CN106205545B - Over-drive value table optimized treatment method and liquid crystal display - Google Patents
Over-drive value table optimized treatment method and liquid crystal display Download PDFInfo
- Publication number
- CN106205545B CN106205545B CN201610852032.3A CN201610852032A CN106205545B CN 106205545 B CN106205545 B CN 106205545B CN 201610852032 A CN201610852032 A CN 201610852032A CN 106205545 B CN106205545 B CN 106205545B
- Authority
- CN
- China
- Prior art keywords
- over
- drive value
- coefficient
- area
- drive
- 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
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The invention discloses a kind of over-drive value table optimized treatment methods, comprising: over-drive value table progress subregion is obtained at least one first area, wherein include N number of over-drive value in each first area；Linear fit is carried out in each first area, obtains the corresponding fitting coefficient in each first area；A compressible drive value table is generated according to the starting point over-drive value, terminal over-drive value and the fitting coefficient of each first area, and stores the compressible drive value table.The present invention also provides a kind of liquid crystal displays.Over-drive value table is compressed, memory space is saved, reduces cost；The over-drive value being contracted by passes through starting point over-drive value, terminal over-drive value and the fitting coefficient reduction of the first area of storage when in use, over-drive value and true over-drive value error after reduction is smaller, it avoids generating image border pseudomorphism, the phenomenon that accelerating liquid crystal reaction speed, preventing motion image blurring generation.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of over-drive value table optimized treatment method and liquid crystal display
Equipment.
Background technique
Liquid crystal display has irreplaceable status in modem display devices, it is widely used in Portable movable
The display equipment of electronic product, such as mobile phone, digital camera, palm PC, GPRS, TV product.Maintenance type shows and responds
Speed is the reason of liquid crystal display generates correction of motion artefacts slowly, and (Over Driving, OD) technology solution of overdriving generally can be used
The certainly slow-footed problem of liquid crystal response.From previous grayscale (Pre Gray) to target gray scale (Target Gray), using overdriving
In the case where, the liquid crystal response time is shorter, and grayscale of overdriving (OD Gray) therein, which is exactly that we are usually said, to be overdrived
Value.Overdrive technique is to accelerate liquid crystal response speed, improves the important technology and other several related skills of image streaking problem
The basis of art.Numerous concerns have been obtained in overdrive technique in recent years, and are widely applied in field of liquid crystal display.It crosses
Driving value is stored in time sequence driving circuit storage unit in the form of over-drive value table, when the size of over-drive value table determines
The size of sequence circuit memory cell capacity also influences the cost of time sequence driving circuit, how to compress the size of over-drive value table
And reducing error is still a larger technical problem.
In the prior art, over-drive value table is reduced to 17*17 by 33*33 by most time sequence driving circuit, these
The over-drive value being contracted by can be restored by way of data linear interpolation when in use, but the over-drive value that restores and true
Over-drive value error it is larger, be unable to reach estimated effect of overdriving, over-drive value, which crosses senior general, generates moving image edge
It is bright, dark bilateral, that is, generate edge artifacts；Over-drive value is too small, keeps the response time of liquid crystal not short enough, causes moving image mould
Paste.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of over-drive value table compression and storage method and liquid crystal display,
The over-drive value and true over-drive value restored by way of data linear interpolation when solving to use in the prior art
The larger problem of error.
In order to solve the above technical problems, on the one hand, the present invention provides a kind of over-drive value table optimized treatment method, comprising:
Over-drive value table progress subregion is obtained at least one first area, wherein include N number of mistake in each first area
Driving value；
Linear fit is carried out in each first area, obtains the corresponding fitting coefficient in each first area；
A pressure is generated according to the starting point over-drive value, terminal over-drive value and the fitting coefficient of each first area
Contracting driving value table, and store the compressible drive value table；
It is using the starting point over-drive value, the terminal over-drive value and the fitting of each first area
Number decompresses the over-drive value table and obtains N number of over-drive value of each first area, so that crossing after being decompressed is driven
Dynamic value table.
Further, described to carry out linear fit in each first area, it is corresponding quasi- to obtain each first area
Collaboration number, comprising:
Obtain the N number of over-drive value for including in each first area；
N number of over-drive value is normalized, N number of normalization over-drive value is obtained；
Obtain P experimental fit coefficient；
By experimental fit coefficient each in the P experimental fit coefficient correspond to N number of normalization over-drive value into
Row normalization extension, respectively obtains the normalizing coefficient that one group of number is N corresponding to each experimental fit coefficient；
Calculate separately the corresponding one group of normalizing coefficient of each experimental fit coefficient N number of normalizing corresponding with the first area
Change one-to-one N number of difference of over-drive value, and calculates square of N number of difference；
Calculate N number of difference square sum；
Choose N number of difference square and fitting system that the smallest experimental fit coefficient is as corresponding first area
Number.
Further, described that N number of over-drive value is normalized, obtaining N number of normalization over-drive value includes:
Set the normalization over-drive value G of first area starting point1It is 0, the normalization over-drive value G of first area terminalNFor
1, according to formula a=1/ (QN-Q1) increment value a is calculated, and according to formula Zn=(Qn-Q1) returning for nth point is calculated in * a
One changes driving value Gn, wherein QNFor terminal over-drive value, QnFor the over-drive value of nth point, Q11st point of over-drive value, and 0 < n
<N。
Further, described that experimental fit coefficient each in the P experimental fit coefficient is corresponded into N number of normalization
Extension is normalized in over-drive value, respectively obtains the normalizing coefficient that one group of number is N corresponding to each experimental fit coefficient
Include:
For any experimental fit coefficient S, the normalizing coefficient X of the 1st point of setting1It is 0, the normalizing coefficient X of N pointNIt is 1, with
And according to formula Xn=S* (Xn+x-Xn-x) calculate the normalizing coefficient X of nth pointn, wherein Xn+xFor the normalizing coefficient of the n-th+x point,
Xn-xFor the normalizing coefficient of the n-th-x point, n < n+x < N, 0 < n-x < n.
