CN106753427B - Liquid-crystal composition and its display device - Google Patents
Liquid-crystal composition and its display device Download PDFInfo
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- CN106753427B CN106753427B CN201510814476.3A CN201510814476A CN106753427B CN 106753427 B CN106753427 B CN 106753427B CN 201510814476 A CN201510814476 A CN 201510814476A CN 106753427 B CN106753427 B CN 106753427B
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Abstract
The present invention provides a kind of liquid-crystal composition, it includes one or more groups selected from compounds of formula I composition；One or more groups selected from compounds of formula II composition；One or more groups selected from compounds of formula III composition.Liquid-crystal composition of the invention has many advantages, such as suitable big dielectric anisotropic, fast-response, good to ultraviolet light (UV) and high-temperature stability, and liquid-crystal composition of the present invention is applicable in VA or IPS/FFS liquid crystal display device.
Description
Technical field
The present invention relates to a kind of suitable big dielectric anisotropic, fast-response, to ultraviolet light (UV) and high-temperature stability
Liquid-crystal composition, and the liquid crystal display device comprising the liquid-crystal composition.
Background technique
The various fields used for liquid crystal display device shown in information can be used for straight watching display and be also used for projection type to show
Device.
According to the type of display pattern be divided into PC (phase change, phase transformation), TN (twist nematic, distort to
Column), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled
Birefringence, electrically conerolled birefringence), OCB (optically compensated bend, optical compensation curved), IPS
The types such as (in-plane switching, coplanar transformation), VA (vertical alignment, vertical orientation).
Work uses positive dielectric anisotropic liquid crystal in the element of TN, STN mode, and works in the element use of VA mode
Positive dielectric anisotropic liquid crystal had both can be used in negative dielectric anisotropic liquid crystal, IPS mode, it is possible to use negative dielectric anisotropic liquid
It is brilliant.Wherein, IPS display pattern has good viewing angle characteristic and improved response time, is more and more used for multimedia
Using (such as mobile phone, tablet computer), or even it is used for TV and desktop monitor.
With the development of technology, requirement of the people to display device is being continuously improved, and such as tends to perfect real effect, low
Power consumption, fast-response, service life length etc., this also requires the continuous improving performance parameter of liquid crystal material from side.
Liquid crystal display device containing optical anisotropy liquid crystal material appropriate is capable of increasing contrast.Different liquid crystal
Requirement of the display pattern to optics anisotropic be it is different, optics anisotropic, which becomes smaller, can get wider visual angle.
Liquid crystal display device containing the small liquid crystal material of viscosity can shorten the response time.When the sound of liquid crystal display device
Between seasonable in short-term, it is applicable to animation and shows.
Containing the big liquid crystal material of dielectric anisotropic, the threshold voltage of liquid crystal can be reduced, further decreases consumption electric work
Rate, but the bigger dielectric the easier causes ion releasing by photo-thermal electrodisintegration, so as to cause resistivity reduction.
In addition, liquid-crystal composition is related to the service life of liquid crystal display device to the stability and thermal stability of ultraviolet light (UV)
Connection.The service life of liquid crystal display device can be extended to the stability and thermal stability of ultraviolet light (UV) by improving liquid-crystal composition.
The prior art cannot be considered in terms of the balancing performance of suitable big dielectric anisotropic, fast-response, anti-UV and high-temperature stable
Problem cannot meet various aspects index simultaneously.Therefore, in order to obtain stable liquid crystal display state, reach above-mentioned requirements, pass through
The optimization of liquid crystal material come suitable big dielectric anisotropic, fast-response are provided, to ultraviolet light (UV) and high-temperature stability, be this
The striving direction of field technical staff.
From the preparation angle of liquid crystal material, the properties of liquid crystal material check and balance influence, a certain performance
The promotion of index may make other performance change.Therefore, the preparation all suitable liquid crystal material of various aspects of performance often needs
Want creative work.
The object of the present invention is to provide a kind of suitable big dielectric anisotropic, fast-response, to ultraviolet light (UV) and high temperature
The liquid-crystal composition of stability.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of with suitable big dielectric anisotropic, fast-response, to ultraviolet
The liquid-crystal composition of line (UV) and high-temperature stability.
It is a further object of the present invention to provide a kind of liquid crystal display devices, and it includes have suitable big dielectric items different
Property, fast-response, to the liquid-crystal composition of ultraviolet light (UV) and high-temperature stability.
