CN104599656B - The method of GTG during the imaging of the sub-pixel of correcting liquid crystal panel - Google Patents
The method of GTG during the imaging of the sub-pixel of correcting liquid crystal panel Download PDFInfo
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- CN104599656B CN104599656B CN201510083587.1A CN201510083587A CN104599656B CN 104599656 B CN104599656 B CN 104599656B CN 201510083587 A CN201510083587 A CN 201510083587A CN 104599656 B CN104599656 B CN 104599656B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The method of GTG when the present invention provides a kind of imaging of sub-pixel of correcting liquid crystal panel, including：First brightness value of the sub-pixel of the i-th color of acquisition liquid crystal panel in maximum gray；Calculate second brightness value of the sub-pixel in each GTG j；Obtain threeth brightness value of the boss's pixel region of the sub-pixel in the case of facing in each GTG r；Obtain fourth brightness value of the sub-sub-pixel region of the sub-pixel in the case of facing in each GTG s；It is determined that the valued combinations of the GTG of boss's pixel region of the sub-pixel of predetermined condition and the GTG in sub-sub-pixel region are met in GTG j；It is determined that total color difference of the grey menu that liquid crystal panel shows when causing the sub-pixel that GTG j is presented using each valued combinations in the case of facing and in the case of stravismus；The valued combinations that valued combinations corresponding to minimum total color difference are defined as using when the sub-pixel is presented GTG j.The present invention can reduce the colour cast of liquid crystal panel display image.
Description
Technical field
The invention belongs to LCD Technology field, more particularly, it relates to a kind of sub-pixel of correcting liquid crystal panel
Imaging when GTG method.
Background technology
In recent years, liquid crystal display (LCD) with its small volume, lightweight, display quality is high the advantages of gradually instead of with
Past cathode-ray picture tube (CRT) display.The picture shown by liquid crystal panel in liquid crystal display is arranged by many arrays
The pixel of row is constituted, and each pixel is generally by showing the sub-pixel group of shades of colour respectively into shown by each sub-pixel
Brightness by liquid crystal display the brightness of backlight module and the GTG of sub-pixel of the liquid crystal panel together decide on.Existing liquid
In the driving method of crystal display, most common method is to maintain a constant brightness using the brightness of backlight module, according to input
Image data, respectively gray scale voltage in different sizes drive the liquid crystal in each sub-pixel of the liquid crystal panel to be revolved
Turn, the light transmittance (that is, brightness) of each sub-pixel is determined so as to by the anglec of rotation of liquid crystal molecule, is shown with reaching GTG
With the purpose of imaging.
With the continuous application of liquid crystal display, requirement of the people to the visual angle of liquid crystal display is also gradually stepped up, thus,
Visible angle be have developed than larger wide-angle liquid crystal display, for example, MVALCD etc..This wide-angle liquid crystal display can
The display of wide viewing angle image is realized by 2D1G technologies.In liquid crystal panel using 2D1G technologies, as shown in Fig. 2 by sub- picture
20 points of element is boss's pixel region M and sub-sub-pixel region S.By boss's pixel region M and sub-sub-pixel to sub-pixel 20
Region S applies data signal (that is, gray scale voltage) to make sub-pixel 20 show corresponding GTG, and then is imaged.But, extensively
But there is colour cast in the wide viewing angle image shown by viewing angle liquid crystal displays.
The content of the invention
To overcome the deficiencies in the prior art, the exemplary embodiment of the present invention provides one kind can reduce display image colour cast
Correcting liquid crystal panel sub-pixel imaging when GTG method.
The one side of exemplary embodiment of the invention, there is provided during a kind of imaging of sub-pixel of correcting liquid crystal panel
The method of GTG, each pixel of the liquid crystal panel include the sub-pixel of n color, wherein, n is the integer more than 0, each
Sub-pixel includes boss's pixel region and sub-sub-pixel region, it is characterised in that methods described includes：A) in the case of measurement is faced
The liquid crystal panel n color in the i-th color gamma curve, to obtain the son of the i-th color of the liquid crystal panel
First brightness value of the pixel in maximum gray m, wherein, i ∈ [1, n]；B) by first brightness value and predetermined gamma value,
The sub-pixel of the i-th color corresponding second brightness value L (j) in each GTG j is calculated, wherein, j ∈ [t, m], t are minimum ash
Rank；Boss's pixel region corresponding 3rd brightness in each GTG r of the sub-pixel of the i-th color in the case of c) acquisition is faced
Value Lm (r), wherein, r ∈ [t, m]；The sub-sub-pixel region of the sub-pixel of the i-th color in the case of d) acquisition is faced is in each ash
Corresponding 4th brightness value L s (s) during rank s, wherein, s ∈ [t, m]；E) being determined based on the second brightness value L (j) is made in GTG j
Corresponding 3rd brightness value L m (r) and corresponding 4th brightness value L s (s) meet the master of the sub-pixel of the i-th color of predetermined condition
The valued combinations of the GTG of subpixel area and the GTG in sub-sub-pixel region；F) determine the is being caused using each valued combinations
The grey menu that the liquid crystal panel shows when the sub-pixel of i colors is presented GTG j is in the case of facing and in the case of stravismus
Total color difference；Use when the sub-pixel that the valued combinations corresponding to minimum total color difference are defined as the i-th color being presented GTG j g)
Valued combinations.
