CN109712584A - The adjustment method of liquid crystal display device - Google Patents
The adjustment method of liquid crystal display device Download PDFInfo
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- CN109712584A CN109712584A CN201910115189.1A CN201910115189A CN109712584A CN 109712584 A CN109712584 A CN 109712584A CN 201910115189 A CN201910115189 A CN 201910115189A CN 109712584 A CN109712584 A CN 109712584A
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Abstract
The present invention provides a kind of adjustment method of liquid crystal display device.The adjustment method of liquid crystal display device of the invention ties up a voltage group and common voltage is adjusted so that the cross-talk parameters for detecting picture are met the requirements to corresponding when liquid crystal display device shows the corresponding detection picture of selected grayscale, to obtain the selected corresponding target common voltage of grayscale, and common voltage is adjusted when liquid crystal display device shows that other tie up a grayscale corresponding detection picture so that the cross-talk parameters for detecting picture are met the requirements, the corresponding target common voltage of a grayscale is tied up to obtain other, and then it obtains preferred common voltage and adjusts common voltage to the preferred common voltage, then a corresponding voltage group of tying up is adjusted so that the cross-talk parameters for detecting picture are met the requirements when liquid crystal display device shows that other tie up the corresponding detection picture of a grayscale, the crosstalk phenomenon of liquid crystal display device can be effectively improved, it mentions The display effect of high liquid crystal display device.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of adjustment methods of liquid crystal display device.
Background technique
In field of display technology, the panel display apparatus such as liquid crystal display device (Liquid Crystal Display, LCD)
Gradually replace cathode-ray tube (Cathode Ray Tube, CRT) display device.Liquid crystal display device have fuselage it is thin,
The many merits such as power saving, radiationless, are widely used.
Liquid crystal display device on existing market is largely backlight liquid crystal display device comprising liquid crystal display panel
And backlight module (backlight module).Usual liquid crystal display panel is by color film (Color Filter, CF) substrate, film
Transistor (Thin Film Transistor, TFT) array substrate is sandwiched between color membrane substrates and thin-film transistor array base-plate
Liquid crystal (Liquid Crystal, LC) and sealing glue frame (Sealant) composition.The working principle of liquid crystal display panel is two
Place liquid crystal molecule in the parallel glass substrate of piece, there are many tiny electric wire vertically and horizontally among two panels glass substrate,
Liquid crystal molecule is controlled whether by being powered and changes direction, and the light refraction of backlight module is come out and generates picture.
In the use process of existing TFT-LCD, often there is the phenomenon that crosstalk (crosstalk), i.e., entire display
Shielding last subregion will receive the influence in another part region and generates picture display distortion.Liquid crystal display device is caused to generate
Caused by crosstalk phenomenon is mainly driven by it mode, specifically, liquid crystal display device is usually driven using exchange, in order to
Inhibit liquid crystal display device flashing, need adjacent pixel in the liquid crystal display device driving voltage keep polarity on the contrary,
In practical application, the mode that can be realized liquid crystal display device reversal has very much, such as dot inversion, column inversion and row reversion
Etc. driving methods.
However, when realizing that the driving voltage of adjacent pixel keeps polarity opposite on by the way of column inversion, liquid crystal
There is crosstalk phenomenon, such as referring to Fig. 1, grey bottom in the black matrix white edge picture of showing device or grey bottom white edge picture (as shown in Figure 1)
In white edge picture 10, there is a concealed wire 12 and a bright line 13 in two opposite sides up and down of white edge 11, or in the left and right of white edge two
There is abnormal area or abnormal wire in side, this will lead to display picture and generates distortion extremely, reduces the display effect of liquid crystal display device
Fruit.
Summary of the invention
The purpose of the present invention is to provide a kind of adjustment methods of liquid crystal display device, can improve liquid crystal display device
Crosstalk phenomenon improves the display effect of liquid crystal display device.