Technical solution: in order to achieve the above-mentioned object of the invention, the present invention provides a kind of liquid-crystal composition, the liquid-crystal composition
Include:
One or more groups selected from compounds of formula I composition
One or more groups selected from compounds of formula II composition
And
One or more groups selected from compounds of formula III composition
Wherein,
R1And R2Identical or different, each independently representing straight chained alkyl, carbon atom number that carbon atom number is 1-7 is 1-7's
Unbranched alkoxy；
R3And R4It is identical or different, each independently represent the straight chained alkyl that carbon atom number is 1-10；
R5And R6Identical or different, each independently representing straight chained alkyl, carbon atom number that carbon atom number is 1-7 is 1-7's
Unbranched alkoxy；Carbon atom number is the straight-chain alkenyl of 2-7；
M and n are identical or different, each independently represent 1 or 2；
RingIt is identical or different, it each independently represents
When n indicates 2, two ringsIt is identical or different, it each independently represents
In embodiments of the invention, the preferably described compounds of formula I is selected from the group being made of following compounds:
And
Wherein,
R1Indicate the unbranched alkoxy that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7；
R2Indicate that carbon atom number is the unbranched alkoxy of 1-7,
The preferably described compounds of formula II is selected from the group being made of following compounds:
Wherein,
R3And R4It is identical or different, the straight chained alkyl that carbon atom number is 2-8 is each independently represented,
The preferably described compounds of formula III is selected from the group being made of following compounds:
And
Wherein,
R5And R6Identical or different, each independently representing straight chained alkyl, carbon atom number that carbon atom number is 1-7 is 1-7's
Unbranched alkoxy；Carbon atom number is the straight-chain alkenyl of 2-7.
In embodiments of the invention, more preferably described compounds of formula I is selected from and is made of following compounds
Group:
And
The more preferably described compounds of formula II is selected from the group being made of following compounds:
And
The more preferably described compounds of formula III is selected from the group being made of following compounds:
And
In embodiments of the invention, the liquid-crystal composition also includes: the change of one or more general formula IV and/or V
Close object
Wherein,
R7、R8、R9And R10Identical or different, each independently representing carbon atom number is the straight chained alkyl of 1-7, carbon atom number
For the unbranched alkoxy of 1-7；
P indicates 1 or 2；
Z1Indicate singly-bound ,-CH2O-、-COO-。
In embodiments of the invention, preferably described compounds of formula IV is selected from and is made of following compounds
Group:
And
Wherein,
R7Indicate the unbranched alkoxy that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7；
R8Indicate that carbon atom number is the unbranched alkoxy of 1-7,
The compounds of formula V is selected from the group being made of following compounds:
Wherein,
R9Indicate the unbranched alkoxy that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7；
R10Indicate that carbon atom number is the unbranched alkoxy of 1-7.
In embodiments of the invention, more preferably described compounds of formula IV is selected from and is made of following compounds
Group:
And
The compounds of formula V is selected from the group being made of following compounds:
And
In embodiments of the invention, the liquid-crystal composition also includes: one or more are selected from the change of general formula VI
Close the group of object composition
Wherein,
R11And R12It is identical or different, each independently represent the straight chained alkyl that carbon atom number is 1-7, carbon atom number 1-7
Unbranched alkoxy；RingIt is identical or different, it each independently represents
Z2Indicate singly-bound ,-CH2O- or-COO-.
In embodiments of the invention, preferably described compounds of formula VI is selected from and is made of following compounds
Group:
And
Wherein,
R11And R12It is identical or different, each independently represent the straight chained alkyl that carbon atom number is 1-7.
In embodiments of the invention, more preferably described compounds of formula VI is selected from and is made of following compounds
Group:
And
Preferably, in liquid-crystal composition of the present invention, the weight percentage of compounds of formula I is 1-
25%；The weight percentage of compounds of formula II is 1-20%；The weight percentage of compounds of formula III is 30-
75%；The weight percentage of the compound of general formula IV and/or V is 10-50%；The weight percentage of compounds of formula VI
For 0-10%.
Preferably, in liquid-crystal composition of the present invention, the weight percentage of compounds of formula I is 1-
20%；The weight percentage of compounds of formula II is 1-15%；The weight percentage of compounds of formula III is 30-
70%；The weight percentage of the compound of general formula IV and/or V is 10-45%；The weight percentage of compounds of formula VI
For 0-10%.
