CN108350360A - Liquid crystal display device and liquid crystal composition contained therein - Google Patents
Liquid crystal display device and liquid crystal composition contained therein Download PDFInfo
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- CN108350360A CN108350360A CN201680062622.4A CN201680062622A CN108350360A CN 108350360 A CN108350360 A CN 108350360A CN 201680062622 A CN201680062622 A CN 201680062622A CN 108350360 A CN108350360 A CN 108350360A
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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
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
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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
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- 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
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
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- 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
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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
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
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- Liquid Crystal Substances (AREA)
Abstract
A liquid crystal display device according to an embodiment of the present invention includes a first substrate, a second substrate facing the first substrate, an electrode portion provided on one of the first substrate and the second substrate, and a liquid crystal layer provided between the first substrate and the second substrate and made of a liquid crystal composition. The liquid crystal composition comprises a liquid crystal compound containing terphenyl.
Description
Technical field
The present invention relates to liquid crystal display device and its liquid-crystal compositions for being included.
Background technology
In general, liquid crystal display device includes the first substrate for having multiple pixel electrodes, have common electrode the
Two substrates and the liquid crystal layer having between above-mentioned first substrate and second substrate.Above-mentioned liquid crystal display device passes through each
It is formed by electric field between a pixel electrodes and above-mentioned common electrode and the variation of the transmitance of the light that makes liquid crystal layer is to aobvious
Show image.Above-mentioned liquid crystal display device includes the multiple pixels for respectively having pixel electrodes.
In recent years, bidimensional image is not only presented in liquid crystal display device, such as also develops to the direction that 3-dimensional image is presented,
The composition of more image informations can be provided to user by asking.It is therefore desirable to have fast actuating speed and with it is previous
The liquid crystal display device liquid crystal display device high compared to reliability.
Invention content
Technical task
The object of the present invention is to provide liquid low-temperature stability high high reliability liquid crystal display device and its included
Crystal composite.
The method to solve the problem
The liquid crystal display device first substrate of one embodiment of the invention, the second substrate opposite with above-mentioned first substrate,
Set on any one of above-mentioned first substrate and second substrate electrode portion and be set to above-mentioned first substrate and above-mentioned second substrate
Between and the liquid crystal layer that is made of liquid-crystal composition.
The above-mentioned liquid-crystal composition of one embodiment of the invention includes the first liquid-crystal compounds represented by following chemical formula 1
At least one of and following chemical formula 2 represented by least one of the second liquid-crystal compounds, nematic-isotropism phase transformation
Temperature is -25 degree or less.
[chemical formula 1]
R1It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X1
It can be replaced by fluorine for-F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy and arbitrary hydrogen.
[chemical formula 2]
R2It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X2
For-F ,-Cl ,-OCF3, carbon atom number 1 to 10 alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L3To L6Independently
For hydrogen or fluorine, but exclude L5And L6The case where being hydrogen, n are 1 or 2.
In one embodiment of the invention, above-mentioned liquid-crystal composition can maintain 10 days or more nematics below -25 degree Celsius
Phase.
In one embodiment of the invention, above-mentioned liquid-crystal composition can further include represented by following chemical formula 3
Three liquid-crystal compounds.
[chemical formula 3]
R3It can be replaced by fluorine for the alkyl and arbitrary hydrogen of carbon atom number 1 to 10, X3For-F ,-Cl, carbon atom number 1 to 10
Alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L7To L10It independently is hydrogen or fluorine, but excludes L9And L10It is hydrogen
The case where.
In one embodiment of the invention, above-mentioned liquid-crystal composition can further include represented by following chemical formula 4
Four liquid-crystal compounds.
[chemical formula 4]
R4It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X4
It can be by fluorine for-F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen
Substitution, Z1For singly-bound ,-C ≡ C- ,-COO- ,-OCO- ,-CH2O-、-(CH2)2Or-CH=CH-, ring A are 1 or 4 cyclohexylidene
Or 1,4- phenylenes.
In one embodiment of the invention, the liquid-crystal composition of above-mentioned liquid crystal layer is relative to whole 100 weight of liquid-crystal composition
Part, can include about 1~35 parts by weight of above-mentioned first liquid-crystal compounds, about 1~30 parts by weight of above-mentioned second liquid-crystal compounds, on
State about 2~30 parts by weight of third liquid-crystal compounds and above-mentioned about 20~55 parts by weight of 4th liquid-crystal compounds.
Invention effect
An embodiment according to the present invention provides and shows refractive anisotrop, high resiliency under high clearing point, low viscosity
The liquid-crystal composition that constant and high resistivity and reliability and low-temperature stability greatly improve, and use above-mentioned liquid crystal group
Close the liquid crystal display device of object.
Description of the drawings
Fig. 1 is the schematic block diagram of the liquid crystal display device of the embodiment of the present invention.
Fig. 2 is the vertical view for showing illustrated pixel in Fig. 1.
Fig. 3 is the sectional view of the I-I' lines along Fig. 2.
Preferred forms
The present invention can carry out diversified change, and can have various forms, pass through example in the accompanying drawings
Showing specific embodiment, the present invention will be described in detail.It is to be understood, however, that above-mentioned specific embodiment can't limit the present invention
Be scheduled on specific open form, but include the thought of the present invention and technical scope is included has altered, equivalent or even
Substitute.
Hereinafter, a preferred embodiment of the present invention is described in more detail.
The present invention relates to the liquid-crystal composition as liquid crystal display device material, the liquid crystal groups of one embodiment of the invention
It includes at least one of the polyphenylene system liquid-crystal compounds represented by following chemical formula 1 to close object.Above-mentioned polyphenylene system liquid
Brilliant compound has high refractive index anisotropy.
In one embodiment of the invention, above-mentioned polyphenylene system liquid-crystal compounds can include represented by following chemical formula 1
The first liquid-crystal compounds.
[chemical formula 1]
R1It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X1
It can be replaced by fluorine for-F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy and arbitrary hydrogen.
Above-mentioned first liquid-crystal compounds can be with about 0.2 or more refractive anisotrop, and dielectric constant is about 0
Liquid crystal between about 15.Relative to whole 100 parts by weight of liquid-crystal composition, above-mentioned first liquid-crystal compounds can be set as about 1
The parts by weight of parts by weight~35.
Above-mentioned first liquid-crystal compounds as the liquid crystal for providing high refractive index anisotropy and low rotary viscosity, relative to
In the case that whole 100 parts by weight of liquid-crystal composition are set below 1 parts by weight, it is not in suitable refractive index respectively to different to exist
It the problem of property, rotary viscosity is got higher, in the case where being set as more than 35 parts by weight, deposits and is unable to maintain that liquid crystalline phase or knot at low temperature
The problem of partial crystallization goes out, and reliability reduces.
In one embodiment of the invention, above-mentioned first liquid-crystal compounds can be set as about 2 parts by weight to about 30 parts by weight.
Above-mentioned first liquid-crystal compounds is set as about 2 parts by weight or more and about 30 parts by weight relative to whole 100 parts by weight of liquid-crystal composition
In the case of below, have and show suitable horizontal refractive anisotrop and dielectric constant anisotropy and low rotation
The effect of viscosity characteristics.For example, above-mentioned first liquid-crystal compounds is in one embodiment of this invention, it is whole relative to liquid-crystal composition
100 parts by weight of body can be set as 2 parts by weight to 22.4 parts by weight.
Above-mentioned first liquid-crystal compounds can include following chemical formula 1-1 to 1-6 represented by liquid-crystal compounds in extremely
Few one kind.
[chemical formula 1-1]
[chemical formula 1-2]
[chemical formula 1-3]
[chemical formula 1-4]
[chemical formula 1-5]
[chemical formula 1-6]
The liquid-crystal composition of one embodiment of the invention includes in the second liquid-crystal compounds represented by following chemical formula 2
It is at least one.
[chemical formula 2]
R2It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X2
For-F ,-Cl ,-OCF3, carbon atom number 1 to 10 alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L3To L6Independently
For hydrogen or fluorine, but exclude L5And L6The case where being hydrogen, n are 1 or 2.
Above-mentioned second liquid-crystal compounds is the liquid crystal for being able to maintain that high clearing point.Above-mentioned second liquid-crystal compounds can have
The refractive anisotrop of about -2 to about+30 dielectric constant anisotropy and about 0.1 to about 0.3.In addition, above-mentioned second liquid crystal
Compound is the good substance of low-temperature stability.In other words, it is the spy with high refractive index anisotropy and low rotary viscosity
Property, but the increased compound of low-temperature stability of the liquid-crystal compounds of low-temperature stability difference can be made.Above-mentioned second liquid-crystal compounds
Can include 1 parts by weight to 30 parts by weight, which is to consider above-mentioned liquid crystal relative to whole 100 parts by weight of liquid-crystal composition
The value of the low-temperature stability of composition etc..In one embodiment of the invention, when above-mentioned n is 1, above-mentioned second liquid-crystal compounds phase
It can be specifically, whole in liquid-crystal composition comprising 1 parts by weight to 10 parts by weight for whole 100 parts by weight of liquid-crystal composition
Can include 2 parts by weight to 6.8 parts by weight in 100 parts by weight of body.
Above-mentioned second liquid-crystal compounds can be the liquid-crystal compounds represented by following chemical formula 2-1.
[chemical formula 2-1]
Liquid-crystal compounds represented by above-mentioned chemical formula 2-1 can include the chemical combination of following chemical formula 2-A and chemical formula 2-B
At least one of object.