To achieve the above object, the present invention provides a kind of adjustment method of liquid crystal display device, includes the following steps:
Step S1, liquid crystal display device is provided；The liquid crystal display device access common voltage and be stored with respectively with it is more
It is a preset to tie up that a grayscale is corresponding multiple to tie up a voltage group；First time pretreatment is carried out to liquid crystal display device；
Step S2, choosing multiple one tied up in a grayscale is selected grayscale, shows that liquid crystal display device and selected ash
The corresponding first detection picture of rank；A voltage group is tied up and common voltage is adjusted until the first inspection to corresponding with selected grayscale
It surveys the cross-talk parameters in picture everywhere to be respectively less than or be equal to preset first threshold, using common voltage at this time as selected grayscale
Corresponding target common voltage；
Step S3, choosing multiple one tied up in a grayscale other than selecting grayscale is initial adjustment grayscale, fills liquid crystal display
Display second detection picture corresponding with initial adjustment grayscale is set, common voltage is adjusted until in the second detection picture everywhere
Cross-talk parameters are respectively less than or are equal to first threshold, using common voltage at this time as the corresponding target common voltage of initial adjustment grayscale；
Step S4, step S3 is repeated, until acquisition is each to tie up the corresponding target common voltage of a grayscale, is tied up a little using multiple
The corresponding target common voltage of grayscale obtains preferred common voltage；
Step S5, common voltage is adjusted to the preferred common voltage and second of pre- place is carried out to liquid crystal display device
Reason；
Step S6, choosing multiple one tied up in a grayscale other than selecting grayscale is to adjust grayscale eventually, fills liquid crystal display
Display third detection picture corresponding with grayscale is adjusted eventually is set, the corresponding voltage group of tying up of tune grayscale eventually is adjusted until third
It detects the cross-talk parameters in picture everywhere and is respectively less than or is equal to preset second threshold；
Step S7, step S6 is repeated, until each grayscale of tying up other than selecting grayscale completes step S6.
The first detection picture corresponding with selected grayscale include first area and be centered around on the outside of first area the
Two regions, the grayscale of first area are preset highest grayscale, and the grayscale of second area is the selected grayscale；
The second detection picture corresponding with initial adjustment grayscale includes third region and is centered around the of third areas outside
Four regions, the grayscale in third region are preset highest grayscale, and the grayscale of the fourth region is the initial adjustment grayscale；
It is described to include the 5th region and be centered around the of the 5th areas outside with grayscale corresponding third detection picture is adjusted eventually
Six regions, the grayscale in the 5th region are that this adjusts grayscale eventually, and the grayscale in the 6th region is preset highest grayscale.
The step S2 is specifically included:
Step S21, choosing one and tying up a grayscale is selected grayscale, and liquid crystal display device is made to show corresponding with selected grayscale the
One detection picture；
Step S22, it keeps common voltage constant, a voltage group of tying up corresponding with selected grayscale is adjusted the first inspection
Surveying the cross-talk parameters of picture everywhere reduces and keeps the cross-talk parameters in second area everywhere consistent；
Step S23, being adjusted to common voltage reduces the cross-talk parameters of the first detection picture everywhere, until the first inspection
It surveys the cross-talk parameters in picture everywhere to be respectively less than or be equal to preset first threshold, using common voltage at this time as selected grayscale
Corresponding target common voltage.
Each corresponding voltage group of tying up of a grayscale of tying up includes positive polarity voltage and reverse voltage；
The voltage group of tying up corresponding with selected grayscale is adjusted the first detection picture everywhere in the step S22
The concrete mode that cross-talk parameters reduce are as follows: along the equidirectional or opposite direction positive polarity tied up in a voltage group corresponding to selected grayscale
Voltage and reverse voltage, which are adjusted, reduces the cross-talk parameters of the first detection picture everywhere；
A voltage group of tying up corresponding to tune grayscale eventually is adjusted until in third detection picture everywhere in the step S6
Cross-talk parameters be respectively less than or equal to preset second threshold concrete mode are as follows: along equidirectional or opposite direction to eventually adjust grayscale pair
The positive polarity voltage tied up in a voltage group and reverse voltage answered are adjusted the crosstalk ginseng detected third in picture everywhere
Number reduces, until the cross-talk parameters in third detection picture everywhere are respectively less than or are equal to preset second threshold.
