JPWO2014065231A1 - ネマチック液晶組成物及びこれを用いた液晶表示素子 - Google Patents
ネマチック液晶組成物及びこれを用いた液晶表示素子 Download PDFInfo
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 113
- 239000000203 mixture Substances 0.000 title claims abstract description 80
- 239000004988 Nematic liquid crystal Substances 0.000 title abstract description 5
- 239000007791 liquid phase Substances 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- RGOVYLWUIBMPGK-UHFFFAOYSA-N nonivamide Chemical compound CCCCCCCCC(=O)NCC1=CC=C(O)C(OC)=C1 RGOVYLWUIBMPGK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 67
- 125000004432 carbon atom Chemical group C* 0.000 claims description 57
- 125000000217 alkyl group Chemical group 0.000 claims description 22
- 125000003342 alkenyl group Chemical group 0.000 claims description 20
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- -1 piperidine-1,4-diyl group Chemical group 0.000 claims description 9
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- 125000003302 alkenyloxy group Chemical group 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 125000001153 fluoro group Chemical group F* 0.000 claims description 5
- 125000005407 trans-1,4-cyclohexylene group Chemical group [H]C1([H])C([H])([H])[C@]([H])([*:2])C([H])([H])C([H])([H])[C@@]1([H])[*:1] 0.000 claims description 4
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 claims description 3
- 125000005450 2,3-difluoro-1,4-phenylene group Chemical group [H]C1=C([*:2])C(F)=C(F)C([*:1])=C1[H] 0.000 claims description 3
- 125000005449 2-fluoro-1,4-phenylene group Chemical group [H]C1=C([*:2])C([H])=C(F)C([*:1])=C1[H] 0.000 claims description 3
- 125000005653 3,5-difluoro-1,4-phenylene group Chemical group [H]C1=C(F)C([*:2])=C(F)C([H])=C1[*:1] 0.000 claims description 3
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical group CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 2
- 125000005451 3-fluoro-1,4-phenylene group Chemical group [H]C1=C([*:1])C([H])=C(F)C([*:2])=C1[H] 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 2
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 7
- 239000012769 display material Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 9
- 210000004027 cell Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000000704 physical effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 0 C*c1c(C)c(-c2c(*)c(C)c(*)c(C)c2C)c(C)c(*)c1* Chemical compound C*c1c(C)c(-c2c(*)c(C)c(*)c(C)c2C)c(C)c(*)c1* 0.000 description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical class C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical class C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000002296 dynamic light scattering Methods 0.000 description 2
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 125000004974 2-butenyl group Chemical group C(C=CC)* 0.000 description 1
- DYMKGQRODFWYQX-UHFFFAOYSA-N COC(C(N)=C)=O Chemical compound COC(C(N)=C)=O DYMKGQRODFWYQX-UHFFFAOYSA-N 0.000 description 1
- ZZPVBBLZGNPURP-UHFFFAOYSA-N COCC1(N)OC1 Chemical compound COCC1(N)OC1 ZZPVBBLZGNPURP-UHFFFAOYSA-N 0.000 description 1