[chemical formula 2-A]
[chemical formula 2-B]
An embodiment according to the present invention passes through the group of above-mentioned first liquid-crystal compounds and above-mentioned second liquid-crystal compounds
It closes, to improve the low-temperature stability of liquid-crystal composition.
Hereinafter, will be explained in greater detail.
Liquid crystal display device has TN (Twist nematic (twisted-nematic)), STN according to application model (mode)
((optical compensation is curved by optically compensated bend by (Super-twisted nematic (super twisted nematic)), OCB
It is bent)), IPS (In-plane switching (plane conversion)), FFS ((cut Fringe field switching by fringing field
Change)) etc., wherein IPS, PLS, FFS mode are the horizontal modes for applying electric field.For above-mentioned horizontal electric field mode,
Due to the use of distortion elastic constant (twist elastic constant) minimum in the elastic constant of liquid crystal, response time ratio
Vertical electric field pattern (TN, STN, OCB) is long, thus as the physical property of liquid-crystal composition, it is desirable that it is less than the rotation of vertical electric field pattern
Turn viscosity.
In characteristic required by the liquid crystal layer used in above-mentioned horizontal electric field mode, material circumstance is as shown in the following Table 1.
[table 1]
| The requirement physical property of liquid-crystal composition | A reference value |
| Clearing point (Tc) | 70 degree or more |
| Dielectric constant anisotropy (Δ ε) | 2 or more |
| Refractive anisotrop (Δ n) | 0.07 or more |
| Rotary viscosity (γ 1) | It is as low as possible |
| Elastic constant (K11、K22、K33Average value) | 8 to 18pN |
| Voltage retention (%) | It is as high as possible |
The single liquid crystal for not meeting all conditions of above-mentioned table 1 actually, by by a variety of single liquid-crystal compounds
It mixes and manufactures liquid-crystal composition, so as to meet above-mentioned condition.In the case where a variety of single liquid-crystal compounds are mixed,
Although most eutectic point be shown as -25 degree hereinafter, but when placing for a long time at low temperature, can because of low-melting single liquid crystal
Compound and recrystallize, the above-mentioned liquid-crystal composition recrystallized can not suitably drive in display device.
Therefore, though the above-mentioned liquid-crystal composition of all conditions for meeting above-mentioned table 1 should yet have in addition to above-mentioned condition with
It is outer below -25 degree in a low temperature of the low-temperature stability that can run.Here, low-temperature stability expression is not easy to send out at low temperature
The raw degree recrystallized, it is meant that nematic liquid crystalline phase is maintained at predetermined temperature temperature below and there is mobility,
And crystallization is not observed in a liquid crystal composition.Therefore, in the case of low-temperature stability low liquid-crystal composition, when low temperature
Crystallization can be precipitated.It, can be by the way that the transparent vials that liquid-crystal composition is housed be moved up and down for the judgement that liquid crystalline phase maintains
When dynamic mobility whether there is or not and liquid-crystal composition internal crystallization generate whether judge.In one embodiment of the invention, it can incite somebody to action
Below -25 degree Celsius 10 days or more not there is a situation where recrystallizing to be judged as that low-temperature stability is good, and can will take the photograph
There is a situation where recrystallize to be judged as that low-temperature stability is poor within the time less than 10 days below the degree of family name -25.
An embodiment according to the present invention, by the way that above-mentioned second liquid-crystal compounds is opposite with low-temperature stability low above-mentioned
Polyphenylene system liquid-crystal compounds mixes and manufactures liquid-crystal composition, to significantly improve the low-temperature stability of liquid-crystal composition.
Therefore, the mixture of above-mentioned first liquid-crystal compounds and the second liquid-crystal compounds disclosure satisfy that the folding that can be used for liquid crystal display device
Rate anisotropy and dielectric constant anisotropy range are penetrated, and improves low-temperature stability, when applied to liquid crystal display device
It is capable of providing the image of high-quality.
An embodiment according to the present invention, after the combination of above-mentioned first liquid-crystal compounds and above-mentioned second liquid-crystal compounds
The reliability of liquid-crystal composition is high, and can be manufactured with cheap expense.
In general, in polyphenylene liquid-crystal compounds, terphenyl compounds especially have-CF2O- linking groups
Terphenyl liquid-crystal compounds has high-k anisotropy, and has low viscosity.With-CF2The liquid of O- linking groups
Brilliant compound can be manufactured by the synthetic method represented by following chemical formula 1-0.
[chemical formula 1-0]
But there is-CF2The liquid-crystal compounds of O- linking groups and there is no-CF2The liquid-crystal compounds phase of O- linking groups
Than building-up process is long, and manufacturing cost is high.In addition, having-CF2The liquid-crystal compounds of O- linking groups and there is no-CF2O- linkers
The liquid-crystal compounds of group is compared, and low-temperature stability is high.
In one embodiment of the invention, even if not comprising having-CF2The liquid-crystal compounds of O- linking groups also meets
State characteristic required in table 1 and low-temperature stability.
In the liquid-crystal composition of one embodiment of the invention, above-mentioned polyphenylene system liquid-crystal compounds can further include
Third liquid-crystal compounds represented by following chemical formula 3.
[chemical formula 3]
Here, R3It can be replaced by fluorine for the alkyl and arbitrary hydrogen of carbon atom number 1 to 10, X3For-F ,-Cl, carbon atom number
1 to 10 alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L7To L10It independently is hydrogen or fluorine, but excludes L9And L10
For hydrogen the case where.
Above-mentioned third liquid-crystal compounds has high refractive index anisotropy and high dielectric normal as the first liquid-crystal composition
Number anisotropy.The dielectric constant anisotropy of above-mentioned third liquid-crystal compounds is -2 to+40, with above-mentioned first liquid-crystal composition
Dielectric constant anisotropy compare, high 2~5 times of dielectric constant anisotropy or more.The refraction of above-mentioned third liquid-crystal compounds
Rate anisotropy is about 0.1 to about 0.3.An embodiment according to the present invention, above-mentioned R3 do not contain alkenyl.In above-mentioned third liquid crystal
In the case that compound contains alkenyl, it can be easy to generate ionic substance because the reactivity of above-mentioned alkenyl is high, it is thereby possible to send out
Life is bad as caused by above-mentioned ionic substance.
Relative to whole 100 parts by weight of liquid-crystal composition, above-mentioned third liquid-crystal compounds can include about 2 parts by weight to about
30 parts by weight, the value are the values of low-temperature stability for considering above-mentioned liquid-crystal composition etc..In one embodiment of the invention, relatively
In whole 100 parts by weight of liquid-crystal composition, above-mentioned third liquid-crystal compounds can include 5 parts by weight to 26 parts by weight.
Above-mentioned third liquid-crystal compounds can include following chemical formula 3-1 to 3-3 represented by liquid-crystal compounds in extremely
Few one kind can include specifically two kinds.
[chemical formula 3-1]
[chemical formula 3-2]
[chemical formula 3-3]
Above-mentioned liquid-crystal composition include chemical formula 3-1 to 3-3 liquid-crystal compounds in it is two or more in the case of,
It is middle it is a kind of can be chemical formula 3-2 liquid-crystal compounds.For example, above-mentioned liquid-crystal composition can include the liquid crystal of chemical formula 3-1
The liquid-crystal compounds of compound and chemical formula 3-2, or can include the liquid-crystal compounds and chemical formula 3-2 of chemical formula 3-3
Liquid-crystal compounds.The liquid-crystal compounds of chemical formula 3-2 can be such that the low-temperature stability of liquid-crystal composition and rotary viscosity characteristic carries
It is high.Specifically, in the case where the liquid-crystal compounds of the liquid-crystal compounds of chemical formula 3-2 and chemical formula 3-1 is used together, energy
Enough improve the low-temperature stability of liquid-crystal composition, it, can in the case where the liquid-crystal compounds with chemical formula 3-3 is used together
The rotary viscosity characteristic of liquid-crystal composition is set to improve.
The liquid-crystal composition of one embodiment of the invention can further include the low-temperature stability for improving mixture
The liquid-crystal compounds with 2 ring structures.Above-mentioned liquid-crystal compounds can further include represented by following chemical formula 4
Four liquid-crystal compounds.
[chemical formula 4]
Here, R4It can be taken by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen
Generation, X4It can be with for-F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen
Replaced by fluorine, Z1For singly-bound ,-C ≡ C- ,-COO- ,-OCO- ,-CH2O-、-(CH2)2Or-CH=CH-, ring A are Isosorbide-5-Nitrae-Asia ring
Hexyl or 1,4- phenylenes.In one embodiment of the invention, using liquid-crystal compounds represented by a kind of chemical formula 4 the case where
Under, ring A is cyclohexylidene, and using two or more, the ring A of one of which can be cyclohexylidene, another
Ring A can be phenylene.
Above-mentioned 4th liquid-crystal compounds can be with about -2 to about+2 dielectric constant anisotropy and about 0.04 to about
0.10 refractive anisotrop.
Above-mentioned 4th liquid-crystal compounds can show nematic phase at normal temperatures.Above-mentioned 4th liquid-crystal compounds is that low temperature is steady
Qualitative good substance, especially by with other liquid crystal compounds, particularly by above-mentioned first liquid-crystal compounds and above-mentioned
The mixing of four liquid-crystal compounds, to improve the low-temperature stability of liquid-crystal composition.
In addition, above-mentioned 4th liquid-crystal compounds compared with other liquid-crystal compounds, has relatively low viscosity and refractive index,
According to its content, the refractive anisotrop of above-mentioned first liquid-crystal compounds and above-mentioned third liquid-crystal compounds can be adjusted to
Suitable degree.