The shape of first area, third region and the 5th region is rectangle；Second area, the fourth region and the 6th region
Shape be rectangle frame.
The first threshold and second threshold are 0.
The specific of preferred common voltage is obtained using multiple corresponding target common voltages of a grayscale of tying up in the step S4
Mode is to be averaged to obtain preferred common voltage to multiple corresponding target common voltages of a grayscale of tying up.
Carrying out pretreated detailed process for the first time to liquid crystal display device in the step S1 includes:
Step S11, the property parameters according to the liquid crystal display device are determined corresponding most with preset highest grayscale
High driving voltage；
Step S12, common voltage is adjusted until when liquid crystal display device shows the picture of preset highest grayscale
Flicker value be minimum value；
Step S13, the brightness and the preset most low ash of display when liquid crystal display device shows preset highest grayscale are measured
Brightness when rank, brightness when showing preset highest grayscale according to liquid crystal display device, show it is bright when preset minimum gray scale
Degree and preset target gamma value, which calculate, ties up the corresponding object brightness of a grayscale with multiple respectively；
Step S14, it is adjusted to the multiple corresponding multiple voltage groups of tying up of a grayscale of tying up, so that liquid crystal display device
Show that each brightness when tying up grayscale is that this ties up the corresponding object brightness of a grayscale；
Step S15, it is adjusted to the multiple corresponding multiple voltage groups of tying up of a grayscale of tying up, so that liquid crystal display device
Show that flicker value when each picture for tying up a grayscale is minimum value.
Carrying out second of pretreated detailed process to liquid crystal display device in the step S5 is to tie up an ash to multiple
The corresponding multiple voltage groups of tying up of rank are adjusted, so that liquid crystal display device shows that each brightness when tying up grayscale is tied up for this
The corresponding object brightness of point grayscale.
The selected grayscale is less than preset maximum gray and is greater than preset minimum gray.
Beneficial effects of the present invention: the adjustment method of liquid crystal display device of the invention shows selected in liquid crystal display device
A voltage group is tied up and common voltage is adjusted so that detecting the cross-talk parameters of picture to corresponding when the corresponding detection picture of grayscale
It meets the requirements, to obtain the selected corresponding target common voltage of grayscale, and shows that other tie up a grayscale in liquid crystal display device
Common voltage is adjusted when corresponding detection picture so that the cross-talk parameters for detecting picture are met the requirements, to obtain other
The corresponding target common voltage of a grayscale is tied up, and then obtains preferred common voltage and adjusts common voltage to the preferred common electrical
Pressure then adjusts a corresponding voltage group of tying up when liquid crystal display device shows that other tie up the corresponding detection picture of a grayscale
It is whole that the cross-talk parameters for detecting picture are met the requirements, it can be effectively improved the crosstalk phenomenon of liquid crystal display device, improve liquid crystal
The display effect of display device.
Detailed description of the invention
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
In attached drawing,
Fig. 1 is that existing liquid crystal display device crosstalk phenomenon occurs in grey bottom white edge picture when using column inversion driving
Schematic diagram；
Fig. 2 is the flow chart of the adjustment method of liquid crystal display device of the invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention
Example and its attached drawing are described in detail.
Referring to Fig. 2, the present invention provides a kind of adjustment method of liquid crystal display device, include the following steps:
Step S1, liquid crystal display device is provided.The liquid crystal display device access common voltage and be stored with respectively with it is more
It is a it is preset tie up a grayscale it is corresponding it is multiple tie up a voltage group, to liquid crystal display device carry out first time pretreatment.
