CN105206236B - A kind of driving method, device and liquid crystal display - Google Patents
A kind of driving method, device and liquid crystal display Download PDFInfo
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- CN105206236B CN105206236B CN201510648857.9A CN201510648857A CN105206236B CN 105206236 B CN105206236 B CN 105206236B CN 201510648857 A CN201510648857 A CN 201510648857A CN 105206236 B CN105206236 B CN 105206236B
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Abstract
This application discloses a kind of driving method, device and liquid crystal displays, wherein the driving method includes：Obtain two groups of default Gamma voltages of display panel, described two groups default Gamma voltages include that first farmland sub-pixel corresponds to first group of Gamma voltage and second farmland sub-pixel needed for different grayscale and corresponds to second group of Gamma voltage needed for different grayscale；The setting grayscale of the pixel is obtained, and the first Gamma voltage needed for determining the setting grayscale as first group of Gamma voltage, the 2nd Gamma voltage needed for determining the setting grayscale as second group of Gamma voltage；Apply the first Gamma voltage to the first farmland sub-pixel of the pixel, applies the 2nd Gamma voltage to the second farmland sub-pixel of the pixel, so that the pixel shows the setting grayscale.There is the problem of H Line Mura by the above-mentioned means, can be avoided.
Description
Technical field
This application involves field of display technology, more particularly to a kind of driving method, device and liquid crystal display.
Background technique
Currently, the problem of in order to avoid being easy to produce colour cast under different perspectives, usually set double for liquid crystal display
Farmland (English：Domain) structure.Each pixel of double farmland, that is, liquid crystal displays includes two different regions of liquid crystal aligning.It is double
The liquid crystal display of domain structure because liquid crystal molecule self-compensating so that viewer will not see when different direction is watched
To apparent color change.
However, it has been investigated that, since there are certain errors for the allocating process of liquid crystal display, it is easy to cause liquid crystal
Show that two farmlands in the pixel unit of device are different from alignment direction angle.In this way, two farmlands of the pixel unit exist in illuminated state
Generated grayscale is inconsistent under same drive voltage, i.e., its luminance is inconsistent, and viewer just can be appreciated that the bright row of a row is opposite
Darker situation, i.e. transverse direction Mura (English：H Line Mura, Mura, that is, brightness irregularities).
Summary of the invention
The application provides a kind of driving method, device and liquid crystal display, can be avoided and asking for H Line Mura occurs
Topic.
The application first aspect provides a kind of driving method, including：Driving device is generated by the measurement data of display panel
The first voltage penetrance curve of first farmland sub-pixel of the pixel of the display panel and the second electricity of the second farmland sub-pixel
Press penetrance curve；Wherein, first farmland sub-pixel is different with the liquid crystal aligning of second farmland sub-pixel；First farmland
The pixel electrode in pixel electrode and second farmland sub-pixel in sub-pixel insulate；N the default of main grayscale are obtained to penetrate
Rate determines that first farmland sub-pixel respectively corresponds the n the default of main grayscale and wears by the first voltage penetrance curve
First Gamma voltage needed for saturating rate, determines that second farmland sub-pixel respectively corresponds by the second voltage penetrance curve
2nd Gamma voltage needed for the default penetrance of the n main grayscale；Institute is formed by the first Gamma voltage of the determination
First group of Gamma voltage is stated, second group of Gamma voltage, the n are formed by the 2nd Gamma voltage of the determination
For the arbitrary integer between 2 to 22；Obtain two groups of default gamma Gamma voltages of display panel；Obtain the described of the pixel
The setting grayscale of first farmland sub-pixel and the setting grayscale of second farmland sub-pixel, by the setting ash of first farmland sub-pixel
Rank and and second farmland sub-pixel setting grayscale corresponding n main grayscale are compared respectively, find out with
The immediate main grayscale of the setting grayscale of first farmland sub-pixel and second farmland sub-pixel setting grayscale are immediate
Main grayscale, according to Gamma voltage needed for the immediate main grayscale and the setting grayscale and the immediate master
The grayscale difference of grayscale, and determined first needed for first farmland sub-pixel setting grayscale as first group of Gamma voltage
Gamma voltage, the 2nd Gamma electricity needed for determining second farmland sub-pixel setting grayscale as second group of Gamma voltage
Pressure；Apply the first Gamma voltage to the first farmland sub-pixel of the pixel, applies to the second farmland sub-pixel of the pixel
The 2nd Gamma voltage, so that the pixel shows the setting grayscale.
Wherein, the display panel types are IPS or FFS type.
The application second aspect provides a kind of driving device, for driving display panel, each picture of the display panel
Element includes that liquid crystal aligning different the first farmland sub-pixel and the second farmland sub-pixel, the driving device include：Generation module is used for
First voltage penetrance curve and the institute of the first farmland sub-pixel of the display panel are generated by the measurement data of display panel
State the second voltage penetrance curve of the second farmland sub-pixel, first group of Gamma voltage is by measuring the of the display panel
The voltage penetration rate curve V-T Curve of one farmland sub-pixel and determination, second group of Gamma voltage is by measuring the display
The voltage penetration rate curve of second farmland sub-pixel of panel and determination；Module is obtained, for obtaining the pre- of the n main grayscale
If penetrance, determine that first farmland sub-pixel respectively corresponds the n main grayscale by the first voltage penetrance curve
First Gamma voltage needed for default penetrance determines second farmland sub-pixel point by the second voltage penetrance curve
2nd Gamma voltage needed for not corresponding to the default penetrance of the n main grayscale；Comprising modules, for by the determination
First Gamma voltage forms first group of Gamma voltage, forms described the by the 2nd Gamma voltage of the determination
Two groups of Gamma voltages, wherein the n is the arbitrary integer between 2 to 22；Module is obtained, for obtaining two groups of display panel
Default gamma Gamma voltage；Determining module, for obtaining the setting grayscale of first farmland sub-pixel of the pixel and described
The setting grayscale of second farmland sub-pixel, by the setting grayscale of first farmland sub-pixel and and second farmland sub-pixel setting
The corresponding n main grayscale are compared grayscale respectively, are found out with the setting grayscale of first farmland sub-pixel most
Close main grayscale and second farmland sub-pixel set the immediate main grayscale of grayscale, according to the immediate main grayscale
The grayscale difference of required Gamma voltage and the setting grayscale and the immediate main grayscale, and by described first group
First Gamma voltage needed for Gamma voltage determines first farmland sub-pixel setting grayscale, by second group of Gamma electricity
Press the 2nd Gamma voltage needed for determining second farmland sub-pixel setting grayscale；Apply module, for the of the pixel
One farmland sub-pixel applies the first Gamma voltage, applies the 2nd Gamma electricity to the second farmland sub-pixel of the pixel
Pressure, so that the pixel shows the setting grayscale.
The application third aspect provides a kind of liquid crystal display, described aobvious including display panel and above-mentioned driving device
Show that the pixel electrode in pixel electrode and second farmland sub-pixel in the first farmland sub-pixel in panel insulate, the driving
Device is for driving the display panel, to realize display.
Wherein, the type of the liquid crystal display is IPS or FFS type.
In above scheme, the pixel of display panel includes the first different farmland sub-pixel of liquid crystal aligning and the second farmland sub- picture
Element, and be preset with and respectively correspond the first farmland sub-pixel and the second farmland sub-pixel corresponds to two groups of Gamma voltages needed for cloth idol grayscale.
When driving the display panel, according to preset two groups of Gamma voltage, the first farmland sub-pixel and the second farmland of the pixel are obtained
When sub-pixel display setting grayscale respectively needed for the first Gamma voltage and the 2nd Gamma voltage, and to the first farmland of the pixel
Sub-pixel and the second farmland sub-pixel apply the first Gamma voltage and the 2nd Gamma voltage respectively, so that the first farmland of the pixel
Sub-pixel and the second farmland sub-pixel show setting grayscale, that is, guarantee that the first farmland sub-pixel of the pixel and the second farmland sub-pixel exist
Luminance when illuminated state is consistent, avoids and the problem of H Line Mura occurs.
Detailed description of the invention
Fig. 1 is the theoretical orientation schematic diagram of the one one of pixel of embodiment of double farmlands liquid crystal display；
Fig. 2 is the practical orientation schematic diagram of the one one of pixel of embodiment of double farmlands liquid crystal display；
Fig. 3 is the structural schematic diagram of one of pixel in one embodiment of the application liquid crystal display；
Fig. 4 is the flow chart of one embodiment of the application driving method；
Fig. 5 is the partial process view of another embodiment of the application driving method；
Fig. 6 is the schematic diagram of the voltage penetration rate curve of pixel in one embodiment of the application liquid crystal display；
Fig. 7 is the structural schematic diagram of one embodiment of the application driving device
Fig. 8 is the structural schematic diagram of one embodiment of the application liquid crystal display.
Specific embodiment
In being described below, for illustration and not for limitation, propose such as specific system structure, interface, technology it
The detail of class, so as to provide a thorough understanding of the present application.However, it will be clear to one skilled in the art that there is no these specific
The application also may be implemented in the other embodiment of details.In other situations, omit to well-known device, circuit with
And the detailed description of method, so as not to obscure the description of the present application with unnecessary details.
Firstly, first the mechanism of H Line Mura to be solved to the application is illustrated.
The alignment direction of liquid crystal display can have certain deviation.As shown in Figure 1, theoretically, it is desirable that liquid crystal display
Alignment direction A is 90 degree vertically, the angle between the pixel electrode on the first farmland 11 and the second farmland 12 of alignment direction A and pixel 10
α is 7 degree.As shown in Fig. 2, the alignment direction A ' offset of the liquid crystal display actually obtained is 89 in practical allocating process
Degree, the angle β between so then alignment direction A ' and the pixel electrode on the first farmland 11 are 6 degree between the pixel electrode on the second farmland 12
Angle theta be 8 degree.
It is tested, sets a series of alignment directions, make its 5~9 degree of angle between pixel electrode respectively, and obtain not
With the relationship of its pixel voltage and pixel luminance under angle.Above-mentioned relation is studied it is concluded that being：In identical pixel voltage
Under, its pixel luminance of the bigger correspondence of the angle is higher.Since the voltage that two farmlands of the pixel of available liquid crystal display apply is
It is identical, therefore in illuminated state, since the pixel electrode on two farmlands of pixel is different from the angle between alignment direction, driven in identical voltage
The dynamic lower two farmland grayscale generated are different, i.e., luminance is different, and then generates H Line Mura.
Based on the mechanism of production of above-mentioned H Line Mura, the application is directed to double farmland liquid crystal display structures and uses and driving
When pixel is shown, different gammas (English is applied respectively to its first farmland sub-pixel and the second farmland sub-pixel：Gamma) electric
Pressure, so that it is identical to can be realized display the angle difference of the first farmland sub-pixel and the second farmland sub-pixel even if between alignment direction
Grayscale show identical luminance, and then avoid H Line Mura.
Referring to Fig. 3, Fig. 3 is the structural schematic diagram of one of pixel in one embodiment of the application liquid crystal display.
In present embodiment, the display panel of liquid crystal display includes that (Fig. 3 only schematically shows one of pixel 30 to multiple pixels 30
Structure), each pixel 30 includes different the first farmland sub-pixel 31 and the second farmland sub-pixel 32 of LCD alignment.Specifically, should
First farmland sub-pixel 31 is equipped with pixel electrode a, and the second farmland sub-pixel 32 is equipped with pixel electrode b.When the display panel is driven,
Pixel electrode a and pixel electrode b is respectively formed the electric field of different directions, so that the first farmland sub-pixel 31 and the second farmland sub-pixel
32 LCD alignment is different.In present embodiment, pixel electrode a and pixel electrode b are by being set as different directions to realize
The electric field of different directions is formed when driving, but is not limited the application and realized only with pixel electrodes structure.
Wherein, to realize that the first farmland sub-pixel 31 can apply different voltages from the second farmland sub-pixel 32, first farmland
It insulate between the pixel electrode a of pixel 31 and the pixel electrode b of the second farmland sub-pixel 31.Its insulation mode can be used pixel electricity
Junction c between pole a and pixel electrode b is set as insulation system, i.e., as shown in Figure 3；Or other are by pixel electrode a and pixel
The mode that electrode b is dielectrically separated from, is not limited thereto.
With reference to Fig. 4, Fig. 4 is the flow chart of one embodiment of the application driving method.In present embodiment, this method
For driving the display panel of above-mentioned liquid crystal display, executed by driving device.This approach includes the following steps：
S41：Driving device obtains two groups of default Gamma voltages of display panel, wherein each picture of the display panel
Element includes different the first farmland sub-pixel and the second farmland sub-pixel of liquid crystal aligning, and described two groups default Gamma voltages include described
First farmland sub-pixel corresponds to first group of Gamma voltage and second farmland sub-pixel needed for different grayscale and corresponds to different ashes
Second group of Gamma voltage needed for rank.
It in advance will include the Gamma code (also referred to as Gamma code) of this two groups default Gamma voltage in present embodiment
It is written to memory such as Electrically Erasable Programmable Read-Only Memory (English：Electrically Erasable Programmable
Read-Only Memory, referred to as：EEPROM in), driving device reads Gamma code after powering on default to obtain this two groups
Gamma voltage.Wherein, this two groups default Gamma voltages are obtained by measuring the display panel in advance.For example, first group of Gamma
Voltage is (English by the voltage penetration rate curve for measuring the first farmland sub-pixel of the display panel：V-T Curve) and determine,
Second group of Gamma voltage is by measuring the voltage penetration rate curve of the second farmland sub-pixel of the display panel and determination.
Optionally, this two groups default Gamma voltages can show the part gray-scale institute in grey-scale range for liquid crystal display
The Gamma voltage needed, the part gray-scale are defined as main grayscale.For example, first group of Gamma voltage and second group of Gamma voltage
It include Gamma voltage needed for 14 main grayscale.
S42：Driving device obtains the setting grayscale of the pixel, and as first group of Gamma voltage determine described in set
Determine the first Gamma voltage needed for grayscale, is determined second needed for the setting grayscale as second group of Gamma voltage
Gamma voltage.
For example, driving device obtains each pixel by the image data of the input when liquid crystal display shows image
Set grayscale.The two groups of default Gamma voltages obtained according to the setting grayscale and S41 of each pixel, pass through digital analog converter
First Gamma voltage needed for determining the corresponding setting grayscale of the first farmland sub-pixel display of each pixel and the second farmland sub-pixel are aobvious
2nd Gamma voltage needed for showing corresponding setting grayscale.Specifically such as, first group of Gamma voltage and second group of Gamma voltage wrap
Gamma voltage needed for including several main grayscale.The setting grayscale is compared with main grayscale, is found out and the setting grayscale
Immediate main grayscale, according to this closest to Gamma voltage needed for main grayscale and the setting grayscale and the immediate master
The grayscale difference of grayscale, Gamma voltage needed for determining the setting grayscale.
S43：Driving device applies the first Gamma voltage to the first farmland sub-pixel of the pixel, to the pixel
The second farmland sub-pixel apply the 2nd Gamma voltage so that the pixel shows the setting grayscale.
For example, one of pixel sets grayscale as 121, driving device determines the according to two groups of default Gamma voltages
First Gamma voltage needed for one farmland sub-pixel shows grayscale 121 is 3.51v and the second farmland sub-pixel shows 121 institute of grayscale
The 2nd Gamma voltage needed is 3.16v.Driving device applies 3.51v electricity to the pixel electrode of the first farmland sub-pixel of the pixel
Pressure applies 3.16v voltage to the pixel electrode of the second farmland sub-pixel of the pixel.First farmland sub-pixel of the pixel and the second farmland
The pixel electrode of sub-pixel is respectively formed the electric field of different directions of an electric field after applying above-mentioned voltage from reference electrode, so that the picture
Liquid crystal aligning in the first farmland sub-pixel and the second farmland sub-pixel of element is different, and shows grayscale under different voltages electric field
121, i.e. the first farmland sub-pixel of the pixel and the luminance of the second farmland sub-pixel is consistent, and avoids and H Line Mura occurs
The problem of.
Optionally, this two groups of above-mentioned S41 default Gamma voltages may include Gamma voltage needed for n main grayscale.Please
It is the partial process view of another embodiment of the application driving method refering to Fig. 5, Fig. 5.The side of present embodiment based on shown in Fig. 4
Method, and before above-mentioned S41 step, it is further comprising the steps of：
S51：Driving device is generated the first of the first farmland sub-pixel of the display panel by the measurement data of display panel
The second voltage penetrance curve of voltage penetration rate curve and second farmland sub-pixel.
Voltage penetration rate curve is the different Camma voltages of corresponding sub-pixel and penetrating under the Gamma voltage
Relation curve between rate.For example, by applying different Gamma voltage to display panel, measurement is obtained under corresponding voltage
The penetrance of first farmland sub-pixel of the display panel and the penetrance of the second farmland sub-pixel.By the first farmland sub-pixel measured
Penetrance and corresponding Gamma voltage analog obtain first voltage penetrance curve V-T1, by the second farmland sub-pixel measured
Penetrance and corresponding Gamma voltage analog obtain second voltage penetrance curve V-T2, as shown in Figure 6.Wherein, above-mentioned to aobvious
Show that the measurement of panel can be executed by the driving device, or is executed by external measuring device and saved measurement data to driving
In the memory of device.
S52：Driving device obtains the default penetrance of the n main grayscale, true by the first voltage penetrance curve
First Gamma voltage needed for fixed first farmland sub-pixel respectively corresponds the default penetrance of the n main grayscale, by described
Second voltage penetrance curve determines needed for the default penetrance that second farmland sub-pixel respectively corresponds the n main grayscale
2nd Gamma voltage.
The n main grayscale have been preset, for example, 0,31,62,78,94 ..., 255 14 main grayscale in total.It is corresponding
Ground, each grayscale preset corresponding penetrance.After the default penetrance for determining the n main grayscale, penetrated from first voltage
Inquiry obtains the n default penetrances and corresponds to required Gamma voltage on rate curve V-T1, right respectively as the first farmland sub-pixel
It should the first Gamma voltage needed for n main grayscale；It is a default to obtain the n for inquiry from second voltage penetrance curve V-T2
Penetrance corresponds to required Gamma voltage, the 2nd Gamma needed for respectively corresponding the n main grayscale as the second farmland sub-pixel
Voltage.
As shown in fig. 6, can obtain it if the default penetrance of grayscale 255 is 4.00% by V-T1 and correspond to required voltage
For 5v, can obtain it to correspond to required voltage by V-T2 is 4v.If the default penetrance of grayscale 127 is set to 2.00%, by V-T1
It is 3.5v that it, which can be obtained, and correspond to required voltage, and can obtain it to correspond to required voltage by V-T2 is 2.9v.And so on carry out, obtain
The corresponding first Gamma voltage of the main grayscale of n and the 2nd Gamma voltage.
Wherein, above-mentioned n can be the arbitrary integer between 2 to 22, for example 2,14,22 etc..
S53：Driving device forms first group of Gamma voltage by the first Gamma voltage of the determination, by described true
Fixed the 2nd Gamma voltage forms second group of Gamma voltage.
For example, first group of Gamma voltage includes { G1=5.21V；G2=4.85V；G3=4.68V；G4=4.45V；G5=
4.02V；G6=3.61V；G7=3.55V；G8=3.4164V；G9=2.91V；G10=2.66V；G11=2.22V；G12=
1.97V；G13=1.23V；G14=0.54V } totally 14 the first Gamma voltage；
Second group of Gamma voltage includes { g1=4.42V；G2=4.11V；G3=3.93V；G4=3.81V；G5=
3.34V；G6=3.01V；G7=3.13V；G8=2.94V；G9=2.56V；G10=2.13V；G11=1.86V；G12=
1.30V；G13=0.92V；G14=0.42V } totally 14 the 2nd Gamma voltage.
Referring to Fig. 7, Fig. 7 is the structural schematic diagram of one embodiment of the application driving device.In present embodiment, the drive
Dynamic device 70 is used to drive the display panel in above-mentioned liquid crystal display, i.e. each pixel of the display panel includes liquid crystal aligning
Different the first farmland sub-pixels and the second farmland sub-pixel, can be as shown in Figure 3.The driving device 70 includes obtaining module 71, determining
Module 72 and application module 73.
Obtain two groups of default Gamma voltages that module 71 is used to obtain display panel, wherein described two groups default Gamma
Voltage includes that first farmland sub-pixel corresponds to first group of Gamma voltage needed for different grayscale and the second farmland sub- picture
Second group of Gamma voltage needed for the corresponding different grayscale of element.
Wherein, this two groups default Gamma voltages are obtained by measuring the display panel in advance.For example, first group of Gamma electricity
Pressure is by measuring the voltage penetration rate curve of the first farmland sub-pixel of the display panel and determination, second group of Gamma electricity
Pressure is by measuring the voltage penetration rate curve of the second farmland sub-pixel of the display panel and determination.
Determining module 72 is used to obtain the setting grayscale of the pixel, and described in being determined as first group of Gamma voltage
First Gamma voltage needed for setting grayscale, is determined second needed for the setting grayscale as second group of Gamma voltage
Gamma voltage.
Apply module 73 to be used to apply the first Gamma voltage to the first farmland sub-pixel of the pixel, to the picture
Second farmland sub-pixel of element applies the 2nd Gamma voltage, so that the pixel shows the setting grayscale.
Optionally, which may also include generation module, obtains module and comprising modules.
The generation module is used to be generated the of the first farmland sub-pixel of the display panel by the measurement data of display panel
The second voltage penetrance curve of one voltage penetration rate curve and second farmland sub-pixel；It is described for obtaining to obtain module
The default penetrance of n main grayscale, determines that first farmland sub-pixel respectively corresponds institute by the first voltage penetrance curve
First Gamma voltage needed for stating the default penetrance of n main grayscale determines described the by the second voltage penetrance curve
2nd Gamma voltage needed for two farmland sub-pixels respectively correspond the default penetrance of the n main grayscale；Comprising modules be used for by
First Gamma voltage of the determination forms first group of Gamma voltage, by the 2nd Gamma voltage of the determination
Form second group of Gamma voltage；Wherein, the n is the arbitrary integer between 2 to 22.
Specifically, each module of the driving device 70 is used to execute the correspondence step of above-mentioned driving method, therefore each module has
Body explanation please refers to above-mentioned corresponding description.
Referring to Fig. 8, Fig. 8 is the structural schematic diagram of one embodiment of the application liquid crystal display.In present embodiment.It should
Liquid crystal display 80 includes display panel 81 and driving device 82.The driving device 82 is used to drive the display panel 81, with
Realize display.Wherein, display panel 81 is the display panel in above embodiment, such as shown in Fig. 3.Driving device 82 is such as
Driving device in above embodiment, such as shown in Fig. 7.Based on simplified purpose, the phase of display panel 81 and driving device 82
Speak on somebody's behalf it is bright can be refering to above-mentioned associated description.
In a particular application, the type of above-mentioned liquid crystal display can be but not be limited to plane conversion (English：In-Plane
Switching, referred to as：IPS) or fringe field switching is (English：Fringe FieldSwitching, referred to as：FFS) type.
In above scheme, the pixel of display panel includes the first different farmland sub-pixel of liquid crystal aligning and the second farmland sub- picture
Element, and be preset with and respectively correspond the first farmland sub-pixel and the second farmland sub-pixel corresponds to two groups of Gamma voltages needed for cloth idol grayscale.
When driving the display panel, according to preset two groups of Gamma voltage, the first farmland sub-pixel and the second farmland of the pixel are obtained
When sub-pixel display setting grayscale respectively needed for the first Gamma voltage and the 2nd Gamma voltage, and to the first farmland of the pixel
Sub-pixel and the second farmland sub-pixel apply the first Gamma voltage and the 2nd Gamma voltage respectively, so that the first farmland of the pixel
Sub-pixel and the second farmland sub-pixel show setting grayscale, that is, guarantee that the first farmland sub-pixel of the pixel and the second farmland sub-pixel exist
Luminance when illuminated state is consistent, avoids and the problem of H Line Mura occurs.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (5)
1. a kind of driving method, which is characterized in that including：
Driving device is generated the first electricity of the first farmland sub-pixel of the pixel of the display panel by the measurement data of display panel
Press the second voltage penetrance curve of penetrance curve and the second farmland sub-pixel；Wherein, first farmland sub-pixel and described
The liquid crystal aligning of second farmland sub-pixel is different；In pixel electrode and second farmland sub-pixel in the sub-pixel of first farmland
Pixel electrode insulation；
The default penetrance for obtaining n main grayscale determines first farmland sub-pixel point by the first voltage penetrance curve
First Gamma voltage needed for not corresponding to the default penetrance of the n main grayscale, it is true by the second voltage penetrance curve
2nd Gamma voltage needed for fixed second farmland sub-pixel respectively corresponds the default penetrance of the n main grayscale；
First group of Gamma voltage is formed by the first Gamma voltage of the determination, by described the second of the determination
Gamma voltage forms second group of Gamma voltage, and the n is the arbitrary integer between 2 to 22；
Obtain two groups of default gamma Gamma voltages of display panel；
The setting grayscale of first farmland sub-pixel of the pixel and the setting grayscale of second farmland sub-pixel are obtained, by institute
State the first farmland sub-pixel setting grayscale and and second farmland sub-pixel setting grayscale distinguish the corresponding n master
Grayscale is compared, and is found out and the immediate main grayscale of the setting grayscale of first farmland sub-pixel and second farmland
The immediate main grayscale of pixel placement grayscale, according to Gamma voltage and the setting needed for the immediate main grayscale
The grayscale difference of grayscale and the immediate main grayscale, and the first farmland sub- picture is determined by first group of Gamma voltage
First Gamma voltage needed for element setting grayscale determines second farmland sub-pixel setting ash by second group of Gamma voltage
2nd Gamma voltage needed for rank；
Apply the first Gamma voltage to the first farmland sub-pixel of the pixel, is applied to the second farmland sub-pixel of the pixel
Add the 2nd Gamma voltage, so that the pixel shows the setting grayscale.
2. the method according to claim 1, wherein the display panel types are IPS or FFS type.
3. a kind of driving device, which is characterized in that for driving display panel, each pixel of the display panel includes liquid crystal
It is orientated different the first farmland sub-pixel and the second farmland sub-pixel, the pixel electrode in the sub-pixel of first farmland and second farmland
Pixel electrode insulation in sub-pixel；The driving device includes：
Generation module, the first voltage of the first farmland sub-pixel for generating the display panel by the measurement data of display panel
The second voltage penetrance curve of penetrance curve and second farmland sub-pixel, first group of Gamma voltage is by measuring
The voltage penetration rate curve V-T Curve of first farmland sub-pixel of the display panel and determination, second group of Gamma electricity
Pressure is by measuring the voltage penetration rate curve of the second farmland sub-pixel of the display panel and determination；
Module is obtained, for obtaining the default penetrance of the n main grayscale, institute is determined by the first voltage penetrance curve
The first Gamma voltage needed for the first farmland sub-pixel respectively corresponds the default penetrance of the n main grayscale is stated, by described second
Voltage penetration rate curve determines that second farmland sub-pixel respectively corresponds second needed for the default penetrance of the n main grayscale
Gamma voltage；
Comprising modules, for forming first group of Gamma voltage by the first Gamma voltage of the determination, by the determination
The 2nd Gamma voltage form second group of Gamma voltage, wherein the n is the arbitrary integer between 2 to 22；
Module is obtained, the default gamma Gamma voltage of two groups for obtaining display panel, wherein described two groups default Gamma electricity
Briquetting includes first farmland sub-pixel and corresponds to first group of Gamma voltage and second farmland sub-pixel needed for different grayscale
Second group of Gamma voltage needed for corresponding different grayscale；
Determining module, for obtaining the setting grayscale and second farmland sub-pixel of first farmland sub-pixel of the pixel
Set grayscale, by the setting grayscale of first farmland sub-pixel and and second farmland sub-pixel set grayscale it is right with it respectively
The n that answers main grayscale are compared, find out with the immediate main grayscale of the setting grayscale of first farmland sub-pixel with
And second farmland sub-pixel sets the immediate main grayscale of grayscale, according to the electricity of Gamma needed for the immediate main grayscale
The grayscale difference of pressure and the setting grayscale and the immediate main grayscale, and determined by first group of Gamma voltage
First Gamma voltage needed for first farmland sub-pixel sets grayscale, determines described second by second group of Gamma voltage
2nd Gamma voltage needed for farmland sub-pixel sets grayscale；
Apply module, for applying the first Gamma voltage to the first farmland sub-pixel of the pixel, to the of the pixel
Two farmland sub-pixels apply the 2nd Gamma voltage, so that the pixel shows the setting grayscale.
4. a kind of liquid crystal display, which is characterized in that described aobvious including display panel and driving device as claimed in claim 3
Show that the pixel electrode in pixel electrode and second farmland sub-pixel in the first farmland sub-pixel in panel insulate, the driving
Device is for driving the display panel, to realize display.
5. liquid crystal display according to claim 4, which is characterized in that the type of the liquid crystal display is IPS or FFS
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111899696B (en) * | 2019-05-05 | 2022-03-15 | 咸阳彩虹光电科技有限公司 | Pixel matrix driving method and device and display |
| CN112908256B (en) * | 2021-02-24 | 2022-02-22 | Tcl华星光电技术有限公司 | Display panel driving method, display device and driving device |
| CN116339020B (en) * | 2023-05-30 | 2023-10-17 | 武汉华星光电技术有限公司 | Display panel and display device |
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| CN1693945A (en) * | 2003-12-05 | 2005-11-09 | 夏普株式会社 | Liquid crystal display device |
| CN102460556A (en) * | 2009-06-11 | 2012-05-16 | 夏普株式会社 | Liquid crystal display device having a plurality of pixel electrodes |
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| CN104570430A (en) * | 2015-01-20 | 2015-04-29 | 青岛海信电器股份有限公司 | Display method and device applied to MVA (Multi-domain Vertical Alignment) wide-view-angle liquid crystal screen |
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| US7030846B2 (en) * | 2001-07-10 | 2006-04-18 | Samsung Electronics Co., Ltd. | Color correction liquid crystal display and method of driving same |
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| CN102460556A (en) * | 2009-06-11 | 2012-05-16 | 夏普株式会社 | Liquid crystal display device having a plurality of pixel electrodes |
| CN104376827A (en) * | 2014-11-26 | 2015-02-25 | 京东方科技集团股份有限公司 | Method and device for correcting liquid crystal display device |
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