayscale under the second normal displaying mode in D41 and each sample data unit
Compare, by sample digital data voltage corresponding with 3 grayscale under the second normal displaying mode in D42 and each sample data unit
Compare；By sample numerical data electricity corresponding with 255 grayscale under the third normal displaying mode in D51 and each sample data unit
Pressure ratio is compared with by sample numerical data electricity corresponding with 3 grayscale under the third normal displaying mode in D52 and each sample data unit
Pressure ratio is compared with by sample numerical data corresponding with 255 grayscale under the 4th normal displaying mode in D61 and each sample data unit
Voltage compares, by sample numerical data corresponding with 3 grayscale under the 4th normal displaying mode in D62 and each sample data unit
Voltage compares；Select the sample data unit for most matching (namely gap is minimum) with above each real figure data voltage as mesh
Standard specimen notebook data unit；
The display module to be corrected is carried out according to the sample digital data voltage in the target sample data cell
Gamma correction, that is, the actual number number of words by the display module to be corrected under predetermined display mode, corresponding to predetermined grayscale
According to voltage, it is set to the sample number number of words for corresponding to the predetermined display mode and the predetermined grayscale in the target sample data cell
According to voltage；
The gamma correction time can be greatlyd save by carrying out gamma correction using gamma correction algorithms program as above；
The data volume in gamma correction data library obtained due to use method as above is sufficiently large, and can according to need,
The regular importing gamma correction data library of the data in display module will be produced, so that its characteristic is stronger, inclusive
It is stronger, the comprehensive of sample can be increased in this way, so that matched effect is more preferable.Using matching process as above, display to be corrected
The RGB register value of mould group generally differs smaller with sample, and such image quality is substantially consistent with sample, since sample display module is
It is normally carried out gamma correction, image quality is qualified, then carrying out the image quality of the display module of gamma correction by matching
It is qualified, therefore image quality is not damaged, while the buying of gamma correction optical device can be reduced, saves cost.
In addition it in matcher execution, can be sought in gamma correction data library in conjunction with particle swarm algorithm, faster procedure
The speed of optimal objective is looked for, the time of such matching algorithm can be much less, and improve production efficiency.
The embodiment of the present invention needs the (institute in the case where guaranteeing that working condition is constant when establishing gamma correction data library
Stating formation condition for example may include device parameter and production technology etc.), gamma is carried out to a certain number of sample display modules
Correction, and the value of RGB register is obtained, carry out the foundation in gamma correction data library；
Need to guarantee the constant reason of working condition are as follows: the batch of display module can occur because of the variation of technological parameter
The variation of display module quality, so the value that the variation of front process parameter will lead to the RGB register of display module becomes
Change, so in production, the foundation in gamma correction data library will guarantee that working condition is constant, sample matches just meeting subsequent in this way
More quickly；Also, gamma correction data library establish should the sample display module as much as possible comprising various qualities, this
Sample just can guarantee that the display module of subsequent production can find immediate sample therewith in gamma correction data library.
In the specific implementation, the mode that is highlighted, the first normal displaying mode, the second normal displaying mode, third just
In normal display pattern, the 4th normal displaying mode and power saving display pattern, it is highlighted what the corresponding display module of mode was shown
First brightness highest, the second brightness that the corresponding display module of power saving display pattern is shown is minimum, and four as above normal displays
The brightness that the corresponding display module of mode is shown is between first brightness and second brightness, and the first normal display mould
The brightness that the corresponding display module of formula is shown is greater than the brightness that the corresponding display module of the second normal displaying mode is shown, second just
The brightness that the normal corresponding display module of display pattern is shown shows bright greater than the corresponding display module of third normal displaying mode
Degree, the brightness that the corresponding display module of third normal displaying mode is shown are greater than the corresponding display module of the 4th normal displaying mode
The brightness of display.
In the preferred case, the predetermined display mode includes that at least one preferential display pattern and at least one secondary are aobvious
Show mode；
As shown in Fig. 2, it is described will under the n predetermined display mode corresponding with detection grayscale real data electricity
Pressure and at least one described sample data unit in data sub-element corresponding with the predetermined display mode in store with this
The corresponding sample data voltage of detection grayscale is compared, with the determining and immediate sample number of the real data voltage
It is that target sample data cell step S13 may include: according to unit
S131: first compare the corresponding real data voltage of the detection grayscale under the preferential display pattern, and at least
Stored in data sub-element corresponding with the preferential display pattern in one sample data unit with the detection grayscale
Corresponding sample data voltage is compared, it is determining with the immediate A sample data unit of the real data voltage as to
Sampling notebook data unit；A is the integer greater than 1；
S132: will under the secondary display pattern real data voltage corresponding with the detection grayscale, and at least one
What is stored in data sub-element corresponding with the secondary display pattern in a sample data unit to be selected is grey with the detection
The corresponding sample data voltage of rank is compared, with determining and immediate one sample data list to be selected of the real data voltage
Member is target sample data cell.