Specifically, each corresponding voltage group of tying up of a grayscale of tying up includes positive polarity voltage and reverse voltage.
Specifically, carrying out pretreated detailed process for the first time to liquid crystal display device in the step S1 includes:
Step S11, the property parameters according to the liquid crystal display device are determined corresponding most with preset highest grayscale
High driving voltage.
Specifically, in the step S11, the property parameters include the penetrance of the liquid crystal display panel of liquid crystal display device
Deng.
Specifically, preset highest grayscale is 255 grayscale.
Specifically, the highest driving voltage that the step S11 is determined includes highest positive polarity voltage and highest negative polarity
Voltage.
Step S12, common voltage is adjusted until when liquid crystal display device shows the picture of preset highest grayscale
Flicker value be minimum value, initial common voltage is determined with this.
Step S13, the brightness and the preset most low ash of display when liquid crystal display device shows preset highest grayscale are measured
Brightness when rank, brightness when showing preset highest grayscale according to liquid crystal display device, show it is bright when preset minimum gray scale
Degree and preset target gamma value, which calculate, ties up the corresponding object brightness of a grayscale with multiple respectively.
Specifically, preset minimum gray scale is 0 grayscale.
Preferably, the target gamma value is 2.2.
Step S14, it is adjusted to the multiple corresponding multiple voltage groups of tying up of a grayscale of tying up, so that liquid crystal display device
Show that each brightness when tying up grayscale is that this ties up the corresponding object brightness of a grayscale.
Specifically, in the step S14, to it is each tie up the corresponding positive polarity voltage tied up in a voltage group of a grayscale and
Reverse voltage carries out opposite direction adjustment, it is ensured that liquid crystal display device shows that each brightness when tying up grayscale is that this ties up a grayscale
Corresponding object brightness.
Step S15, it is adjusted to the multiple corresponding multiple voltage groups of tying up of a grayscale of tying up, so that liquid crystal display device
Show that flicker value when each picture for tying up a grayscale is minimum value.
Specifically, in the step S15, to it is each tie up the corresponding positive polarity voltage tied up in a voltage group of a grayscale and
Reverse voltage carries out equidirectional adjustment, it is ensured that obtains liquid crystal display device and shows that flicker value when each picture for tying up a grayscale is
Brightness is constant while minimum value.
Further, carrying out pretreated detailed process for the first time to liquid crystal display device in the step S1 further includes step
Rapid S16 calculates the corresponding driving voltage of minimum gray according to the voltage of tying up for tying up a grayscale closest to preset minimum gray,
To keep contrast highest.
Step S2, choosing multiple one tied up in a grayscale is selected grayscale, shows that liquid crystal display device and selected ash
The corresponding first detection picture of rank.A voltage group is tied up and common voltage is adjusted control liquid crystal to corresponding with selected grayscale
Showing device is adjusted to the first detection picture until the cross-talk parameters in the first detection picture everywhere are respectively less than or are equal to default
First threshold, using common voltage at this time as the corresponding target common voltage of selected grayscale.
Specifically, the first detection picture corresponding with selected grayscale includes first area and is centered around outside first area
The second area of side, the grayscale of first area are preset highest grayscale, and the grayscale of second area is the selected grayscale.It is preferred that
Ground, the shape of first area are rectangle, and the shape of second area is rectangle frame.
Specifically, the step S2 is specifically included:
Step S21, choosing one and tying up a grayscale is selected grayscale, and liquid crystal display device is made to show corresponding with selected grayscale the
One detection picture.
Step S22, it keeps common voltage constant, a voltage group of tying up corresponding with selected grayscale is adjusted the first inspection
Surveying the cross-talk parameters of picture everywhere reduces and keeps the cross-talk parameters in second area everywhere consistent.
