CN104745201A - Liquid crystal composition and liquid crystal display module - Google Patents
Liquid crystal composition and liquid crystal display module Download PDFInfo
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- CN104745201A CN104745201A CN201410801969.9A CN201410801969A CN104745201A CN 104745201 A CN104745201 A CN 104745201A CN 201410801969 A CN201410801969 A CN 201410801969A CN 104745201 A CN104745201 A CN 104745201A
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- 239000000203 mixture Substances 0.000 title claims abstract description 131
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 81
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 229910052736 halogen Inorganic materials 0.000 claims description 12
- 150000002367 halogens Chemical class 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 229910052731 fluorine Inorganic materials 0.000 claims description 9
- 125000001153 fluoro group Chemical group F* 0.000 claims description 9
- 125000005842 heteroatom Chemical group 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 125000002769 thiazolinyl group Chemical group 0.000 claims description 3
- 238000003860 storage Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 13
- 239000007788 liquid Substances 0.000 description 11
- 150000001875 compounds Chemical group 0.000 description 10
- 239000012071 phase Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Landscapes
- Liquid Crystal Substances (AREA)
Abstract
A liquid crystal composition comprising a component represented by formula I, a component represented by formula II, and a component represented by formula III: wherein R is1、R2、R3、R4、A1、A2、A3、A4、A5、A6、A7、A8、A9、Z1、Z2、Z3、Z4、Z5、Z6M, n, o and p are as defined in the specification, and the content of the component represented by formula III in the liquid crystal composition is more than 10% by weight.
Description
[technical field]
The present invention relates to a kind of liquid-crystal composition, and in particular to a kind of, there is the liquid-crystal composition of good cold tolerance (low-temperature storage, low temperature storage) and the LCD assembly containing this liquid-crystal composition.
[background technology]
Liquid-crystal display has lightweight, power saving, radiationless with advantages such as full-color displays, therefore becomes the most general display product.
In recent years along with the continuous lifting of technology, and the requirement to high resolving power, high reaction rate and high image quality, liquid-crystal display is by twisted nematic (twisted nematic, TN) with STN Super TN (supertwisted nematic, etc. STN) passive type drives display mode, develop into the active matrix liquid crystal display device with thin film transistor (thinfilmed transistor, TFT).Along with the demand of wide viewing angle technology, transverse electric field (in-plane switching, IPS) with exploitation and the breakthrough of the liquid-crystal display mode such as vertical orientation (vertical alignment, VA), the application & development for following panel is considerable.
With regard to liquid-crystal composition, for reducing the threshold voltage (threshold voltage, Vth) of LCD assembly, require higher dielectric anisotropy (dielectric anisotropy, Δ ε); For adding fast-response (response) speed, require lower rotary viscosity (rotational viscosity, γ 1); For improving contrast gradient, require higher optical anisotropy (optical anisotropy, Δ n); In order to be suitable for using under circumstances, require higher clear point temperature (Tni).Although in order to meet these requirements, carry out various research to liquid-crystal composition, meeting usually along with the sacrifice of another character of a certain character, therefore, not yet obtains the liquid-crystal composition that can meet each side and require.
[summary of the invention]
The invention provides a kind of liquid-crystal composition, adopt this liquid-crystal composition to make LCD assembly, LCD assembly can be made to have good performance.
