CN109575952A - A kind of liquid-crystal composition and its liquid crystal display device with high penetrance - Google Patents
A kind of liquid-crystal composition and its liquid crystal display device with high penetrance Download PDFInfo
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- CN109575952A CN109575952A CN201710894136.5A CN201710894136A CN109575952A CN 109575952 A CN109575952 A CN 109575952A CN 201710894136 A CN201710894136 A CN 201710894136A CN 109575952 A CN109575952 A CN 109575952A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
Abstract
The invention discloses a kind of liquid-crystal composition, the liquid-crystal composition includes: the compound of at least one general formula I；And the polymerizable compound of at least one general formula II.Liquid-crystal composition provided by the invention has suitable optical anisotropy, suitable dielectric anisotropy and while maintaining relatively high clearing point, maximum penetration rate also with higher, and contrast is higher.When the liquid-crystal composition is applied to PSVA type liquid crystal display, there is excellent display effect.The present invention also provides a kind of liquid crystal display devices comprising the liquid-crystal composition.
Description
Technical field
The present invention relates to liquid crystal material fields, and in particular to a kind of liquid-crystal composition and its liquid crystal with high penetrance
Display device.
Background technique
Liquid crystal display (Liquid Crystal Display, LCD) is because its is small in size, light-weight, low in energy consumption and shows
Good quality and developed rapidly, be especially widely applied in portable electronic information product, wherein active
Thin Film Transistor-LCD (Thin Film Transistor-LCD, TFT-LCD) application is especially extensive.With regard to current mainstream
For TFT-LCD display panel in the market, three types can be divided into, be twisted-nematic (Twisted Nematic, TN) respectively
Or super twisted nematic (Super Twisted Nematic, STN) type, plane conversion (In-Plane Switching, IPS) type
And vertical orientation (Vertical Alignment, VA) type.
In the application of liquid crystal display device, influence of the contrast to visual effect is very crucial, in general contrast
Bigger, the image the clear eye-catching, and the color also the distinct gorgeous；And contrast is small, then entire picture is all dusky.High contrast
Clarity, the details of image are showed, gray-level performance all has very great help.High contrast product is in black and white contrast, clear
Clear degree, integrality etc. all have advantage.Contrast is also larger for the influence of dynamic video display effect, due to dynamic image
Middle light and shade conversion is than very fast, and contrast is higher, and the eyes of people are easier to tell such conversion process.Above-mentioned TFT-LCD is aobvious
Show in panel, the relatively other kinds of liquid crystal display of VA type liquid crystal display has high contrast (CR), general reachable
To 4000-8000, show (there is very wide application in terms of such as TV in large scale.
It is the liquid crystal molecule because in not powered dark-state why VA type liquid crystal display panel, which has high contrast,
It is arranged perpendicular to substrate surface, does not generate any phase difference, light leakage is extremely low, OFF state brightness very little, according to contrast calculation formula
(CR=L255/L0× 100%, wherein L255For ON state brightness, L0For OFF state brightness) known to: OFF state brightness is lower, then contrast
It is higher.In order to enable the liquid crystal molecule in VA type liquid crystal display panel to arrange perpendicular to substrate surface, need to liquid crystal molecule
Vertical orientation processing is carried out, existing widespread practice the most is to be coated with vertical orientation agent in the specific region on upper and lower substrates surface
(high molecular material polyimides, Polyimide, PI solution), then carries out long-time baking for substrate at a certain temperature, makes
Solvent in orientation agent is dried, to form PI both alignment layers in substrate surface.Since VA type liquid crystal display panel is using vertical
The diversity ratio of the liquid crystal of rotation, liquid crystal molecule birefringence is larger, leads to colour cast (color shift) problem ratio under big visual angle
It is more serious.