Alternatively, determine in step f) and GTG j is presented in the sub-pixel that the i-th color is caused using any one valued combinations
The grey menu that Shi Suoshu liquid crystal panels show in the case of facing and stravismus in the case of total color difference the step of include：F1) divide
Do not obtain what the liquid crystal panel when the sub-pixel that the i-th color is caused using one valued combinations is presented GTG j showed
Tristimulus values of the grey menu in the case of facing and in the case of stravismus；F2) counted based on the tristimulus values in the case of facing respectively
Calculate grey menu that the liquid crystal panel shows psychological lightness and psychometric chroma in the case of facing, and based on stravismus in the case of
Tristimulus values calculate grey menu that the liquid crystal panel shows psychological lightness and psychometric chroma in the case of stravismus respectively；
F3) based on described facing in the case of psychological lightness and psychological lightness and psychometric chroma in the case of psychometric chroma, the stravismus,
Calculate the total color difference of grey menu that the liquid crystal panel shows in the case of facing and in the case of stravismus.
Alternatively, step b) includes：Based on equation below, by first brightness value and predetermined gamma value, calculate
The sub-pixel of the i-th color corresponding second brightness value L (j) in each GTG j：
L (j)=L (m) × (j/m)γ
Wherein, γ is predetermined gamma value, and L (m) is first brightness value of the sub-pixel of the i-th color in maximum gray m.
Alternatively, step c) includes：Close the sub-sub-pixel region of the sub-pixel of the i-th color；In the case of measurement is faced
The gamma curve of the i-th color of the liquid crystal panel, to obtain boss's pixel region of the sub-pixel of the i-th color in each GTG
Corresponding 3rd brightness value L m (r) during r, step d) include：Close boss's pixel region of the sub-pixel of the i-th color；Measurement is just
The gamma curve of the i-th color of the liquid crystal panel under optionally, to obtain the sub-sub-pixel region of the sub-pixel of the i-th color
Corresponding 4th brightness value L s (s) in each GTG s.
Alternatively, in step e), predetermined condition can be represented by following formula：
[Lm(r)+Ls(s)-L(j)]/L(j)<S
Wherein, S is predetermined value.
A kind of another aspect of exemplary embodiment of the invention, there is provided imaging of the sub-pixel of correcting liquid crystal panel
When GTG method, each pixel of the liquid crystal panel includes the sub-pixel of n color, wherein, n is the integer more than 0, often
One sub-pixel includes boss's pixel region and sub-sub-pixel region, it is characterised in that methods described includes：A) measure just optionally
Under the liquid crystal panel n color in the i-th color gamma curve, to obtain the i-th color of the liquid crystal panel
First brightness value of the sub-pixel in maximum gray m, wherein, i ∈ [1, n]；B) by first brightness value and predetermined gamma
Value, calculate the i-th color sub-pixel in each GTG j corresponding second brightness value L (j), wherein, j ∈ [t, m], t for minimum
GTG；C) each for determining the GTG r of boss's pixel region of the sub-pixel of the i-th color and GTG s in sub-sub-pixel region takes
The grey menu that the liquid crystal panel shows that makes among value combination is less than with the total color difference in the case of stravismus in the case of facing
The valued combinations of predetermined value, wherein, r ∈ [t, m], s ∈ [t, m]；The master of the sub-pixel of the i-th color in the case of d) acquisition is faced
Corresponding 3rd brightness value during the GTG of boss's pixel region of the subpixel area in the valued combinations in each determination；e)
Acquisition face in the case of the i-th color sub-pixel sub-sub-pixel region in each determination valued combinations in second son
Corresponding 4th brightness value during the GTG of pixel region；F) obtained among the valued combinations for determining based on the second brightness value L (j)
Corresponding 3rd brightness value and corresponding 4th brightness value is made to meet the valued combinations of predetermined condition in GTG j；G) will obtain
Valued combinations be defined as the valued combinations that the use when sub-pixel of the i-th color is presented GTG j.
Alternatively, the total color difference in step c) is obtained as follows：C1) obtain what the liquid crystal panel showed respectively
Tristimulus values of the grey menu in the case of facing and in the case of stravismus；C2) counted based on the tristimulus values in the case of facing respectively
Calculate grey menu that the liquid crystal panel shows psychological lightness and psychometric chroma in the case of facing, and based on stravismus in the case of
Tristimulus values calculate grey menu that the liquid crystal panel shows psychological lightness and psychometric chroma in the case of stravismus respectively；
C3) based on described facing in the case of psychological lightness and psychological lightness and psychometric chroma in the case of psychometric chroma, the stravismus,
Calculate the total color difference of grey menu that the liquid crystal panel shows in the case of facing and in the case of stravismus.
Alternatively, step b) includes：Based on equation below, by first brightness value and predetermined gamma value, calculate
The sub-pixel of the i-th color corresponding second brightness value L (j) in each GTG j：
L (j)=L (m) × (j/m)γ
Wherein, γ is predetermined gamma value, and L (m) is first brightness value of the sub-pixel of the i-th color in maximum gray m.