- JUBOISWHAUYTDY-UHFFFAOYSA-N COCC1CC2OC2CC1 Chemical compound COCC1CC2OC2CC1 JUBOISWHAUYTDY-UHFFFAOYSA-N 0.000 description 1
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 1
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000008423 fluorobenzenes Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
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- 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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- C09K19/3001—Cyclohexane rings
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Abstract
Description
また、式(A)及び式(G)にΔεがほぼゼロである式(III−F31)を組み合わせた液晶組成物(特許文献6参照)が開示されている。しかし、液晶表示素子の製造工程では液晶組成物を液晶セルに注入する際の極低圧で、蒸気圧が低い化合物は揮発してしまうため、その含有量を増やすことが出来ないと考えられていた。このため、該液晶組成物は式(III−F31)の含有量を限定してしまっており、大きなΔnを示すものの、粘度が著しく高いという問題があった。
具体的に一般式(I)の化合物は、式(I−A1)、式(I−A2)、式(I−A3)、式(I−A4)、式(I−A5)、式(I−B1)、式(I−B2)、式(I−B3)、式(I−B4)、(I−B5)又は式(I−B6)
本発明の液晶組成物は、2種以上の一般式(I)の化合物を含有することも好ましく、その場合、式(I−A4)、式(I−B4)又は式(I−B5)を同時に2種以上含有することが更に好ましい。
第三成分は、一般式(III−A)、(III−D)、(III−F)、(III−G)及び(III−H)から選ばれる化合物であることが更に好ましい。また、一般式(III−A)で表される化合物においては、R5は炭素原子数2から5のアルケニル基、R6は炭素原子数1から5のアルキル基又は炭素原子数2から5のアルケニル基であることが好ましい。
実施例において化合物の記載について以下の略号を用いる。
(側鎖)
-n -CnH2n+1 炭素数nの直鎖状のアルキル基
n- CnH2n+1- 炭素数nの直鎖状のアルキル基
-On -OCnH2n+1 炭素数nの直鎖状のアルコキシル基
nO- CnH2n+1O- 炭素数nの直鎖状のアルコキシル基
-V -CH=CH2
V- CH2=CH-
-V1 -CH=CH-CH3
1V- CH3-CH=CH-
-2V -CH2-CH2-CH=CH3
V2- CH3=CH-CH2-CH2-
-2V1 -CH2-CH2-CH=CH-CH3
1V2- CH3-CH=CH-CH2-CH2
(環構造)
Δn :20℃における屈折率異方性
Δε :25℃における誘電率異方性
η :20℃における粘度(mPa・s)
γ1 :20℃における回転粘性(mPa・s)
K33 :20℃における弾性定数K33(pN)
(比較例1、実施例1、実施例2、実施例3及び実施例4)
LC−A(比較例1)、LC−1(実施例1)、LC−2(実施例2)、LC−3(実施例3)及びLC−4(実施例4)の液晶組成物を調製し、その物性値を測定した。液晶組成物の構成とその物性値の結果は表1のとおりであった。
(比較例2、実施例5、実施例6及び実施例7)
LC−B(比較例2)、LC−5(実施例5)、LC−6(実施例6)及びLC−7(実施例7)の液晶組成物を調製し、その物性値を測定した。液晶組成物の構成とその物性値の結果は表2のとおりであった。
(比較例3、実施例8、実施例9及び実施例10)
LC−C(比較例3)、LC−8(実施例8)、LC−9(実施例9)及びLC−10(実施例10)の液晶組成物を調製し、その物性値を測定した。液晶組成物の構成とその物性値の結果は表3のとおりであった。
Claims (20)
- 25℃における誘電率異方性(Δε)が−2.0から−8.0の範囲であり、20℃における屈折率異方性(Δn)が0.08から0.14の範囲であり、20℃における粘度(η)が10から30mPa・sの範囲であり、20℃における回転粘性(γ1)が60から130mPa・sの範囲であり、ネマチック相−等方性液体相転移温度(Tni)が60℃から120℃の範囲である請求項1に記載の液晶組成物。
- 第二成分として、一般式(II)
- 第二成分の含有量が10から90質量%である請求項1から3のいずれか一項に記載の液晶組成物。
- 第二成分として、一般式(II−A1)から一般式(II−A5)で表される化合物群から選ばれる1種又は2種以上の化合物を含有する請求項5に記載の液晶組成物。
- 一般式(I)、一般式(II−A1)及び一般式(III−A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II−A3)及び一般式(III−A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II−B1)及び一般式(III−A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II−B2)及び一般式(III−A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II−B3)及び一般式(III−A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II−B4)及び一般式(III−A)を同時に含有する請求項8に記載の液晶組成物。
- 重合性化合物を1種又は2種以上含有する請求項1から15のいずれか1項に記載の液晶組成物。
- 請求項1から17のいずれか1項に記載の液晶組成物を用いた液晶表示素子。
- 請求項1から17のいずれか1項に記載の液晶組成物を用いたアクティブマトリックス駆動用液晶表示素子。
- 請求項1から17のいずれか1項に記載の液晶組成物を用いたVAモード、PSAモード、PSVAモード、IPSモード又はECBモード用液晶表示素子。
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CN112940747B (zh) * | 2019-12-20 | 2023-05-05 | 石家庄诚志永华显示材料有限公司 | 液晶组合物、液晶显示元件、液晶显示器 |
CN113667492B (zh) * | 2021-09-01 | 2024-06-25 | 重庆汉朗精工科技有限公司 | 一种快速响应的负性液晶组合物及其应用 |
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