In order to make VA type liquid crystal display panel obtain better wide viewing angle characteristic, improve colour cast problem, it will usually take more
Farmland VA technology (multi-domain VA, MVA), i.e., be divided into multiple regions for a sub-pixel, and make the liquid in each region
Crystalline substance is lodged after application of a voltage to different directions, so that the effect for seeing all directions tends to be average, consistent.With technology
Development, there is a kind of MVA type liquid crystal display panel not needed using PI both alignment layers, referred to as polymer stabilizing vertical orientation
(polymer-stabilized vertical alignment, PSVA) type liquid crystal display panel, be by it is a small amount of (such as
0.3wt%, more typical < 1wt%) one or more polymerizable compounds be added in liquid-crystal composition, and be filled with liquid
In the case where applying voltage after brilliant box between the electrodes or not applying voltage, its in-situ polymerization or crosslinking is made (usually to pass through UV
Photopolymerization).It is aggregated at a temperature of liquid-crystal composition shows liquid crystalline phase and carries out, usually carry out at room temperature.Having proven to can
It is particularly suitable that the liquid-crystal compounds of polymerization, which is added in liquid-crystal composition,.
The brightness of liquid crystal display panel and its penetrance (T) are in a linear relationship, and brightness is higher, indicate that the light penetrated is more,
I.e. penetrance is higher, therefore above-mentioned contrast calculation formula can convert are as follows: CR=Tmax/Tmin× 100%, wherein TmaxIt indicates
Maximum penetration rate, TminIndicate minimal penetration rate.By the contrast formula it is found that there are two ways to promoting contrast: 1: being promoted
Tmax；2: reducing Tmin.And for PSVA escope part, there is small TminIt is one of its feature, TminIt further decreases
Space than relatively limited, therefore by promoted TmaxMode come to promote contrast be significantly more efficient means.
Summary of the invention
Goal of the invention: in view of the drawbacks of the prior art, it is each with suitable optics that the purpose of the present invention is to provide a kind of
Anisotropy, suitable dielectric anisotropy and while maintaining relatively high clearing point, maximum penetration also with higher
Rate, the higher liquid-crystal composition of contrast, and the liquid crystal display device comprising the liquid-crystal composition.
Technical solution of the present invention:
One aspect of the present invention provides a kind of liquid-crystal composition, includes:
The compound of at least one general formula I
The polymerizable compound of at least one general formula II
Wherein,
R1And R2It each independently represents-H ,-F, the alkyl containing 1-12 carbon atom or alkoxy, contain 2-12 carbon
The alkenyl or alkenyloxy group ,-OR of atom5OR6、OrThe wherein alkyl or alkoxy and the alkene
One or more H in base or alkenyloxy group can be replaced by F, and R1And R2In at least one be-OR5OR6；
R5Indicate the alkylidene containing 1-12 carbon atom or the alkenylene containing 2-12 carbon atom, R6Expression contains 1-
The alkyl of 12 carbon atoms or alkenyl containing 2-12 carbon atom；
L1、L2、L3And L4Each independently represent-F ,-Cl ,-CN or-NCS；
P1And P2It each independently represents
Or-SH；
r1Indicate 1,2 or 3；
r2And r3Each independently represent 0~6 positive integer；
r4And r5Each independently represent 0,1,2,3 or 4；
Z1Indicate singly-bound ,-CH2CH2,-COO- ,-OCO- ,-CH2O- ,-OCH2- or-CH=CH-COO-；
Zp1And Zp2It is each independently selected from by singly-bound ,-O- ,-S- ,-NH- ,-NHCOO- ,-OCONH- ,-CF2O-、-
OCF2-、-CF2S-、-SCF2-、-CH2CH2-、-CF2CH2-、-CH2CF2-、-CF2CF2,-CF=CH- ,-CH=CF- ,-CF=
CF-、-CO-、-COO-、-OCO-、-OCOO-、-CH2-、-OCH2-、-SCH2-、-CH2S- ,-CH=CH- ,-C ≡ C- ,-CH=
The group of CH-COO- and-OCO-CH=CH- composition；
Y1And Y2Each independently represent H, halogen, the alkyl or alkoxy that C atomicity is 1~3.