In view of the low-temperature stability and refractive anisotrop of liquid-crystal composition entirety, relative to liquid-crystal composition entirety
100 parts by weight, above-mentioned 4th liquid-crystal compounds can contain about 20 parts by weight to 55 parts by weight.In one embodiment of the invention,
Relative to whole 100 parts by weight of liquid-crystal composition, above-mentioned 4th liquid-crystal compounds can contain about 37 parts by weight to 51.6 weight
Part.
In one embodiment of the invention, above-mentioned 4th liquid-crystal compounds can include following chemical formula 4-1 to chemical formula 4-3
At least one of represented liquid-crystal compounds can include specifically two or more.
[chemical formula 4-1]
[chemical formula 4-2]
[chemical formula 4-3]
Above-mentioned liquid-crystal composition include chemical formula 4-1 to 4-3 liquid-crystal compounds in it is two or more in the case of, can
With the liquid-crystal compounds comprising chemical formula 4-1 and chemical formula 4-2.The liquid-crystal compounds of chemical formula 4-1 is low viscosity, can make rotation
Viscosity characteristics improve, and the clearing point of the liquid-crystal compounds of chemical formula 4-2 is high, therefore include both liquid-crystal compounds at the same time
In the case of, liquid-crystal composition can have suitable viscosity and clearing point.
The liquid-crystal composition of one embodiment of the invention can further include heat or light for maintaining liquid-crystal composition
The additive of stability (especially ultraviolet light).Above-mentioned additive can be hindered amine system additive and/or phenol system additive.
In the case where above-mentioned additive is above-mentioned phenol system additive, above-mentioned phenol system additive can be following chemical formula 5
Or the substance represented by chemical formula 6.
[chemical formula 5]
[chemical formula 6]
Can include following chemical formula 8 and following chemical formula 8 in the case where above-mentioned additive is to be obstructed amine system additive
At least one of represented additive.
[chemical formula 7]
[chemical formula 8]
In above-mentioned formula, R6、R7And R8Independently indicate the alkyl of hydrogen, oxygen or carbon atom number 1 to 15, at this point, more than one
- CH2Group respectively independently of one another can be in such a way that O atom be not directly connected each other by-C ≡ C- ,-CF2O-、-CH
=CH- ,-O- ,-CO-O- ,-O-CO- or-O-CO-O- substitutions, 1 to 3 hydrogen atom can be optionally substituted by halogen, and m is that 1 to 12, p is
0 to 12.
The liquid-crystal compounds, outstanding that above-mentioned additive prevents in the manufacturing process of liquid crystal display device or may occur later
It is the oxidation of alkenyl liquid-crystal compounds or alkoxy liquid-crystal compounds, in addition to above-mentioned alkenyl liquid-crystal compounds, alkoxy liquid crystal
Other than compound, the oxidation with the liquid crystal of functional group with high reactivity is also prevented.The derivative of above-mentioned additive refers to upper
Stating additive prevents the intermediate generated as by-product during the oxidation of above-mentioned liquid-crystal compounds or result object etc..
Specifically, in the case where driving liquid crystal display device, when applying the energy such as heat or ultraviolet light to liquid crystal, liquid
Selfdecomposition or reaction can occur in liquid-crystal composition for brilliant compound, decomposite the liquid crystal for being different from and in liquid-crystal composition being included
Other substances, so as to generate free radicals.Above-mentioned free radical can with hyperergic reactive group, such as alkenyl
And/or the liquid-crystal compounds of alkoxy reacts and forms ionic impurity.Pass through the ionic impurity that above-mentioned side reaction generates
It can be accumulated in the boundary portion of picture pattern when image is formed, as a result, there may be the defects of ghost etc.
In one embodiment of the invention, due to comprising the free radical that can be generated with the result as above-mentioned side reaction or
The additive of ionic reaction, therefore prevent the defect as caused by above-mentioned ionic impurity, such as ghost.That is, above-mentioned additive hair
The effect for waving H donors (doner) or free radical scavenger, thus prevents other liquid crystal and above-mentioned free radical or ionic reaction.Example
Such as, above-mentioned additive is when generating the unstable free free radical of peroxide radical etc, above-mentioned additive with it is above-mentioned
Peroxide radical reacts, the free chain reaction not added with other liquid crystal molecules etc. so as to it.Above-mentioned addition
Agent by with derivative that above-mentioned additive is modified to by above-mentioned reacting for free radical.
Relative to whole 100 parts by weight of liquid-crystal composition, above-mentioned additive can be set as about 0.01 to about 0.05 parts by weight.
Above-mentioned additive be below about 0.01 parts by weight in the case of, it is difficult to embody effect anti-oxidant or as light stabilizer, more than
In the case of about 0.05 parts by weight, side reaction may be caused with the liquid-crystal compounds etc. in liquid-crystal composition.
In one embodiment of the invention, above-mentioned phenol system additive can be the compound represented by following chemical formula 5-1.
[chemical formula 5-1]
In one embodiment of the invention, for adjusting when above-mentioned liquid-crystal composition can be further contained in Liquid Crystal Molecules Alignment
Internode away from spacing conditioning agent.Above-mentioned spacing conditioning agent can use various compounds, such as can be following chemistry
Compound represented by formula 9.
[compound 9]
The liquid-crystal composition of one embodiment of the invention can also further include other than above-mentioned liquid-crystal compounds
Additional liquid-crystal compounds.
In one embodiment of the invention, above-mentioned liquid-crystal composition can further include the liquid represented by following chemical formula 10
At least one of brilliant compound.
[chemical formula 10]
R10It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, ring
A is 1 or 4 cyclohexylidene, may replace Isosorbide-5-Nitrae-phenylene there are one the above F, X5For-F ,-Cl ,-OCF3, carbon atom number 1 to 10
Alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L11To L12It independently is hydrogen or fluorine.
In one embodiment of the invention, X5Can be fluorine or the substituent group containing fluorine, for example,-F ,-OCF3.In addition, L11Extremely
L12Can be-F.In one embodiment of the invention, in X5For substituent group or X containing fluorine5For fluorine and L11And L12In at least one
It is a in the case of F, dielectric constant anisotropy increases, rotary viscosity may change.In L11And L12In the case of being F, tool
There is the effective effect of adjusting for the dielectric constant anisotropy and rotary viscosity of liquid-crystal composition.
Liquid-crystal compounds represented by chemical formula 10 is for adjusting refractive anisotrop, dielectric in a liquid crystal composition
The liquid crystal of constant anisotropy, clearing point, rotary viscosity can be set as about 3 relative to whole 100 parts by weight of liquid-crystal composition
Parts by weight are to about 70 parts by weight.In one embodiment of the invention, the liquid-crystal compounds represented by chemical formula 10 is relative to liquid crystal group
Whole 100 parts by weight of object are closed, about 12 parts by weight or more and about 51 parts by weight or less can be set as.In this case, folding can be made
Penetrate 0.100 or more rate anisotropy, 3.0 or more dielectric constant anisotropy, 70 degree of clearing point or more, 100 or less rotary viscosity
Liquid-crystal composition.
In one embodiment of the invention, above-mentioned 10th liquid-crystal compounds can include following chemical formula 10-1 to 10-5 institutes table
The liquid-crystal compounds shown.
[chemical formula 10-1]
[chemical formula 10-2]
[chemical formula 10-3]
[chemical formula 10-4]
[chemical formula 10-5]
Liquid-crystal compounds represented by above-mentioned chemical formula 10-1 to chemical formula 10-5 can be comprising following chemical formula 10-A extremely
At least one of the compound of chemical formula 10-I.
[chemical formula 10-A]
[chemical formula 10-B]
[chemical formula 10-C]
[chemical formula 10-D]
[chemical formula 10-E]
[chemical formula 10-F]
[chemical formula 10-G]
[chemical formula 10-H]
[chemical formula 10-I]
The liquid-crystal composition of one embodiment of the invention can be applied to the liquid crystal layer of liquid crystal display device.Hereinafter, reference
Attached drawing illustrates.
Fig. 1 is the schematic block diagram of the liquid crystal display device of the embodiment of the present invention.
Referring to Fig.1, the liquid crystal display device of the embodiment of the present invention include display panel (PNL), sequence controller (TC),
Gate drivers (GDV) and data driver (DDV).
Above-mentioned display panel (PNL) can be to include first substrate, second substrate and the liquid crystal being configured between two substrates
The liquid crystal display panel of layer.
Above-mentioned display panel (PNL) includes (D1 in a first direction；Such as line direction) on multiple grid line (GL1 for extending
~GLm) and in the second direction (D2 intersected with above-mentioned first direction (D1)；Such as column direction) on multiple data lines for extending
(DL1~DLn).Above-mentioned display panel (PNL) can include multiple pixels (PX).Above-mentioned multiple pixels (PX) can be according to above-mentioned
First direction (D1) and above-mentioned second direction (D2) arrangement.
Above-mentioned sequence controller (TC) is believed from external Graph Control portion reception image data (RGB) (not shown) and control
Number.Above-mentioned control signal may include：As the vertical synchronizing signal (Vsync) of frame identification signal, as row identification signal
Horizontal synchronizing signal (Hsync) in order to indicate the region that data enter only is high (HIGH) horizontal in the section of output data
Data enable signal (DES) and master clock signal (MCLK).