Specifically, control liquid crystal display is adjusted to a voltage group of tying up corresponding with selected grayscale in the step S22
Device is adjusted the concrete mode for reducing the cross-talk parameters of the first detection picture everywhere to the first detection picture are as follows: along Tongfang
To or the opposite direction positive polarity voltage tied up in a voltage group corresponding to selected grayscale and reverse voltage be adjusted first
Detecting the cross-talk parameters of picture everywhere reduces.
Further, the step S22 is in practical operation, first corresponding to selected grayscale ties up a voltage group along equidirectional
In positive polarity voltage and reverse voltage be adjusted, determine whether the first detection picture cross-talk parameters everywhere reduce, if
It is that continuation is adjusted along the equidirectional positive polarity voltage tied up in a voltage group corresponding to selected grayscale and reverse voltage,
If otherwise the positive polarity voltage tied up in a voltage group corresponding to selected grayscale and reverse voltage are adjusted in reverse direction.
Step S23, being adjusted to common voltage reduces the cross-talk parameters of the first detection picture everywhere, until the first inspection
It surveys the cross-talk parameters in picture everywhere to be respectively less than or be equal to preset first threshold, using common voltage at this time as selected grayscale
Corresponding target common voltage.
Specifically, the step S23 first reduces common voltage in practical operation, judges in the first detection picture everywhere
Cross-talk parameters whether reduce, if so, continue reduce common voltage, if otherwise increasing common voltage, until first detection picture
Cross-talk parameters in face everywhere are respectively less than or are equal to preset first threshold.
Preferably, the first threshold is 0.
Specifically, the selected grayscale is less than preset maximum gray and is greater than preset minimum gray.
Specifically, the cross-talk parameters are just noticeable difference (JND) or other can characterize the parameter of degree of crosstalk.
Step S3, choosing multiple one tied up in a grayscale other than selecting grayscale is initial adjustment grayscale, fills liquid crystal display
Display the second detection picture corresponding with initial adjustment grayscale is set, control liquid crystal display device is adjusted to common voltage and is examined to second
Picture is surveyed to be adjusted until the cross-talk parameters in the second detection picture everywhere are respectively less than or are equal to first threshold, by public affairs at this time
Common voltage is as the corresponding target common voltage of initial adjustment grayscale.
Specifically, the second detection picture corresponding with initial adjustment grayscale includes third region and is centered around outside third region
The fourth region of side, the grayscale in third region are preset highest grayscale, and the grayscale of the fourth region is the initial adjustment grayscale.It is preferred that
Ground, the shape in third region are rectangle, and the shape of the fourth region is rectangle frame.
Specifically, the step S3 first reduces common voltage in practical operation, judges in the second detection picture everywhere
Whether cross-talk parameters reduce, if so, continuing to reduce common voltage, if otherwise increasing common voltage, until the second detection picture
In cross-talk parameters everywhere be respectively less than or be equal to first threshold.
Step S4, step S3 is repeated, until acquisition is each to tie up the corresponding target common voltage of a grayscale, is tied up a little using multiple
The corresponding target common voltage of grayscale obtains preferred common voltage.
Specifically, preferred common voltage is obtained using multiple corresponding target common voltages of a grayscale of tying up in the step S4
Concrete mode be to be averaged to obtain preferred common voltage to multiple corresponding target common voltages of a grayscale of tying up.
Step S5, common voltage is adjusted to the preferred common voltage and second of pre- place is carried out to liquid crystal display device
Reason.
Specifically, in the step S5 to liquid crystal display device carry out second pretreated detailed process be to it is multiple
It ties up the corresponding multiple voltage groups of tying up of a grayscale to be adjusted, so that liquid crystal display device shows each brightness when tying up grayscale
The corresponding object brightness of a grayscale is tied up for this.