In some embodiments of the present invention, the compound of the general formula I accounts for the liquid-crystal composition total weight
0.01~15wt%；It is further preferred that the compounds of formula I account for the liquid-crystal composition total weight 0.01~
10%.
In some embodiments of the present invention, the compound of the general formula II accounts for the liquid-crystal composition total weight
0.001~5wt%；It is further preferred that the compounds of formula II account for the liquid-crystal composition total weight 0.01~
1%.
Preferably, the compound of the general formula I is selected from the group of following compound composition:
Wherein, R11Indicate alkyl or alkoxy, alkenyl or alkene containing 2-10 carbon atom containing 1-10 carbon atom
Oxygroup ,-OR5OR6；
R51Indicate the alkylidene containing 1-10 carbon atom or the alkenylene containing 2-10 carbon atom, R61Expression contains
The alkyl of 1-10 carbon atom or alkenyl containing 2-10 carbon atom.
Still further, I -1 compound is selected from the group of following compound composition:
Wherein, if R11Expression-OR51OR61, then R51It is not-(CH2)2-；
Wherein, if R11Expression-OR51OR61, then R51It is not-(CH2)2Or-(CH2)3-；
Wherein, if R11Expression-OR51OR61, then R51It is not-(CH2)2-、-(CH2)3Or-(CH2)4-；
Wherein, if R11Expression-OR51OR61, then R51It is not-(CH2)2-、-(CH2)3-、-(CH2)4Or-(CH2)5-；
Wherein, if R11Expression-OR51OR61, then R51It is not-(CH2)2-、-(CH2)3-、-(CH2)4-、-(CH2)5Or-(CH2)6-；
And
Wherein, if R11Expression-OR51OR61, then R51It is not-(CH2)2-、-(CH2)3-、-(CH2)4-、-(CH2)5-、-(CH2)6-
Or-(CH2)8-。
Preferably, in the general formula II, the P1And P2It each independently representsOr
Still further preferably, the compound of the general formula II is selected from the group of following compound composition:
Further, the liquid-crystal composition further includes the compound and/or at least one general formula of at least one general formula III
IV compound:
Wherein,
R3And R4It each independently represents-H ,-F, the alkyl containing 1-12 carbon atom or alkoxy, contain 2-12 carbon
The alkenyl or alkenyloxy group ,-OR of atom5OR6、OrThe wherein alkyl or alkoxy and the alkene
One or more H in base or alkenyloxy group can be replaced by F；
Z2Indicate singly-bound ,-COO- ,-OCO- ,-CH2O-、-OCH2Or-CH2CH2-；
L5And L6Each independently represent-F ,-Cl ,-CN or-NCS；
R7And R8It each independently represents H, the alkyl containing 1-12 carbon atom or alkoxy, contain 2-12 carbon atom
Alkenyl or alkenyloxy group；
RingIt indicatesOrWherein,Middle one or more-
CH2It can be substituted by-O-,In an at most-H can be replaced by-F；
RingAnd ringIt each independently represents
Or
N indicates 0,1 or 2, and when n is 2, ringCan be identical or different, Z2It can be identical or different；
M indicates 1,2 or 3, and when m is 2 or 3, ringIt can be identical or different.
It is further preferred that the compound of the general formula III is selected from the group being made of following compound:
Wherein,
R31And R41It each independently represents-H ,-F, the alkyl containing 1-7 carbon atom or alkoxy, contain 2-7 carbon
The alkenyl or alkenyloxy group ,-OR of atom5OR6、OrThe wherein alkyl or alkoxy and the alkene
One or more H in base or alkenyloxy group can be replaced by F.
In some embodiments of the present invention, the compound of the general formula III accounts for the 20 of the liquid-crystal composition total weight
~60wt%；It is further preferred that the compounds of formula III accounts for the 35~60% of the liquid-crystal composition total weight.