Above-mentioned sequence controller (TC) transformation above-mentioned image data (RGB) complies with above-mentioned data driver (DDV)
Specification, and by the image data converted (DATA) to above-mentioned data driver (DDV) export.Above-mentioned sequence controller (TC)
Grid control signal (GS1) and data controlling signal (DS1) are generated according to above-mentioned control signal.Above-mentioned sequence controller (TC) will
Above-mentioned grid control signal (GS1) output is to above-mentioned gate drivers (GDV), extremely by above-mentioned data controlling signal (DS1) output
Above-mentioned data driver (DDV).Above-mentioned grid control signal (GS1) is the signal for driving above-mentioned gate drivers (GDV),
Above-mentioned data controlling signal (DS1) is the signal for driving above-mentioned data driver (DDV).
Above-mentioned gate drivers (GDV) are based on above-mentioned grid control signal (GS1) and generate grid signal, and by above-mentioned grid
Pole signal is exported to above-mentioned grid line (GL1~GLm).Above-mentioned grid control signal (GS1) may include：Indicate scanning starting
It scans initial signal and controls at least one clock signal in the output period of gate-on voltage and limit gate turn-on electricity
Output enable signal of the duration of pressure etc..
Above-mentioned data driver (DDV) is generated based on above-mentioned data controlling signal (DS1) and above-mentioned image data
(DATA) relevant gray scale voltage, and exported to above-mentioned data line (DL1~DLn) as data voltage.Above-mentioned data electricity
Pressure may include the positive polarity data voltage relative to shared voltage with positive value and the negative polarity data voltage with negative value.On
Stating data controlling signal (DS1) may include：What prompt image data (DATA) started to transmit to above-mentioned data driver (DDV)
Horizontal initial signal (STH), order data voltage are applied to the load signal of above-mentioned data line (DL1~DLn) and relative to altogether
Make the reverse signal etc. that the polarity of data voltage inverts with voltage.
Above-mentioned sequence controller (TC), above-mentioned gate drivers (GDV) and above-mentioned data driver (DDV) respectively can be as
Lower installation：Above-mentioned display panel (PNL) is directly mounted in the form of at least one IC chip；It is installed on flexible printing
In circuit board (flexible printed circuit board) and with TCP (tape carrier package (band load envelopes
Dress)) form be attached to above-mentioned display panel (PNL)；Or it is installed on different printed circuit boards (printed circuit
Board on).Unlike this, at least one of above-mentioned gate drivers (GDV) and above-mentioned data driver (DDV) can also
It is integrated in above-mentioned display panel with together with above-mentioned grid line (GL1~GLm), above-mentioned data line (DL1~DLn) and above-mentioned transistor
(PNL).In addition, above-mentioned sequence controller (TC), above-mentioned gate drivers (GDV) and above-mentioned data driver (DDV) are according to list
One chip integrates.
Fig. 2 is the vertical view for showing illustrated pixel in Fig. 1, and Fig. 3 is the sectional view of the I-I' lines along Fig. 2.
With reference to Fig. 2 and Fig. 3, the liquid crystal display device of one embodiment of the invention can include multiple pixels of display image
(PX).In Fig. 2, one in multiple pixels is typically illustrated.Remaining pixel is due to the structure with above-mentioned diagram
Substantially the same structure, therefore will not separately illustrate.
Above-mentioned pixel (PX) is set between the data line being arranged in order according to above-mentioned first direction (D1) and adjacent to each other
Grid line between.In the present embodiment, for convenience of description, the grid line that a pixel is connected is known as grid line (GL) simultaneously
The data line that above-mentioned pixel is connected is known as the first data line to illustrate.
Above-mentioned pixel (PX) connect with transistor (TR), above-mentioned transistor (TR) and above-mentioned grid line (GL) and above-mentioned data
Line (GL) connects.
Above-mentioned liquid crystal display device includes first substrate (SUB1) and the opposite second substrate of above-mentioned first substrate (SUB1)
(SUB2) and between above-mentioned first substrate (SUB1) and above-mentioned second substrate (SUB2) liquid crystal layer (LC) formed.
Above-mentioned first substrate (SUB1) includes the wiring part being set on first foundation substrate (BS1), connects with above-mentioned wiring part
The transistor (TR) that connects, the pixel electrode (PE) being connect with above-mentioned transistor (TR) and be separated by with pixel electrodes (PE) and
The common electrode (CE) of insulation.
First foundation substrate (BS1) substantially has quadrangle, is formed by transparent insulation substance.
Above-mentioned wiring part includes grid line (GL) and data line (GL).
Above-mentioned grid line (GL) extends according to first direction (D1) on above-mentioned first foundation substrate (BS1) and is formed.
Gate insulating film (GI) is equipped on the above-mentioned first foundation substrate (BS1) for be formed with above-mentioned grid line (GL).On
Stating gate insulating film (GI) can be formed by megohmite insulant, for example, can include silicon nitride, Si oxide.
Above-mentioned data line (GL) is placed between above-mentioned grid line (GL) and above-mentioned gate insulating film (GI), and according to it is above-mentioned
The second direction (D2) that first direction (D1) intersects extends and sets.
Above-mentioned transistor (TR) connect with above-mentioned grid line (GL) and above-mentioned data line (GL).Referring to Fig.1, for whole pictures
For element, above-mentioned grid line, above-mentioned data line and transistor be respectively equipped with it is multiple, each transistor with it is corresponding in multiple grid lines
One and multiple data lines in it is corresponding one connection.Above-mentioned transistor (TR) includes gate electrode (GE), semiconductor pattern
(SM), source electrode (SE) and drain electrode (DE).
Referring again to Fig. 2 and Fig. 3, above-mentioned transistor (TR) includes gate electrode (GE), semiconductor pattern (SM), source electrode
(SE) and drain electrode (DE).
Above-mentioned gate electrode (GE) is from the prominent or a part of region set on above-mentioned grid line (GL) of above-mentioned grid line (GL).
Above-mentioned gate electrode (GE) can be formed by metal.Above-mentioned gate electrode (GE) can be by nickel, chromium, molybdenum, aluminium, titanium, copper, tungsten
It is formed with their alloy.Above-mentioned gate electrode (GE) can be formed as the monofilm or multilayer film using above-mentioned metal.On for example,
It can be duplicature made of trilamellar membrane or titanium and copper made of molybdenum, aluminium and molybdenum stack gradually stack gradually to state gate electrode (GE).
Or can be the monofilm formed by the alloy of titanium and copper.
Above-mentioned semiconductor pattern (SM) is set on above-mentioned gate insulating film (GI).Above-mentioned semiconductor pattern (SM) is across grid
Insulating film (GI) and on the above-mentioned gate electrode (GE).A part of region of above-mentioned semiconductor pattern (SM) and above-mentioned gate electrode
(GE) it is overlapped.Above-mentioned semiconductor pattern (SM) can be formed by amorphous silicon thin-film or oxide semiconductor thin-film.
Above-mentioned source electrode (SE) sets from above-mentioned data line (DL) branch.Above-mentioned source electrode (SE) is formed in semiconductor pattern
(SM) on, and a part of region is Chong Die with above-mentioned gate electrode (GE).
Above-mentioned drain electrode (DE) is separated by with above-mentioned source electrode (SE) across above-mentioned semiconductor pattern (SM) and is set.Above-mentioned electric leakage
Pole (DE) is formed on above-mentioned semiconductor pattern (SM), and a part of region is Chong Die with above-mentioned gate electrode (GE) and sets.
Above-mentioned source electrode (SE) and above-mentioned drain electrode (DE) can by nickel, chromium, molybdenum, aluminium, titanium, copper, tungsten and comprising they
Alloy is formed.Above-mentioned source electrode (SE) and above-mentioned drain electrode (DE) can be formed as the monofilm or multilayer using above-mentioned metal
Film.For example, above-mentioned source electrode (SE) and above-mentioned drain electrode (DE) can be titanium and copper stack gradually made of duplicature.Or it can
With the monofilm to be formed by the alloy of titanium and copper.
By making above-mentioned source electrode (SE) and above-mentioned drain electrode (DE) be separated by, to above-mentioned source electrode (SE) and above-mentioned
Expose the upper surface of above-mentioned semiconductor pattern (SM) between drain electrode (DE).Above-mentioned source electrode (SE) and above-mentioned drain electrode (DE)
Between above-mentioned semiconductor pattern (SM) whether applied according to the voltage of above-mentioned gate electrode (GE) and in above-mentioned source electrode (SE) and
Conductive channel (conductive channel) is formed between above-mentioned drain electrode (DE).
Above-mentioned source electrode (SE) and above-mentioned drain electrode (DE) are equipped with interlayer film (IL).Above-mentioned interlayer film (IL) is by insulating properties
Substance is formed, for example, can include silicon nitride or Si oxide.
Above-mentioned interlayer film (IL) is equipped with protective film (PSV).Said protection film (PSV) can include for example silicon nitride or
Si oxide.
Above-mentioned interlayer film (IL) and said protection film (PSV) are equipped with a part for the upper surface for making above-mentioned drain electrode (DE)
The contact hole (CH) of exposing.
Pixel electrodes (PE) are set in said protection film (PSV), pass through above-mentioned contact hole (CH) and above-mentioned drain electrode
(DE) it connects.Pixel electrodes (PE) can have multiple branches.Above-mentioned branch can be separated by certain intervals each other, can be with
Electric field is formed together with above-mentioned common electrode (CE).It's not limited to that for the shape of above-mentioned branch, can be set as diversified
Shape.
Above-mentioned common electrode (CE) can be set between above-mentioned interlayer film (IL) and said protection film (PSV).It is above-mentioned to share
Electrode (CE) can by entire surface be formed in the way of all covering pixel region.The shape of above-mentioned common electrode (CE) is not
It is defined in this, as long as can be connected to each other in pixel areas adjacent to each other and apply identical shared voltage, so that it may to be set as
Other shapes.Here, the region for being equipped with above-mentioned contact hole (CH) has the opening portion for eliminating above-mentioned common electrode (CE), above-mentioned
Common electrode (CE) and pixel electrodes (PE) insulate across said protection film (PSV).Above-mentioned common electrode (CE) and upper
It states pixel electrode (PE) and said protection film (PSV) forms the storage capacitance (Cst) of each pixel.