In the specific implementation, real data voltage and sample data voltage that can first under more preferential display pattern, with
A sample data units to be selected, then real data voltage and sample data voltage under more secondary display pattern are obtained, with true
The sample data that sets the goal unit.
Specifically, the secondary display pattern may include power saving display pattern, it is highlighted mode, the first normal display
Mode and the second normal displaying mode；The preferential display pattern may include third normal displaying mode and the 4th normal display
Mode.
Gamma correction method described in the embodiment of the present invention is to be based on things itself using big data and statistical theory
Rule carry out gamma correction method optimization, it is subsequent to be added thereto intelligent algorithm, with the progress of production, gal
Horse correction database can become larger, and gamma correction matching system itself forms the ability of self-teaching, make its searching of optimal matching
More quick and precisely；And in matching algorithm, since during actual production display module, discovery is normally shown in third
Show under mode and the 4th normal displaying mode under the digital data voltage fluctuation that stores in RGB register it is maximum, and remaining four
The digital data voltage fluctuation stored in RGB register under kind display pattern is smaller, normally shows it is therefore proposed that first carrying out third
Mode and the value of the RGB register under the 4th normal displaying mode are (in the value of the RGB register namely the RGB register
The digital data voltage of storage) matching, then carry out the matching of the value of RGB register under remaining four kinds of display pattern；Using such as
Upper matching algorithm can accelerate matching speed.
The mnemonic learning function of increasing matching algorithm in gamma correcting equipment, allows to the matched experience before
To carry out subsequent match, the speed of quickening matching optimizing.
In Fig. 3 A, Fig. 3 B, Fig. 3 C, Fig. 3 D, Fig. 3 E and Fig. 3 F, the longitudinal axis is the digital data voltage after gamma correction, horizontal
Axis is grayscale.
Fig. 3 A is the relationship signal of the digital data voltage and grayscale under the power saving display pattern, after gamma correction
Figure；
Fig. 3 B be it is described be highlighted mode under, the relationship of digital data voltage and grayscale after gamma correction is illustrated
Figure；
Fig. 3 C is that the relationship of the digital data voltage and grayscale under first normal displaying mode, after gamma correction is shown
It is intended to；
Fig. 3 D is that the relationship of the digital data voltage and grayscale under second normal displaying mode, after gamma correction is shown
It is intended to；
Fig. 3 E is that the relationship of the digital data voltage and grayscale under the third normal displaying mode, after gamma correction is shown
It is intended to；
Fig. 3 F is that the relationship of the digital data voltage and grayscale under the 4th normal displaying mode, after gamma correction is shown
It is intended to.
Gal by comparing it is found that under the mode that is highlighted and under the first normal displaying mode, corresponding to the grayscale
Digital data voltage after horse correction is basic almost big.
As shown in figure 4, gamma correction mould group described in the embodiment of the present invention includes:
Module 41 is established in gamma correction data library, for establishing gamma correction data library, and presets n predetermined displays
Mode；The gamma correction data library includes N number of sample data unit；The one sample data unit corresponds to a sample and shows
Mould group；The sample data unit includes n data sub-element；A data sub-element in the sample data unit corresponds to
One predetermined display mode；It is stored in the data sub-element under the corresponding predetermined display mode, to described
After sample display module carries out gamma correction, sample data voltage corresponding with the predetermined grayscale of M；
Real data voltage detection module 42, for choosing m detection grayscale from the M predetermined grayscale, and respectively
Under the n predetermined display modes, display module to be corrected is corresponding with the detection grayscale after carrying out gamma correction for detection
Real data voltage；
Target sample data cell determining module 43, being used for will be grey with the detection under the n predetermined display mode
Data corresponding with the predetermined display mode in the corresponding real data voltage of rank and at least one described sample data unit
The sample data voltage corresponding with the detection grayscale stored in subelement is compared, with the determining and real data voltage
An immediate sample data unit is target sample data cell；And
Gamma correction module 44, for according to the sample data voltage in the target sample data cell to described to school
Positive display module carries out gamma correction；
N and M is the integer greater than 1；N and m is positive integer, and m is less than M.