It is further preferred that the compound of the general formulae IV is selected from the group being made of following compound:
Wherein,
R71And R81It each independently represents H, the alkyl containing 1-7 carbon atom or alkoxy, contain 2-7 carbon atom
Alkenyl or alkenyloxy group.
In some embodiments of the present invention, the compound of the general formulae IV accounts for the 20 of the liquid-crystal composition total weight
~70wt%；It is further preferred that the compounds of formula IV accounts for 40~65wt% of the liquid-crystal composition total weight.
In some embodiments of the present invention, the compounds of formula I preferably is selected from the group of following compound composition: I-
3-2, I -3-3 and I -3-4.
In some embodiments of the present invention, the compounds of formula II preferably is selected from the group of following compound composition:
II-24, II-64, II-20 and II-148.
In some embodiments of the present invention, the compounds of formula III preferably is selected from the group of following compound composition:
III -2, III -9, III -6, III -3, III -7 and III -4.
In some embodiments of the present invention, the compounds of formula III preferably is selected from the group of following compound composition:
IV -2, IV -6, IV -1, IV -3, IV -5, IV -9 and IV -10.
Another aspect of the present invention provides a kind of liquid-crystal composition, also comprising describing in known to those skilled in the art and document
One or more additives.For example, can be added account for the 0-15wt% of the liquid-crystal composition total weight pleochroic dye and/
Or chiral dopant.
The possibility dopant being added preferably in composition according to the present invention is shown as follows.
In some embodiments of the present invention, it is preferable that the dopant accounts for the 0- of the liquid-crystal composition total weight
5wt%；It is highly preferred that the dopant accounts for the 0-1wt% of the liquid-crystal composition total weight.
The stabilizer that can be for example added in composition according to the present invention is referred to as follows.
Preferably, the stabilizer is selected from stabilizer as follows.
In some embodiments of the present invention, it is preferable that the stabilizer accounts for the 0- of the liquid-crystal composition total weight
5wt%；It is highly preferred that the stabilizer accounts for the 0-1wt% of the liquid-crystal composition total weight；As particularly preferred scheme, institute
State the 0-0.1wt% that stabilizer accounts for the liquid-crystal composition total weight.
Another aspect of the present invention also provides a kind of liquid crystal display device comprising above-mentioned liquid-crystal composition.
The utility model has the advantages that
Liquid-crystal composition provided by the invention have suitable optical anisotropy, suitable dielectric anisotropy and
While maintaining relatively high clearing point, maximum penetration rate also with higher, contrast is higher.The liquid-crystal composition application
When PSVA type liquid crystal display, there is excellent display effect.
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: nCCGF, and the n in code indicates the C of left end alkyl
Atomicity, such as n are " 3 ", that is, indicate that the alkyl is-C3H7；C in code represents cyclohexyl, and G represents the fluoro- Isosorbide-5-Nitrae of 2--Asia benzene
Base, F represent fluorine.
In following embodiment test item to write a Chinese character in simplified form code name as follows:
Wherein,
Optical anisotropy uses abbe's refractometer under sodium lamp (589nm) light source, 25 DEG C of tests obtain；
Δ ε=ε∥-ε⊥, wherein ε∥For the dielectric constant for being parallel to molecular axis, ε⊥It is normal for the dielectric perpendicular to molecular axis
Number, test condition: 25 DEG C, 1KHz, testing cassete be TN90 type, box is 7 μm thick；
TmaxTest: the penetrance of light modulation device, choosing are tested using DMS 505 under the voltage of 0~5V (step=0.1V)
It maximum value therein and records out, the light modulation device box is 5.2 μm thick.
UV process conditions in following embodiment: 16V driving, 80mwcm-2150s is irradiated with 365nm, testing cassete is VA type,
Box is 3 μm thick.
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 by each compound and weight percent listed in table 2 and table 3, fills out
It fills between liquid crystal display two substrates and is tested for the property.