Step S6, choosing multiple one tied up in a grayscale other than selecting grayscale is to adjust grayscale eventually, fills liquid crystal display
Display third detection picture corresponding with grayscale is adjusted eventually is set, control liquid crystal is adjusted to the corresponding voltage group of tying up of tune grayscale eventually
Display device is adjusted to third detection picture until the cross-talk parameters in third detection picture everywhere are respectively less than or are equal to pre-
If second threshold.
Specifically, the third detection picture corresponding with grayscale is adjusted eventually includes the 5th region and is centered around outside the 5th region
6th region of side, the grayscale in the 5th region are that this adjusts grayscale eventually, and the grayscale in the 6th region is preset highest grayscale.It is preferred that
Ground, the shape in the 5th region are rectangle, and the shape in the 6th region is rectangle frame.
Specifically, a voltage group of tying up corresponding to tune grayscale eventually is adjusted until third detects picture in the step S6
In cross-talk parameters everywhere be respectively less than or equal to preset second threshold concrete mode are as follows: along equidirectional or opposite direction to whole tune
The corresponding positive polarity voltage tied up in a voltage group of grayscale and reverse voltage, which are adjusted, detects third in picture everywhere
Cross-talk parameters reduce, until the cross-talk parameters in third detection picture everywhere are respectively less than or are equal to preset second threshold.
Specifically, the step S6 is in practical operation, and first to tune eventually, grayscale is corresponding ties up in a voltage group along equidirectional
Positive polarity voltage and reverse voltage be adjusted, determine whether third detection picture cross-talk parameters everywhere reduce, if
Then continue to be adjusted the corresponding positive polarity voltage tied up in a voltage group of tune grayscale and reverse voltage eventually along equidirectional, if
Otherwise the corresponding positive polarity voltage tied up in a voltage group of tune grayscale and reverse voltage eventually are adjusted in reverse direction, until
Third detects the cross-talk parameters in picture everywhere and is respectively less than or is equal to preset second threshold.
Preferably, the second threshold is 0.
Step S7, step S6 is repeated, until each grayscale of tying up other than selecting grayscale completes step S6.
Further, due to being easy the flashing so that liquid crystal display device by way of changing common voltage and reducing crosstalk
Value increases, and therefore, can first measure in the present invention corresponding between the flicker value of liquid crystal display device and the voltage value of common voltage
Relationship is adjusted preferred common voltage in conjunction with actual flicker value specification, or optimizes and set to liquid crystal display device
Meter reduces its flicker value to the sensibility of common voltage, thus reduce adjustment method using liquid crystal display device of the invention to
The flicker value bring of liquid crystal display device influences.
It should be noted that the adjustment method of liquid crystal display device of the invention shows selected grayscale in liquid crystal display device
A voltage group is tied up and common voltage is adjusted so that detect the cross-talk parameters satisfaction of picture to corresponding when corresponding detection picture
It is required that obtain the selected corresponding target common voltage of grayscale, and it is corresponding in liquid crystal display device to show that other tie up a grayscale
Detection picture when common voltage is adjusted so that the cross-talk parameters for detecting picture are met the requirements, tied up a little to obtain other
The corresponding target common voltage of grayscale, and then obtain preferred common voltage and adjust common voltage to the preferred common voltage,
Then a corresponding voltage group of tying up is adjusted when liquid crystal display device shows that other tie up the corresponding detection picture of a grayscale
So that the cross-talk parameters of detection picture are met the requirements, finally enable to show it is each when tying up the corresponding detection picture of a grayscale,
Detect the cross-talk parameters of picture everywhere reduces with trend, can finally be reduced to 0, can be effectively improved the crosstalk of liquid crystal display device
Phenomenon improves the display effect of liquid crystal display device.