Preferably, in liquid-crystal composition of the present invention, the weight percentage of compounds of formula I is 5-
15%；The weight percentage of compounds of formula II is 1-10%；The weight percentage of compounds of formula III is 40-
70%；The weight percentage of the compound of general formula IV and/or V is 15-43%；The weight percentage of compounds of formula VI
For 0-5%.
Preferably, in liquid-crystal composition of the present invention, the weight percentage of compounds of formula I is 5-
15%；The weight percentage of compounds of formula II is 1-10%；The weight percentage of compounds of formula III is 40-
70%；The weight percentage of compounds of formula IV is 9-19%；The weight percentage of compounds of formula V is 6-
24%；The weight percentage of compounds of formula VI is 1-5%.
Preferably, liquid-crystal composition of the present invention includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 4%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 7%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 35%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 7%；
Account for the compound IV-3-3 of the liquid-crystal composition total weight 5%；
Account for the compound IV-3-2 of the liquid-crystal composition total weight 5%；
Account for the compound IV-4-2 of the liquid-crystal composition total weight 4%；
Account for the compound V-1 of the liquid-crystal composition total weight 7%；
Account for the compound V-2 of the liquid-crystal composition total weight 7%；And
The compound V-8 of the liquid-crystal composition total weight 7% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 5%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 6%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 6%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 31%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 3%；
Account for the compound IV-3-3 of the liquid-crystal composition total weight 6%；
Account for the compound IV-4-1 of the liquid-crystal composition total weight 6%；
Account for the compound IV-4-2 of the liquid-crystal composition total weight 6%；
Account for the compound V-1 of the liquid-crystal composition total weight 7%；
Account for the compound V-2 of the liquid-crystal composition total weight 8%；And
The compound V-8 of the liquid-crystal composition total weight 8% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 6%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 5%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 33%；
Account for the compound III-4-3 of the liquid-crystal composition total weight 5%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound IV-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound IV-1-7 of the liquid-crystal composition total weight 4%；
Account for the compound V-1 of the liquid-crystal composition total weight 6%；
Account for the compound V-2 of the liquid-crystal composition total weight 7%；
Account for the compound V-8 of the liquid-crystal composition total weight 6%；
Account for the compound V-5 of the liquid-crystal composition total weight 5%；And
The compound VI-3-1 of the liquid-crystal composition total weight 3% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 5%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 5%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 7%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 4%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 30%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 5%；
Account for the compound IV-1-3 of the liquid-crystal composition total weight 5%；
Account for the compound IV-1-7 of the liquid-crystal composition total weight 5%；
Account for the compound IV-2-1 of the liquid-crystal composition total weight 4%；
Account for the compound V-1 of the liquid-crystal composition total weight 6%；
Account for the compound V-2 of the liquid-crystal composition total weight 6%；
Account for the compound V-8 of the liquid-crystal composition total weight 6%；
Account for the compound V-5 of the liquid-crystal composition total weight 6%；And
The compound VI-3-1 of the liquid-crystal composition total weight 2% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 3%；
Account for the compound II-1 of the liquid-crystal composition total weight 4%；
Account for the compound II-2 of the liquid-crystal composition total weight 3%；
Account for the compound III-1-1 of the liquid-crystal composition total weight 21%；
Account for the compound III-1-2 of the liquid-crystal composition total weight 12%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 7%；
Account for the compound III-2-1 of the liquid-crystal composition total weight 8%；
Account for the compound III-4-3 of the liquid-crystal composition total weight 8%；
Account for the compound III-4-4 of the liquid-crystal composition total weight 5%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 9%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound IV-2-1 of the liquid-crystal composition total weight 6%；And
The compound V-2 of the liquid-crystal composition total weight 6% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-2-1 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 3%；
Account for the compound III-1-1 of the liquid-crystal composition total weight 20%；
Account for the compound III-1-2 of the liquid-crystal composition total weight 15%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 10%；
Account for the compound III-2-1 of the liquid-crystal composition total weight 10%；
Account for the compound III-4-3 of the liquid-crystal composition total weight 7%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 8%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound IV-2-1 of the liquid-crystal composition total weight 5%；And
Account for the compound V-2 of the liquid-crystal composition total weight 6%.