2 liquid crystal combination composition formula of table
The polymerizable components in table 3 are added in above-mentioned 100 parts by weight of liquid-crystal composition:
3 polymerizable components of table
Performance parameter test result such as the following table 4 of resulting composition:
4 performance parameter test of table
| Δn | 0.094 |
| Δε | -3.1 |
| Cp | 73.7 |
| Tmax(%) | 27.2 |
Embodiment 1
3CWO4 in comparative example 1 is replaced with into the liquid-crystal composition that 3OWWO3O1 is configured to embodiment 1, as shown in table 5,
It is filled between liquid crystal display two substrates and is tested for the property.
5 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 3CWO4O1 | 6 |
| 5CWO2 | 8 |
| 2CPWO2 | 7 |
| 3CPWO4 | 9 |
| 3OWWO3O1 | 7 |
| 3CCWO2 | 14 |
| 4CCWO2 | 5 |
| 3CPO2 | 9 |
| 3CPP2 | 6 |
| 3CC2 | 20 |
| 4CC3 | 9 |
| It amounts to | 100 |
The content and component of polymerizable components are the same as comparative example 1.
Performance parameter test result such as the following table 6 of resulting composition:
6 performance parameter test of table
| Δn | 0.097 |
| Δε | -3.3 |
| Cp | 74.7 |
| Tmax(%) | 28.4 |
After being compared by above-mentioned comparative example 1 and embodiment 1 it is found that being introduced into the component in general formula I of the present invention, maximum penetration rate is obtained
To being obviously improved.
Comparative example 2
It is configured to the liquid-crystal composition of comparative example 2 by each compound and weight percent listed in table 7 and table 8, fills out
It fills between liquid crystal display two substrates and is tested for the property.
7 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 3CC2 | 23 |
| 4CC3 | 3 |
| 5PP1 | 11 |
| 3PWO2 | 10 |
| 5CC3 | 4 |
| 3C1OWO2 | 4 |
| 3CCP1 | 3 |
| 3CPP2 | 15 |
| 3CPWO2 | 9 |
| 2CC1OWO2 | 7 |
| 3CC1OWO2 | 11 |
| It amounts to | 100 |
The polymerizable components in table 8 are added in above-mentioned 100 parts by weight of liquid-crystal composition:
8 polymerizable components of table
Performance parameter test result such as the following table 9 of resulting composition:
9 performance parameter test of table
| Δn | 0.109 |
| Δε | -3.2 |
| Cp | 75.6 |
| Tmax(%) | 29.1 |
Embodiment 2
3C1OWO2 in comparative example 2 is replaced with into the liquid-crystal composition that 2OWWO4O1 is configured to embodiment 2, such as table respectively
Shown in 10, it is filled between liquid crystal display two substrates and is tested for the property.
10 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 3CC2 | 23 |
| 4CC3 | 3 |
| 5PP1 | 11 |
| 3PWO2 | 10 |
| 5CC3 | 4 |
| 2OWWO4O1 | 4 |
| 3CCP1 | 3 |
| 3CPP2 | 15 |
| 3CPWO2 | 9 |
| 2CC1OWO2 | 7 |
| 3CC1OWO2 | 11 |
| It amounts to | 100 |
The content and component of polymerizable components are the same as comparative example 2.
Performance parameter test result such as the following table 11 of resulting composition:
11 performance parameter test of table
After being compared by above-mentioned comparative example 2 and embodiment 2 it is found that being introduced into the component in general formula I of the present invention, maximum penetration rate is obtained
To being obviously improved.
Comparative example 3
The liquid-crystal composition of comparative example 3 is configured to by each compound and weight percent listed in table 12 and table 13,
It is filled between liquid crystal display two substrates and is tested for the property.