Alternatively, step d) includes：Close the sub-sub-pixel region of the sub-pixel of the i-th color；In the case of measurement is faced
The gamma curve of the i-th color of the liquid crystal panel, to obtain boss's pixel region of the sub-pixel of the i-th color in each
It is determined that valued combinations in boss's pixel region GTG when corresponding 3rd brightness value, step e) includes：Close the i-th color
Sub-pixel boss's pixel region；Measurement face in the case of the liquid crystal panel the i-th color gamma curve, with obtain
During the GTG in sub-sub-pixel region of the sub-sub-pixel region of the sub-pixel of the i-th color in the valued combinations in each determination
Corresponding 4th brightness value.
Alternatively, the predetermined condition in step f) is to cause
[Lm (x)+Ls (y)-L (j)]/L (j) is minimum,
Wherein, Lm (x) be determine valued combinations in boss's pixel region GTG x corresponding to the 3rd brightness value,
Ls (y) be determine valued combinations in sub-sub-pixel region GTG y corresponding to the 4th brightness value.
The method of GTG during the imaging of the sub-pixel of the correcting liquid crystal panel that exemplary embodiment of the invention is provided,
GTG when can effectively correct the imaging of sub-pixel, so as to reduce the colour cast of liquid crystal panel display image.
The other aspect of the present invention and/or advantage will be partly illustrated in following description, some is by retouching
State and will be apparent, or the enforcement of the present invention can be passed through and be learnt.
Description of the drawings
By the description to embodiment for carrying out below in conjunction with the accompanying drawings, above-mentioned and/or other objects and advantages of the present invention
Will become apparent, wherein：
GTG when Fig. 1 is the imaging of the sub-pixel for illustrating a kind of correcting liquid crystal panel according to an exemplary embodiment of the present invention
Method flow chart；
Fig. 2 is the schematic diagram of the sub-pixel unit of the employing 2D1G technologies for illustrating existing liquid crystal panel；
Ash when Fig. 3 is the imaging of the sub-pixel for illustrating another kind of correcting liquid crystal panel according to an exemplary embodiment of the present invention
The flow chart of the method for rank.
Specific embodiment
The exemplary embodiment of the present invention is will be described in now, the example of the embodiment is shown in the drawings, wherein, phase
Same label indicates identical part.The embodiment will be illustrated by referring to accompanying drawing below, to explain the present invention.
GTG when Fig. 1 is the imaging of the sub-pixel for illustrating a kind of correcting liquid crystal panel according to an exemplary embodiment of the present invention
Method flow chart.The liquid crystal panel includes multiple pixels, and each pixel includes the sub-pixel of n color, each sub- picture
Element includes boss's pixel region and sub-sub-pixel region.Here, n is the integer more than 0.As an example, the liquid crystal panel can
Think RGB liquid crystal panels, RGBY liquid crystal panels or RGBW liquid crystal panels etc..When the liquid crystal panel is RGB liquid crystal panels, n
For 3.When the liquid crystal panel is RGBY liquid crystal panels or RGBW liquid crystal panels, n is 4.
As shown in figure 1, in step S101, measuring the i-th color in n color of the liquid crystal panel in the case of facing
Gamma curve, to obtain first brightness value of the sub-pixel of the i-th color of the liquid crystal panel in maximum gray m.Here,
I ∈ [1, n].It is described be just considered as with the vertical direction of liquid crystal panel in 0 degree of view liquid crystal panel.The gamma curve
To represent the curve of GTG and brightness relationship.Here, the gamma curve can be measured by existing various methods.
The exponent number of GTG is by the different and different of liquid crystal panel, when liquid crystal panel is 8 bit liquid crystal panel, the rank of GTG
Number is 256, and GTG can be represented sequentially as 0,1,2 ..., 255.Now, maximum gray m is 255, and minimum gray is 0.Work as liquid crystal
When panel is 10 bit liquid crystal panel, the exponent number of GTG is 1024, and GTG can be represented sequentially as 0,1,2 ..., 1023.Now,
Maximum gray m is 1023, and minimum gray is 0.
In step S102, the first brightness value of the sub-pixel of the i-th color obtained by step S101 in maximum gray m
With predetermined gamma value, calculate the i-th color sub-pixel in each GTG j corresponding second brightness value L (j).Here, j ∈ [t,
M], t is minimum gray.As an example, second brightness value L (j) can be calculated by following formula：
L (j)=L (m) × (j/m)γ (1)
Here, γ is predetermined gamma value, and L (m) is first brightness value of the sub-pixel of the i-th color in maximum gray m.In advance
Determine gamma value to be determined according to the optimal display result of liquid crystal panel, it is preferable that predetermined gamma value is 2.2.Second brightness value L
J () changes with the change of GTG j.
In step S103, acquisition face in the case of the i-th color sub-pixel boss's pixel region in each GTG r
Corresponding 3rd brightness value L m (r).Here, r ∈ [t, m].The 3rd brightness value can be obtained by existing various methods
Lm(r).Preferably, the step of obtaining three brightness value L m (r) includes：
First, close the sub-sub-pixel region of the sub-pixel of the i-th color.Here, can be closed by existing various methods
Close the sub-sub-pixel region of the sub-pixel of the i-th color；
Then, the gamma curve of the i-th color of the liquid crystal panel in the case of measurement is faced, to obtain the i-th color
Boss's pixel region of sub-pixel corresponding 3rd brightness value L m (r) in each GTG r.Here, can pass through existing various
Method is measuring the gamma curve.3rd brightness value L m (r) changes with the change of GTG r.