Another aspect of the present invention be to provide it is a kind of comprising suitable big dielectric anisotropic, fast-response, to ultraviolet light
(UV) and the liquid crystal display device of the liquid-crystal composition of high-temperature stability.
The present invention is screened by many experiments, and preferably obtaining liquid-crystal composition of the invention has suitable big dielectric every
The opposite sex, fast-response, to characteristics such as ultraviolet light (UV) and high-temperature stabilities, liquid-crystal composition of the present invention be suitable for VA or
In IPS/FFS liquid crystal display device.
In the present invention unless otherwise specified, the ratio is weight ratio, and all temperature are degree celsius temperature, institute
The box thickness that the test for the response time data stated is selected is 4 μm.
Specific embodiment
Illustrate the present invention below with reference to specific embodiment.It should be noted that the following examples are the present invention
Example, be only used to illustrate the present invention, and be not limited to the present invention.Without departing from the spirit or scope of the invention,
It can carry out other combinations and the various improvement in present inventive concept.
For convenient for expressing, in following embodiment, unit structure code listed by table 1 of liquid-crystal composition is indicated:
The group structure code of 1 liquid-crystal compounds of table
By taking the compound of following structural formula as an example:
The structural formula such as indicates by code listed in Table 1, then can be expressed as: mCPWn, and the m in code indicates left end alkyl
Carbon atom number, such as m are " 2 ", that is, indicate that the alkyl is-C2H5；C in code represents " cyclohexyl ", and the P in code is represented
" Isosorbide-5-Nitrae-phenylene ", the W in code represent " 2,3- bis- fluoro- Isosorbide-5-Nitrae-phenylene ", and the n in code indicates the carbon atom of left end alkyl
Number, such as n are " 2 ", that is, indicate that the alkyl is-C2H5。
In following embodiment test item to write a Chinese character in simplified form code name as follows:
Cp: clearing point (nematic-isotropic phase transition temperature, DEG C)
Δ n: optical anisotropy (589nm, 25 DEG C)
Δ ε: dielectric anisotropy (1KHz, 25 DEG C)
η viscosity (mPa*s, 25 DEG C)
VthThe character voltage of threshold voltage=in 10% relative permeability
VsatThe character voltage of saturation voltage=in 90% relative permeability
ToffWhen removing electricity, from 90% transmitance be down to 10% transmitance needed for the time (ms, 25 DEG C)
VHR (initial): initial voltage conservation rate (%)
VHR (UV): the voltage retention (%) after the irradiation of UV light
VHR (high temperature): high temperature keeps the voltage retention (%) after 1h at 150 DEG C
Wherein, optical anisotropy using abbe's refractometer under sodium lamp (589nm) light source, 25 DEG C test；V10It surveys
Strip part: DMS505/ square wave/1KHZ, 4 μm of VA cell；
Δ ε=ε ‖-ε ⊥, wherein ε ‖ is the dielectric constant for being parallel to molecular axis, and ε ⊥ is normal for the dielectric perpendicular to molecular axis
Number, test condition: 25 DEG C, 1KHz, 6 μm of VA cell；
VHR (initial) is obtained using TOY06254 type liquid crystal evaluation of physical property system testing；Test temperature is 60 DEG C, test electricity
Pressure is 5V, test frequency 6Hz；
VHR (UV) is obtained using TOY06254 type liquid crystal evaluation of physical property system testing；Using wavelength be 365nm, energy is
6000mJ/cm2Light irradiating liquid crystal after test, 60 DEG C of test temperature, test voltage 5V, test frequency 6Hz；
VHR (high temperature) is obtained using TOY06254 type liquid crystal evaluation of physical property system testing；Liquid crystal high temperature at 150 DEG C is kept
It is tested after 1h, 60 DEG C of test temperature, test voltage 5V, test frequency 6Hz；
Each ingredient used by below in an example, the synthesis can be carried out by known methods, or passes through
Commercial sources obtain.These synthetic technologys be it is conventional, acquired each liquid-crystal compounds meets electrical type compound mark after tested
It is quasi-.
The proportion of each liquid-crystal composition as defined according to the following examples, prepares liquid-crystal composition.The liquid-crystal composition
Preparation carry out according to conventional methods in the art, such as take heating, ultrasonic wave, suspension mode mixed according to regulation ratio
It closes and is made.