12 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 2CPWO2 | 4 |
| 3CPWO2 | 5 |
| 3C1OWO2 | 7 |
| 2CC1OWO2 | 10 |
| 3CC1OWO2 | 10 |
| 4CC1OWO2 | 10 |
| 3CPO2 | 3 |
| 3CPP2 | 6 |
| 3CPPC3 | 3 |
| 3CGPC3 | 4 |
| 3CC2 | 18 |
| 4CC3 | 6 |
| 3CCP1 | 10 |
| 5PP1 | 4 |
| It amounts to | 100 |
The polymerizable components in table 13 are added in above-mentioned 100 parts by weight of liquid-crystal composition:
13 polymerizable components of table
Performance parameter test result such as the following table 14 of resulting composition:
14 performance parameter test of table
| Δn | 0.109 |
| Δε | -3.3 |
| Cp | 110 |
| Tmax(%) | 29.3 |
Embodiment 3
3C1OWO2,3CPO2 in comparative example 3 is replaced with into 2OWWO5O1,3OWWO4O2 respectively and is configured to embodiment 3
Liquid-crystal composition is filled between liquid crystal display two substrates and is tested for the property as shown in Table 15.
15 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 2CPWO2 | 4 |
| 3CPWO2 | 5 |
| 2OWWO5O1 | 7 |
| 2CC1OWO2 | 10 |
| 3CC1OWO2 | 10 |
| 4CC1OWO2 | 10 |
| 3OWWO4O2 | 3 |
| 3CPP2 | 6 |
| 3CPPC3 | 3 |
| 3CGPC3 | 4 |
| 3CC2 | 18 |
| 4CC3 | 6 |
| 3CCP1 | 10 |
| 5PP1 | 4 |
| It amounts to | 100 |
The content and component of polymerizable components are the same as comparative example 3.
Performance parameter test result such as the following table 16 of resulting composition:
16 performance parameter test of table
| Δn | 0.115 |
| Δε | -3.6 |
| Cp | 108.6 |
| Tmax(%) | 29.8 |
After being compared by above-mentioned comparative example 3 and embodiment 3 it is found that being introduced into the component in general formula I of the present invention, maximum penetration rate is obtained
To being obviously improved.
Comparative example 4
The liquid-crystal composition of comparative example 4 is configured to by each compound and weight percent listed in table 17 and table 18,
It is filled between liquid crystal display two substrates and is tested for the property.
17 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 3CPO2 | 2 |
| 3CPP2 | 12 |
| 3C1OWO2 | 11 |
| 2CC1OWO2 | 5 |
| 3CC1OWO2 | 9 |
| 3CCWO2 | 7 |
| 3CC2 | 22 |
| 4CC3 | 4 |
| 5PP1 | 9 |
| 2C1OWO2 | 4 |
| 4C1OWO2 | 4 |
| 3CPP1 | 5 |
| 2CPP1 | 6 |
| It amounts to | 100 |
The polymerizable components in table 18 are added in above-mentioned 100 parts by weight of liquid-crystal composition:
18 polymerizable components of table
Performance parameter test result such as the following table 19 of resulting composition:
19 performance parameter test of table
Embodiment 4
3% 3C1OWO2 in comparative example 4 is replaced with into the liquid-crystal composition that 2OWWO4O1 is configured to embodiment 4, such as table
Shown in 20, it is filled between liquid crystal display two substrates and is tested for the property.
20 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 3CPO2 | 2 |
| 3CPP2 | 12 |
| 3C1OWO2 | 8 |
| 2OWWO4O1 | 3 |
| 2CC1OWO2 | 5 |
| 3CC1OWO2 | 9 |
| 3CCWO2 | 7 |
| 3CC2 | 22 |
| 4CC3 | 4 |
| 5PP1 | 9 |
| 2C1OWO2 | 4 |
| 4C1OWO2 | 4 |
| 3CPP1 | 5 |
| 2CPP1 | 6 |
| It amounts to | 100 |
The content and component of polymerizable components are the same as comparative example 4.