Pixel electrodes (PE) and above-mentioned common electrode (CE) are formed by transparent conductive material.Pixel electrodes
(PE) it can be formed by transparent conductive oxides (Transparent Conductive Oxide).Above-mentioned transparent conductivity oxygen
Compound has ITO (indium tin oxide (tin indium oxide)), IZO (indium zinc oxide (indium zinc oxide)), ITZO
(indium tin zinc oxide (indium tin zinc oxide)) etc..
Above-mentioned second substrate (SUB2) is opposite with above-mentioned first substrate (SUB1) and sets.Above-mentioned second substrate (SUB2) can be with
Including the second base substrate (BS2), colour filter (CF) and black matrix (BM).
Each colour filter (CF) can be displayed in red, green and blue.On the other hand, it's not limited to that, can also show
The diversified color such as white, yellow, cyan, magenta.
Above-mentioned black matrix (BM) is formed between above-mentioned colour filter (CF), is blocked between adjacent pixel through above-mentioned liquid
The light of crystal layer (LC).In one embodiment of the invention, although illustrating above-mentioned colour filter (CF) is set to above-mentioned second substrate
(SUB2) the case where, but not limited to this, in other embodiments, can also be set on above-mentioned first substrate (SUB1).
In one embodiment of the invention, pixel electrodes (PE), above-mentioned common electrode (CE) and above-mentioned liquid crystal layer (LC)
Constitute pixel (PX).Above-mentioned pixel (PX) drives by above-mentioned transistor (TR).That is, if above-mentioned transistor (TR1) for
The grid signal provided by above-mentioned grid line (GL) is responded and is connected, then the data provided by above-mentioned data line (GL)
Voltage can be exported by the transistor (TR1) of above-mentioned conducting to pixel electrodes (PE).It is being applied with above-mentioned data electricity as a result,
Electric field is formed between the pixel electrodes (PE) and the above-mentioned common electrode (CE) for being applied with shared voltage of pressure.Pass through above-mentioned electricity
, the liquid crystal molecule of liquid crystal layer (LC) is driven, as a result, showing image according to the light quantity through above-mentioned liquid crystal layer (LC).
Above-mentioned liquid crystal layer (LC) includes the liquid-crystal composition of above-mentioned one embodiment of the invention.
In the present embodiment, above-mentioned common electrode can be whole face, and pixel electrodes can have branch, above-mentioned liquid crystal
Showing device can pass through PLS (plane-to-line switching (upper thread conversion)) mode activated.But above-mentioned pixel electricity
It's not limited to that for the shape and its drive mode of pole or common electrode.For example, above-mentioned common electrode can also form multiple points
Branch.In this case, the branch of pixel electrodes and the branch of above-mentioned common electrode in the plane can be alternating with each other configure
And pass through IPS (plane conversion) mode activated.In addition, without departing from the theory of the present invention, the knot of above-mentioned liquid crystal display device
Structure ought to can have other patterns other than above-mentioned PLS patterns or IPS patterns.
Embodiment
In the present invention, the single liquid-crystal compounds labeling method of embodiment and comparative example is as described in Table 2.
[table 2]
Here, it is indicated without other between central group and linking group, center/linking group is logical with end group
"-" is crossed to distinguish.End is distinguished with end by " ", and end is recorded in finally.The example of above-mentioned labeling method is as follows.
The physical property of comparative example and the embodiment of the present invention is measured by following methods.
1) clearing point
Test piece is placed in the mechanism with thermoregulator, temperature is increased with the speed of 3 DEG C/min on one side, observation is clear on one side
Bright spot.
2) dielectric constant anisotropy
After being mixed into the liquid-crystal composition of embodiment and comparative example in 4 μm of levels, vertical test piece, asked at 1kHz, 0.3V
Go out horizontal, vertical dielectric constant, horizontal dielectric constant is subtracted from vertical dielectric constant, to which dielectric constant when acquiring 20 degree is each
Anisotropy.
3) refractive anisotrop
Be measured using Abbe refractometer (ABBE REFRACTOMETER) in 589nm, using lecithin make liquid crystal with
Vertical orientation, refractive anisotrop when acquiring 20 degree.
4) low-temperature stability
Liquid crystal 2mL is instilled in 10mL bottles and after closeing the lid, 10 days liquid crystalline phases are observed as unit of -25 degree were by 1 day.It closes
It is marked in low-temperature stability, when crystallization is precipitated, marks the number of days observed, in addition, until when still maintaining liquid crystalline phase within 50 days, seeing
Examine label after number of days " more than ".
5)VHR(Voltage holding ratio；Voltage retention)
By electrode and form horizontal alignment film 2 substrates engaged in a manner of the box gap with 4 μm after, injection
Liquid-crystal composition manufactures liquid crystal cell, is then heated 3 days at 100 DEG C.The liquid crystal cell is applied 1V's at 100 DEG C with the intervals 60us
Voltage measures the voltage retention (VHR) of liquid crystal cell according to 60Hz units.
6) rotary viscosity
At 20 DEG C, dielectric constant anisotropy when according to 20 DEG C of 90V/20us condition entries and be measured.
1. low-temperature stability evaluates I
The low-temperature stability for the liquid-crystal composition with ingredient different from each other is shown in following Table 3.In following Table 3
Each numerical value indicate parts by weight.
[table 3]
With reference to table 3, it is known that in the case of liquid-crystal composition 1 and liquid-crystal composition 2 without the second liquid-crystal compounds, low temperature
Stability is excessively poor, and in the case that the second liquid-crystal compounds is 2 weight % or more, low-temperature stability is 13 days and 50 days or more,
Improve very more.In addition, comparing liquid-crystal composition 3 and liquid-crystal composition 4, low-temperature stability is with third liquid-crystal compounds
The change of amount and change, third liquid-crystal compounds be 25 weight % or less when, show better low-temperature stability.
2. evaluation of physical property such as low-temperature stabilities
Following table 4 to table 9 is according to-CF2The liquid-crystal compounds of O- linking groups evaluates liquid crystal whether including
The result of physical property.The comparative example 1 of table 4 and the comparative example 2 of table 5 are for comprising with-CF2The liquid-crystal compounds of O- linking groups
Liquid-crystal composition evaluation result, the embodiment of table 6 to table 9 is for comprising not having-CF2The LCD compound of O- linking groups
The evaluation result of the liquid-crystal composition of object.
2.1 comparative examples 1
[table 4]
| Code | Content (weight, g) |
| ACA-2.3 | 4.1 |
| ACA-3.3 | 1.7 |
| ACA-3.F | 2.8 |
| BBCE-3.F | 2.8 |
| BB-3.V | 36 |
| AEXE-2.F | 7 |
| AEXE-3.F | 7.6 |
| BB-3.U1 | 1.9 |
| BAA-3.2 | 6.3 |
| BAA-5.2 | 5.7 |
| BAA-3.F | 6.6 |
| BAC-3.F | 2.5 |
| BAE-3.F | 12.3 |
| BBAC-3.F | 2.8 |
| Low-temperature stability (- 25 DEG C) | 30 days or more OK |
| Tni(℃) | 78.2 |
| Δn | 0.1184 |
| Δε | 5.6 |
| Rotary viscosity (mPas) | 56 |
2.2 comparative examples 2
[table 5]
| Code | Content (weight, g) |
| ACA-2.3 | 2.5 |
| ACA-3.F | 6.5 |
| BBCE-3.F | 2.7 |
| BBAE-3.F | 2.2 |
| ACE-2.F | 5.5 |
| ACE-3.F | 5.5 |
| BB-3.V | 29.4 |
| BB-3.U1 | 15.3 |
| AEXE-2.F | 3.3 |
| AEXE-3.F | 7.1 |
| BAA-3.2 | 6 |
| BAC-3.F | 4.4 |
| BBA-3.OCF3 | 6.5 |
| AANA-4.F | 3.3 |
| Low-temperature stability | 30 days or more |
| (-25℃) | OK |
| Tni(℃) | 76.5 |
| Δn | 0.1185 |
| Δε | 5.3 |
| Rotary viscosity (mPas) | 58 |
2.3 embodiments 1
[table 6]
| Code | Content (weight, g) |
| ACA-3.F | 11.6 |
| BBCE-3.F | 2.2 |
| ACE-3.F | 9.3 |
| ACE-5.F | 7.4 |
| BB-3.V | 39.9 |
| BB-3.U1 | 6.9 |
| BAA-3.2 | 4.8 |
| BAA-5.2 | 2.2 |
| BAE-3.F | 7.1 |
| BBA-3.OCF3 | 6.5 |
| BBAE-3.F | 2.1 |
| Low-temperature stability (- 25 DEG C) | 30 days or more OK |
| Tni(℃) | 75.2 |
| Δn | 0.1185 |
| Δε | 5.4 |
| Rotary viscosity (mPas) | 58 |
2.4 embodiments 2
[table 7]
| Code | Content (weight, g) |
| ACA-3.F | 11.6 |
| BBCE-3.F | 2.3 |
| ACE-3.F | 8.3 |
| ACE-5.F | 8.4 |
| BB-3.V | 39.9 |
| BB-3.U1 | 6.9 |
| BAA-3.2 | 4.7 |
| BAA-5.2 | 2.0 |
| BAE-3.F | 7.1 |
| BBA-3.OCF3 | 6.8 |
| BBAE-3.F | 2.0 |
| Low-temperature stability (- 25 DEG C) | 30 days or more OK |
| Tni(℃) | 75.0 |
| Δn | 0.1187 |
| Δε | 5.5 |
| Rotary viscosity (mPas) | 56 |
2.5 embodiments 3
[table 8]
| Code | Content (weight, g) |
| ACA-2.F | 6.3 |
| ACA-3.F | 5.3 |
| BBCE-3.F | 2.2 |
| ACE-2.F | 3.6 |
| ACE-3.F | 7.7 |
| ACE-5.F | 5.4 |
| BB-3.V | 39.9 |
| BB-3.U1 | 6.9 |
| BAA-3.2 | 4.8 |
| BAA-5.2 | 2.2 |
| BAE-3.F | 7.1 |
| BBA-3.OCF3 | 6.5 |
| BBAE-3.F | 2.1 |
| Low-temperature stability (- 25 DEG C) | 30 days or more OK |
| Tni(℃) | 76.0 |
| Δn | 0.118 |
| Δε | 5.3 |
| Rotary viscosity (mPas) | 53 |
2.6. embodiment 4
[table 9]
| Code | Content (weight, g) |
| ACA-2.F | 6.3 |
| ACA-3.F | 5.3 |
| BBCE-3.F | 2.3 |
| ACE-2.F | 4.6 |
| ACE-3.F | 8.3 |
| ACE-5.F | 3.8 |
| BB-3.V | 39.9 |
| BB-3.U1 | 6.9 |
| BAA-3.2 | 4.7 |
| BAA-5.2 | 2.0 |
| BAE-3.F | 7.1 |
| BBA-3.OCF3 | 6.8 |
| BBAE-3.F | 2.0 |
| Low-temperature stability (- 25 DEG C) | 30 days or more OK |
| Tni(℃) | 75.0 |
| Δn | 0.1187 |
| Δε | 5.4 |
| Rotary viscosity (mPas) | 54 |
2.7 brief summary
Above-mentioned comparative example 1 and comparative example 2 and embodiment 1 to 4 are observed, can be confirmed without with-CF2O- linking groups
Liquid-crystal compounds embodiment 1 to 4 liquid-crystal composition with comprising with-CF2The ratio of the liquid-crystal compounds of O- linking groups
There is substantially the same physical property compared with example 1 and comparative example 2.Therefore, even if removing the high-CF of price2O- linking group liquid crystal, packet
Composition containing all the first, second, third and fourth liquid-crystal compounds can also obtain excellent physical property.