Further, the starting point over-drive value, terminal over-drive value and the fitting according to each first area
Coefficient generates a compressible drive value table, and stores the compressible drive value table, comprising:
By the fitting coefficient multiplied by 255 and round obtain the fitting coefficient after a conversion；And
According to the fitting coefficient after the starting point over-drive value, terminal over-drive value and the conversion of each first area
The compressible drive value table is generated, and stores the compressible drive value table.
Further, the starting point over-drive value, the terminal over-drive value and institute of each first area are utilized
It states fitting coefficient and decompresses the over-drive value table and obtain N number of over-drive value of each first area, to be decompressed
After over-drive value table afterwards, the method also includes:
Previous grayscale value over-drive value corresponding with target gray scale value is inquired according to the over-drive value table after the decompression.
On the other hand, the present invention also provides a kind of liquid crystal display, including processor and memory, the processor packets
It includes:
Zoning unit, for over-drive value table progress subregion to be obtained at least one first area, wherein each firstth area
It include N number of over-drive value in domain；
Computing unit obtains each first area pair for carrying out linear fit in each first area
The fitting coefficient answered；
Storage control unit, for the starting point over-drive value, terminal over-drive value and institute according to each first area
It states fitting coefficient and generates a compressible drive value table, and store the compressible drive value table.
Query unit, for the starting point over-drive value, the terminal over-drive value using each first area
And the fitting coefficient decompresses the over-drive value table and obtains N number of over-drive value of each first area, to obtain
Over-drive value table after decompression.
Further, the computing unit includes:
Over-drive value obtains subelement, for obtaining the N number of over-drive value for including in each first area；
It normalizes computation subunit and obtains N number of normalized for N number of over-drive value to be normalized
Driving value；
Fitting coefficient obtains subelement, for obtaining P experimental fit coefficient；
Computation subunit is extended, for experimental fit coefficient each in the P experimental fit coefficient to be corresponded to the N
Extension is normalized in a normalization over-drive value, and respectively obtaining one group of number corresponding to each experimental fit coefficient is N's
Normalizing coefficient；And
Fitting coefficient computation subunit, for calculating separately the corresponding one group of normalizing coefficient of each experimental fit coefficient and institute
One-to-one N number of difference of the corresponding N number of normalization over-drive value in first area is stated, and calculates square of N number of difference,
And calculate N number of difference square sum, then, selection N number of difference square and the smallest experimental fit system
Fitting coefficient of the number as the corresponding first area.
Further, the fitting coefficient computation subunit is also used to:
By the fitting coefficient multiplied by 255 and round obtain the fitting coefficient after a conversion.
Further, the query unit is also used to:
Previous grayscale value over-drive value corresponding with target gray scale value is inquired according to the over-drive value table after the decompression.
Beneficial effects of the present invention are as follows: the over-drive value gauge pressure of 33*33 or 65*65 is shortened into the over-drive value of 17*17
It is stored after table, saves memory space, reduce cost；The over-drive value being contracted by passes through the first area of storage when in use
Starting point over-drive value, terminal over-drive value and fitting coefficient reduction, over-drive value and true over-drive value after reduction are missed
Difference is smaller, avoids the phenomenon that generating image border pseudomorphism, accelerating liquid crystal reaction speed, prevent motion image blurring generation.
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
Other obvious modes of texturing are obtained according to these attached drawings.
Fig. 1 is the flow diagram for the over-drive value table compression and storage method that the embodiment of the present invention one provides.
Fig. 2 is that unpressed over-drive value indicates to be intended to.
Fig. 3 is normalization over-drive value schematic diagram.
Fig. 4 is normalizing coefficient schematic diagram.
Fig. 5 is square schematic diagram of difference.
Fig. 6 is each experimental fit coefficients comparison schematic diagram.
Fig. 7 is the contrast schematic diagram of the over-drive value and true over-drive value after decompression.
Fig. 8 is the flow diagram for the over-drive value table compression and storage method that the embodiment of the present invention two provides.
Fig. 9 is the schematic device for the liquid crystal display that the embodiment of the present invention provides.
Figure 10 is the computing unit schematic diagram for the liquid crystal display that the embodiment of the present invention provides.
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.
The embodiment of the present invention provides a kind of over-drive value table compression and storage method and liquid crystal display, and it is empty can to save storage
Between.In the specific implementation, liquid crystal display described in the embodiment of the present invention may include but be not limited to: mobile phone, tablet computer, pen
Remember the liquid crystal displays such as this computer, TV.
It is the process signal for the over-drive value table compression and storage method that the embodiment of the present invention one provides referring to Fig. 1, Fig. 1
Figure.The over-drive value table compression and storage method can control the hardware of liquid crystal display by floppy disk system to execute.Such as Fig. 1 institute
Show, the method may include following steps:
Over-drive value table subregion is obtained several first areas by S101, and each first area includes N number of over-drive value.
