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Liquid crystalline medium

A technology of liquid crystal media and atoms, applied in liquid crystal materials, instruments, organic chemistry, etc.

Active Publication Date: 2017-03-08
MERCK PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the highly birefringent LC materials known from the prior art generally also have simultaneously high rotational viscosities, which in turn have a negative influence on the response time

Method used

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Examples

Experimental program
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Embodiment M1

[0398]

Embodiment M2

[0400]

[0401]

Embodiment M3

[0403]

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PUM

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Abstract

The invention relates to a liquid crystalline medium, and particularly to a compound of a formula I, wherein R<1> and X<1> are defined in the claim 1. Furthermore the invention relates to the liquid crystalline medium which comprises at least one compound of the formula I, and also relates to an electro-optic liquid crystal display which comprises the compound of the formula I. Particularly the invention relates to use in TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS or PS-FFS and positive VA display devices, shutter glasses for a 3D effect and LC lens.

Description

technical field [0001] The invention relates to a liquid-crystalline medium (LC medium), its use for electro-optical purposes and an LC display comprising the medium. Background technique [0002] Liquid crystals are in principle used as dielectrics in display devices, since the optical properties of this substance can be changed by an applied voltage. Electro-optic devices based on liquid crystals are very well known to those skilled in the art and can be based on a variety of effects. Examples of such devices are cells with dynamic scattering, DAP (distorted alignment) panels, host / guest panels, TN panels with "twisted nematic" structure, STN ("super twisted nematic") panels, SBE ("Super Birefringent Effect") panels and OMI ("Optical Mode Interference") panels. The most common display devices are based on the Schadt-Helfrich effect and have a twisted nematic structure. In addition, there are panels that operate with an electric field parallel to the substrate and liquid...

Claims

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Application Information

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IPC IPC(8): C09K19/30C09K19/44
CPCC09K19/3098C09K19/44C09K19/46C07C2601/14C07C2601/16C09K19/3003C09K19/3028C09K2019/301C09K19/42C09K19/12C09K19/2007C09K19/3402C09K19/52G02B30/24G02B30/27G02F1/13706C07C13/28C07C22/08C07C43/225C09K19/3405C09K19/3491C09K19/54C09K19/542C09K2019/3408C09K2019/3422G02F1/137
Inventor A·格茨C·霍克L·利曹M·格贝尔
Owner MERCK PATENT GMBH
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