In step S104, acquisition face in the case of the i-th color sub-pixel sub-sub-pixel region in each GTG s
Corresponding 4th brightness value L s (s).Here, s ∈ [t, m].The 4th brightness value can be obtained by existing various methods
Ls(s).Preferably, the step of obtaining four brightness value L s (s) includes：
First, close boss's pixel region of the sub-pixel of the i-th color.Here, can be closed by existing various methods
Close boss's pixel region of the sub-pixel of the i-th color；
Then, the gamma curve of the i-th color of the liquid crystal panel in the case of measurement is faced, to obtain the i-th color
The sub-sub-pixel region of sub-pixel corresponding 4th brightness value L s (s) in each GTG s.Here, can pass through existing various
Method is measuring the gamma curve.4th brightness value L s (s) changes with the change of GTG s.
In step S105, being determined based on the second brightness value L (j) that step S102 is calculated makes the corresponding 3rd in GTG j
Brightness value L m (r) and corresponding 4th brightness value L s (s) meet boss's pixel region of the sub-pixel of the i-th color of predetermined condition
GTG r and sub-sub-pixel region GTG s valued combinations.Here, predetermined condition can be represented by following formula：
[Lm(r)+Ls(s)-L(j)]/L(j)<S (2)
Here, S is predetermined value.The value of S can be set according to the characteristic of liquid crystal panel.
In other words, step S105 is that all value groups of the GTG r and GTG s that meet formula (2) are found for GTG j
Close, be used as the candidate's valued combinations for causing the sub-pixel of the i-th color that GTG j is presented.
In step S106, it is determined that (that is, dividing when the sub-pixel that the i-th color is caused using each valued combinations is presented GTG j
Not so that the GTG in the GTG of boss's pixel region of the sub-pixel of the i-th color and sub-sub-pixel region is each valued combinations institute
The GTG of instruction, is presented grey menu that the GTG j) liquid crystal panels show just to attempt using different valued combinations
Total color difference in the case of optionally lower and stravismus.The stravismus is to be in the visual angle of predetermined angular with the vertical direction of liquid crystal panel
Observation liquid crystal panel.The predetermined angular can be arbitrarily angled less than 90 degree more than 0 degree.It is preferred here that described predetermined
Angle is 60 degree.
The total color difference can be determined by existing various methods.Preferably, it is determined that using any one value group
The grey menu that the liquid crystal panel shows when closing the sub-pixel presentation GTG j for causing the i-th color is in the case of facing and looks side ways
In the case of total color difference the step of include：
First, obtain respectively described in when the sub-pixel that the i-th color is caused using one valued combinations is presented GTG j
Tristimulus values of the grey menu that liquid crystal panel shows in the case of facing and in the case of stravismus.The tristimulus values can be by existing
The method of the various acquisition tristimulus values having is obtaining；
Secondly, calculate the grey menu that the liquid crystal panel shows respectively based on the tristimulus values in the case of facing facing
In the case of psychological lightness and psychometric chroma, and calculate the liquid crystal panel respectively based on the tristimulus values in the case of stravismus and show
Psychological lightness and psychometric chroma of the grey menu in the case of stravismus.Here, psychological lightness and psychometric chroma can pass through existing
Various computational methods calculating；
Then, based on described facing in the case of psychological lightness and the psychological lightness in the case of psychometric chroma, the stravismus
And psychometric chroma, total color difference of the grey menu that the calculating liquid crystal panel shows in the case of facing and in the case of stravismus.This
In, total color difference can be calculated by existing various computational methods.
As an example, the total color difference can be calculated based on CIE1976 color gamut systems.
It is appreciated that can determine that according to the step of the above-mentioned determination total color difference GTG r determined by step S105 and
The grey menu that the liquid crystal panel shows when each valued combinations of GTG s cause the sub-pixel of the i-th color that GTG j is presented exists
Total color difference in the case of facing and in the case of stravismus.
In step S107, the valued combinations corresponding to total color difference minimum in total color difference determined by step S106 are determined
The valued combinations that use when GTG j is presented for the sub-pixel of the i-th color.That is, the sub-pixel of the i-th color is used when GTG j is presented
The valued combinations of GTG of GTG and sub-sub-pixel region of boss's pixel region be in value group determined by step S105
The GTG r for making the total color difference minimum in conjunction and the valued combinations of GTG s.
In exemplary embodiments of the present invention, by step S105-S107 can determine that respectively with the sub-pixel of the i-th color
The GTG r and second son of boss's pixel region of each GTG j (that is, j is respectively each value of [t, m]) the corresponding sub-pixel
Valued combinations (that is, the GTG r and sub-sub-pixel of the boss's pixel region for using when GTG j is presented of the GTG s of pixel region
The valued combinations of the GTG s in region).Thus, each color respectively with liquid crystal panel can determine that by step S101-S107
Each GTG j (that is, j is respectively each value of [t, m]) the corresponding institute of the sub-pixel of (that is, i is respectively each value of [1, n])
State the valued combinations of the GTG r of boss's pixel region of sub-pixel and the GTG s in sub-sub-pixel region.
It is appreciated that each step during a kind of imaging of the sub-pixel of correcting liquid crystal panel shown in Fig. 1 in the method for GTG
Rapid execution sequence is not limited to this, according to circumstances can also adjust accordingly.