Prepare and research the liquid-crystal composition provided in the following example.Be shown below each liquid-crystal composition composition and
Its performance parameter test result.
Comparative example 1
It is configured to the liquid-crystal composition of comparative example 1 with each compound and weight percent listed by table 2, is filled in liquid crystal
It is tested for the property between display two substrates, test data is as shown in the table:
2 liquid crystal combination composition formula of table and its test performance
Comparative example 2
It is configured to the liquid-crystal composition of comparative example 2 with each compound and weight percent listed by table 3, is filled in liquid crystal
It is tested for the property between display two substrates, test data is as shown in the table:
3 liquid crystal combination composition formula of table and its test performance
Embodiment 1
It is configured to the liquid-crystal composition of embodiment 1 by each compound and weight percent listed in table 4, is filled in liquid
It is tested for the property between crystal display two substrates, test data is as shown in the table:
4 liquid crystal combination composition formula of table and its test performance
Embodiment 2
It is configured to the liquid-crystal composition of embodiment 2 by each compound and weight percent listed in table 5, is filled in liquid
It is tested for the property between crystal display two substrates, test data is as shown in the table:
5 liquid crystal combination composition formula of table and its test performance
Embodiment 3
It is configured to the liquid-crystal composition of embodiment 3 by each compound and weight percent listed in table 6, is filled in liquid
It is tested for the property between crystal display two substrates, test data is as shown in the table:
6 liquid crystal combination composition formula of table and its test performance
Embodiment 4
It is configured to the liquid-crystal composition of embodiment 4 by each compound and weight percent listed in table 7, is filled in liquid
It is tested for the property between crystal display two substrates, test data is as shown in the table:
7 liquid crystal combination composition formula of table and its test performance
Respectively compared with comparative example 1, comparative example 2, which has lesser rotation viscous for embodiment 1, embodiment 3
Degree and response time, preferable stability can combine fast-response and high reliability under suitable dielectric anisotropic
It is required that being suitable for VA or IPS/FFS liquid crystal display device.
Respectively compared with comparative example 1, comparative example 2, which is taking into account fast-response and height for embodiment 2, embodiment 4
With big dielectric anisotropic while the requirement of reliability, it is suitable for VA or IPS/FFS liquid crystal display device.
Comparative example 3
It is configured to the liquid-crystal composition of comparative example 3 with each compound and weight percent listed by table 8, is filled in liquid crystal
It is tested for the property between display two substrates, test data is as shown in the table:
8 liquid crystal combination composition formula of table and its test performance
Embodiment 5
It is configured to the liquid-crystal composition of embodiment 5 by each compound and weight percent listed in table 9, is filled in liquid
It is tested for the property between crystal display two substrates, test data is as shown in the table:
9 liquid crystal combination composition formula of table and its test performance
Embodiment 6
It is configured to the liquid-crystal composition of embodiment 6 by each compound and weight percent listed in table 10, is filled in
It is tested for the property between liquid crystal display two substrates, test data is as shown in the table:
10 liquid crystal combination composition formula of table and its test performance
Respectively compared with comparative example 3, which has lesser rotary viscosity and response for embodiment 5, embodiment 6
Time, preferable stability can combine fast-response and the requirement of high reliability under suitable dielectric anisotropic, be applicable in
In VA or IPS/FFS liquid crystal display device.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of liquid-crystal composition, includes:
One or more groups selected from compounds of formula I composition
One or more groups selected from compounds of formula II composition
And
One or more groups selected from compounds of formula III composition
Wherein,
R1And R2It is identical or different, each independently represent the straight chain that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7
Alkoxy；
R3And R4It is identical or different, each independently represent the straight chained alkyl that carbon atom number is 1-10；
R5And R6It is identical or different, each independently represent the straight chain that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7
Alkoxy；Carbon atom number is the straight-chain alkenyl of 2-7；
M and n are identical or different, each independently represent 1 or 2；
RingIt is identical or different, it each independently represents
When n indicates 2, two ringsIt is identical or different, it each independently represents
The liquid-crystal composition also includes: one or more compounds selected from general formula IV and/or V
And
Wherein,
R7、R8、R9And R10It is identical or different, each independently represent the straight chained alkyl that carbon atom number is 1-7, carbon atom number 1-7
Unbranched alkoxy；
P indicates 1 or 2；
Z1Indicate singly-bound ,-CH2O-,-COO-；
In the liquid-crystal composition, the weight percentage of compounds of formula I is 1-25%；The weight of compounds of formula II
Percentage composition is 1-20%.