Gamma correction mould group described in the embodiment of the present invention, which first passes through gamma correction data library, to be established module 41 and establishes gamma
Correction database first carries out gamma correction to multiple sample display modules, determines under multiple predetermined display modes, at least one sample
Data voltage after the gamma correction corresponding with predetermined grayscale (the predetermined grayscale can be to tie up a grayscale) of this display module；
After establishing gamma correction data library, when needing to carry out gamma correction to a display module to be corrected, it is only necessary to selected number compared with
Few detection grayscale detects under corresponding predetermined display mode, after treating correction display mould group and carrying out gamma correction, with institute
State the corresponding real data voltage of detection grayscale；Later by the sample number in the real data voltage and gamma correction data library
It is compared according to voltage, an immediate sample data unit is chosen to carry out gamma correction to the display module to be corrected
(namely gamma correction is carried out to the display module to be corrected according to the sample data voltage in target sample data cell).It adopts
The gamma correction mould group described in the embodiment of the present invention, after establishing gamma correction data library, it is only necessary to detect small numbers of
Gamma correction (Gamma tuning), Ke Yiti can be completed in real data voltage after gamma correction corresponding with detection grayscale
High gamma correction speed, realizes the raising of production efficiency.
In the specific implementation, the sample data voltage and the real data voltage can be digital data voltage, but
It is not limited with this.
In the specific implementation, the sample display module and the display module to be corrected are made under identical technological parameter
It forms.
Specifically, N be more than or equal to 2000 and be less than or equal to 5000, m be more than or equal to 2 and be less than or equal to 5, but not as
Limit.
In the preferred case, the predetermined display mode includes that at least one preferential display pattern and at least one secondary are aobvious
Show mode；
As shown in figure 5, the target sample data cell determining module may include:
Sample data unit to be selected determines submodule 431, for first comparing the detection under the preferential display pattern
Number corresponding with the preferential display pattern in the corresponding real data voltage of grayscale and at least one described sample data unit
It is compared according to the sample data voltage corresponding with the detection grayscale stored in subelement, the determining and real data voltage is most
A close sample data unit is as sample data unit to be selected；A is the integer greater than 1；And
Target sample data cell determines submodule 432, and being used for will be grey with the detection under the secondary display pattern
It is corresponding with the secondary display pattern in the corresponding real data voltage of rank and at least one described sample data unit to be selected
The sample data voltage corresponding with the detection grayscale stored in data sub-element is compared, with determining electric with the real data
Pressing immediate one sample data unit to be selected is target sample data cell.
Specifically, the secondary display pattern may include power saving display pattern, it is highlighted mode, the first normal display
Mode and the second normal displaying mode；The preferential display pattern may include third normal displaying mode and the 4th normal display
Mode.
Display panel described in the embodiment of the present invention includes above-mentioned gamma correction mould group.
Display device described in the embodiment of the present invention includes above-mentioned display panel.
The display device for example can be with are as follows: Electronic Paper, OLED (Organic Light-Emitting Diode, it is organic
Light emitting diode) it is display device, mobile phone, tablet computer, television set, display, laptop, digital to frame, navigator etc.
Any products or components having a display function.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (12)
1. a kind of gamma correction method characterized by comprising
Gamma correction data library is established, n predetermined display mode is preset；The gamma correction data library includes N number of sample
Data cell；The one sample data unit corresponds to a sample display module；The sample data unit includes n data
Unit；A data sub-element in the sample data unit corresponds to a predetermined display mode；The data sub-element
In be stored under the corresponding predetermined display mode, it is pre- with M after carrying out gamma correction to the sample display module
Determine the corresponding sample data voltage of grayscale；
M detection grayscale is chosen from the M predetermined grayscale, detects under the n predetermined display modes, is treating respectively
After correction display mould group carries out gamma correction, real data voltage corresponding with the detection grayscale；
Will under the n predetermined display mode real data voltage corresponding with the detection grayscale and at least one described in
The sample corresponding with the detection grayscale stored in the corresponding data sub-element of in the sample data unit and predetermined display mode
Notebook data voltage is compared, using the determining and immediate sample data unit of the real data voltage as target sample
Data cell；
Gamma correction is carried out to the display module to be corrected according to the sample data voltage in the target sample data cell；
N and M is the integer greater than 1, and n and m are positive integer, and m is less than M.
2. gamma correction method as described in claim 1, which is characterized in that the sample display module and described to be corrected aobvious
Show that mould group is made under identical technological parameter.
3. gamma correction method as claimed in claim 1 or 2, which is characterized in that N is more than or equal to 2000 and is less than or equal to
5000, m are more than or equal to 2 and are less than or equal to 5.