Preferably, first area is to include in the N number of over-drive value adjacent with a line in driving value table, further,
First area includes positioned at 5 continuous over-drive values with a line.
S102 carries out linear fit in each first area, obtains the fitting coefficient of each first area.
Step S102 includes: in the present embodiment
Obtain the N number of over-drive value for including in each first area.
N number of over-drive value is normalized, N number of normalization over-drive value is obtained；Specifically, setting first
The normalization over-drive value G1 of region starting point (the 1st point) is 0, and the normalization over-drive value GN of first area terminal (N point) is
1, increment value a is calculated according to formula a=1/ (QN-Q1), and nth point is calculated according to formula Zn=(Qn-Q1) * a
Normalize driving value Gn, wherein QN be terminal over-drive value, Qn be nth point over-drive value, the over-drive value that the 1st point of Q1, and
0<n<N。。
Obtain P experimental fit coefficient.
By experimental fit coefficient each in the P experimental fit coefficient correspond to N number of normalization over-drive value into
Row normalization extension, respectively obtains the normalizing coefficient that one group of number is N corresponding to each experimental fit coefficient；Specifically, right
In any experimental fit coefficient, set the 1st point of normalizing coefficient as 0, the normalizing coefficient of N point is 1, and according to formula according to
The normalizing coefficient of nth point is equal to the difference of the normalizing coefficient of the n-th+x point and the normalizing coefficient of the n-th-x point and current experiment fitting is
Several products calculates the normalizing coefficient that corresponding experimental fit data correspond to each over-drive value, wherein Xn+xFor the n-th+x
The normalizing coefficient of point, Xn-xFor the normalizing coefficient of the n-th-x point, n < n+x < N, 0 < n-x < n.
Calculate separately the corresponding one group of normalizing coefficient of each experimental fit coefficient N number of normalizing corresponding with the first area
Change one-to-one N number of difference of over-drive value, and calculates square of N number of difference.
Calculate N number of difference square sum.
Choose N number of difference square and fitting system that the smallest experimental fit coefficient is as corresponding first area
Number.
Specifically, by taking the over-drive value gauge pressure of 33*33 is reduced to the method for over-drive value table of 17*17 as an example, with previous ash
Rank value is 144, and 5 over-drive values that target gray scale value is 40 to 72 are compressed as first area, and digital simulation coefficient,
The specific method is as follows:
1, in conjunction with Fig. 2,5 over-drive values are obtained, be 11, and be 14, and be 19, and be the 28, the 5th at the 1st point at the 2nd point at the 3rd point at the 4th point
Point is 41.
2, in conjunction with Fig. 3, each over-drive value is normalized respectively, as previously described, comprising: rise setting first area
The normalization over-drive value G1 of point is 0, and the normalization over-drive value GN of first area terminal is 1, according to formula a=1/ (QN-
Q1 increment value a) is calculated, and the normalization driving value Gn of nth point is calculated according to formula Zn=(Qn-Q1) * a, wherein
QN is terminal over-drive value, and Qn is the over-drive value of nth point, the over-drive value that the 1st point of Q1, and 0 < n < N.To in this implementation
In example, the normalization over-drive value for set at the 1st point is 0, and the 5th point of normalization over-drive value is 1, increment value a for 41-11
Number, i.e. a=1/30=0.033333；2nd point of normalization over-drive value is (14-11) * a=0.1, the 3rd point of normalization
Driving value is (19-11) * a=0.266667, and the 4th point of normalization over-drive value is (28-11) * a=0.566667.
3, it is single order with 0.01 between 0~1, obtains 100 experimental fit coefficients.
4, in conjunction with Fig. 4, each experimental fit coefficient in 100 experimental fit coefficients is corresponded into 5 normalizings
Change over-drive value and extension is normalized, respectively obtains the normalizing coefficient that one group of number is 5, be with experimental fit coefficient 0.33
Example:
1st normalizing coefficient is 0, and the 5th normalizing coefficient is 1, and the 3rd normalizing coefficient=1*0.33=0.33, the 2nd point is returned
One coefficient=(0.33-0) * 0.33=0.1089, the 4th normalizing coefficient=(1-0.33) * 0.33+0.33=0.5511.
Other each experimental fit coefficients correspond to the method phase that extension is normalized in described 5 normalization over-drive values
Together.That is, for any experimental fit coefficient, for any experimental fit coefficient S, the normalizing coefficient X of the 1st point of setting1It is 0, N
The normalizing coefficient X of pointNIt is 1, and according to formula Xn=S* (Xn+x-Xn-x) calculate the normalizing coefficient X of nth pointn, wherein n < n+
X < N, 0 < n-x < n.Specifically, x is transformable value, such as from 1 incremental value, it is as long as meeting with the normalizing coefficient of nth point
Centrosymmetric two o'clock, i.e. the normalizing coefficient of the n-th+x point and the n-th-x point are it is known that can then calculate the normalizing coefficient of nth point.
As before, having set the 1st normalizing coefficient is 0, the 5th normalizing coefficient is 1, it is clear that work as x=2, when n=3, and the 1st point
Normalizing coefficient and the 5th normalizing coefficient are with the two o'clock of the 3rd point of normalizing coefficient symmetry, and the 1st normalizing coefficient and the 5th
Point normalizing coefficient is that therefore, can find out the 3rd point of normalizing coefficient according to formula above it is known that respectively 0 and 1.Equally,
After the 3rd point of normalizing coefficient finds out and, the 2nd point of normalizing coefficient will there are two symmetrical and known normalizing coefficients, i.e.,
It 1st point and the 3rd point, then can be according to formula Xn=S* (Xn+x-Xn-x) equally find out the 2nd point of normalizing coefficient.