Performance parameter test result such as the following table 21 of resulting composition:
21 performance parameter test of table
| Δn | 0.100 |
| Δε | -3.0 |
| Cp | 75.6 |
| Tmax(%) | 29.5 |
After being compared by above-mentioned comparative example 4 and embodiment 4 it is found that being introduced into the component in general formula I of the present invention, maximum penetration rate is obtained
To being obviously improved.
Comparative example 5
The liquid-crystal composition of comparative example 5 is configured to by each compound and weight percent listed in table 22 and table 23,
It is filled between liquid crystal display two substrates and is tested for the property.
22 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 3CC1 | 17 |
| 3CCV1 | 11 |
| 3CWO2 | 12 |
| 3PWO2 | 13 |
| 3CWO4 | 2 |
| 3CPP2 | 9 |
| 2CPWO2 | 9 |
| 3CCWO2 | 6 |
| 3CPWO2 | 11 |
| 3CC1OC3 | 3 |
| 5CPP2 | 3 |
| 4CC1OC3 | 4 |
| It amounts to | 100 |
Polymerizable components in table 23 are added in above-mentioned 100 parts by weight of liquid-crystal composition:
23 polymerizable components of table
Performance parameter test result such as the following table 24 of resulting composition:
24 performance parameter test of table
| Δn | 0.108 |
| Δε | -3.3 |
| Cp | 74.9 |
| Tmax(%) | 28.2 |
Embodiment 5
2% 3CWO4 in comparative example 5 is replaced with into the liquid-crystal composition that 3OWWO4O1 is configured to embodiment 5, such as table 25
It is shown, it is filled between liquid crystal display two substrates and is tested for the property.
25 liquid crystal combination composition formula of table
| Component codes | Weight percent |
| 3CC1 | 17 |
| 3CCV1 | 11 |
| 3CWO2 | 12 |
| 3PWO2 | 13 |
| 3OWWO4O1 | 2 |
| 3CPP2 | 9 |
| 2CPWO2 | 9 |
| 3CCWO2 | 6 |
| 3CPWO2 | 11 |
| 3CC1OC3 | 3 |
| 5CPP2 | 3 |
| 4CC1OC3 | 4 |
| It amounts to | 100 |
The content and component of polymerizable components are the same as comparative example 5.
Performance parameter test result such as the following table 26 of resulting composition:
26 performance parameter test of table
| Δn | 0.109 |
| Δε | -3.4 |
| Cp | 75.2 |
| Tmax(%) | 29.1 |
After being compared by above-mentioned comparative example 5 and embodiment 5 it is found that being introduced into the component in general formula I of the present invention, maximum penetration rate is obtained
To being obviously improved.
Pass through above embodiments and comparative example, it is known that liquid-crystal composition of the invention have suitable optical anisotropy,
Suitable dielectric anisotropy and while maintaining relatively high clearing point, maximum penetration rate also with higher, comparison
Du Genggao.When the liquid-crystal composition is applied to PSVA type liquid crystal display, there is excellent display effect.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands the content of present invention and is implemented, and it is not intended to limit the scope of the present invention, and all spirit according to the present invention is real
The equivalent change or modification that matter is done, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of liquid-crystal composition, which is characterized in that the liquid-crystal composition includes:
The compound of at least one general formula I
And
The polymerizable compound of at least one general formula II
Wherein,
R1And R2It each independently represents-H ,-F, the alkyl containing 1-12 carbon atom or alkoxy, contain 2-12 carbon atom
Alkenyl or alkenyloxy group ,-OR5OR6、Wherein the alkyl or alkoxy and the alkenyl or
One or more H in alkenyloxy group can be replaced by F, and R1And R2In at least one be-OR5OR6；
R5Indicate the alkylidene containing 1-12 carbon atom or the alkenylene containing 2-12 carbon atom, R6It indicates containing 1-12
The alkyl of carbon atom or alkenyl containing 2-12 carbon atom；
L1、L2、L3And L4Each independently represent-F ,-Cl ,-CN or-NCS；
P1And P2It each independently represents Or-SH；
r1Indicate 1,2 or 3；
r2And r3Each independently represent 0~6 positive integer；
r4And r5Each independently represent 0,1,2,3 or 4；
Z1Indicate singly-bound ,-CH2CH2-、-COO-、-OCO-、-CH2O-、-OCH2Or-CH=CH-COO-；
Zp1And Zp2It is each independently selected from by singly-bound ,-O- ,-S- ,-NH- ,-NHCOO- ,-OCONH- ,-CF2O-、-OCF2-、-
CF2S-、-SCF2-、-CH2CH2-、-CF2CH2-、-CH2CF2-、-CF2CF2,-CF=CH- ,-CH=CF- ,-CF=CF- ,-
CO-、-COO-、-OCO-、-OCOO-、-CH2-、-OCH2-、-SCH2-、-CH2S- ,-CH=CH- ,-C ≡ C- ,-CH=CH-COO-
With the group of-OCO-CH=CH- composition；
Y1And Y2Each independently represent H, halogen, the alkyl or alkoxy that C atomicity is 1~3.