In conclusion the adjustment method of liquid crystal display device of the invention shows that selected grayscale is corresponding in liquid crystal display device
A voltage group is tied up and common voltage is adjusted so that the cross-talk parameters for detecting picture are met the requirements to corresponding when detecting picture,
To obtain the selected corresponding target common voltage of grayscale, and show that other tie up the corresponding detection of a grayscale in liquid crystal display device
Common voltage is adjusted when picture so that the cross-talk parameters for detecting picture are met the requirements, so that obtaining other ties up a grayscale pair
The target common voltage answered, and then obtain preferred common voltage and adjust common voltage to the preferred common voltage, then exist
Liquid crystal display device shows and is adjusted a corresponding voltage group of tying up so that examining when other tie up a grayscale corresponding detection picture
The cross-talk parameters for surveying picture are met the requirements, and can be effectively improved the crosstalk phenomenon of liquid crystal display device, improve liquid crystal display device
Display effect.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the claims in the present invention
Protection scope.
Claims (10)
1. a kind of adjustment method of liquid crystal display device, which comprises the steps of:
Step S1, liquid crystal display device is provided；The liquid crystal display device access common voltage and be stored with respectively with it is multiple pre-
If tie up that a grayscale is corresponding multiple to tie up a voltage group；First time pretreatment is carried out to liquid crystal display device；
Step S2, choosing multiple one tied up in a grayscale is selected grayscale, shows that liquid crystal display device and selected grayscale pair
The the first detection picture answered；A voltage group is tied up and common voltage is adjusted until the first detection picture to corresponding with selected grayscale
Cross-talk parameters in face everywhere are respectively less than or are equal to preset first threshold, corresponding using common voltage at this time as selected grayscale
Target common voltage；
Step S3, choosing multiple one tied up in a grayscale other than selecting grayscale is initial adjustment grayscale, keeps liquid crystal display device aobvious
Show the second detection picture corresponding with initial adjustment grayscale, the crosstalk until in the second detection picture everywhere is adjusted to common voltage
Parameter is respectively less than or is equal to first threshold, using common voltage at this time as the corresponding target common voltage of initial adjustment grayscale；
Step S4, step S3 is repeated, until acquisition is each to tie up the corresponding target common voltage of a grayscale, ties up a grayscale using multiple
Corresponding target common voltage obtains preferred common voltage；
Step S5, it is adjusted to the preferred common voltage by common voltage and carries out second to liquid crystal display device to pre-process；
Step S6, choosing multiple one tied up in a grayscale other than selecting grayscale is to adjust grayscale eventually, keeps liquid crystal display device aobvious
Show third detection picture corresponding with grayscale is adjusted eventually, a voltage group of tying up corresponding to tune grayscale eventually is adjusted until third detects
Cross-talk parameters in picture everywhere are respectively less than or are equal to preset second threshold；
Step S7, step S6 is repeated, until each grayscale of tying up other than selecting grayscale completes step S6.
2. the adjustment method of liquid crystal display device as described in claim 1, which is characterized in that described corresponding with selected grayscale
First detects the second area that picture includes first area and is centered around on the outside of first area, and the grayscale of first area is preset
Highest grayscale, the grayscale of second area are the selected grayscale；
The second detection picture corresponding with initial adjustment grayscale includes third region and the 4th area for being centered around third areas outside
Domain, the grayscale in third region are preset highest grayscale, and the grayscale of the fourth region is the initial adjustment grayscale；
The third detection picture corresponding with grayscale is adjusted eventually includes the 5th region and the 6th area for being centered around the 5th areas outside
Domain, the grayscale in the 5th region are that this adjusts grayscale eventually, and the grayscale in the 6th region is preset highest grayscale.
3. the adjustment method of liquid crystal display device as claimed in claim 2, which is characterized in that the step S2 is specifically included:
Step S21, choosing one and tying up a grayscale is selected grayscale, and liquid crystal display device is made to show the first inspection corresponding with selected grayscale
Survey picture；
Step S22, it keeps common voltage constant, a voltage group of tying up corresponding with selected grayscale is adjusted the first detection picture
The cross-talk parameters of face everywhere reduce and keep the cross-talk parameters in second area everywhere consistent；
Step S23, being adjusted to common voltage reduces the cross-talk parameters of the first detection picture everywhere, until the first detection picture
Cross-talk parameters in face everywhere are respectively less than or are equal to preset first threshold, corresponding using common voltage at this time as selected grayscale
Target common voltage.