Liquid-crystal composition of the present invention comprises the composition represented by formula III that the composition represented by formula I, the composition represented by formula II and content are greater than 10 % by weight:
formula I;
formula II;
formula III; Wherein
R
1, R
2, R
3and R
4-H, C respectively
1-C
15alkyl or C
2-C
15thiazolinyl, the and-CH in aforesaid alkyl or thiazolinyl
2-can be replaced by-O-,-CO-,-COO-or-OCO-, but prerequisite is heteroatoms does not directly connect each other;
A
1, A
2, A
3and A
4be selected from the group be made up of the sub-THP trtrahydropyranyl of Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene, 2,5-indanes and 2,5-respectively, the hydrogen wherein on Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene and 2,5-indane can be unsubstituted or replace through fluorine atom, and A
1, A
2, A
3and A
4in at least one is 2,5-indane;
A
5, A
6, A
7, A
8and A
9be selected from the group be made up of the sub-THP trtrahydropyranyl of Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene and 2,5-respectively, the hydrogen wherein on Isosorbide-5-Nitrae-phenylene and Isosorbide-5-Nitrae-cyclohexylidene can be unsubstituted or replace through fluorine atom;
M, n, o and p are 0 or 1 respectively, and m+n+o+p > 2;
Z
1, Z
2, Z
3, Z
4, Z
5and Z
6singly-bound ,-CH=CH-,-C ≡ C-,-COO-,-OCO-,-CF respectively
2o-or-OCF
2-, wherein the hydrogen of-CH=CH-can replace through fluorine atom; And
X
1-H ,-F ,-Cl, the C that is unsubstituted
1-C
20alkyl, C through halogen substiuted
1-C
20alkyl, the C be unsubstituted
1-C
20alkoxyl group or the C through halogen substiuted
1-C
20alkoxyl group; And X
1in-CH
2-can be replaced by-O-,-S-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,-CF=CH-,-COO-or-OCO-, prerequisite is that heteroatoms does not directly connect each other.
In one embodiment of the invention, the composition represented by formula II comprises the composition represented by formula II-A and the composition represented by formula II-B:
formula II-A
formula II-B, wherein
X
2-H ,-F ,-Cl, the C that is unsubstituted
1-C
20alkyl, C through halogen substiuted
1-C
20alkyl, the C be unsubstituted
1-C
20alkoxyl group or the C through halogen substiuted
1-C
20alkoxyl group, but X
2do not comprise-OCF
3; X
2in-CH
2-can be replaced by-O-,-S-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,-CF=CH-,-COO-or-OCO-, prerequisite is that heteroatoms does not directly connect each other.
In one embodiment of the invention, the composition represented by formula II-A accounts for 4 ~ 60 % by weight in this liquid-crystal composition, preferably accounts for 12 ~ 60 % by weight, more preferably accounts for 25 ~ 55 % by weight; The composition represented by formula II-B accounts for 2 ~ 45 % by weight in this liquid-crystal composition, preferably accounts for 2 ~ 30 % by weight, more preferably accounts for 8 ~ 25 % by weight.
In one embodiment of the invention, the composition represented by formula I accounts for 1 ~ 30 % by weight in this liquid-crystal composition, preferably account for 1 ~ 25 % by weight, more preferably account for 4 ~ 15 % by weight, the composition represented by formula II accounts for 5 ~ 70 % by weight in this liquid-crystal composition, preferably accounts for 15 ~ 70 % by weight, more preferably 30 ~ 70 % by weight are accounted for, the composition represented by formula III accounts for 15 ~ 70 % by weight in this liquid-crystal composition, preferably accounts for 15 ~ 60 % by weight, more preferably accounts for 16 ~ 41 % by weight.
In one embodiment of the invention, p is not equal to 0, and A
1comprise 2,5-indane.
In one embodiment of the invention, A
1, A
2, A
3, A
4, A
5, A
6, A
7, A
8and A
9in at least one is
In one embodiment of the invention, A
5, A
6and A
7in at least one is
In one embodiment of the invention, m+n+o+p≤4.
LCD assembly of the present invention comprises the liquid-crystal composition in any one aforementioned embodiments.
Based on above-mentioned, the invention provides a kind of liquid-crystal composition, it has good cold tolerance and high Tni, high Δ n and high Δ ε, this liquid-crystal composition is adopted to make LCD assembly, LCD assembly can be made to have the characteristic such as power saving, high-contrast, and be applicable to the use of outdoor environment.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below is described in detail below.
[embodiment]
In this article, the scope represented by " numerical value is to another numerical value " is a kind of summary representation avoiding all numerical value enumerated in the description in this scope.Therefore, describe a certain special value scope, be equal to any number disclosed in this numerical range and the comparatively fractional value scope defined by any number in this numerical range, as clearly write out this any number in the description, comparatively fractional value scope is the same with this.Such as, record the scope of " content is 10 ~ 80% ", be just equal to the scope disclosing " content is 20% ~ 40% ", no matter whether enumerate other numerical value in specification sheets.