5, calculate separately the corresponding one group of normalizing coefficient of each experimental fit coefficient in 100 experimental fit coefficients with
One-to-one multiple differences of the corresponding 5 normalization over-drive value in the first area and square of the multiple difference.
In conjunction with Fig. 5, by taking experimental fit coefficient 0.33 as an example:
1st point, (0-0) ^2=0
2nd point, (0.1-0.1089) ^2=0.0000792
3rd point, (0.266667-0.33) ^2=0.004011
4th point, (0.566667-0.5511) ^2=0.000242
5th point, (1-1) ^2=0
6, calculate 5 it is described difference square sum.
By taking experimental fit coefficient 0.33 as an example:
0+0.0000792+0.004011+0.000242+0=0.004332642
7, choose described 5 differences square and the smallest experimental fit coefficient as the fitting coefficient.
In conjunction with Fig. 6, calculating ratio it is corresponding to 100 experimental fit coefficients 5 normalization over-drive value difference square
With, realize fitting coefficient 0.32 corresponding 5 it is described difference square and it is minimum, therefore choose 0.32 be used as the fitting coefficient.
S103 generates one according to the starting point over-drive value, terminal over-drive value and the fitting coefficient of each first area
Compressible drive value table, and store the compressible drive value table.
Wherein, the starting point over-drive value, terminal over-drive value of the first area and the fitting coefficient store when
The storage unit of sequence driving circuit.
It in the present embodiment, stores, saves after the over-drive value gauge pressure of 33*33 or 65*65 to be shortened into the over-drive value table of 17*17
About memory space reduces cost.
S104 utilizes the starting point over-drive value of each first area, the terminal over-drive value and described
Fitting coefficient decompresses the over-drive value table and obtains N number of over-drive value of each first area, thus after obtaining decompression
Over-drive value table；And
Previous grayscale value over-drive value corresponding with target gray scale value is inquired according to the over-drive value table after the decompression.
Specifically, the over-drive value of nth point is in decompression procedure according to formula Gn=(Gn+x-Gn-x)*S0+Gn-xIt obtains,
In, S0For fitting coefficient.
It is decompressed for 5 over-drive values with 11,41 and fitting coefficient 0.32 for final preservation data below:
1st point=115, the 5th point=41 be it is known, be not required to decompress；
3rd point=(41-11) * 0.32+11=20.6
2nd point=(20.6-11) * 0.32+11=14.072
4th point=(41-20.6) * 0.32+20.6=27.128
Wherein, the true value of 5 over-drive values is followed successively by 11,14,19,28,41.
In conjunction with Fig. 7, the over-drive value gauge pressure of 33*33 is shortened into the over-drive value table of 17*17, reduces the size of table,
Memory space has been saved, while the value roughly equal with the over-drive value in original table can be obtained by decompression, satisfaction makes
With requiring, roughly the same driving effect is reached.
In the present embodiment, the starting point that the over-drive value being contracted by passes through the first area of storage when in use is overdrived
Value, terminal over-drive value and fitting coefficient reduction, the over-drive value and true over-drive value error after reduction are smaller, avoid
The phenomenon that generating image border pseudomorphism, accelerating liquid crystal reaction speed, prevent motion image blurring generation.
It is the process signal for the over-drive value table compression and storage method that the embodiment of the present invention two provides referring to Fig. 8, Fig. 8
Figure.The over-drive value table compression and storage method can control the hardware of liquid crystal display by floppy disk system to execute.Such as Fig. 8 institute
Show, the method may include following steps:
Over-drive value table subregion is obtained several first areas by S201, and each first area includes N number of over-drive value.
Preferably, first area is to include in the N number of over-drive value adjacent with a line in driving value table, further,
First area selects 5 over-drive values.
S202 carries out linear fit in each first area, obtains the fitting coefficient of each first area.
In the present embodiment, for any one first area, step S102 includes:
Obtain the N number of over-drive value for including in first area.
N number of over-drive value is normalized, N number of normalization over-drive value is obtained；Specifically, described in setting
The normalization over-drive value of first area starting point (the 1st point) is 0, and the normalization of the first area terminal (N point) is overdrived
Value is 1, calculates the inverse of the difference of the over-drive value of N point and the 1st point of over-drive value as increment value a, according to nth point
It normalizes driving value and is equal to the difference of the over-drive value of nth point and the 1st point of over-drive value and the product of increment value a, calculate n-th
The normalization driving value of point.
Obtain P experimental fit coefficient.
By experimental fit coefficient each in the P experimental fit coefficient correspond to N number of normalization over-drive value into
Row normalization extension, respectively obtains the normalizing coefficient that one group of number is N corresponding to each experimental fit coefficient；Specifically, right
In any experimental fit coefficient, the 1st point of normalizing coefficient is set as 0, the normalizing coefficient of N point is 1, and according to nth point
Normalizing coefficient is equal to the difference of normalizing coefficient and multiplying for current experiment fitting coefficient of the normalizing coefficient and the n-th-x point of the n-th+x point
Product calculates the normalizing coefficient that corresponding experimental fit data correspond to each over-drive value.
Calculate separately the corresponding one group of normalizing coefficient of each experimental fit coefficient N number of normalizing corresponding with the first area
Change one-to-one N number of difference of over-drive value, and calculates square of N number of difference.
Calculate N number of difference square sum.