2. liquid-crystal composition according to claim 1, which is characterized in that the compound of the general formula I is selected from following chemical combination
The group of object composition:
Wherein,
R11Indicate the alkyl containing 1-10 carbon atom or alkoxy, the alkenyl containing 2-10 carbon atom or alkenyloxy group ,-
OR5OR6；
R51Indicate the alkylidene containing 1-10 carbon atom or the alkenylene containing 2-10 carbon atom, R61It indicates containing 1-10
The alkyl of carbon atom or alkenyl containing 2-10 carbon atom.
3. liquid-crystal composition according to claim 1, which is characterized in that in the general formula II, the P1And P2It is respectively independent
Ground indicates
4. liquid-crystal composition according to claim 3, which is characterized in that the compound of the general formula II is selected from following chemical combination
The group of object composition:
5. liquid-crystal composition according to claim 1, which is characterized in that the liquid-crystal composition further includes at least one logical
The compound of the compound of formula III and/or at least one general formulae IV:
Wherein,
R3And R4It each independently represents-H ,-F, the alkyl containing 1-12 carbon atom or alkoxy, contain 2-12 carbon atom
Alkenyl or alkenyloxy group ,-OR5OR6、Wherein the alkyl or alkoxy and the alkenyl or
One or more H in alkenyloxy group can be replaced by F；
Z2Indicate singly-bound ,-COO- ,-OCO- ,-CH2O-、-OCH2Or-CH2CH2-；
L5And L6Each independently represent-F ,-Cl ,-CN or-NCS；
R7And R8Each independently represent H, alkyl or alkoxy, the alkene containing 2-12 carbon atom containing 1-12 carbon atom
Base or alkenyloxy group；
RingIt indicatesOrWherein,Middle one or more-CH2It can
It is substituted by-O-,In an at most-H can be replaced by-F；
RingAnd ringIt each independently represents
N indicates 0,1 or 2, and when n is 2, ringCan be identical or different, Z2It can be identical or different；
M indicates 1,2 or 3, and when m is 2 or 3, ringIt can be identical or different.
6. liquid-crystal composition according to claim 1 or 5, which is characterized in that the compound of the general formula I accounts for the liquid crystal
1~15wt% of composition total weight.
7. liquid-crystal composition according to claim 1 or 5, which is characterized in that the compound of the general formula II accounts for the liquid
0.001~5wt% of brilliant composition total weight.
8. liquid-crystal composition according to claim 5, which is characterized in that the compound of the general formula III accounts for the liquid crystal group
Close 20~60wt% of object total weight.
9. liquid-crystal composition according to claim 5, which is characterized in that the compound of the general formulae IV accounts for the liquid crystal group
Close 20~70wt% of object total weight.
10. a kind of liquid crystal display device comprising any one of claim 1~9 liquid-crystal composition.
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