LIQUID-CRYSTALLINE MEDIUM

• Main Authors: WINDHORST MARTINA, BAUER MONIKA, REIFFENRATH VOLKER, BREMER MATTHIAS, HIRSCHMANN HARALD
• Format: Patent
• Language: English; Korean
• Published: 21.06.2023
• 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; 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; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The present invention relates to a liquid-crystalline medium comprising at least one compound of formula I below, and the use thereof for an active-matrix display, particularly based on a VA, PSA, PS-VA, PA-VA, PALC, FFS, PS-FFS, IPS, or PS-IPS effect. In formula I, the individual radicals each, independently of one another and identically or differently on each occurrence, have the following meanings. R^11 represents an alkenyl radical having 2-12 C atoms, L^1 and L^2 represent F, Cl, CF_3, OCF_3, or CHF_2, n represents 1 or 2, and A represents a trans-1,4-cyclohexylene radical or a 1,4-phenylene radical, which can also be substituted by one or two identical or different radicals L^1. 본 발명은, 하기 화학식 I의 화합물을 하나 이상 포함하는 액정 매질, 및 특히 VA, PSA, PS-VA, PA-VA, PALC, FFS, PS-FFS, IPS 또는 PS-IPS 효과에 기초한 능동-매트릭스 디스플레이를 위한 이의 용도에 관한 것이다: JPEGpat00194.jpg2691 상기 식에서, 개별적인 라디칼은, 각각 서로 독립적으로 및 각각의 경우 동일하거나 상이하게, 하기 의미를 가진다: R11은 탄소수 2 내지 12의 알켄일 라디칼을 나타내고, L1 및 L2는 F, Cl, CF3, OCF3 또는 CHF2를 나타내고, n은 1 또는 2를 나타내고, A는, 1개 또는 2개의 동일하거나 상이한 라디칼 L1로 또한 치환될 수 있는, 트랜스-1,4-사이클로헥실렌 라디칼 또는 1,4-페닐렌 라디칼을 나타낸다.