Choose N number of difference square and fitting system that the smallest experimental fit coefficient is as the first area
Number.
S203, by the fitting coefficient multiplied by 255 and round converted after fitting coefficient.
In the present embodiment, the data that time sequence driving circuit can be read require to exist with integer form, therefore need to described
Fitting coefficient is multiplied by 255 and round.
S204 generates one according to the starting point over-drive value, terminal over-drive value and the fitting coefficient of each first area
Compressible drive value table, and store the compressible drive value table.
Wherein, the starting point over-drive value, terminal over-drive value of the first area and the fitting coefficient store when
The storage unit of sequence driving circuit.
In present embodiment, stored after the over-drive value gauge pressure of 33*33 or 65*65 to be shortened into the over-drive value table of 17*17,
Memory space is saved, cost is reduced.
S205 utilizes the starting point over-drive value of each first area, the terminal over-drive value and described
Fitting coefficient decompresses the over-drive value table and obtains N number of over-drive value of each first area, thus after obtaining decompression
Over-drive value table；And
Previous grayscale value over-drive value corresponding with target gray scale value is inquired according to the over-drive value table after the decompression.
Specifically, the over-drive value of nth point is in decompression procedure according to formula Gn=(Gn+x-Gn-x)*S0+Gn-xIt obtains,
In, S0For fitting coefficient.
It is decompressed for 5 over-drive values with 11,41 and fitting coefficient 0.32 for final preservation data below:
1st point=115, the 5th point=41 be it is known, be not required to decompress；
3rd point=(41-11) * 0.32+11=20.6
2nd point=(20.6-11) * 0.32+11=14.072
4th point=(41-20.6) * 0.32+20.6=27.128
Wherein, the true value of 5 over-drive values is followed successively by 11,14,19,28,41.
The over-drive value table that the over-drive value gauge pressure of 33*33 is shortened into 17*17, reduces the size of table, has saved and deposited
Space is stored up, while the value roughly equal with the over-drive value in original table can be obtained by decompression, meets requirement, reaches
Roughly the same driving effect is arrived.
In the present embodiment, the starting point that the over-drive value being contracted by passes through the first area of storage when in use is overdrived
Value, terminal over-drive value and fitting coefficient reduction, the over-drive value and true over-drive value error after reduction are smaller, avoid
The phenomenon that generating image border pseudomorphism, accelerating liquid crystal reaction speed, prevent motion image blurring generation.
It is the structural schematic diagram of liquid crystal display 100 provided in an embodiment of the present invention referring to Fig. 9, Fig. 9.As shown in figure 9,
The liquid crystal display 100 may include processor 1 and memory 2.Wherein, the processor 1 can be central processing unit, micro-control
Device processed, digital signal processor, single-chip microcontroller etc..In the present embodiment, the memory 2 is sequence controller memory (TCON
memory)。
As shown in Figure 10, the processor 1 include: zoning unit 301, computing unit 302, storage control unit 303 and
Query unit 304.
In some embodiments, the zoning unit 301, computing unit 302, storage control unit 303 and query unit
304 program instruction for execution can be called by processor 1.In further embodiments, the zoning unit 301, computing unit
302, storage control unit 303 and query unit 304 are the circuit structure in processor 1.
The zoning unit 301, for over-drive value table progress subregion to be obtained at least one first area, wherein every
It include N number of over-drive value in a first area；
The computing unit 302 obtains described each first for carrying out linear fit in each first area
The corresponding fitting coefficient in region；
Preferably, first area includes in driving value table in the N number of over-drive value adjacent with a line.
The storage control unit 303, for being overdrived according to the starting point over-drive value of each first area, terminal
Value and the fitting coefficient generate a compressible drive value table, and store the compressible drive value table.
The query unit 304, for the starting point over-drive value, the terminal mistake using each first area
Driving value and the fitting coefficient decompress the over-drive value table and obtain N number of over-drive value of each first area, from
And the over-drive value table after being decompressed；And
Previous grayscale value over-drive value corresponding with target gray scale value is inquired according to the over-drive value table after the decompression.
Specifically, over-drive value be in order to accelerate previous grayscale value rise to target gray scale value speed setting driving value,
Previous grayscale value, which directly improves grayscale value as target using over-drive value, can make previous grayscale value reach target gray scale value faster.
In the present embodiment, computing unit 302 further includes that over-drive value obtains subelement 3021, normalization computation subunit
3022, fitting coefficient obtains subelement 3023, extension computation subunit 3024 and fitting coefficient computation subunit 3025, and each son is single
The concrete function of member is as follows:
Over-drive value obtains subelement 3021, for obtaining the N number of over-drive value for including in first area；
It normalizes computation subunit 3022 and obtains N number of normalizing for N number of over-drive value to be normalized
Change over-drive value；
Fitting coefficient obtains subelement 3023, for obtaining P experimental fit coefficient；
Computation subunit 3024 is extended, for corresponding to experimental fit coefficient each in the P experimental fit coefficient
Extension is normalized in N number of normalization over-drive value, respectively obtains one group of number corresponding to each experimental fit coefficient
For the normalizing coefficient of N；And
Fitting coefficient computation subunit 3025, for calculating separately the corresponding one group of normalizing coefficient of each experimental fit coefficient
One-to-one N number of difference of N number of normalization over-drive value corresponding with the first area, and calculate N number of difference
Square, and calculate N number of difference square sum, then, choose N number of difference square and the smallest experiment intend
Fitting coefficient of the collaboration number as the first area.