In this article, if whether do not specialize a certain group through replacing, then this group can represent the group being substituted or being unsubstituted.Such as, " alkyl " can represent the alkyl being substituted or being unsubstituted.
In this article, sometimes compound structure is represented with key line formula (skeleton formula).This representation can omission of carbon atom, hydrogen atom and C-H bond.Certainly, have in structural formula and clearly draw atom or atomic radical, be then as the criterion with the person of illustrating.
First embodiment of the present invention proposes a kind of liquid-crystal composition, it the 3rd composition comprising the first composition represented by formula I, the second composition represented by formula II and represented by formula III:
formula I;
formula II;
formula III.
R
1, R
2, R
3and R
4-H, C respectively
1-C
15alkyl or C
2-C
15thiazolinyl, preferably-H, C
1-C
10alkyl or C
1-C
10thiazolinyl, the and-CH in aforesaid alkyl or thiazolinyl
2-can be replaced by-O-,-CO-,-COO-or-OCO-, but prerequisite is heteroatoms does not directly connect each other.
A
1, A
2, A
3and A
4be selected from the group be made up of the sub-THP trtrahydropyranyl of Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene, 2,5-indanes and 2,5-respectively, the hydrogen wherein on Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene and 2,5-indane can be unsubstituted or replace through fluorine atom, and A
1, A
2, A
3and A
4in at least one is 2,5-indane.
A
5, A
6, A
7, A
8and A
9be selected from the group be made up of the sub-THP trtrahydropyranyl of Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene and 2,5-respectively, the hydrogen wherein on Isosorbide-5-Nitrae-phenylene and Isosorbide-5-Nitrae-cyclohexylidene can be unsubstituted or replace through fluorine atom.
M, n, o and p are 0 or 1 respectively, and m+n+o+p > 2.
Z
1, Z
2, Z
3, Z
4, Z
5and Z
6singly-bound ,-CH=CH-,-C ≡ C-,-COO-,-OCO-,-CF respectively
2o-or-OCF
2-, wherein the hydrogen of-CH=CH-can replace through fluorine atom.
X
1-H ,-F ,-Cl, the C that is unsubstituted
1-C
20alkyl, C through halogen substiuted
1-C
20alkyl, the C be unsubstituted
1-C
20alkoxyl group or the C through halogen substiuted
1-C
20alkoxyl group, wherein the carbon number of alkyl or alkoxyl group is preferably 1 to 10; X
1in-CH
2-can be replaced by-O-,-S-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,-CF=CH-,-COO-or-OCO-, prerequisite is that heteroatoms does not directly connect each other.
Because m, n, o, p sum is greater than 2, and A
1to A
4in have at least one to be 2,5-indane (this is the compound kind having twin nuclei, and its structure can refer to (experiment) " RI " partly).Therefore, the first composition represented by formula I has more number of rings (being such as more than or equal to 4), this can allow liquid-crystal composition have high Δ ε, high Δ n and high Tni, and then it is high and be suitable for the characteristic of outdoor use to make the LCD assembly containing this liquid-crystal composition have power saving, contrast gradient.In addition, generally speaking, high Δ ε, high Δ n, high Tni and excellent low-temperature storage are difficult to and the character of depositing often, but liquid-crystal composition contain aforementioned first to the 3rd composition time, not only Δ ε, Δ n and Tni can meet the demand of application surface, and its low-temperature storage is also very good.Will to test proof below these features.
In one embodiment, p is not equal to 0, and A
1comprise 2,5-indane.In other words, 2,5-indane is positioned at the first composition neutralization-OCF
3the relative the other end.More particularly, in one embodiment, p equals 1, A
1be 2,5-indane, and A
2, A
3and A
42,5-indane can not be comprised.
