POLYMERISABLE COMPOUNDS AND THE USE THEREOF IN LIQUID-CRYSTAL DISPLAYS
申请人:MERCK PATENT GMBH
公开号:US20220127532A1
公开(公告)日:2022-04-28
The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.
The invention relates to the compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds which contains at least one compound of the formula I
in which
R
1
, L
1
, L
2
and L
3
and m have the meanings indicated in claim
1
and to the use of the LC mixtures for an active-matrix display, in particular based on the VA, PSA and PS-VA effect.
LIQUID-CRYSTALLINE MEDIA HAVING HOMEOTROPIC ALIGNMENT
申请人:Merck Patent GmbH
公开号:US20150252265A1
公开(公告)日:2015-09-10
The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy, comprising a low-molecular-weight component and a polymerizable component. The polymerizable component comprises self-aligning, polymerizable mesogens (polymerizable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the LC medium without alignment layers. The invention discloses novel structures for self-alignment additives which have a certain position of the functional groups.
[EN] 4,6-DIFLUORODIBENZOTHIOPHENE DERIVATIVES AND LIQUID-CRYSTAL MEDIUM CONTAINING THESE<br/>[FR] DÉRIVÉS DE 4,6-DIFLUORODIBENZOTHIOPHÈNE ET MILIEU DE CRISTAUX LIQUIDES LES CONTENANT
申请人:MERCK PATENT GMBH
公开号:WO2022084168A1
公开(公告)日:2022-04-28
The present invention relates to 4,6-difluorodibenzothiophene derivatives of formulae I-1 and I-2, to a process for the preparation thereof, to liquid-crystalline (LC) media comprising these derivatives and to electro-optical devices and in particular displays containing these liquid-crystalline media.
COMPOUND HAVING POLYMERIZABLE GROUP, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT
申请人:JNC Corporation
公开号:EP3246305A1
公开(公告)日:2017-11-22
Provided is a polar compound that has high chemical stability and high capability of aligning liquid crystal molecules, and has a large voltage holding ratio when used in a liquid crystal display device.
The compound represented by formula (1) is applied.
For example, R1 is alkyl having 1 to 15 carbons; rings A1 to A5 are 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z5 are a single bond or alkylene having 1 to 10 carbons; a and b are 0 to 4, and a sum of a and b is 4 or less; d is 1 to 4; c and e are 0 to 4; P1 to P3 are a polymerizable group represented by formulas (P-1) to (P-5):
in which M1 to M3 are hydrogen or alkyl having 1 to 5 carbons; and R2 is a group represented by formulas (1a) to (1c):
in which Sp1 to Sp5 are a single bond or alkylene having 1 to 10 carbons; S1 is >CH-; S2 is >C<; and X1 is -OH.