Specifically, by taking the over-drive value gauge pressure of 33*33 is reduced to the method for over-drive value table of 17*17 as an example, with previous ash
Rank value is 144, and 5 over-drive values that target gray scale value is 40 to 72 are compressed as first area, and digital simulation coefficient,
The specific method is as follows:
Over-drive value obtains subelement 3021 and obtains 5 over-drive values, and the 1st point is 11, and the 2nd point is 14, and the 3rd point is 19,
4th point is 28, and the 5th point is 41.
Normalization computation subunit 3022 is respectively normalized each over-drive value, comprising: setting first area
The normalization over-drive value G1 of starting point is 0, and the normalization over-drive value GN of first area terminal is 1, according to formula a=1/ (QN-
Q1 increment value a) is calculated, and the normalization driving value Gn of nth point is calculated according to formula Zn=(Qn-Q1) * a, wherein
QN is terminal over-drive value, and Qn is the over-drive value of nth point, the over-drive value that the 1st point of Q1, and 0 < n < N.To in this implementation
In example, the normalization over-drive value for set at the 1st point is 0, and the 5th point of normalization over-drive value is 1, increment value a for 41-11
Number, i.e. a=1/30=0.033333；2nd point of normalization over-drive value is (14-11) * a=0.1, the 3rd point of normalization
Driving value is (19-11) * a=0.266667, and the 4th point of normalization over-drive value is (28-11) * a=0.566667.
Fitting coefficient obtains between subelement 3023 from 0~1, is single order with 0.01, obtains 100 experimental fit coefficients.
Computation subunit 3024 is extended by each experimental fit coefficient in 100 experimental fit coefficients corresponding to described
Extension is normalized in 5 normalization over-drive values, the normalizing coefficient that one group of number is 5 is respectively obtained, with experimental fit coefficient
For 0.33:
1st normalizing coefficient is 0, and the 5th normalizing coefficient is 1, and the 3rd normalizing coefficient=1*0.33=0.33, the 2nd point is returned
One coefficient=(0.33-0) * 0.33=0.1089, the 4th normalizing coefficient=(1-0.33) * 0.33+0.33=0.5511.
Other each experimental fit coefficients correspond to the method phase that extension is normalized in described 5 normalization over-drive values
Together.That is, for any experimental fit coefficient, for any experimental fit coefficient S, the normalizing coefficient X of the 1st point of setting1It is 0, N
The normalizing coefficient X of pointNIt is 1, and according to formula Xn=S* (Xn+x-Xn-x) calculate the normalizing coefficient X of nth pointn, wherein n < n+
X < N, 0 < n-x < n.Specifically, x is transformable value, such as from 1 incremental value, it is as long as meeting with the normalizing coefficient of nth point
Centrosymmetric two o'clock, i.e. the normalizing coefficient of the n-th+x point and the n-th-x point are it is known that can then calculate the normalizing coefficient of nth point.
As before, having set the 1st normalizing coefficient is 0, the 5th normalizing coefficient is 1, it is clear that work as x=2, when n=3, and the 1st point
Normalizing coefficient and the 5th normalizing coefficient are with the two o'clock of the 3rd point of normalizing coefficient symmetry, and the 1st normalizing coefficient and the 5th
Point normalizing coefficient is that therefore, can find out the 3rd point of normalizing coefficient according to formula above it is known that respectively 0 and 1.Equally,
After the 3rd point of normalizing coefficient finds out and, the 2nd point of normalizing coefficient will there are two symmetrical and known normalizing coefficients, i.e.,
It 1st point and the 3rd point, then can be according to formula Xn=S* (Xn+x-Xn-x) equally find out the 2nd point of normalizing coefficient.
Fitting coefficient computation subunit 3025 calculates separately each experimental fit coefficient in 100 experimental fit coefficients
One-to-one multiple differences of corresponding one group of normalizing coefficient 5 normalization over-drive value corresponding with the first area,
And square of the multiple difference.
By taking experimental fit coefficient 0.33 as an example:
1st point, (0-0) ^2=0
2nd point, (0.1-0.1089) ^2=0.0000792
3rd point, (0.266667-0.33) ^2=0.004011
4th point, (0.566667-0.5511) ^2=0.000242
5th point, (1-1) ^2=0
Calculate 5 it is described difference square sum.
By taking experimental fit coefficient 0.33 as an example:
0+0.0000792+0.004011+0.000242+0=0.004332642
Choose described 5 differences square and the smallest experimental fit coefficient as the fitting coefficient.
Calculating ratio it is corresponding to 100 experimental fit coefficients 5 normalization over-drive value difference square sum, realize intend
Collaboration number 0.32 corresponding 5 it is described difference square and it is minimum, therefore choose 0.32 be used as the fitting coefficient.
Fitting coefficient computation subunit 3025 is also used to the fitting coefficient multiplied by 255 and round obtains one
Fitting coefficient after conversion.
In the present embodiment, it is finally to save the 5 of data that the function of query unit 304, which is with 11,41 and fitting coefficient 0.32,
A over-drive value is decompressed:
1st point=115, the 5th point=41 be it is known, be not required to decompress；
3rd point=(41-11) * 0.32+11=20.6
2nd point=(20.6-11) * 0.32+11=14.072
4th point=(41-20.6) * 0.32+20.6=27.128
Wherein, the true value of 5 over-drive values is followed successively by 11,14,19,28,41.