In one embodiment, the composition represented by formula I accounts for 1 ~ 30 % by weight in liquid-crystal composition, preferably account for 1 ~ 25 % by weight, more preferably account for 4 ~ 15 % by weight, the composition represented by formula II accounts for 5 ~ 70 % by weight in this liquid-crystal composition, preferably accounts for 15 ~ 70 % by weight, more preferably 30 ~ 70 % by weight are accounted for, the composition represented by formula III accounts for 15 ~ 70 % by weight in this liquid-crystal composition, preferably accounts for 15 ~ 60 % by weight, more preferably accounts for 16 ~ 41 % by weight.
In one embodiment of the invention, A
1, A
2, A
3, A
4, A
5, A
6, A
7, A
8and A
9in at least one is
more particularly, A
5, A
6and A
7in at least one is
A
5, A
6and A
7in containing or do not contain
structure, may affect the dielectric anisotropy of liquid crystal monomer, is positive type liquid crystal or negative type liquid crystal.But, no matter in liquid-crystal composition whether containing negative type liquid crystal monomer, as long as this liquid-crystal composition is simultaneously containing the first to the 3rd composition, all can reach the good effect of low-temperature storage.
In one embodiment of the invention, the composition represented by formula II comprises the composition represented by formula II-A and the composition represented by formula II-B:
formula II-A
formula II-B.
R
2, A
5, A
6, A
7, Z
4, Z
5identical with previously described.
X
2-H ,-F ,-Cl, the C that is unsubstituted
1-C
20alkyl, C through halogen substiuted
1-C
20alkyl, the C be unsubstituted
1-C
20alkoxyl group or the C through halogen substiuted
1-C
20alkoxyl group, but X
2do not comprise-OCF
3, and the carbon number of aforesaid alkyl and alkoxyl group is preferably 1 to 10; X
2in-CH
2-can be replaced by-O-,-S-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,-CF=CH-,-COO-or-OCO-, prerequisite is that heteroatoms does not directly connect each other.In other words, it is-OCF that the composition that formula II represents can contain end simultaneously
3composition and end not containing-OCF
3composition.
In one embodiment, the composition represented by formula II-A accounts for 4 ~ 60 % by weight in liquid-crystal composition, is preferably 12 ~ 60 % by weight, is more preferably 25 ~ 55 % by weight; The composition represented by formula II-B accounts for 2 ~ 45 % by weight in liquid-crystal composition, is preferably 2 ~ 30 % by weight, is more preferably 8 ~ 25 % by weight.
About the synthetic method of the first composition, such as name can be called the 9914-3515 Taiwan Patent application of " liquid crystalline cpd and liquid crystal compound " with reference to filing an application on December 13rd, 2010, disclosed in 1 day June in 2012, the overall content of this application is incorporated to the application through quoting, and obtains the foundation of conciliating reader application as amendment.As for the second composition and the 3rd composition, then originally belong to liquid crystalline cpd as known in the art, its synthetic method does not repeat at this more.
Another embodiment of the present invention proposes a kind of LCD assembly, the feature of this LCD assembly is, comprise the liquid-crystal composition in any one aforementioned embodiments, certainly, this LCD assembly also can have the component of other known LCD assembly, such as substrate, polaroid, colored filter or alignment film etc.Except the liquid-crystal composition included, the manufacture method of this LCD assembly and construction components can be selected arbitrarily from known techniques, therefore do not repeat at this.
(experiment)
Hereafter more specifically the present invention is described with reference to embodiment.Although describe following examples, when insurmountability scope, suitably can change material therefor, its amount and ratio, process details and treatment scheme etc.Therefore, should according to the explanation of embodiment hereinafter described to restricting property of the present invention.
Because the liquid-crystal composition of comparative example and embodiment contains tens of kinds of liquid crystalline cpds separately, for asking the succinct of expression, hereafter represent different liquid crystalline cpds by with the combination of code name, wherein each code name represents following structural unit respectively.