3. low temperature and Evaluation of Thermal Stability
Following table 10 to table 19 be according to the second liquid-crystal compounds and antioxidant comprising whether and liquid is evaluated by VHR
The low-temperature stability of crystal composite and the result of thermal stability.The comparative example 1 and 2 of table 10 and table 11 is for without the second liquid crystal
The evaluation result of the liquid-crystal composition of compound and antioxidant, the embodiment of table 12 to table 19 are liquid-crystalized for comprising second
Close the evaluation result of the liquid-crystal composition of object and antioxidant.
3.1 comparative examples 1
[table 10]
| Code | Content (weight, g) |
| ACA-2.3 | 3.1 |
| ACA-2.4 | 2.9 |
| ACA-3.3 | 4.9 |
| ACA-3.F | 4.1 |
| ACA-5.F | 3.9 |
| ACE-2.F | 3.5 |
| ACE-3.F | 4.9 |
| BB-3.V | 35.5 |
| BB-3.U1 | 7.3 |
| BA-3.O2 | 7.3 |
| BBA-V.1 | 8.2 |
| BBA-3.OCF3 | 10.0 |
| Low-temperature stability (- 25 degree) | 1 day NG |
| VHR (60 degree) | 97.3 |
| VHR (100 degree) | 79.4 |
| Tni(℃) | 80.1 |
| Δn | 0.1167 |
| Δε | 3.2 |
3.2 comparative examples 2
[table 11]
| Code | Content (weight, g) |
| ACA-2.3 | 3.0 |
| ACA-3.3 | 2.0 |
| ACE-2.F | 6.0 |
| ACE-3.F | 10.0 |
| ACE-5.F | 10.0 |
| BB-3.V | 36.0 |
| BB-3.U1 | 9.0 |
| BAA-3.2 | 3.5 |
| BAA-5.2 | 3.3 |
| BBA-V.1 | 4.1 |
| BBA-3.OCF3 | 3.6 |
| BBE-3.F | 5.5 |
| BAE-3.F | 4.0 |
| Low-temperature stability (- 25 degree) | 1 day NG |
| VHR (60 degree) | 97.5 |
| VHR (100 degree) | 80.4 |
| Clearing point | 70.7 |
| Refractive anisotrop | 0.1170 |
| Dielectric constant anisotropy | 5.2 |
3.3 embodiments 1
[table 12]
| Code | Content (weight, g) |
| ACA-2.3 | 5.6 |
| ACA-2.4 | 5.6 |
| ACA-3.3 | 5.6 |
| BBCE-3.F | 3.0 |
| ACE-3.F | 3.7 |
| ACE-5,F | 4.0 |
| BB-3.V | 35.5 |
| BB-3.U1 | 7.8 |
| BA-3.O2 | 7.8 |
| BBA-V.1 | 9.1 |
| BBA-3.OCF3 | 5.6 |
| BBC-3=2.F | 3.0 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 98.8 |
| VHR (100 degree) | 88.2 |
| Tni(℃) | 80.4 |
| Δn | 0.1164 |
| Δε | 3.1 |
3.4 embodiments 2
[table 13]
| Code | Content (weight, g) |
| ACA-2.3 | 5.2 |
| ACA-2.4 | 5.2 |
| ACA-3.3 | 5.2 |
| BBCE-3.F | 3.0 |
| ACE-3.F | 5.2 |
| ACE-5,F | 5.2 |
| BB-3.V | 27.2 |
| BB-3.U1 | 8.8 |
| BA-3.O2 | 15.6 |
| BBA-V.1 | 3.4 |
| BBA-3.1 | 7.2 |
| BBA-3.OCF3 | 5.8 |
| BBAE-3.F | 3.0 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 98.9 |
| VHR (100 degree) | 89.1 |
| Tni(℃) | 83.9 |
| Δn | 0.1181 |
| Δε | 3.1 |
3.5 embodiments 3
[table 14]
| Code | Content (weight, g) |
| ACA-2.3 | 4.1 |
| ACA-2.4 | 4.6 |
| ACA-3.3 | 4.1 |
| ACA-3.F | 3.8 |
| ACA-5.F | 5.4 |
| BBCE-3.F | 3.0 |
| ACE-2.F | 3.1 |
| ACE-3.F | 4.1 |
| BB-3.V | 35.6 |
| BB-3.U1 | 7.3 |
| BA-3.O2 | 7.4 |
| BBA-V.1 | 7.4 |
| BBA-3.OCF3 | 5.0 |
| BBC-3=2.F | 5.1 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 97.8 |
| VHR (100 degree) | 87.7 |
| Tni(℃) | 82.1 |
| Δn | 0.1191 |
| Δε | 3.1 |
3.6 embodiments 4
[table 15]
| Code | Content (weight, g) |
| ACA-2.3 | 5.0 |
| ACA-2.4 | 5.2 |
| ACA-3.3 | 3.6 |
| ACA-3.F | 4.0 |
| ACA-5.F | 4.6 |
| BBCE-3.F | 3.0 |
| ACE-2.F | 2.9 |
| ACE-3.F | 3.8 |
| BB-3.V | 38.7 |
| BB-3.U1 | 4.1 |
| BA-3.O2 | 6.9 |
| BBA-V.1 | 6.4 |
| BBA-3.OCF3 | 6.8 |
| BBC-3=2.F | 5.0 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 97.5 |
| VHR (100 degree) | 88.3 |
| Tni(℃) | 81.5 |
| Δn | 0.1178 |
| Δε | 3.1 |
3.7 embodiments 5
[table 16]
| Code | Content (weight, g) |
| ACA-2.3 | 3.0 |
| ACA-3.3 | 2.0 |
| BBCE-3.F | 2.0 |
| ACE-2.F | 6.0 |
| ACE-3.F | 10.0 |
| ACE-5.F | 10.0 |
| BB-3.V | 36.0 |
| BB-3.U1 | 9.0 |
| BAA-3.2 | 3.2 |
| BAA-5.2 | 3.0 |
| BBA-V.1 | 3.8 |
| BBA-3.OCF3 | 3.3 |
| BBE-3.F | 5.1 |
| BAE-3.F | 3.6 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 98.2 |
| VHR (100 degree) | 87.4 |
| Clearing point | 72.1 |
| Refractive anisotrop | 0.1178 |
| Dielectric constant anisotropy | 5.2 |
3.8 embodiments 6
[table 17]
| Code | Content (weight, g) |
| ACA-2.3 | 1.6 |
| ACA-3.F | 5.0 |
| BBCE-3.F | 5.6 |
| ACE-2.F | 4.6 |
| ACE-3.F | 5.5 |
| ACE-5.F | 5.1 |
| BB-3.V | 38.8 |
| BB-3.U1 | 12.3 |
| BAA-3.2 | 4.3 |
| BAA-5.2 | 3.0 |
| BBA-3.OCF3 | 8.3 |
| BAE-3.F | 5.9 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 98.5 |
| VHR (100 degree) | 88.1 |
| Clearing point | 78.6 |
| Refractive anisotrop | 0.1083 |
| Dielectric constant anisotropy | 5.0 |
3.9Embodiment 7
[table 18]
| Code | Content (weight, g) |
| ACA-2.F | 6.3 |
| ACA-3.F | 5.3 |
| BBCE-3.F | 2.2 |
| ACE-2.F | 3.1 |
| ACE-3.F | 6.7 |
| ACE-5.F | 6.9 |
| BB-3.V | 39.9 |
| BB-3.U1 | 6.9 |
| BAA-3.2 | 4.8 |
| BAA-5.2 | 2.2 |
| BBA-3.OCF3 | 6.5 |
| BAE-3.F | 7.1 |
| BBAE-3.F | 2.1 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 98.4 |
| VHR (100 degree) | 87.6 |
| Clearing point | 75.0 |
| Refractive anisotrop | 0.1184 |
| Dielectric constant anisotropy | 5.8 |
3.10 embodiment 8
[table 19]
| Code | Content (weight, g) |
| ACA-2.3 | 5.8 |
| ACA-2.F | 4.2 |
| ACA-3.F | 3.7 |
| BBCE-3.F | 2.9 |
| ACE-2.F | 3.6 |
| ACE-3.F | 2.8 |
| BB-3.V | 38.2 |
| BB-3.U1 | 4.3 |
| BAA-3.2 | 4.6 |
| BBA-3.OCF3 | 7.4 |
| BBE-2.F | 4.9 |
| BBE-3.F | 4.6 |
| BAE-3.F | 8.4 |
| BBC-3=2.F | 4.6 |
| Chemical formula 5 | 300ppm |
| Low-temperature stability (- 25 degree) | 30 days or more OK |
| VHR (60 degree) | 98.8 |
| VHR (100 degree) | 87.4 |
| Clearing point | 79.1 |
| Refractive anisotrop | 0.1092 |
| Dielectric constant anisotropy | 5.1 |
3.11 brief summary
Above-mentioned comparative example 1 and 2 be include the first liquid-crystal compounds, third liquid-crystal compounds and the 4th liquid-crystal compounds, but
Composition without the second liquid-crystal compounds and antioxidant.Observe comparative example 1 and 2, low-temperature stability is poor, and VHR be 79~
81%, be not suitable for LCD.Compared to this, in embodiment 1 to 8, including the first whole liquid-crystal compounds liquid-crystalizes to the 4th
Object is closed, low-temperature stability is excellent.In addition, in embodiment 1 to 8, VHR is 87% or more, is improved compared with comparative example 1 and 2.