Ash when Fig. 3 is the imaging of the sub-pixel for illustrating another kind of correcting liquid crystal panel according to an exemplary embodiment of the present invention
The flow chart of the method for rank.The liquid crystal panel includes multiple pixels, and each pixel includes the sub-pixel of n color, Mei Yizi
Pixel includes boss's pixel region and sub-sub-pixel region.Here, n is the integer more than 0.As an example, the liquid crystal panel
Can be RGB liquid crystal panels, RGBY liquid crystal panels or RGBW liquid crystal panels etc..When the liquid crystal panel is RGB liquid crystal panels,
N is 3.When the liquid crystal panel is RGBY liquid crystal panels or RGBW liquid crystal panels, n is 4.
As shown in figure 3, in step S301, measuring the i-th color in n color of the liquid crystal panel in the case of facing
Gamma curve, to obtain first brightness value of the sub-pixel of the i-th color of the liquid crystal panel in maximum gray m.Here,
I ∈ [1, n].It is described be just considered as with the vertical direction of liquid crystal panel in 0 degree of view liquid crystal panel.The gamma curve
To represent the curve of GTG and brightness relationship.Here, the gamma curve can be measured by existing various methods.
The exponent number of GTG is by the different and different of liquid crystal panel, when liquid crystal panel is 8 bit liquid crystal panel, the rank of GTG
Number is 256, and GTG can be represented sequentially as 0,1,2 ..., 255.Now, maximum gray m is 255, and minimum gray is 0.Work as liquid crystal
When panel is 10 bit liquid crystal panel, the exponent number of GTG is 1024, and GTG can be represented sequentially as 0,1,2 ..., 1023.Now,
Maximum gray m is 1023, and minimum gray is 0.
In step S302, the first brightness value of the sub-pixel of the i-th color obtained by step S301 in maximum gray m
With predetermined gamma value, calculate the i-th color sub-pixel in each GTG j corresponding second brightness value L (j).Here, j ∈ [t,
M], t is minimum gray.As an example, second brightness value L (j) can be calculated by following formula：
L (j)=L (m) × (j/m)γ (3)
Here, γ is predetermined gamma value, and L (m) is first brightness value of the sub-pixel of the i-th color in maximum gray m.In advance
Determine gamma value to be determined according to the optimal display result of liquid crystal panel, it is preferable that predetermined gamma value is 2.2.Second brightness value L
J () changes with the change of GTG j.
In step S303, the GTG r of boss's pixel region of the sub-pixel of the i-th color and the ash in sub-sub-pixel region are determined
The grey menu that the liquid crystal panel shows of making among each valued combinations of rank s is in the case of facing and in the case of stravismus
Valued combinations of the total color difference less than predetermined value.Here, r ∈ [t, m], s ∈ [t, m].As an example, the sub-pixel of the i-th color
Each valued combinations of the GTG r of boss's pixel region and the GTG s in sub-sub-pixel region be represented by (r, s) | r ∈ [t,
M], s ∈ [t, m] }.The stravismus is to be in the view liquid crystal panel of predetermined angular with the vertical direction of liquid crystal panel.Institute
It can be arbitrarily angled less than 90 degree more than 0 degree to state predetermined angular.It is preferred here that the predetermined angular is 60 degree.Can root
Predetermined value is set according to the characteristic of liquid crystal panel.
Particularly, first can obtain in step S303 the sub-pixel in the i-th color boss's pixel region GTG r and time
The grey menu that liquid crystal panel during each valued combinations of the GTG s of subpixel area shows is in the case of facing and tiltedly
Total color difference under optionally, it is then determined that in each total color difference less than predetermined value total color difference corresponding to valued combinations.
Here, the total color difference can be obtained by existing various methods.Preferably, obtain the sub- picture in the i-th color
Total color difference during any one valued combinations of the GTG s of the GTG r and sub-sub-pixel region of boss's pixel region of element
The step of include：
First, obtain the grey menu that the liquid crystal panel shows in described any one valued combinations respectively facing
In the case of and stravismus in the case of tristimulus values.The tristimulus values can by it is existing it is various obtain tristimulus values methods come
Obtain；
Secondly, calculate the grey menu that the liquid crystal panel shows respectively based on the tristimulus values in the case of facing facing
In the case of psychological lightness and psychometric chroma, and calculate the liquid crystal panel respectively based on the tristimulus values in the case of stravismus and show
Psychological lightness and psychometric chroma of the grey menu in the case of stravismus.Here, psychological lightness and psychometric chroma can pass through existing
Various computational methods calculating；
Then, based on described facing in the case of psychological lightness and the psychological lightness in the case of psychometric chroma, the stravismus
And psychometric chroma, total color difference of the grey menu that the calculating liquid crystal panel shows in the case of facing and in the case of stravismus.This
In, total color difference can be calculated by existing various computational methods.
As an example, the total color difference can be calculated based on CIE1976 color gamut systems.
It is appreciated that the boss of the sub-pixel in the i-th color can be obtained the step of total color difference according to above-mentioned acquisition
Total color difference during each valued combinations of the GTG r of pixel region and the GTG s in sub-sub-pixel region.