In code name " V1 ", numeral " 1 " represents methyl, and in like manner, the digitized representation carbon number shown with normal font equals the alkyl of this numeral.For example, 3RIUQU-OCF
3represent that structure is the compound of following formula:
And 3CCPl represents that structure is the compound of following formula:
Mix various liquid crystalline cpd with the ratio (weight percent) shown in table 1, prepare the liquid-crystal composition of comparative example 1 to comparative example 3 and the liquid-crystal composition of embodiment 1 to embodiment 14 thus.In Table 1, " C-1 " to " C-4 " represents comparative example 1 respectively to comparative example 4; " E-01 " to " E-15 " represents embodiment 1 respectively to embodiment 15.
In the table 1 (continuous 1) of table 1 with time page, the various compounds adhering to the first composition (by formula I signifier), the second composition (by formula II-A or formula II-B signifier) and the 3rd composition (by formula III signifier) separately are clearly classified by applicant.As for the composition described in table 1 (continuous 2), then it is other compound contained in liquid-crystal composition.
Table 2 describes the performance of liquid-crystal composition at Tni, Vth, Δ ε, γ 1, Δ n and LTS (low temperature storage, low-temperature storage) aspect of each comparative example and each embodiment.These character are through following methods respectively and measure:
Clear point (Tni):
Use differential scanning calorimeter (DSC; Manufacturer: TA; Model: Q200), liquid crystalline cpd is placed in aluminium dish essence and claims 0.5 to 10mg, transformation temperature test is carried out with DSC after the briquetting of aluminium dish, the endotherm(ic)peak occurred because of phase change by liquid crystalline cpd and the starting point of exothermic peak are to obtain phase change temperature, because liquid crystalline cpd is nematic phase (nematic phase), therefore by the collection of illustrative plates of room temperature only there will be the endotherm(ic)peak that nematic Phase is liquid phase, clear point temperature (Tni) can be read.
Optical anisotropy (Δ n):
Utilize Abbe (Abbe) refractometer (manufacturer: an ATAGO eyepiece being provided with Polarizer; Model: DR-M2) measure.First, brush alignment liquid on the headprism surface of Abbe refractometer with one direction, and with non-dust cloth wiping orientation in the same direction, on headprism, then drip a small amount of liquid to be measured, probe temperature 25 DEG C, the spectral filter that wavelength is 589nm is used to carry out optically anisotropic measurement.When polarization direction is parallel with wiping direction, the specific refractory power recorded is n||; When polarization direction is vertical with wiping direction, the specific refractory power recorded is n ⊥; Optical anisotropy (Δ n)=n||-n ⊥.
Dielectric anisotropy (Δ ε):
Liquid crystalline cpd to be measured is loaded in liquid crystal cell, at temperature 25 DEG C, this liquid crystal cell is applied to the voltage of 0V to 20V, and measure to obtain the curve (C-V curve) of capacitance versus voltage, all level can be presented in high voltage region and low-voltage area C-V curve, read electric capacity C ⊥ in low-voltage area, read electric capacity C|| in high voltage region, and be scaled ε ⊥, ε by formula by C ⊥, C|| ||, dielectric anisotropy (Δ ε)=ε ||-ε ⊥.
Threshold voltage (Vth):
As leading portion measures to obtain the curve (C-V curve) of capacitance versus voltage, the magnitude of voltage that software will automatically read electric capacity and rises by level instantly in low-voltage area, this magnitude of voltage is threshold voltage (Vth).
Rotary viscosity (γ 1, unit: mPas):
Record dielectric anisotropy (Δ ε) as aforementioned after, software can be carried out the conversion of rotary viscosity (γ 1) by Δ ε value.
Low-temperature storage (low temperature storage, LTS; Unit: sky):
The liquid-crystal composition of 0.3g is loaded in 7mL vial, then vial is inserted in the constant temperature cryogenic freezing cabinet of-30 DEG C or-40 DEG C, the time that record liquid crystal is separated out, be low-temperature storage number of days.Low-temperature storage number of days is longer, and storage characteristics is better.