More than, it is illustrated with reference to a preferred embodiment of the present invention, but it will be apparent that the general skill of this field
Art personnel can be right in the range of not departing from the thought and technical field of the aftermentioned present invention described in the scope of the claims
The present invention carries out diversified modifications and changes.
Therefore, technical scope of the invention is not limited by the content described in the specific implementation mode of specification, is answered
It is determined when by right.
INDUSTRIAL APPLICABILITY
The present invention is by being used for liquid crystal display device, to provide low-temperature stability and the high display device of reliability.
Claims (32)
1. a kind of liquid crystal display device, including：
First substrate；
The second substrate opposite with the first substrate；
Set on the electrode portion of at least one of the first substrate and second substrate；With
The liquid crystal layer constituted between the first substrate and the second substrate and by liquid-crystal composition,
The liquid-crystal composition includes at least one of first liquid-crystal compounds represented by following chemical formula 1 and following chemistry
At least one of second liquid-crystal compounds represented by formula 2, nematic-isotropism phase transition temperature be -25 degree hereinafter,
[chemical formula 1]
R1It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X1For-
F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy and arbitrary hydrogen can be replaced by fluorine,
[chemical formula 2]
R2It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X2For-
F、-Cl、-OCF3, carbon atom number 1 to 10 alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L3To L6It independently is hydrogen
Or fluorine, but exclude L5And L6The case where being hydrogen, n are 1 or 2.
2. liquid crystal display device according to claim 1, the liquid-crystal composition maintained below -25 degree Celsius 10 days with
Upper nematic phase.
3. liquid crystal display device according to claim 1, first liquid-crystal compounds includes following chemical formula 1-1 to 1-
At least one of liquid-crystal compounds represented by 6,
[chemical formula 1-1]
[chemical formula 1-2]
[chemical formula 1-3]
[chemical formula 1-4]
[chemical formula 1-5]
[chemical formula 1-6]
4. liquid crystal display device according to claim 1, second liquid-crystal compounds includes following chemical formula 2-A and change
At least one of liquid-crystal compounds represented by formula 2-B,
[chemical formula 2-A]
[chemical formula 2-B]
5. liquid crystal display device according to claim 1, the liquid-crystal composition further includes 3 tables of following chemical formula
The third liquid-crystal compounds shown,
[chemical formula 3]
R3It can be replaced by fluorine for the alkyl and arbitrary hydrogen of carbon atom number 1 to 10, X3For the alkane of-F ,-Cl, carbon atom number 1 to 10
Base or alkoxy and arbitrary hydrogen can be replaced by fluorine,
L7To L10It independently is hydrogen or fluorine, but excludes L9And L10The case where being hydrogen.
6. liquid crystal display device according to claim 5, the third liquid-crystal compounds includes following chemical formula 3-1 to 3-
At least one of liquid-crystal compounds represented by 3,
[chemical formula 3-1]
[chemical formula 3-2]
[chemical formula 3-3]
7. liquid crystal display device according to claim 1, the liquid-crystal composition further includes 4 tables of following chemical formula
At least one of the 4th liquid-crystal compounds shown,
[chemical formula 4]
R4It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X4For-
F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen can be taken by fluorine
Generation,
Z1For singly-bound ,-C ≡ C- ,-COO- ,-OCO- ,-CH2O-、-(CH2)2Or-CH=CH-, ring A be 1 or 4 cyclohexylidene or
1,4- phenylenes.
8. liquid crystal display device according to claim 7, the 4th liquid-crystal compounds includes that following chemical formula 4-1 extremely changes
At least one of liquid-crystal compounds represented by formula 4-3,
[chemical formula 4-1]
[chemical formula 4-2]
[chemical formula 4-3]
9. liquid crystal display device according to claim 1, the liquid-crystal composition further includes 3 tables of following chemical formula
At least one in the 4th liquid-crystal compounds represented by least one of third liquid-crystal compounds shown and following chemical formula 4
Kind,
[chemical formula 3]
R3It can be replaced by fluorine for the alkyl and arbitrary hydrogen of carbon atom number 1 to 10, X3For the alkane of-F ,-Cl, carbon atom number 1 to 10
Base or alkoxy and arbitrary hydrogen can be replaced by fluorine,
L7To L10It independently is hydrogen or fluorine, but excludes L9And L10The case where being hydrogen,
[chemical formula 4]
R4It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X4For-
F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen can be taken by fluorine
Generation,
Z1For singly-bound ,-C ≡ C- ,-COO- ,-OCO- ,-CH2O-、-(CH2)2Or-CH=CH-, ring A be 1 or 4 cyclohexylidene or
1,4- phenylenes.
10. liquid crystal display device according to claim 9, the liquid-crystal composition includes first liquid-crystal compounds 1
~35 parts by weight, 1~30 parts by weight of the second liquid-crystal compounds, 2~30 parts by weight of third liquid-crystal compounds and described
4th liquid-crystal compounds, 20~55 parts by weight.
11. liquid crystal display device according to claim 9, the liquid-crystal composition further include following chemical formula 5 or
Antioxidant represented by chemical formula 6,
[chemical formula 5]
[chemical formula 6]
R5And R6Hydrogen or the alkyl of carbon atom number 1 to 15 are each independently represented, at this point, more than one-CH2Group respectively that
This independently can be in such a way that O atom be not directly connected each other by-C ≡ C- ,-CF2O- ,-CH=CH- ,-O- ,-CO-
O- ,-O-CO- or-O-CO-O- substitutions, Y1And Y2It independently is-O- or-CH2-。
12. liquid crystal display device according to claim 11, described anti-oxidant relative to 100 parts by weight of liquid-crystal composition
Agent is set as 0.01~0.05 parts by weight.
13. liquid crystal display device according to claim 9, the liquid-crystal composition further includes 7 He of following chemical formula
At least one of ultra-violet stabilizer represented by chemical formula 8,
[chemical formula 7]
[chemical formula 8]
In the formula, R7、R8And R9The alkyl for independently indicating hydrogen, oxygen or carbon atom number 1 to 15, at this point, more than one-CH2-
Group respectively independently of one another can be in such a way that O atom be not directly connected each other by-C ≡ C- ,-CF2O- ,-CH=CH- ,-
O- ,-CO-O- ,-O-CO- or-O-CO-O- substitutions, 1 to 3 hydrogen atom can be optionally substituted by halogen, and m is that 1 to 12, p is 0 to 12.
14. the liquid crystal display device according to claim 1 or 9, the liquid-crystal composition further includes following chemical formula
At least one of liquid-crystal compounds represented by 10,
[chemical formula 10]
R10It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, ring A is
1 or 4 cyclohexylidene may replace Isosorbide-5-Nitrae-phenylene there are one the above F, X5For-F ,-Cl ,-OCF3, carbon atom number 1 to 10 alkane
Base or alkoxy and arbitrary hydrogen can be replaced by fluorine, L11To L12It independently is hydrogen or fluorine.
15. liquid crystal display device according to claim 14, under the liquid-crystal compounds represented by the chemical formula 10 includes
At least one of the liquid-crystal compounds represented by chemical formula 10-1 to chemical formula 10-5 is stated,
[chemical formula 10-1]
[chemical formula 10-2]
[chemical formula 10-3]
[chemical formula 10-4]
[chemical formula 10-5]
R10It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X5For-
F、-Cl、-OCF3, carbon atom number 1 to 10 alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L11And L12It independently is
Hydrogen or fluorine.