2. liquid-crystal composition according to claim 1, which is characterized in that the compounds of formula I is selected from by followingization
Close the group of object composition:
And
Wherein,
R1Indicate the unbranched alkoxy that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7；
R2Indicate that carbon atom number is the unbranched alkoxy of 1-7,
The compounds of formula II is selected from the group being made of following compounds:
Wherein,
R3And R4It is identical or different, each independently represent the straight chained alkyl that carbon atom number is 2-8；
The compounds of formula III is selected from the group being made of following compounds:
And
Wherein,
R5And R6It is identical or different, each independently represent the straight chain that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7
Alkoxy；Carbon atom number is the straight-chain alkenyl of 2-7.
3. liquid-crystal composition according to claim 2, which is characterized in that the compounds of formula I is selected from by followingization
Close the group of object composition:
And
The compounds of formula II is selected from the group being made of following compounds:
And
The compounds of formula III is selected from the group being made of following compounds:
And
4. liquid-crystal composition according to claim 1, which is characterized in that the compounds of formula IV is selected from by followingization
Close the group of object composition:
And
Wherein,
R7Indicate the straight chained alkyl that carbon atom number is 1-7 or the unbranched alkoxy that carbon atom number is 1-7；
R8Indicate that carbon atom number is the unbranched alkoxy of 1-7；
The compounds of formula V is selected from the group being made of following compounds:
Wherein,
R9Indicate the unbranched alkoxy that straight chained alkyl, carbon atom number that carbon atom number is 1-7 are 1-7；
R10Indicate that carbon atom number is the unbranched alkoxy of 1-7.
5. liquid-crystal composition according to claim 4, which is characterized in that the compounds of formula IV is selected from by followingization
Close the group of object composition:
And
The compounds of formula V is selected from the group being made of following compounds:
And
6. liquid-crystal composition according to any one of claims 1-5, which is characterized in that the liquid-crystal composition also wraps
Contain: one or more selected from compounds of formula VI
Wherein,
R11And R12Identical or different, each independently representing straight chained alkyl that carbon atom number is 1-7 or carbon atom number is the straight of 1-7
Chain alkoxy；
RingIt is identical or different, it each independently represents
Z2Indicate singly-bound ,-CH2O- or-COO-.
7. liquid-crystal composition according to claim 6, which is characterized in that the compounds of formula VI is selected from by followingization
Close the group of object composition:
And
Wherein,
R11And R12It is identical or different, each independently represent the straight chained alkyl that carbon atom number is 1-7.
8. liquid-crystal composition according to claim 7, which is characterized in that the compounds of formula VI is selected from by followingization
Close the group of object composition:
And
9. liquid-crystal composition according to any one of claims 1 to 8, which is characterized in that the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 4%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 7%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 35%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 7%；
Account for the compound IV-3-3 of the liquid-crystal composition total weight 5%；
Account for the compound IV-3-2 of the liquid-crystal composition total weight 5%；
Account for the compound IV-4-2 of the liquid-crystal composition total weight 4%；
Account for the compound V-1 of the liquid-crystal composition total weight 7%；
Account for the compound V-2 of the liquid-crystal composition total weight 7%；And
The compound V-8 of the liquid-crystal composition total weight 7% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 5%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 6%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 6%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 31%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 3%；
Account for the compound IV-3-3 of the liquid-crystal composition total weight 6%；
Account for the compound IV-4-1 of the liquid-crystal composition total weight 6%；
Account for the compound IV-4-2 of the liquid-crystal composition total weight 6%；
Account for the compound V-1 of the liquid-crystal composition total weight 7%；
Account for the compound V-2 of the liquid-crystal composition total weight 8%；And
The compound V-8 of the liquid-crystal composition total weight 8% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 6%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 5%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 33%；
Account for the compound III-4-3 of the liquid-crystal composition total weight 5%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound IV-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound IV-1-7 of the liquid-crystal composition total weight 4%；