Except above character, in order to the liquid-crystal composition of concentrated comparing embodiment and comparative example, the first composition, the second composition and ternary total content in each example also illustrate by table 2 again.With reference to table 2, if liquid-crystal composition is not containing the first composition (as comparative example 1 and comparative example 4) represented by formula I, then, under the environment of-30 DEG C, stores and will start to separate out liquid crystal less than three days.The embodiment 10 that observation composition is roughly the same and comparative example 4 especially can find out clear contrast.Simultaneously, if liquid-crystal composition is not containing the second composition (as comparative example 2) represented by formula II-A or formula II-B, although or simultaneously containing the first to the 3rd composition, but the ternary quantity not sufficient (as comparative example 3) that contains, its low-temperature storage is also come poor than all embodiments.
In addition, the compound that second composition of embodiment 1 ~ 2 is respectively represented by formula II-A naturally and the compound that formula II-B represents form separately, its low-temperature storage is better than comparative example 1 ~ 4 already, and as the embodiment 3 ~ 15 containing formula II-A and formula II-B compound simultaneously, its low-temperature storage is better again.
In sum, the present invention proposes a kind of liquid-crystal composition, and it contains specific first composition, the second composition and the 3rd composition.When liquid-crystal composition contains those compositions, it has good cold tolerance and high Tni, high Δ n and high Δ ε.Adopt this liquid-crystal composition to make LCD assembly, LCD assembly can be made to have the characteristic such as power saving, high-contrast, and be applicable to the use of outdoor environment.
Although explain as above the present invention with embodiment, but it is also not used to limit the present invention.Any the technical staff in the technical field, not departing from the prerequisite of the spirit and scope of the present invention, when doing a little change and retouching.Therefore the protection domain of the application is when being as the criterion with accompanying those as defined in claim.
Claims (10)
1. a liquid-crystal composition, comprising:
The composition represented by formula I,
The composition represented by formula II,
and
The composition represented by formula III, its content is greater than 10 % by weight in this liquid-crystal composition,
wherein
R
1, R
2, R
3and R
4-H, C respectively
1-C
15alkyl or C
2-C
15thiazolinyl, the and-CH in aforesaid alkyl or thiazolinyl
2-can be replaced by-O-,-CO-,-COO-or-OCO-, but prerequisite is heteroatoms does not directly connect each other;
A
1, A
2, A
3and A
4be selected from the group be made up of the sub-THP trtrahydropyranyl of Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene, 2,5-indanes and 2,5-respectively, the hydrogen wherein on Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene and 2,5-indane can be unsubstituted or replace through fluorine atom, and A
1, A
2, A
3and A
4in at least one is 2,5-indane;
A
5, A
6, A
7, A
8and A
9be selected from the group be made up of the sub-THP trtrahydropyranyl of Isosorbide-5-Nitrae-phenylene, Isosorbide-5-Nitrae-cyclohexylidene and 2,5-respectively, the hydrogen wherein on Isosorbide-5-Nitrae-phenylene and Isosorbide-5-Nitrae-cyclohexylidene can be unsubstituted or replace through fluorine atom;
M, n, o and p are 0 or 1 respectively, and m+n+o+p>2;
Z
1, Z
2, Z
3, Z
4, Z
5and Z
6singly-bound ,-CH=CH-,-C ≡ C-,-COO-,-OCO-,-CF respectively
2o-or-OCF
2-, wherein the hydrogen of-CH=CH-can replace through fluorine atom; And
X
1-H ,-F ,-Cl, the C that is unsubstituted
1-C
20alkyl, C through halogen substiuted
1-C
20alkyl, the C be unsubstituted
1-C
20alkoxyl group or the C through halogen substiuted
1-C
20alkoxyl group; And X
1in-CH
2-can be replaced by-O-,-S-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,-CF=CH-,-COO-or-OCO-, prerequisite is that heteroatoms does not directly connect each other.
2. liquid-crystal composition as claimed in claim 1, the composition wherein represented by formula II comprises the composition represented by formula II-A and the composition represented by formula II-B:
wherein
X
2-H ,-F ,-Cl, the C that is unsubstituted
1-C
20alkyl, C through halogen substiuted
1-C
20alkyl, the C be unsubstituted
1-C
20alkoxyl group or the C through halogen substiuted
1-C
20alkoxyl group, but X
2do not comprise-OCF
3; X
2in-CH
2-can be replaced by-O-,-S-,-CH=CH-,-C ≡ C-,-CF=CF-,-CH=CF-,-CF=CH-,-COO-or-OCO-, prerequisite is that heteroatoms does not directly connect each other.
3. liquid-crystal composition as claimed in claim 2, the composition wherein represented by formula II-A accounts for 4 ~ 60 % by weight in this liquid-crystal composition, and the composition represented by formula II-B accounts for 2 ~ 45 % by weight in this liquid-crystal composition.
4. liquid-crystal composition as claimed in claim 3, the composition wherein represented by formula II-A accounts for 12 ~ 60 % by weight in this liquid-crystal composition, and the composition represented by formula II-B accounts for 2 ~ 30 % by weight in this liquid-crystal composition.
5. liquid-crystal composition as claimed in claim 1, the composition wherein represented by formula I accounts for 1 ~ 30 % by weight in this liquid-crystal composition, the composition represented by formula II accounts for 5 ~ 70 % by weight in this liquid-crystal composition, and the composition represented by formula III accounts for 15 ~ 70 % by weight in this liquid-crystal composition.
6. liquid-crystal composition as claimed in claim 5, the composition wherein represented by formula I accounts for 1 ~ 25 % by weight in this liquid-crystal composition, the composition represented by formula II accounts for 15 ~ 70 % by weight in this liquid-crystal composition, and the composition represented by formula III accounts for 15 ~ 60 % by weight in this liquid-crystal composition.
7. liquid-crystal composition as claimed in claim 1, wherein p is not equal to 0, and A
1comprise 2,5-indane.
8. liquid-crystal composition, wherein A as claimed in claim 1
1, A
2, A
3, A
4, A
5, A
6, A
7, A
8and A
9in at least one is
9. liquid-crystal composition, wherein A as claimed in claim 1
5, A
6and A
7in at least one is
10. a LCD assembly, comprises the liquid-crystal composition according to any one of claim 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102149317A TWI487779B (en) | 2013-12-31 | 2013-12-31 | Liquid crystal composition and liquid crystal display device |
| TW102149317 | 2013-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104745201A true CN104745201A (en) | 2015-07-01 |
Family
ID=53585470
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410801969.9A Pending CN104745201A (en) | 2013-12-31 | 2014-12-22 | Liquid crystal composition and liquid crystal display module |
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| Country | Link |
|---|---|
| JP (1) | JP2015129278A (en) |
| CN (1) | CN104745201A (en) |
| TW (1) | TWI487779B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097065A (en) * | 2017-06-20 | 2018-12-28 | 江苏和成显示科技有限公司 | It smectic liquid crystal composition and its is applied in liquid crystal display device |
| CN109097066A (en) * | 2017-06-20 | 2018-12-28 | 江苏和成显示科技有限公司 | It smectic liquid crystal composition and its is applied in liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634346A (en) * | 2012-03-21 | 2012-08-15 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and application thereof as well as liquid crystal display comprising liquid crystal composition |
| CN102660297B (en) * | 2012-04-12 | 2013-12-04 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and its display device |
| CN102757794B (en) * | 2012-07-13 | 2014-05-28 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and display device thereof |
| CN102757793B (en) * | 2012-07-27 | 2014-01-15 | 江苏和成显示科技股份有限公司 | Liquid crystal compound and application thereof |
-
2013
- 2013-12-31 TW TW102149317A patent/TWI487779B/en active
-
2014
- 2014-12-18 JP JP2014256189A patent/JP2015129278A/en active Pending
- 2014-12-22 CN CN201410801969.9A patent/CN104745201A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097065A (en) * | 2017-06-20 | 2018-12-28 | 江苏和成显示科技有限公司 | It smectic liquid crystal composition and its is applied in liquid crystal display device |
| CN109097066A (en) * | 2017-06-20 | 2018-12-28 | 江苏和成显示科技有限公司 | It smectic liquid crystal composition and its is applied in liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI487779B (en) | 2015-06-11 |
| TW201525109A (en) | 2015-07-01 |
| JP2015129278A (en) | 2015-07-16 |
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