16. liquid crystal display device according to claim 15, under the liquid-crystal compounds represented by the chemical formula 10 includes
At least one of the liquid-crystal compounds represented by chemical formula 10-A to chemical formula 10-I is stated,
[chemical formula 10-A]
[chemical formula 10-B]
[chemical formula 10-C]
[chemical formula 10-D]
[chemical formula 10-E]
[chemical formula 10-F]
[chemical formula 10-G]
[chemical formula 10-H]
[chemical formula 10-I]
17. a kind of liquid-crystal composition, it includes at least one of first liquid-crystal compounds represented by following chemical formula 1 and under
State at least one of the second liquid-crystal compounds represented by chemical formula 2, nematic-isotropism phase transition temperature be -25 degree hereinafter,
[chemical formula 1]
R1It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X1For-
F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy and arbitrary hydrogen can be replaced by fluorine,
[chemical formula 2]
R2It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X2For-
F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy and arbitrary hydrogen can be replaced by fluorine, L3To L6It independently is hydrogen or fluorine,
But exclude L5And L6The case where being hydrogen, n are 1 or 2.
18. liquid-crystal composition according to claim 17, the liquid-crystal composition maintained below -25 degree Celsius 10 days with
Upper nematic phase.
19. liquid-crystal composition according to claim 17, first liquid-crystal compounds includes following chemical formula 1-1 to 1-
At least one of liquid-crystal compounds represented by 6,
[chemical formula 1-1]
[chemical formula 1-2]
[chemical formula 1-3]
[chemical formula 1-4]
[chemical formula 1-5]
[chemical formula 1-6]
20. liquid-crystal composition according to claim 17, second liquid-crystal compounds includes following chemical formula 2-A and change
At least one of liquid-crystal compounds represented by formula 2-B,
[chemical formula 2-A]
[chemical formula 2-B]
21. liquid-crystal composition according to claim 17, the liquid-crystal composition further includes 3 tables of following chemical formula
The third liquid-crystal compounds shown,
[chemical formula 3]
R3It can be replaced by fluorine for the alkyl and arbitrary hydrogen of carbon atom number 1 to 10, X3For the alkane of-F ,-Cl, carbon atom number 1 to 10
Base or alkoxy and arbitrary hydrogen can be replaced by fluorine,
L7To L10It independently is hydrogen or fluorine, but excludes L9And L10The case where being hydrogen.
22. liquid-crystal composition according to claim 21, the third liquid-crystal compounds includes following chemical formula 3-1 to 3-
At least one of liquid-crystal compounds represented by 3,
[chemical formula 3-1]
[chemical formula 3-2]
[chemical formula 3-3]
23. liquid-crystal composition according to claim 17, the liquid-crystal composition further includes 4 tables of following chemical formula
The 4th liquid-crystal compounds shown,
[chemical formula 4]
R4It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X4For-
F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen can be taken by fluorine
Generation,
Z1For singly-bound ,-C ≡ C- ,-COO- ,-OCO- ,-CH2O-、-(CH2)2Or-CH=CH-, ring A be 1 or 4 cyclohexylidene or
1,4- phenylenes.
24. liquid-crystal composition according to claim 23, the 4th liquid-crystal compounds includes that following chemical formula 4-1 extremely changes
At least one of liquid-crystal compounds represented by formula 4-3,
[chemical formula 4-1]
[chemical formula 4-2]
[chemical formula 4-3]
25. liquid-crystal composition according to claim 17 further includes the third liquid crystal represented by following chemical formula 3
At least one of the 4th liquid-crystal compounds represented by least one of compound and following chemical formula 4,
[chemical formula 3]
R3It can be replaced by fluorine for the alkyl and arbitrary hydrogen of carbon atom number 1 to 10, X3For the alkane of-F ,-Cl, carbon atom number 1 to 10
Base or alkoxy and arbitrary hydrogen can be replaced by fluorine,
L7To L10It independently is hydrogen or fluorine, but excludes L9And L10The case where being hydrogen,
[chemical formula 4]
R4It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X4For-
F ,-Cl, the alkyl of carbon atom number 1 to 10 or alkoxy or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen can be taken by fluorine
Generation,
Z1For singly-bound ,-C ≡ C- ,-COO- ,-OCO- ,-CH2O-、-(CH2)2Or-CH=CH-, ring A be 1 or 4 cyclohexylidene or
1,4- phenylenes.
26. liquid-crystal composition according to claim 25, the liquid-crystal composition include first liquid-crystal compounds 1~
35 parts by weight, 1~30 parts by weight of the second liquid-crystal compounds, 2~30 parts by weight of third liquid-crystal compounds and described
Four liquid-crystal compounds, 20~55 parts by weight.
27. liquid-crystal composition according to claim 26, the liquid-crystal composition further includes following chemical formula 5 or changes
Antioxidant represented by formula 6,
[chemical formula 5]
[chemical formula 6]
R5And R6Hydrogen or the alkyl of carbon atom number 1 to 15 are each independently represented, at this point, more than one-CH2Group respectively that
This independently can be in such a way that O atom be not directly connected each other by-C ≡ C- ,-CF2O- ,-CH=CH- ,-O- ,-CO-
O- ,-O-CO- or-O-CO-O- substitutions, Y1And Y2It independently is-O- or-CH2-。
28. liquid-crystal composition according to claim 27, relative to 100 parts by weight of liquid-crystal composition, the antioxidant
It is set as 0.01~0.05 parts by weight.
29. liquid-crystal composition according to claim 25 further includes represented by following chemical formula 7 and chemical formula 8
At least one of ultraviolet light additive,
[chemical formula 7]
[chemical formula 8]
In the formula, R7、R8And R9The alkyl for independently indicating hydrogen, oxygen or carbon atom number 1 to 15, at this point, more than one-CH2-
Group respectively independently of one another can be in such a way that O atom be not directly connected each other by-C ≡ C- ,-CF2O- ,-CH=CH- ,-
O- ,-CO-O- ,-O-CO- or-O-CO-O- substitutions, 1 to 3 hydrogen atom can be optionally substituted by halogen, and m is that 1 to 12, p is 0 to 12.
30. the liquid-crystal composition according to claim 17 or 25, the liquid-crystal composition further includes following chemical formula
At least one of liquid-crystal compounds represented by 10,
[chemical formula 10]
R10It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, ring A is
1 or 4 cyclohexylidene may replace Isosorbide-5-Nitrae-phenylene there are one the above F, X5For-F ,-Cl ,-OCF3, carbon atom number 1 to 10 alkane
Base or alkoxy and arbitrary hydrogen can be replaced by fluorine, L11To L12It independently is hydrogen or fluorine, ring A is 1 or 4 cyclohexylidene or 1,
4- phenylenes.
31. liquid-crystal composition according to claim 30, the liquid-crystal compounds represented by the chemical formula 10 includes following
At least one of liquid-crystal compounds represented by chemical formula 10-1 to chemical formula 10-5,
[chemical formula 10-1]
[chemical formula 10-2]
[chemical formula 10-3]
[chemical formula 10-4]
[chemical formula 10-5]
R10It can be replaced by fluorine for the alkyl of carbon atom number 1 to 10 or the alkenyl of carbon atom number 2 to 10 and arbitrary hydrogen, X5For-
F、-Cl、-OCF3, carbon atom number 1 to 10 alkyl or alkoxy and arbitrary hydrogen can be replaced by fluorine, L11And L12It independently is
Hydrogen or fluorine.
32. liquid-crystal composition according to claim 31, the liquid-crystal compounds represented by the chemical formula 10 includes following
At least one of liquid-crystal compounds represented by chemical formula 10-A to chemical formula 10-I,
[chemical formula 10-A]
[chemical formula 10-B]
[chemical formula 10-C]
[chemical formula 10-D]
[chemical formula 10-E]
[chemical formula 10-F]
[chemical formula 10-G]
[chemical formula 10-H]
[chemical formula 10-I]
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| KR1020150155885A KR20170053412A (en) | 2015-11-06 | 2015-11-06 | Liquid crystal display and liquid crystal composition comprised thereof |
| KR10-2015-0155885 | 2015-11-06 | ||
| PCT/KR2016/012645 WO2017078456A1 (en) | 2015-11-06 | 2016-11-04 | Liquid crystal display device and liquid crystal composition included therein |
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| EP2292720A1 (en) * | 2009-09-08 | 2011-03-09 | Merck Patent GmbH | Liquid-crystal display |
| JP5561450B1 (en) * | 2013-11-29 | 2014-07-30 | Ｄｉｃ株式会社 | Liquid crystal display |
| CN104520760B (en) * | 2013-12-24 | 2016-03-09 | Dic株式会社 | Liquid crystal indicator |
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| WO2021003809A1 (en) * | 2019-07-10 | 2021-01-14 | 北京八亿时空液晶科技股份有限公司 | Polymer-stabilized liquid crystal composition and use thereof |
| JP2022539452A (en) * | 2019-07-10 | 2022-09-09 | 北京八億時空液晶科技股▲ふん▼有限公司 | Polymer-stabilized liquid crystal composition and its use |
| JP7441865B2 (en) | 2019-07-10 | 2024-03-01 | 北京八億時空液晶科技股▲ふん▼有限公司 | Polymer stabilized liquid crystal composition and use thereof |
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| KR20170053412A (en) | 2017-05-16 |
| WO2017078456A1 (en) | 2017-05-11 |
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