JP2017057413A - 液晶媒体 - Google Patents
液晶媒体 Download PDFInfo
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- JP2017057413A JP2017057413A JP2016241607A JP2016241607A JP2017057413A JP 2017057413 A JP2017057413 A JP 2017057413A JP 2016241607 A JP2016241607 A JP 2016241607A JP 2016241607 A JP2016241607 A JP 2016241607A JP 2017057413 A JP2017057413 A JP 2017057413A
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- liquid crystal
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- 0 *C(CC1)CCC1C1CCC(CCC=C)CC1 Chemical compound *C(CC1)CCC1C1CCC(CCC=C)CC1 0.000 description 7
- OZHJUCROENERIT-ONEGZZNKSA-N C/C=C/c(cc1)ccc1-c1ccc(C)cc1 Chemical compound C/C=C/c(cc1)ccc1-c1ccc(C)cc1 OZHJUCROENERIT-ONEGZZNKSA-N 0.000 description 1
- RSOILICUEWXSLA-UHFFFAOYSA-N CC(C)(C1)N(C)C(C)(C)CC1OC(CCCCCCCCC(OC1CC(C)(C)N(C)C(C)(C)C1)=O)=O Chemical compound CC(C)(C1)N(C)C(C)(C)CC1OC(CCCCCCCCC(OC1CC(C)(C)N(C)C(C)(C)C1)=O)=O RSOILICUEWXSLA-UHFFFAOYSA-N 0.000 description 1
- XITRBUPOXXBIJN-UHFFFAOYSA-N CC(C)(C1)NC(C)(C)CC1OC(CCCCCCCCC(OC1CC(C)(C)NC(C)(C)C1)=O)=O Chemical compound CC(C)(C1)NC(C)(C)CC1OC(CCCCCCCCC(OC1CC(C)(C)NC(C)(C)C1)=O)=O XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 1
- KIBVWJSSPWYCAU-UHFFFAOYSA-N CCCCCCCCCCCCCOCC(COc(cc1)cc(O)c1-c1nc(-c2c(C)cc(C)cc2)nc(-c2ccc(C)cc2C)n1)OCCCCCCCCCCCCOCC(COc(cc1)cc(O)c1-c1nc(-c2c(C)cc(C)cc2)nc(-c2ccc(C)cc2C)n1)O Chemical compound CCCCCCCCCCCCCOCC(COc(cc1)cc(O)c1-c1nc(-c2c(C)cc(C)cc2)nc(-c2ccc(C)cc2C)n1)OCCCCCCCCCCCCOCC(COc(cc1)cc(O)c1-c1nc(-c2c(C)cc(C)cc2)nc(-c2ccc(C)cc2C)n1)O KIBVWJSSPWYCAU-UHFFFAOYSA-N 0.000 description 1
- RRRXUCMQOPNVAT-UHFFFAOYSA-N Cc(cc1)ccc1-c1ccc(C=C)cc1 Chemical compound Cc(cc1)ccc1-c1ccc(C=C)cc1 RRRXUCMQOPNVAT-UHFFFAOYSA-N 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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Abstract
Description
液晶ディスプレイのさらに有望なタイプは、いわゆる軸対称微小領域(axially symmetric microdomain)略してASM)ディスプレイであり、それは好ましくはプラズマアレイ(PA LCD;“plasma addressed liquid crystal displays”から)により駆動される。
Zは、単結合、−C2H4−、−CH=CH−、−(CH2)4−、−(CH2)3O−、−O(CH2)3−、−CH=CHCH2CH2−、−CH2CH2CH=CH−、−CH2O−、−OCH2−、−CF2O−、−OCF2−、−COO−、−OCO−、−C2F4−、−CHFCF2−、−CF=CF−、−CH=CF−、−CF=CH−、−CH2−を表す。
alkenylおよびalkenyl*は、互いに独立してそれぞれ2〜6個の炭素原子を有する直鎖アルケニル基、好ましくはビニル、1E−アルケニルまたは3E−アルケニルを表す。
式中、LおよびEはそれぞれ、1,4−ジ置換ベンゼンおよびシクロヘキサン環、4,4’−ジ置換ビフェニル、フェニルシクロヘキサンおよびシクロヘキシルシクロヘキサン環系、2,5−ジ置換ピリミジンおよび1,3−ジオキサン環、2,6−ジ置換ナフタレン、ジ−およびテトラヒドロナフタレン、キナゾリンおよびテトラヒドロキナゾリンからなる群より選ばれる炭素環またはヘテロ環であり、
Gは、−CH=CH−、−N(O)=N−、−CH−CQ−、−CH=N(O)−、−C≡C−、−CH2−CH2−、−CO−O−、−CH2−O−、−CO−S−、−CH2−S−、−CH=N−、−COO−Phe−COO−、−CF2O−、−CF=CF−、−OCF2−、−OCH2−、−(CH2)4−、−(CH2)3O−またはC−C単結合であり、
Qはハロゲン、好ましくはCl、または−CNであり、
R9およびR10は、炭素数18まで、好ましくは8までのアルキル、アルケニル、アルコキシ、アルカノイルオキシまたはアルコキシカルボニルオキシであるが、これらの基の一つは、CN、NC、NO2、NCS、CF3、OCF3、F、ClまたはBrを表してもよい。
V0は、20℃におけるしきい電圧、容量性(V)を表し、
Δnは、20℃にて589nmで測定された光学異方性を表し、
Δεは、20℃、1kHzでの誘電異方性を表し、
cp.は、透明点(℃)を表し、
γ1は、20℃で測定した回転粘度(mPa・s)を表し、
LTSは、テストセルの中で試験された低温安定性を表し、
HR(20)は、20℃での電圧保持率[%]を表し、
HR(100)は、100℃にて5分後の電圧保持率[%]を表し、
HR(UV)は、UV暴露の後の電圧保持率[%]を表す。
Claims (18)
- 6〜45の範囲のγ1/Δn2の比の値、60℃を越える透明点および−2.3以下のΔεを有することを特徴とする、負の誘電異方性を有する極性化合物の混合物に基づいた液晶媒体。
- 60〜90℃の透明点を有することを特徴とする請求項1記載の液晶媒体。
- −2.3〜−5.5のΔε値を有することを特徴とする請求項1または2記載の液晶媒体。
- 1.8〜2.3Vの範囲のしきい値(容量性)を有していることを特徴とする請求項1〜9のいずれかに記載の液晶媒体。
- 式IA、IBおよび/またはIIで表される化合物を、1、2、3、4、5または6種含有することを特徴とする請求項1〜12のいずれかに記載の液晶媒体。
- 混合物全体に対する式IAおよび/またはIBの化合物の割合が、少なくとも10重量%であることを特徴とする請求項1〜13のいずれかに記載の液晶媒体。
- 混合物全体に対する式IIの化合物の割合が、少なくとも10重量%であることを特徴とする請求項1〜14のいずれかに記載の液晶媒体。
- 混合物全体に対する式IIIの化合物の割合が、少なくとも5重量%であることを特徴とする請求項1〜15のいずれかに記載の液晶媒体。
- 10〜40重量%の1種または2種以上の式IAおよびIBの化合物、および10〜40重量%の1種または2種以上の式IIの化合物から実質的になることを特徴とする請求項1〜16のいずれかに記載の液晶媒体。
- 誘電体として、請求項1〜17のいずれかに記載の液晶媒体を有することを特徴とする、ECB、PALCD、FFSまたはIPS効果に基づくアクティブマトリックスを備えた電気光学ディスプレイ。
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