4. gamma correction method as claimed in claim 1 or 2, which is characterized in that the predetermined display mode includes at least one
A preferential display pattern and at least one secondary display pattern；
It is described will under the n predetermined display mode real data voltage corresponding with the detection grayscale and at least one
What is stored in data sub-element corresponding with the predetermined display mode in the sample data unit is corresponding with the detection grayscale
Sample data voltage be compared, using it is determining with the immediate sample data unit of the real data voltage as target
Sample data unit step includes:
First compare the corresponding real data voltage of detection grayscale and at least one described sample under the preferential display pattern
The sample corresponding with the detection grayscale stored in the corresponding data sub-element of in the notebook data unit and preferential display pattern
Data voltage is compared, and the determining and immediate A sample data unit of the real data voltage is as sample data to be selected
Unit；A is the integer greater than 1；
Will under the secondary display pattern real data voltage corresponding with the detection grayscale and at least one is described to be selected
The sample corresponding with the detection grayscale stored in the corresponding data sub-element of in the sample data unit and secondary display pattern
Notebook data voltage is compared, using determining and immediate one sample data unit to be selected of the real data voltage as target sample
Notebook data unit.
5. gamma correction method as claimed in claim 4, which is characterized in that the secondary display pattern includes that power saving shows mould
Formula is highlighted mode, the first normal displaying mode and the second normal displaying mode；The preferential display pattern include third just
Normal display pattern and the 4th normal displaying mode.
6. a kind of gamma correction mould group characterized by comprising
Module is established in gamma correction data library, for establishing gamma correction data library, and presets n predetermined display mode；
The gamma correction data library includes N number of sample data unit；The one sample data unit corresponds to a sample display module；
The sample data unit includes n data sub-element；A data sub-element in the sample data unit corresponds to an institute
State predetermined display mode；It is stored in the data sub-element under the corresponding predetermined display mode, to the sample
After display module carries out gamma correction, sample data voltage corresponding with the predetermined grayscale of M；
Real data voltage detection module for choosing m detection grayscale from the M predetermined grayscale, and is detected respectively in n
Under a predetermined display mode, display module to be corrected is after carrying out gamma correction, reality corresponding with the detection grayscale
Data voltage；
Target sample data cell determining module, being used for will be corresponding with the detection grayscale under the n predetermined display mode
Real data voltage and at least one described sample data unit in data sub-element corresponding with the predetermined display mode
The sample data voltage corresponding with the detection grayscale of middle storage is compared, closest with the real data voltage with determination
A sample data unit be target sample data cell；And
Gamma correction module, for according to the sample data voltage in the target sample data cell to the display to be corrected
Mould group carries out gamma correction；
N and M is the integer greater than 1；N and m is positive integer, and m is less than M.
7. gamma correction mould group as claimed in claim 6, which is characterized in that the sample display module and described to be corrected aobvious
Show that mould group is made under identical technological parameter.
8. gamma correction mould group as claimed in claims 6 or 7, which is characterized in that N is more than or equal to 2000 and is less than or equal to
5000, m are more than or equal to 2 and are less than or equal to 5.
9. gamma correction mould group as claimed in claims 6 or 7, which is characterized in that the predetermined display mode includes at least one
A preferential display pattern and at least one secondary display pattern；
The target sample data cell determining module includes:
Sample data unit to be selected determines submodule, corresponding for first comparing the detection grayscale under the preferential display pattern
Real data voltage and at least one described sample data unit in data sub-element corresponding with the preferential display pattern
The sample data voltage corresponding with the detection grayscale of middle storage is compared, the determining and immediate A of the real data voltage
A sample data unit is as sample data unit to be selected；A is the integer greater than 1；And
Target sample data cell determines submodule, and being used for will be corresponding with the detection grayscale under the secondary display pattern
Data corresponding with secondary display pattern in real data voltage and at least one described sample data unit to be selected is single
The sample data voltage corresponding with the detection grayscale stored in member is compared, closest with the real data voltage with determination
A sample data unit to be selected be target sample data cell.
10. gamma correction mould group as claimed in claim 9, which is characterized in that the secondary display pattern includes that power saving is shown
Mode is highlighted mode, the first normal displaying mode and the second normal displaying mode；The preferential display pattern includes third
Normal displaying mode and the 4th normal displaying mode.
11. a kind of display panel, which is characterized in that including the gamma school as described in any claim in claim 6 to 10
Holotype group.
12. a kind of display device, which is characterized in that including display panel as claimed in claim 11.
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