After each total color difference is obtained, each total color difference is compared with predetermined value, it is determined that less than the total color difference institute of predetermined value
Corresponding valued combinations.
In step S304, acquisition face in the case of the i-th color sub-pixel boss's pixel region true in each
Corresponding 3rd brightness value during the GTG of the boss's pixel region in fixed valued combinations.Can be obtained by existing various methods
Take the 3rd brightness value.Preferably, the step of obtaining three brightness value includes：
First, close the sub-sub-pixel region of the sub-pixel of the i-th color.Here, can be closed by existing various methods
Close the sub-sub-pixel region of the sub-pixel of the i-th color；
Then, the gamma curve of the i-th color of the liquid crystal panel in the case of measurement is faced, to obtain the i-th color
Corresponding the during the GTG of boss pixel region of the boss's pixel region of sub-pixel in the valued combinations in each determination
Three brightness values.Here, the gamma curve can be measured by existing various methods.
In step S305, acquisition face in the case of the i-th color sub-pixel sub-sub-pixel region true in each
Corresponding 4th brightness value during the GTG in the sub-sub-pixel region in fixed valued combinations.Can be obtained by existing various methods
Take the 4th brightness value.Preferably, the step of obtaining four brightness value includes：
First, close boss's pixel region of the sub-pixel of the i-th color.Here, can be closed by existing various methods
Close boss's pixel region of the sub-pixel of the i-th color；
Then, the gamma curve of the i-th color of the liquid crystal panel in the case of measurement is faced, to obtain the i-th color
Corresponding the during the GTG in sub-sub-pixel region of the sub-sub-pixel region of sub-pixel in the valued combinations in each determination
Four brightness values.Here, the gamma curve can be measured by existing various methods.
In step S306, obtained among the valued combinations for determining based on the second brightness value L (j) makes correspondence in GTG j
The 3rd brightness value and corresponding 4th brightness value meet the valued combinations of predetermined condition.Here, predetermined condition is to cause
[Lm (x)+Ls (y)-L (j)]/L (j) is minimum
Here, Lm (x) be determine valued combinations in boss's pixel region GTG x corresponding to the 3rd brightness value,
Ls (y) be determine valued combinations in sub-sub-pixel region GTG y corresponding to the 4th brightness value.
In other words, step S306 be to be directed to GTG j it is determined that valued combinations in find and make [Lm (x)+Ls (y)-L
(j)]/L (j) minimum valued combinations.
In step S307, make when the sub-pixel that the valued combinations that step S306 is obtained are defined as the i-th color is presented GTG j
Valued combinations.
In exemplary embodiments of the present invention, by step S306-S307 can determine that respectively with the sub-pixel of the i-th color
The GTG r and second son of boss's pixel region of each GTG j (that is, j is respectively each value of [t, m]) the corresponding sub-pixel
Valued combinations (that is, the GTG r and sub-sub-pixel of the boss's pixel region for using when GTG j is presented of the GTG s of pixel region
The valued combinations of the GTG s in region).Thus, each color respectively with liquid crystal panel can determine that by step S301-S307
Each GTG j (that is, j is respectively each value of [t, m]) the corresponding institute of the sub-pixel of (that is, i is respectively each value of [1, n])
State the valued combinations of the GTG r of boss's pixel region of sub-pixel and the GTG s in sub-sub-pixel region.
It is appreciated that each in the method for GTG during the imaging of the sub-pixel of another kind of correcting liquid crystal panel shown in Fig. 3
The execution sequence of step is not limited to this, according to circumstances can also adjust accordingly.
The method of GTG during the imaging of the sub-pixel of the correcting liquid crystal panel of exemplary embodiment of the invention, can
GTG when effectively correcting the imaging of sub-pixel, so as to reduce the colour cast of liquid crystal panel display image.
What the above example of the present invention was merely exemplary, and the present invention is not limited to this.Those skilled in the art
It should be appreciated that：Without departing from the principles and spirit of the present invention, can change these embodiments, wherein, this
Bright scope is limited in claim and its equivalent.
Claims (9)
1. during a kind of imaging of sub-pixel of correcting liquid crystal panel GTG method, each pixel of the liquid crystal panel includes n
The sub-pixel of individual color, wherein, n is the integer more than 0, and each sub-pixel includes boss's pixel region and sub-sub-pixel region,
Characterized in that, methods described includes：
The gamma curve of the i-th color in n color of the liquid crystal panel in the case of a) measurement is faced, to obtain the liquid
First brightness value of the sub-pixel of the i-th color of crystal panel in maximum gray m, wherein, i ∈ [1, n]；
B) by first brightness value and predetermined gamma value, calculate the sub-pixel of the i-th color in each GTG j corresponding the
Two brightness value Ls (j), wherein, j ∈ [t, m], t is minimum gray；
C) the boss's pixel region for obtaining the sub-pixel of the i-th color in the case of facing is the corresponding 3rd bright in each GTG r
Angle value Lm (r), wherein, r ∈ [t, m]；
D) the sub-sub-pixel region for obtaining the sub-pixel of the i-th color in the case of facing is the corresponding 4th bright in each GTG s
Angle value Ls (s), wherein, s ∈ [t, m]；
E) determined based on the second brightness value L (j) makes corresponding 3rd brightness value L m (r) and corresponding 4th brightness in GTG j
Value Ls (s) meets the GTG of boss's pixel region of the sub-pixel of the i-th color of predetermined condition and the GTG in sub-sub-pixel region
Valued combinations；
F) determination liquid crystal panel when the sub-pixel that the i-th color is caused using each valued combinations is presented GTG j shows
Total color difference of the grey menu in the case of facing and in the case of stravismus；
What is used when the sub-pixel that the valued combinations corresponding to minimum total color difference are defined as the i-th color being presented GTG j g) takes
Value combination；
Wherein, step b) includes：Based on equation below, by first brightness value and predetermined gamma value, the i-th color is calculated
Sub-pixel in each GTG j corresponding second brightness value L (j)：
L (j)=L (m) × (j/m)γ
Wherein, γ is predetermined gamma value, and L (m) is first brightness value of the sub-pixel of the i-th color in maximum gray m.