It is stored after the over-drive value gauge pressure of 33*33 or 65*65 to be shortened into the over-drive value table of 17*17, saves memory space,
Reduce cost；The over-drive value being contracted by passes through the starting point over-drive value of the first area of storage when in use, terminal crosses drive
Dynamic value and fitting coefficient S0With formula Gn=(Gn+x-Gn-x)*S0+Gn-xIt obtains.Over-drive value and true cross after reduction are driven
Dynamic value error is smaller, avoids the phenomenon that generating image border pseudomorphism, accelerating liquid crystal reaction speed, prevent motion image blurring hair
It is raw.
Above disclosed is only several preferred embodiments of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Claims (10)
1. a kind of over-drive value table optimized treatment method characterized by comprising
Over-drive value table progress subregion is obtained at least one first area, wherein overdrive in each first area comprising N number of
Value, wherein N is the natural number greater than 0；
Linear fit is carried out in each first area, obtains the corresponding fitting coefficient in each first area；
A compression is generated according to the starting point over-drive value, terminal over-drive value and the fitting coefficient of each first area to drive
Dynamic value table, and store the compressible drive value table；
Utilize the starting point over-drive value, the terminal over-drive value and the fitting coefficient solution of each first area
The over-drive value table is pressed to obtain N number of over-drive value of each first area, thus the over-drive value after being decompressed
Table.
2. over-drive value table optimized treatment method according to claim 1, which is characterized in that described described each first
Linear fit is carried out in region, obtains the corresponding fitting coefficient in each first area, comprising:
Obtain the N number of over-drive value for including in each first area；
N number of over-drive value is normalized, N number of normalization over-drive value is obtained；
Obtain P experimental fit coefficient, wherein P is the natural number greater than 0；
Experimental fit coefficient each in the P experimental fit coefficient is corresponded to N number of normalization over-drive value to return
One changes extension, respectively obtains the normalizing coefficient that one group of number is N corresponding to each experimental fit coefficient；
Calculate separately that the corresponding one group of normalizing coefficient of each experimental fit coefficient is corresponding with the first area N number of to be normalized
One-to-one N number of difference of driving value, and calculate square of N number of difference；
Calculate N number of difference square sum；
Choose N number of difference square and fitting coefficient that the smallest experimental fit coefficient is as corresponding first area.
3. over-drive value table optimized treatment method according to claim 2, which is characterized in that described to be driven to N number of cross
Dynamic value is normalized, and obtains N number of normalization over-drive value and includes:
Set the normalization over-drive value G of first area starting point1It is 0, the normalization over-drive value G of first area terminalNIt is 1, root
According to formula a=1/ (QN-Q1) increment value a is calculated, and according to formula Zn=(Qn-Q1) normalization of nth point is calculated in * a
Driving value Gn, wherein QNFor terminal over-drive value, QnFor the over-drive value of nth point, Q11st point of over-drive value, and 0 < n < N.
4. over-drive value table optimized treatment method according to claim 3, which is characterized in that described to test described P
Extension is normalized corresponding to N number of normalization over-drive value in each experimental fit coefficient in fitting coefficient, respectively obtains
One group of number corresponding to each experimental fit coefficient is that the normalizing coefficient of N includes:
For any experimental fit coefficient S, the normalizing coefficient X of the 1st point of setting1It is 0, the normalizing coefficient X of N pointNIt is 1, Yi Jigen
According to formula Xn=S* (Xn+x-Xn-x) calculate the normalizing coefficient X of nth pointn, wherein Xn+xFor the normalizing coefficient of the n-th+x point, Xn-xFor
The normalizing coefficient of n-th-x point, n < n+x < N, 0 < n-x < n.
5. over-drive value table optimized treatment method according to claim 1, which is characterized in that described according to described each
Starting point over-drive value, terminal over-drive value and the fitting coefficient in one region generate a compressible drive value table, and described in storage
Compressible drive value table, comprising:
By the fitting coefficient multiplied by 255 and round obtain the fitting coefficient after a conversion；And
It is generated according to the fitting coefficient after the starting point over-drive value, terminal over-drive value and the conversion of each first area
The compressible drive value table, and store the compressible drive value table.
6. over-drive value table optimized treatment method according to claim 1, which is characterized in that described to utilize described each the
The starting point over-drive value, the terminal over-drive value and the fitting coefficient in one region decompress the over-drive value table and obtain
To N number of over-drive value of each first area, so that the method is also wrapped after over-drive value table after being decompressed
It includes:
Previous grayscale value over-drive value corresponding with target gray scale value is inquired according to the over-drive value table after the decompression.
7. a kind of liquid crystal display, which is characterized in that including processor and memory, the processor includes:
Zoning unit, for over-drive value table progress subregion to be obtained at least one first area, wherein in each first area
Include N number of over-drive value, wherein N is the natural number greater than 0；
It is corresponding to obtain each first area for carrying out linear fit in each first area for computing unit
Fitting coefficient；
Storage control unit, for according to the starting point over-drive value of each first area, terminal over-drive value and described quasi-
Collaboration number generates a compressible drive value table, and stores the compressible drive value table；
Query unit, for using the starting point over-drive value of each first area, the terminal over-drive value and
The fitting coefficient decompresses the over-drive value table and obtains N number of over-drive value of each first area, to be decompressed
Over-drive value table after contracting.