Account for the compound V-1 of the liquid-crystal composition total weight 6%；
Account for the compound V-2 of the liquid-crystal composition total weight 7%；
Account for the compound V-8 of the liquid-crystal composition total weight 6%；
Account for the compound V-5 of the liquid-crystal composition total weight 5%；And
The compound VI-3-1 of the liquid-crystal composition total weight 3% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 5%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 5%；
Account for the compound I-1-3 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 7%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 4%；
Account for the compound III-1-4 of the liquid-crystal composition total weight 30%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 5%；
Account for the compound IV-1-3 of the liquid-crystal composition total weight 5%；
Account for the compound IV-1-7 of the liquid-crystal composition total weight 5%；
Account for the compound IV-2-1 of the liquid-crystal composition total weight 4%；
Account for the compound V-1 of the liquid-crystal composition total weight 6%；
Account for the compound V-2 of the liquid-crystal composition total weight 6%；
Account for the compound V-8 of the liquid-crystal composition total weight 6%；
Account for the compound V-5 of the liquid-crystal composition total weight 6%；And
The compound VI-3-1 of the liquid-crystal composition total weight 2% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 3%；
Account for the compound II-1 of the liquid-crystal composition total weight 4%；
Account for the compound II-2 of the liquid-crystal composition total weight 3%；
Account for the compound III-1-1 of the liquid-crystal composition total weight 21%；
Account for the compound III-1-2 of the liquid-crystal composition total weight 12%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 7%；
Account for the compound III-2-1 of the liquid-crystal composition total weight 8%；
Account for the compound III-4-3 of the liquid-crystal composition total weight 8%；
Account for the compound III-4-4 of the liquid-crystal composition total weight 5%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 9%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound IV-2-1 of the liquid-crystal composition total weight 6%；And
The compound V-2 of the liquid-crystal composition total weight 6% is accounted for,
Alternatively, the liquid-crystal composition includes:
Account for the compound I-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound I-1-2 of the liquid-crystal composition total weight 4%；
Account for the compound I-2-1 of the liquid-crystal composition total weight 4%；
Account for the compound II-1 of the liquid-crystal composition total weight 3%；
Account for the compound III-1-1 of the liquid-crystal composition total weight 20%；
Account for the compound III-1-2 of the liquid-crystal composition total weight 15%；
Account for the compound III-3-3 of the liquid-crystal composition total weight 10%；
Account for the compound III-2-1 of the liquid-crystal composition total weight 10%；
Account for the compound III-4-3 of the liquid-crystal composition total weight 7%；
Account for the compound III-5-1 of the liquid-crystal composition total weight 8%；
Account for the compound IV-1-1 of the liquid-crystal composition total weight 4%；
Account for the compound IV-2-1 of the liquid-crystal composition total weight 5%；And
Account for the compound V-2 of the liquid-crystal composition total weight 6%.
10. a kind of liquid crystal display device, the liquid crystal display device includes described in any item liquid crystal groups of claim 1 to 9
Close object.
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| JP2010270074A (en) * | 2009-05-22 | 2010-12-02 | Dic Corp | Fluorobenzene derivative and liquid crystal composition containing the compound |
| CN102307838A (en) * | 2009-02-17 | 2012-01-04 | Jnc株式会社 | Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition using this and liquid crystal display device |
| JP2012097222A (en) * | 2010-11-04 | 2012-05-24 | Dic Corp | Nematic liquid crystal composition and liquid crystal display element using the same |
| CN104419427A (en) * | 2013-08-20 | 2015-03-18 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and application thereof |
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| JP5515505B2 (en) * | 2009-08-12 | 2014-06-11 | Ｊｎｃ株式会社 | Liquid crystal composition and liquid crystal display element |
| JP5515619B2 (en) * | 2009-10-26 | 2014-06-11 | Ｊｎｃ株式会社 | Liquid crystal composition and liquid crystal display element |
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| CN102307838A (en) * | 2009-02-17 | 2012-01-04 | Jnc株式会社 | Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition using this and liquid crystal display device |
| JP2010270074A (en) * | 2009-05-22 | 2010-12-02 | Dic Corp | Fluorobenzene derivative and liquid crystal composition containing the compound |
| JP2012097222A (en) * | 2010-11-04 | 2012-05-24 | Dic Corp | Nematic liquid crystal composition and liquid crystal display element using the same |
| CN104419427A (en) * | 2013-08-20 | 2015-03-18 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and application thereof |
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