LIQUID-CRYSTALLINE MEDIUM

• Main Authors: MARTIN ENGEL, NICO JOHN, MARTINA WINDHORST, REIFFENRATH VOLKER, MARCUS REUTER, BREMER MATTHIAS, CHRISTOPH MARTEN, HARALD HIRSCHMANN, MONIKA BAUER, ROCCO FORTTE
• Format: Patent
• Language: English; Japanese
• Published: 19.03.2020
• Subjects: ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; HETEROCYCLIC COMPOUNDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC CHEMISTRY; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide a liquid-crystalline medium.SOLUTION: There are provided a liquid-crystalline medium comprising at least one compound of the formula I, and the use of such liquid-crystalline medium for an active-matrix display, in particular based on the VA, PSA, PA-VA, PS-VA, PALC, IPS, PS-IPS, FFS or PS-FFS effect. (In the formula, Rand Rare each independently a C1-15 alkyl or alkoxy group, or the like; and Land Lare each independently F, Cl, CFor CHF.)SELECTED DRAWING: None 【課題】液晶媒体の提供。【解決手段】少なくとも１種類の式Ｉの化合物を含む液晶媒体、及びアクティブマトリックスディスプレイ、特にＶＡ、ＰＳＡ、ＰＡ−ＶＡ、ＰＳ−ＶＡ、ＰＡＬＣ、ＩＰＳ、ＰＳ−ＩＰＳ、ＦＦＳまたはＰＳ−ＦＦＳ効果を基礎とするアクティブマトリックスディスプレイへのこれら液晶媒体の使用。（Ｒ１およびＲ１＊は、それぞれ互いに独立に、Ｃ１〜１５個のアルキル又はアルコキシ基等；Ｌ１及びＬ２は、それぞれ互いに独立に、Ｆ、Ｃｌ、ＣＦ３又はＣＨＦ２）【選択図】なし