2. method according to claim 1, it is characterised in that determining in step f) makes using any one valued combinations
The sub-pixel of the i-th color when GTG j is presented the grey menu that shows of the liquid crystal panel in the case of facing with stravismus situation
Under total color difference the step of include：
F1 the liquid crystal surface when the sub-pixel that the i-th color is caused using one valued combinations is presented GTG j) is obtained respectively
Tristimulus values of the grey menu that plate shows in the case of facing and in the case of stravismus；
F2) grey menu that the liquid crystal panel shows is calculated respectively in the case of facing based on the tristimulus values in the case of facing
Psychological lightness and psychometric chroma, and calculate the GTG that the liquid crystal panel shows respectively based on the tristimulus values in the case of stravismus
Psychological lightness and psychometric chroma of the picture in the case of stravismus；
F3) based on described facing in the case of psychological lightness and psychological lightness and psychology in the case of psychometric chroma, the stravismus
Colourity, total color difference of the grey menu that the calculating liquid crystal panel shows in the case of facing and in the case of stravismus.
3. method according to claim 1, it is characterised in that step c) includes：
Close the sub-sub-pixel region of the sub-pixel of the i-th color；
Measurement face in the case of the liquid crystal panel the i-th color gamma curve, to obtain the master of the sub-pixel of the i-th color
Subpixel area corresponding 3rd brightness value L m (r) in each GTG r,
Step d) includes：
Close boss's pixel region of the sub-pixel of the i-th color；
Measurement face in the case of the liquid crystal panel the i-th color gamma curve, with obtain the sub-pixel of the i-th color time
Subpixel area corresponding 4th brightness value L s (s) in each GTG s.
4. method according to claim 1, it is characterised in that predetermined condition can be represented by following formula in step e)：
[Lm (r)+Ls (s)-L (j)]/L (j) ＜ S
Wherein, S is predetermined value.
5. during a kind of imaging of sub-pixel of correcting liquid crystal panel GTG method, each pixel of the liquid crystal panel includes n
The sub-pixel of individual color, wherein, n is the integer more than 0, and each sub-pixel includes boss's pixel region and sub-sub-pixel region,
Characterized in that, methods described includes：
The gamma curve of the i-th color in n color of the liquid crystal panel in the case of a) measurement is faced, to obtain the liquid
First brightness value of the sub-pixel of the i-th color of crystal panel in maximum gray m, wherein, i ∈ [1, n]；
B) by first brightness value and predetermined gamma value, calculate the sub-pixel of the i-th color in each GTG j corresponding the
Two brightness value Ls (j), wherein, j ∈ [t, m], t is minimum gray；
C) determine each value of the GTG r of boss's pixel region of the sub-pixel of the i-th color and the GTG s in sub-sub-pixel region
The grey menu that the liquid crystal panel shows that makes among combination is less than in advance with the total color difference in the case of stravismus in the case of facing
The valued combinations of definite value, wherein, r ∈ [t, m], s ∈ [t, m]；
Boss's pixel region of the sub-pixel of the i-th color in the case of d) acquisition is faced is in the valued combinations in each determination
Boss's pixel region GTG when corresponding 3rd brightness value；
The sub-sub-pixel region of the sub-pixel of the i-th color in the case of e) acquisition is faced is in the valued combinations in each determination
Sub-sub-pixel region GTG when corresponding 4th brightness value；
F) based on the second brightness value L (j) from determine valued combinations among obtain make in GTG j corresponding 3rd brightness value and
Corresponding 4th brightness value meets the valued combinations of predetermined condition；
The valued combinations used when the sub-pixel that the valued combinations of acquisition are defined as the i-th color being presented GTG j g).
6. method according to claim 5, it is characterised in that the total color difference in step c) is obtained as follows：
C1 the tristimulus values of grey menu that the liquid crystal panel shows in the case of facing and in the case of stravismus) are obtained respectively；
C2) grey menu that the liquid crystal panel shows is calculated respectively in the case of facing based on the tristimulus values in the case of facing
Psychological lightness and psychometric chroma, and calculate the GTG that the liquid crystal panel shows respectively based on the tristimulus values in the case of stravismus
Psychological lightness and psychometric chroma of the picture in the case of stravismus；
C3) based on described facing in the case of psychological lightness and psychological lightness and psychology in the case of psychometric chroma, the stravismus
Colourity, total color difference of the grey menu that the calculating liquid crystal panel shows in the case of facing and in the case of stravismus.