4. the adjustment method of liquid crystal display device as claimed in claim 3, which is characterized in that each to tie up that a grayscale is corresponding to tie up
Point voltage group includes positive polarity voltage and reverse voltage；
A voltage group of tying up corresponding with selected grayscale is adjusted the first detection picture crosstalk everywhere in the step S22
The concrete mode that parameter reduces are as follows: along the equidirectional or opposite direction positive polarity voltage tied up in a voltage group corresponding to selected grayscale
And reverse voltage is adjusted the cross-talk parameters reduction by the first detection picture everywhere；
A voltage group of tying up corresponding to tune grayscale eventually is adjusted the string until in third detection picture everywhere in the step S6
Disturb parameter be respectively less than or equal to preset second threshold concrete mode are as follows: along equidirectional or opposite direction to eventually adjust grayscale it is corresponding
It ties up positive polarity voltage and reverse voltage in a voltage group and is adjusted the cross-talk parameters drop detected third in picture everywhere
It is low, until the cross-talk parameters in third detection picture everywhere are respectively less than or are equal to preset second threshold.
5. the adjustment method of liquid crystal display device as claimed in claim 2, which is characterized in that first area, third region and
The shape in the 5th region is rectangle；The shape of second area, the fourth region and the 6th region is rectangle frame.
6. the adjustment method of liquid crystal display device as described in claim 1, which is characterized in that the first threshold and the second threshold
Value is 0.
7. the adjustment method of liquid crystal display device as described in claim 1, which is characterized in that using multiple in the step S4
Tying up the concrete mode that the corresponding target common voltage of a grayscale obtains preferred common voltage is, ties up the corresponding mesh of a grayscale to multiple
Mark common voltage is averaged to obtain preferred common voltage.
8. the adjustment method of liquid crystal display device as described in claim 1, which is characterized in that liquid crystal in the step S1
Showing device carries out pretreated detailed process for the first time
Step S11, the property parameters according to the liquid crystal display device determine that highest corresponding with preset highest grayscale is driven
Dynamic voltage；
Step S12, sudden strain of a muscle when liquid crystal display device shows the picture of preset highest grayscale is adjusted to common voltage
Bright value is minimum value；
Step S13, brightness when measurement liquid crystal display device shows preset highest grayscale and when showing preset minimum gray scale
Brightness, brightness when showing preset highest grayscale according to liquid crystal display device, when showing preset minimum gray scale brightness and
Preset target gamma value, which calculates, ties up the corresponding object brightness of a grayscale with multiple respectively；
Step S14, it is adjusted to the multiple corresponding multiple voltage groups of tying up of a grayscale of tying up, so that liquid crystal display device is shown
Each brightness when tying up grayscale is that this ties up the corresponding object brightness of a grayscale；
Step S15, it is adjusted to the multiple corresponding multiple voltage groups of tying up of a grayscale of tying up, so that liquid crystal display device is shown
Flicker value when each picture for tying up a grayscale is minimum value.
9. the adjustment method of liquid crystal display device as claimed in claim 8, which is characterized in that liquid crystal in the step S5
It is to adjust to the multiple corresponding multiple voltage groups of tying up of a grayscale of tying up that showing device, which carries out second pretreated detailed process,
It is whole, so that liquid crystal display device shows that each brightness when tying up grayscale is that this ties up the corresponding object brightness of a grayscale.
10. the adjustment method of liquid crystal display device as described in claim 1, which is characterized in that the selected grayscale is less than pre-
If maximum gray and be greater than preset minimum gray.
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