8. liquid crystal display according to claim 7, which is characterized in that the computing unit includes:
Over-drive value obtains subelement, for obtaining the N number of over-drive value for including in each first area；
Computation subunit is normalized, for N number of over-drive value to be normalized, N number of normalization is obtained and overdrives
Value；
Fitting coefficient obtains subelement, for obtaining P experimental fit coefficient, wherein P is the natural number greater than 0；
Computation subunit is extended, for N number of returning experimental fit coefficient each in the P experimental fit coefficient corresponding to described
Extension is normalized in one change over-drive value, respectively obtains the normalizing that one group of number is N corresponding to each experimental fit coefficient
Coefficient；And
Fitting coefficient computation subunit, for calculating separately the corresponding one group of normalizing coefficient of each experimental fit coefficient and described the
One-to-one N number of difference of the corresponding N number of normalization over-drive value in one region, and square of N number of difference is calculated, and
Calculate N number of difference square sum, then, choose N number of difference square and the smallest experimental fit coefficient make
For the fitting coefficient of the corresponding first area.
9. liquid crystal display according to claim 8, which is characterized in that the fitting coefficient computation subunit is also used
In:
By the fitting coefficient multiplied by 255 and round obtain the fitting coefficient after a conversion.
10. liquid crystal display according to claim 7, which is characterized in that the query unit is also used to:
Previous grayscale value over-drive value corresponding with target gray scale value is inquired according to the over-drive value table after the decompression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852032.3A CN106205545B (en) | 2016-09-26 | 2016-09-26 | Over-drive value table optimized treatment method and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852032.3A CN106205545B (en) | 2016-09-26 | 2016-09-26 | Over-drive value table optimized treatment method and liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106205545A CN106205545A (en) | 2016-12-07 |
| CN106205545B true CN106205545B (en) | 2019-04-26 |
Family
ID=57520710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610852032.3A Active CN106205545B (en) | 2016-09-26 | 2016-09-26 | Over-drive value table optimized treatment method and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106205545B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402465B (en) * | 2017-08-04 | 2020-04-10 | 中国科学院光电技术研究所 | Method for establishing overdrive lookup table |
| CN107665680A (en) * | 2017-09-22 | 2018-02-06 | 南京熊猫电子制造有限公司 | A kind of method for reducing the high-definition liquid crystal display device response time |
| CN107799086A (en) * | 2017-11-22 | 2018-03-13 | 深圳市华星光电技术有限公司 | The over-driving method and device of liquid crystal display panel |
| US10878779B2 (en) | 2018-09-21 | 2020-12-29 | Chongqing Hkc Optoelectronics Technology Co., Ltd. | Display panel, method of establishing overdrive lookup table for the display panel, and readable storage medium |
| CN109215553B (en) * | 2018-09-21 | 2021-04-27 | 重庆惠科金渝光电科技有限公司 | Display panel, method for establishing overdrive lookup table of display panel and readable storage medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7460131B2 (en) * | 2003-09-30 | 2008-12-02 | Sharp Laboratories Of America, Inc. | Methods and systems for processing image data for display on LC displays |
| TWI391895B (en) * | 2007-07-16 | 2013-04-01 | Novatek Microelectronics Corp | Display driving apparatus and method thereof |
| CN101426138A (en) * | 2008-12-05 | 2009-05-06 | 硅谷数模半导体（北京）有限公司 | LCD overdrive frame buffering data compression method and apparatus |
| CN105679269A (en) * | 2016-03-30 | 2016-06-15 | 深圳市华星光电技术有限公司 | Display picture output method and output device |
-
2016
- 2016-09-26 CN CN201610852032.3A patent/CN106205545B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106205545A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106205545B (en) | Over-drive value table optimized treatment method and liquid crystal display | |
| US8947216B2 (en) | Encoding dynamic haptic effects | |
| CN107886167A (en) | Neural network computing device and method | |
| CN101901575A (en) | Display control device | |
| US8704740B2 (en) | Method of establishing a gamma table | |
| CN106601173B (en) | time schedule controller, pixel driving method and touch display device | |
| CN101388190B (en) | Dithering method for an LCD | |
| CN105895030B (en) | Controller for persistence display panel | |
| CN109215595A (en) | Display driving method, display drive apparatus, data drive circuit and display device | |
| CN101577095A (en) | Liquid crystal display and driving method thereof | |
| CN111105375A (en) | Image generation method, model training method and device thereof, and electronic equipment | |
| US9245485B1 (en) | Dithering techniques for electronic paper displays | |
| CN110007786B (en) | Method and related device for optimizing handle mapping to mouse sensitivity | |
| CN109147674A (en) | AMOLED shows ghost eliminating method, display terminal and storage medium | |
| US20230343269A1 (en) | Temperature-Based Pixel Drive Compensation | |
| US10971079B2 (en) | Multi-frame-history pixel drive compensation | |
| US8818119B2 (en) | Dynamic creation of trend graph | |
| CN104615349A (en) | Information processing method and electronic device | |
| CN112304421B (en) | Processing method of gray scale intensity data, storage medium and terminal equipment | |
| CN114201627A (en) | Display method, device and equipment for electronic ink screen and storage medium | |
| CN114493983A (en) | Compression method and device of character data, storage medium and electronic equipment | |
| CN104966504B (en) | grid line driving method and device | |
| TWI764394B (en) | Current attenuation method for display driving, flat panel display, and information processing device | |
| CN102270435A (en) | LCD control apparatus and method thereof | |
| CN113744122B (en) | Multi-layer display coprocessor for SVDU of nuclear power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518132 No. 9-2 Ming Avenue, Guangming New District, Guangdong, Shenzhen Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 518132 No. 9-2 Ming Avenue, Guangming New District, Guangdong, Shenzhen Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |