CN103525431A - Quick-responsive liquid crystal composition - Google Patents
Quick-responsive liquid crystal composition Download PDFInfo
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- CN103525431A CN103525431A CN201310415291.6A CN201310415291A CN103525431A CN 103525431 A CN103525431 A CN 103525431A CN 201310415291 A CN201310415291 A CN 201310415291A CN 103525431 A CN103525431 A CN 103525431A
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- RPMUDXVQHUECRE-UHFFFAOYSA-N CC1COC(C)OC1 Chemical compound CC1COC(C)OC1 RPMUDXVQHUECRE-UHFFFAOYSA-N 0.000 description 2
- 0 CCCC(CC(O)=C1)C(*)=C1[Fl] Chemical compound CCCC(CC(O)=C1)C(*)=C1[Fl] 0.000 description 2
- QRMPKOFEUHIBNM-UHFFFAOYSA-N CC1CCC(C)CC1 Chemical compound CC1CCC(C)CC1 QRMPKOFEUHIBNM-UHFFFAOYSA-N 0.000 description 1
- YLUCGURBBYPRDQ-UHFFFAOYSA-N Cc(cc1)cc2c1c(F)c(C)c(F)c2 Chemical compound Cc(cc1)cc2c1c(F)c(C)c(F)c2 YLUCGURBBYPRDQ-UHFFFAOYSA-N 0.000 description 1
- HBXFIXSFKULBOG-UHFFFAOYSA-N Cc1cc(F)c(C)c(F)c1 Chemical compound Cc1cc(F)c(C)c(F)c1 HBXFIXSFKULBOG-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a quick-responsive liquid crystal composition which comprises 50-60wt% of a component A, 1-50wt% of a component B, 1-40wt% of a component C and 0-40wt% of a component D, wherein the compound in formula I in the component A accounts for 1-50wt% of the liquid crystal composition, and the compound in formula II in the component A accounts for 1-50wt% of the liquid crystal composition; the sum of the weight percentage of A, B, C and D is 100%; in addition, 0-0.2% of a component with optical activity based on weight of the liquid crystal composition is further added. The composition has low rotary viscosity, high response speed and appropriate positive dielectric anisotropy, and is particularly applicable to active matrixes TN-TFT (Twisted Nematic-Thin Film Transistor) and IPS-TFT (In-Plane Switching-Thin Film Transistor) liquid crystal display elements and liquid crystal displays quick to respond.
Description
Technical field
The present invention relates to a kind of liquid-crystal composition, refer in particular to a kind of nematic phase type liquid-crystal composition that can be used for manufacturing the quick response of TFT-LCD.
Background technology
In recent years, liquid-crystal display has been substituted traditional cathode-ray tube display, becomes the main product of current field of information display, is widely used in the various indicating meters such as instrument, computer, TV.According to the difference of liquid-crystal display mode, liquid crystal display device can be divided into the various modes such as twisted nematic (TN) pattern, supertwist nematic phase (STN) pattern, coplanar (IPS) pattern, vertical orientation (VA) pattern.
Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display, TFT-LCD), is 21 century one of the most rising technique of display, in fields such as notebook computer, LCD TV, is all widely used.TFT-LCD introduces thin film transistor switch and the Active Matrix LCD At that forms on twisted nematic liquid crystal shows the basis of (TN-LCD), overcome passive matrix show in cross interference, the shortcoming such as quantity of information is few, writing speed is slow, greatly improve display quality, therefore obtained fast development.
The advantage of TFT-LCD can be summarized as following 5 points: 1. service performance is good: low pressure applications, low driving voltage; Panelized, frivolous again, saved a large amount of starting material and usage space; Reduce power consumption; Display quality is from the simplest monochromatic character graphics to high resolving power, high color fidelity of reproduction, high brightness, high-contrast, the video display unit (VDU) of all size model of high response speed; Its display mode has direct viewing type, projection type, perspective formula and the multiple display modes such as reflective.2. environmental protection characteristic is good: TFT-LCD is radiationless, flicker free, health to user is harmless, the particularly appearance of TFT-LCD electronic book, will bring the mankind paperless office into, without paper, print the epoch, cause the revolution that the mankind learn, propagate and record civilized mode.3. the scope of application is wide: TFT-LCD can normally be used within the scope of-20 ℃～50 ℃, through the TFT-LCD of excess temperature consolidation process low-temperature working temperature, even can reach-80 ℃.TFT-LCD not only can be used as mobile terminal demonstration, terminal console shows, also can be used as large-curtain projecting TV set, is the full-scale video display terminal (VDT) of excellent property.4. the level of automation of manufacturing technology is high.5. TFT-LCD is easy to integrated and updates.
Liquid crystal material, as one of important photoelectron material of liquid-crystal display, plays an important role to improving the performance of liquid-crystal display.For showing that the liquid crystal material of use all needs to meet following performance: 1. good chemistry, physics and thermostability, the stability to electric field and electromagnetic radiation; 2. viscosity (γ 1) is low; 3. there is suitable dielectric anisotropy △ ε; 4. suitable optical anisotropy △ n; 5. good with the intermiscibility of other liquid crystalline cpds.And as TFT-LCD liquid crystal material, there is the requirement higher than common liquid crystals material, except above-mentioned characteristic, also should there is the performances such as wider nematic temperature range, very high resistivity, good anti-ultraviolet property, high electric charge conservation rate, low-steam pressure, low ion concns, reduce power consumption.
Liquid crystal material, as one of important photoelectron material of liquid-crystal display, plays an important role to improving the performance of liquid-crystal display.As demonstration liquid crystal material, necessarily require wider nematic temperature range, higher stability, applicable rotary viscosity and the quick response to electric field.But up to the present, also do not find any single liquid crystalline cpd can reach above-mentioned performance requriements, plurality of liquid crystals compound combination must be become to liquid-crystal composition, can meet the performance requriements of liquid crystal display material.
Along with the development of liquid-crystal display industry, people also increase gradually for the demand with the display material of different performance.Therefore the liquid-crystal composition of, continually developing new excellent performance has great importance to liquid-crystal display development.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of can be used for preparing quick response TFT-LCD, nematic phase type liquid-crystal composition that rotary viscosity is low, fast response time.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A liquid-crystal composition for quick response, comprises following component,
Component A: component A consists of jointly the difluoro methylene ether compound shown in general formula I and general formula I I or its combination; Wherein, the weight percentage that compound of Formula I or its combination account for liquid-crystal composition is 1%～50%, the weight percentage that general formula I I compound or its combination account for liquid-crystal composition is 1%～50%, and the weight percentage of the weight sum of the compound of general formula I and general formula I I in liquid-crystal composition is 5%～60%;
B component: B component is comprised of the compound shown in general formula III and combination thereof, the weight percentage that B component accounts for liquid-crystal composition is 1%～50%;
Component C: component C is comprised of compound and the combination thereof shown in general formula I V, and the weight percentage that component C accounts for liquid-crystal composition is 1%～40%;
Component D: component D is comprised of compound and the combination thereof shown in general formula V, and the weight percentage that component D accounts for liquid-crystal composition is 0%～40%;
Wherein,
R
1, R
3be respectively-H ,-Cl ,-F ,-CN ,-OCN ,-OCF
3,-CF
3,-CHF
2,-CH
2f ,-OCHF
2,-SCN ,-NCS ,-SF
5in arbitrary group;
R
2, R
4, R
5, R
6, R
7it is respectively H atom, carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8,
X
1, X
2, X
3, X
4, X
5, X
7be respectively-H or-F;
X
6, X
8be respectively 1. following～4. shown in arbitrary group in group:
①-H、-Cl、-F、-CN、-OCN、-OCF
3、-CF
3、-CHF
2、-CH
2F、-OCHF
2、-SCN、-NCS、-SF
5，
2. the alkene oxygen base that the thiazolinyl that the alkoxyl group that the alkyl that carbonatoms is 1～15, carbonatoms are 1～15, carbonatoms are 2～15, carbonatoms are 2～15,
3. one or more-CH
2-quilt-CH=CH-,-C ≡ C-,-COO-,-OOC-,
-O-or-S-substitute and substitute after Sauerstoffatom in group be not directly connected above-mentioned 2. shown in group,
4. arbitrarily H atom is replaced by fluorine atom or chlorine atom above-mentioned 2., 3. shown in group;
Z
1, Z
2, Z
3, Z
4, Z
5respectively singly-bound ,-CH
2-,-CH
2cH
2-,-(CH
2)
3-,-(CH
2)
4-,-CH=CH-,-C ≡ C-,-COO-,-OOC-,-CF
2o-,-OCH
2-,-CH
2o-,-OCF
2-,-CF
2cH
2-,-CH
2cF
2-,-CF
2cF
2-or-CF=CF-wherein any one;
A
1, A
2, A
3, A
4, A
5, A
6, A
7, A
8, A
9, A
10, A
11, A
12respectively the arbitrary group in singly-bound or following groups:
A, b, d, e, g, h, i, j are respectively wherein arbitrary numerical value of 0,1,2 or 3, and c, f are respectively 1 or 2, and a+b+c≤5, d+e+f≤5.
Owing to having adopted technique scheme, the obtained technical progress of the present invention is:
The invention discloses a kind of liquid-crystal composition of quick response, this liquid-crystal composition excellent performance, there is wide nematic temperature range, suitable positive dielectric anisotropy, suitable optical anisotropy, lower rotary viscosity, low-down overall response time, lower threshold voltage, higher resistivity and higher electric charge conservation rate, be applicable in active matrix electrooptic element and liquid-crystal display, can be used for manufacturing the TFT-LCD of quick response, have broad application prospects and marketable value.
By the adjustment to each composition weight percentage composition in liquid-crystal composition, liquid-crystal composition can obtain different threshold voltages, clearing point and birefringent characteristic, is convenient to use under thick at different liquid crystal cells in different driving voltage, and the scope of application is very wide.Simultaneously, this liquid-crystal composition also has good high-temperature stability and ultraviolet stability, low viscosity, fast-response time, suitable optical anisotropy and suitable dielectric anisotropy, therefore can be applicable to have the Electro-Optical Display of active array addressing, preferably, by the matrix addressing of thin film transistor (TFT), be specially adapted to manufacture active matrix TN-TFT, IPS-TFT liquid crystal display device and the liquid-crystal display of quick response.
Form the general formula I of component A, two class difluoro methylene ether compounds shown in general formula I I, not only there is the necessary general physical properties of liquid crystal material, and to light, thermally-stabilised, there is wider nematic temperature range, good with other Compound Phase dissolubilities.The sub-methoxyl group bridge of difluoro (CF
2o-) introducing, expands the nematic temperature range of liquid crystalline cpd significantly, simultaneously rotary viscosity γ
1also decrease; In addition, due to the sub-methoxyl group bridge of difluoro (CF
2o-) contribution to molecular dipole moment, increases the dielectric anisotropy △ ε of liquid crystalline cpd to some extent.This two class has the adding of liquid crystalline cpd of low rotary viscosity γ 1 and large dielectric anisotropy (△ ε > 0), effectively reduced the threshold voltage of liquid-crystal composition, accelerated the time of response, and improved the low temperature mutual solubility of mixed liquid crystal, can obviously optimize the performance of liquid-crystal composition, be to be highly suitable for low voltage drive, the TN-TFT of response fast or the liquid crystal monomer of IPS-TFT.The use of this two compounds, is significant with liquid crystal material to developing high-end TFT demonstration.
Embodiment
Below in conjunction with embodiment, the present invention is described in further details:
Umber related in following embodiment is weight percentage, and temperature unit is ℃ that concrete meaning and the test condition of other symbols are as follows:
C.p. represent liquid crystal clearing point (℃);
The crystalline state that S-N represents liquid crystal to nematic fusing point (℃);
Δ n represents optical anisotropy, △ n=n
o-n
e, wherein, n
ofor the specific refractory power of ordinary light, n
efor the specific refractory power of extraordinary ray, test condition: 589nm, 25 ℃;
△ ε represents dielectric anisotropy, △ ε=ε
∥-ε
⊥, wherein, ε
∥for being parallel to the specific inductivity of molecular axis, ε
⊥for the specific inductivity perpendicular to molecular axis, test condition: 25 ℃, 1KHz, HP4284A, 5.2 microns of left-handed boxes of TN;
τ represents the time of response (ms), testing tool: DMS-501, test condition: 25 ± 0.5 ℃, the 5.2 microns left-handed boxes of TN;
V
10the optical threshold voltage (V) that represents liquid crystal, V
90the saturation voltage value (V) that represents liquid crystal, test condition: 25 ℃, the 5.2 microns left-handed boxes of TN;
γ 1 represents rotary viscosity (mPas), test condition: 25 ± 0.5 ℃.
A liquid-crystal composition for quick response, comprises component A, B component, component C and component D, also includes in addition opticity component, and the interpolation weight of described opticity component is 0%～0.2% of liquid-crystal composition weight;
Component A: component A consists of jointly the difluoro methylene ether compound shown in general formula I and general formula I I or its combination; Wherein, the weight percentage that compound of Formula I or its combination account for liquid-crystal composition is 1%～50%, the weight percentage that general formula I I compound or its combination account for liquid-crystal composition is 1%～50%, and the weight percentage that the content sum of compound of Formula I and general formula I I compound accounts for liquid-crystal composition is 5%～60%;
B component: B component is comprised of the compound shown in general formula III and combination thereof; The weight percentage that B component accounts for liquid-crystal composition is 1～50%;
Component C: component C is comprised of compound and the combination thereof shown in general formula I V; The weight percentage that component C accounts for liquid-crystal composition is 1～40%;
Component D: component D is comprised of compound and the combination thereof shown in general formula V; The weight percentage that component D accounts for liquid-crystal composition is 0～40%;
Wherein,
R
1, R
3be respectively-H ,-Cl ,-F ,-CN ,-OCN ,-OCF
3,-CF
3,-CHF
2,-CH
2f ,-OCHF
2,-SCN ,-NCS ,-SF
5in arbitrary group;
R
2, R
4, R
5, R
6, R
7it is respectively H atom, carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8,
R
2, R
4, R
5, R
6, R
7preferably from H atom, carbonatoms is the alkyl that 1～5 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～5, carbonatoms is the alkoxyl group that 1～5 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～5, carbonatoms is the alkenyl that 2～6 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～6, carbonatoms is wherein arbitrary group of 3～6 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～6,
X
1, X
2, X
3, X
4, X
5, X
7be respectively-H or-F;
X
6, X
8be respectively 1. following～4. shown in arbitrary group in group:
①-H、-Cl、-F、-CN、-OCN、-OCF
3、-CF
3、-CHF
2、-CH
2F、-OCHF
2、-SCN、-NCS、-SF
5，
2. the alkene oxygen base that the thiazolinyl that the alkoxyl group that the alkyl that carbonatoms is 1～15, carbonatoms are 1～15, carbonatoms are 2～15, carbonatoms are 2～15,3. one or more-CH
2-quilt-CH=CH-,-C ≡ C-,-COO-,-OOC-,
-O-or-S-substitute and substitute after Sauerstoffatom in group be not directly connected above-mentioned 2. shown in group,
4. arbitrarily H atom is replaced by fluorine atom or chlorine atom above-mentioned 2., 3. shown in group;
X
6, X
8preferably from 5. following～8. shown in arbitrary group in group:
⑤-H、-Cl、-F、-CN、-OCN、-OCF
3、-CF
3、-CHF
2、-CH
2F、-OCHF
2、-SCN、-NCS、-SF
5，
6. the alkene oxygen base that contain the alkyl of 1～5 carbon atom, the alkoxyl group that contains 1～5 carbon atom, the thiazolinyl that contains 2～5 carbon atoms, contains 2～5 carbon atoms, 7. one or more-CH
2-quilt-CH=CH-,-C ≡ C-,-COO-,-OOC-,
-O-or-S-substitute and substitute after Sauerstoffatom in group be not directly connected above-mentioned 6. shown in group,
8. arbitrarily H atom is replaced by fluorine atom or chlorine atom above-mentioned 6., 7. shown in group;
Z
1, Z
2, Z
3, Z
4, Z
5respectively singly-bound ,-CH
2-,-CH
2cH
2-,-(CH
2)
3-,-(CH
2)
4-,-CH=CH-,-C ≡ C-,-COO-,-OOC-,-CF
2o-,-OCH
2-,-CH
2o-,-OCF
2-,-CF
2cH
2-,-CH
2cF
2-,-CF
2cF
2-or-CF=CF-wherein any one;
A
1, A
2, A
3, A
4, A
5, A
6, A
7, A
8, A
9, A
10, A
11, A
12respectively the arbitrary group in singly-bound or following groups:
A, b, d, e, g, h, i, j are respectively wherein arbitrary numerical value of 0,1,2 or 3, and c, f are respectively 1 or 2, and a+b+c≤5, d+e+f≤5.
It is 22%～30% component A, 29%～48% B component, 18%～38% component C and 0%～15% component D that described liquid-crystal composition preferably comprises weight percentage; Wherein, the weight percentage that the compound of Formula I in component A accounts for liquid-crystal composition is 14%～24%, and the weight percentage that the general formula I I compound in component A accounts for liquid-crystal composition is 6%～10%; The weight percentage sum of said components A, B, C, D is 100%; Also add in addition 0%～0.2% opticity component of described liquid-crystal composition weight sum.
Compound of Formula I in described component A is preferably from the compound shown in I-a～I-s:
Wherein ,-be (F)-H or-F.
General formula I I compound in described component A is preferably from the compound shown in II-a～II-k:
Wherein ,-be (F)-H or-F.
The described compound of formula III as B component is preferably from the compound shown in III-a～III-i:
Wherein ,-be (F)-H or-F;
R
5, R
6respectively that carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8.
The described general formula I V compound as component C is preferably from the compound shown in IV-a～IV-l:
Wherein ,-be (F)-H or-F;
R
6that carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8.
The described general formula V compound as component D is preferably from the compound shown in V-a～V-v:
Wherein ,-be (F)-H or-F;
R
7that carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8.
The following examples 1～11 take respectively the liquid crystalline cpd of general formula I, II, III, IV, V in proportion, and add on this basis opticity component, are prepared into liquid-crystal composition.The various liquid crystal monomers that use all can synthesize by known method, or obtain by commercial sources.The preparation method of liquid-crystal composition takes ordinary method, for example, at high temperature the liquid crystal monomer of various components is dissolved in solvent and is mixed, and then under reduced pressure, steams and desolventizes, and obtains liquid-crystal composition; Or take the methods such as heating, ultrasonic wave, suspension that liquid crystal monomer is mixed in proportion and is made.The liquid-crystal composition of gained is filled in and between liquid-crystal display two substrates, carries out performance test.The performance parameter test result of the liquid-crystal composition of the monomer structure of particular compound, consumption (weight percentage), gained is all listed in table.The corresponding embodiment 1～11 in table 1～11.
The component proportion of the liquid-crystal composition of table 1 embodiment 1 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 2 embodiment 2 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 3 embodiment 3 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 4 embodiment 4 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 5 embodiment 5 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 6 embodiment 6 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 7 embodiment 7 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 8 embodiment 8 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 9 embodiment 9 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 10 embodiment 10 and performance perameter thereof
The component proportion of the liquid-crystal composition of table 11 embodiment 11 and performance perameter thereof
Performance perameter from the liquid-crystal composition shown in embodiment 1～11, liquid-crystal composition of the present invention has applicable positive dielectric anisotropy, less threshold voltage, higher clearing point, well low-temperature stability, lower rotary viscosity and response speed faster, is specially adapted to manufacture active matrix TN-TFT, IPS-TFT liquid crystal display device and liquid-crystal display low voltage drive, response fast.
Although the present invention has only enumerated particular compound and the proportioning consumption (weight percentage) thereof of above-mentioned 11 embodiment, and carried out performance test, but liquid-crystal composition of the present invention can be on the basis of above-described embodiment, utilize the preferred liquid crystalline cpd of the liquid crystalline cpd of general formula I involved in the present invention, II, III, IV, V representative and general formula I, II, III, IV, V further expand and revise, by its proportioning consumption is suitably adjusted, all can reach object of the present invention.
Claims (7)
1. the liquid-crystal composition responding fast, is characterized in that: described liquid-crystal composition comprises:
Component A: component A consists of jointly the difluoro methylene ether compound shown in general formula I and general formula I I or its combination; Wherein, the weight percentage that compound of Formula I or its combination account for liquid-crystal composition is 1%～50%, the weight percentage that general formula I I compound or its combination account for liquid-crystal composition is 1%～50%, and the weight percentage of the weight sum of the compound of general formula I and general formula I I in liquid-crystal composition is 5%～60%;
B component: B component is comprised of the compound shown in general formula III and combination thereof, the weight percentage that B component accounts for liquid-crystal composition is 1%～50%;
Component C: component C is comprised of compound and the combination thereof shown in general formula I V, and the weight percentage that component C accounts for liquid-crystal composition is 1%～40%;
Component D: component D is comprised of compound and the combination thereof shown in general formula V, and the weight percentage that component D accounts for liquid-crystal composition is 0%～40%;
Wherein,
R
1, R
3be respectively-H ,-Cl ,-F ,-CN ,-OCN ,-OCF
3,-CF
3,-CHF
2,-CH
2f ,-OCHF
2,-SCN ,-NCS ,-SF
5in arbitrary group;
R
2, R
4, R
5, R
6, R
7it is respectively H atom, carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8,
X
1, X
2, X
3, X
4, X
5, X
7be respectively-H or-F;
X
6, X
8be respectively 1. following～4. shown in arbitrary group in group:
①-H、-Cl、-F、-CN、-OCN、-OCF
3、-CF
3、-CHF
2、-CH
2F、-OCHF
2、-SCN、-NCS、-SF
5，
2. the alkene oxygen base that the thiazolinyl that the alkoxyl group that the alkyl that carbonatoms is 1～15, carbonatoms are 1～15, carbonatoms are 2～15, carbonatoms are 2～15,
3. one or more-CH
2-quilt-CH=CH-,-C ≡ C-,-COO-,-OOC-,
-O-or-S-substitute and substitute after Sauerstoffatom in group be not directly connected above-mentioned 2. shown in group,
4. arbitrarily H atom is replaced by fluorine atom or chlorine atom above-mentioned 2., 3. shown in group;
Z
1, Z
2, Z
3, Z
4, Z
5respectively singly-bound ,-CH
2-,-CH
2cH
2-,-(CH
2)
3-,-(CH
2)
4-,-CH=CH-,-C ≡ C-,-COO-,-OOC-,-CF
2o-,-OCH
2-,-CH
2o-,-OCF
2-,-CF
2cH
2-,-CH
2cF
2-,-CF
2cF
2-or-CF=CF-wherein any one;
A
1, A
2, A
3, A
4, A
5, A
6, A
7, A
8, A
9, A
10, A
11, A
12respectively the arbitrary group in singly-bound or following groups:
A, b, d, e, g, h, i, j are respectively wherein arbitrary numerical value of 0,1,2 or 3, and c, f are respectively 1 or 2, and a+b+c≤5, d+e+f≤5.
2. the liquid-crystal composition of a kind of quick response according to claim 1, is characterized in that:
Compound of Formula I in described component A is one or more in compound shown in I-a～I-s:
General formula I I compound in described component A is one or more in compound shown in II-a～II-k:
Wherein ,-be (F)-H or-F.
3. the liquid-crystal composition of a kind of quick response according to claim 1, is characterized in that: the described compound of formula III as B component is one or more in compound shown in III-a～III-i:
Wherein ,-be (F)-H or-F;
R
4, R
5respectively that carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8.
4. the liquid-crystal composition of a kind of quick response according to claim 1, is characterized in that: the described general formula I V compound as component C is one or more in compound shown in IV-a～IV-l:
Wherein ,-be (F)-H or-F;
R
6that carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8.
5. the liquid-crystal composition of a kind of quick response according to claim 1, is characterized in that: the described general formula V compound as component D is one or more in compound shown in V-a～V-v:
Wherein ,-be (F)-H or-F;
R
7that carbonatoms is the alkyl that 1～10 alkyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkoxyl group that 1～10 alkoxyl group or H atom is replaced by fluorine atom arbitrarily carbonatoms are 1～10, carbonatoms is the alkenyl that 2～10 alkenyl or H atom is replaced by fluorine atom arbitrarily carbonatoms are 2～10, carbonatoms is wherein arbitrary group of 3～8 alkenyloxy or H atom is replaced by fluorine atom arbitrarily the carbonatoms alkenyloxy that is 3～8.
6. according to the liquid-crystal composition of a kind of quick response described in claim 1～5 any one, it is characterized in that: described liquid-crystal composition also comprises opticity component, the interpolation weight of described opticity component is 0%～0.2% of liquid-crystal composition weight.
7. the liquid-crystal composition of a kind of quick response according to claim 6, is characterized in that: it is 22%～30% component A, 29%～48% B component, 18%～38% component C and 0%～15% component D that described liquid-crystal composition comprises weight percentage; Wherein, the weight percentage that the compound of Formula I in component A accounts for liquid-crystal composition is 14%～24%, and the weight percentage that the general formula I I compound in component A accounts for liquid-crystal composition is 6%～10%; The weight percentage sum of said components A, B, C, D is 100%; Also add in addition 0%～0.2% opticity component of described liquid-crystal composition weight sum.
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| CN107955629A (en) * | 2016-10-14 | 2018-04-24 | 石家庄诚志永华显示材料有限公司 | A kind of positive dielectricity liquid-crystal composition |
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Inventor after: Hua Ruimao Inventor after: Shang Hongyong Inventor after: Zhang Limei Inventor after: Xia Zhiguo Inventor after: Zheng Chengwu Inventor after: Zhang Jianli Inventor after: Meng Jinsong Inventor before: Hua Ruimao Inventor before: Xia Zhiguo Inventor before: Zheng Chengwu Inventor before: Zhang Jianli Inventor before: Meng Jinsong |
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