7. method according to claim 5, it is characterised in that step b) includes：Based on equation below, by described
One brightness value and predetermined gamma value, calculate the i-th color sub-pixel in each GTG j corresponding second brightness value L (j)：
L (j)=L (m) × (j/m)γ
Wherein, γ is predetermined gamma value, and L (m) is first brightness value of the sub-pixel of the i-th color in maximum gray m.
8. method according to claim 5, it is characterised in that step d) includes：
Close the sub-sub-pixel region of the sub-pixel of the i-th color；
Measurement face in the case of the liquid crystal panel the i-th color gamma curve, to obtain the master of the sub-pixel of the i-th color
Corresponding 3rd brightness value during the GTG of boss's pixel region of the subpixel area in the valued combinations in each determination,
Step e) includes：
Close boss's pixel region of the sub-pixel of the i-th color；
Measurement face in the case of the liquid crystal panel the i-th color gamma curve, with obtain the sub-pixel of the i-th color time
Corresponding 4th brightness value during the GTG in sub-sub-pixel region of the subpixel area in the valued combinations in each determination.
9. method according to claim 5, it is characterised in that the predetermined condition in step f) is to cause
[Lm (x)+Ls (y)-L (j)]/L (j) is minimum,
Wherein, Lm (x) be determine valued combinations in boss's pixel region GTG x corresponding to the 3rd brightness value, Ls (y)
The 4th brightness value corresponding to the GTG y in the sub-sub-pixel region in the valued combinations of determination.
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| CN201510083587.1A CN104599656B (en) | 2015-02-16 | 2015-02-16 | The method of GTG during the imaging of the sub-pixel of correcting liquid crystal panel |
| PCT/CN2015/079512 WO2016131216A1 (en) | 2015-02-16 | 2015-05-21 | Method for correcting imaging grey levels of sub-pixels of liquid crystal panel |
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| CN104599656B (en) * | 2015-02-16 | 2017-04-05 | 深圳市华星光电技术有限公司 | The method of GTG during the imaging of the sub-pixel of correcting liquid crystal panel |
| CN105895042B (en) * | 2016-06-07 | 2018-11-23 | 深圳市华星光电技术有限公司 | The method of the colour cast of liquid crystal display and improvement liquid crystal display |
| KR102555953B1 (en) | 2016-11-04 | 2023-07-17 | 삼성전자주식회사 | Electronic apparatus, display apparatus and control method thereof |
| CN107731184B (en) * | 2017-10-25 | 2019-03-22 | 惠科股份有限公司 | A kind of driving method and display device of display device |
| CN112951147B (en) | 2019-12-09 | 2022-06-10 | 深圳Tcl新技术有限公司 | Display chroma and visual angle correction method, intelligent terminal and storage medium |
| CN114582896B (en) * | 2022-04-29 | 2022-07-26 | 惠科股份有限公司 | Pixel structure, array substrate and manufacturing method |
| CN115019744B (en) * | 2022-07-07 | 2023-11-28 | Tcl华星光电技术有限公司 | Voltage determination method and voltage determination device |
| CN115019745B (en) * | 2022-07-07 | 2023-10-31 | Tcl华星光电技术有限公司 | Voltage determination method and voltage determination device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1538599A2 (en) * | 2003-12-05 | 2005-06-08 | Sharp Kabushiki Kaisha | Liquid crystal display |
| CN102592557A (en) * | 2012-03-01 | 2012-07-18 | 深圳市华星光电技术有限公司 | Simulation method and device for squint angle images |
| CN104157254A (en) * | 2014-08-18 | 2014-11-19 | 深圳市华星光电技术有限公司 | Gamma voltage generating module and liquid crystal panel |
| CN104167194A (en) * | 2014-08-18 | 2014-11-26 | 深圳市华星光电技术有限公司 | Liquid crystal display panel gray-scale value setting method and liquid crystal display |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101513150B1 (en) * | 2008-12-24 | 2015-04-17 | 삼성디스플레이 주식회사 | Display apparatus and timing controller therein |
| US8547405B2 (en) * | 2010-01-19 | 2013-10-01 | Himax Technologies Limited | Gamma voltage generation circuit |
| CN104299592B (en) * | 2014-11-07 | 2016-11-23 | 深圳市华星光电技术有限公司 | Liquid crystal panel and driving method thereof |
| CN104317084B (en) * | 2014-11-07 | 2017-05-17 | 深圳市华星光电技术有限公司 | Liquid crystal panel and driving method thereof |
| CN104599656B (en) * | 2015-02-16 | 2017-04-05 | 深圳市华星光电技术有限公司 | The method of GTG during the imaging of the sub-pixel of correcting liquid crystal panel |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1538599A2 (en) * | 2003-12-05 | 2005-06-08 | Sharp Kabushiki Kaisha | Liquid crystal display |
| CN102592557A (en) * | 2012-03-01 | 2012-07-18 | 深圳市华星光电技术有限公司 | Simulation method and device for squint angle images |
| CN104157254A (en) * | 2014-08-18 | 2014-11-19 | 深圳市华星光电技术有限公司 | Gamma voltage generating module and liquid crystal panel |
| CN104167194A (en) * | 2014-08-18 | 2014-11-26 | 深圳市华星光电技术有限公司 | Liquid crystal display panel gray-scale value setting method and liquid crystal display |
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