公开(公告)号：EP2628779B1

公开(公告)日：2017-05-17

申请号：EP13000511.9

申请日：2013-02-01

Applicant: Merck Patent GmbH

Inventor： Haensel, Helmut ,  Pohle, Andreas ,  Yun, Chang-Jun ,  Yun, Yong-Kuk ,  Lee, Hee-Kyu ,  Choi, Chang-Suk

IPC: C09K19/20 ,  C09K19/30 ,  C09K19/34 ,  C09K19/44 ,  C09K19/06 ,  C09K19/04 ,  C09K19/12 ,  C09K19/54

CPC classification number: C09K19/3402 ,  C09K19/062 ,  C09K19/20 ,  C09K19/2007 ,  C09K19/3066 ,  C09K19/3098 ,  C09K19/44 ,  C09K2019/0466 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3027 ,  C09K2019/3422 ,  C09K2019/548

公开(公告)号：EP3375846A1

公开(公告)日：2018-09-19

申请号：EP18161353.0

申请日：2018-03-13

Applicant: Merck Patent GmbH

Inventor： Yun, Chang-Jun ,  Choi, Chang-Suk ,  Han, Yeon-Jeong ,  Jin, Heui-Seok ,  Yun, Yong-Kuk

IPC: C09K19/54 ,  C09K19/04 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34

Abstract: The present invention relates to liquid-crystalline media comprising
a) one or more compounds of the formula ST-1,

and b) one or more compounds of the formula ST-2

and c) one or more compounds of the formula RV

and d) one or more compounds selected from the group of compounds of the formulae of the formula IA and IB,


in which the occurring groups and parameters have the meanings indicated in claim 1, and to liquid-crystal displays containing these media, especially to displays addressed by an active matrix and in particular to displays of the i n- p lane s witching (IPS) or f ringe- f ield s witching (FFS) type.

公开(公告)号：EP3375844A1

公开(公告)日：2018-09-19

申请号：EP18161354.8

申请日：2018-03-13

Applicant: Merck Patent GmbH

Inventor： Choi, Chang-Suk ,  Yun, Chang-Jun ,  Han, Yeon-Jeong ,  Jin, Heui-Seok ,  Yun, Yong-Kuk

IPC: C09K19/30 ,  C09K19/54 ,  C09K19/34 ,  C09K19/04 ,  C09K19/12

CPC classification number: C09K19/3405 ,  C09B57/00 ,  C09K19/3048 ,  C09K19/3066 ,  C09K19/3098 ,  C09K19/3402 ,  C09K19/3483 ,  C09K19/54 ,  C09K2019/0411 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3006 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3021 ,  C09K2019/3027 ,  C09K2019/3031 ,  C09K2019/3054 ,  C09K2019/3071 ,  C09K2019/3078 ,  C09K2019/3408 ,  G02F1/1362

Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I,

and
one or more compounds of the formula ST

wherein the occurring groups and parameters have the meanings indicated in claim 1,
and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PA-VA, SS-VA, SA-VA, PS-VA, PALC, IPS, PS-IPS, UB-FFS, U-IPS, FFS or PS-FFS effect.

公开(公告)号：EP4414438A3

公开(公告)日：2024-11-06

申请号：EP24184221.0

申请日：2022-02-24

Applicant: Merck Patent GmbH

Inventor： Wang, Jing ,  Zhao, Ping ,  Choi, Chang-Suk

IPC: C09K19/30 ,  C09K19/34 ,  C09K19/04 ,  C09K19/12

Abstract: The present invention relates to liquid-crystal (LC) media having a negative dielectric anisotropy comprising a compound of formula I as defined herein, and to the use of the LC media for optical, electro-optical and electronic purposes, in particular in energy-efficient LC displays, especially in IPS, FFS, VA or PS-VA displays.

公开(公告)号：EP4400561A1

公开(公告)日：2024-07-17

申请号：EP24150805.0

申请日：2024-01-09

Applicant: Merck Patent GmbH

Inventor： Choi, Chang-Suk ,  Wang, Jing ,  Jung, Ji-Hun ,  Li, Yao

IPC: C09K19/30 ,  C09K19/34 ,  C09K19/12 ,  C09K19/04 ,  C09K19/06

CPC classification number: C09K2019/307820130101 ,  C09K19/3068 ,  C09K19/3491 ,  C09K2019/300420130101 ,  C09K2019/30120130101 ,  C09K2019/302720130101 ,  C09K19/3098 ,  C09K19/062 ,  C09K19/3066 ,  C09K2019/303720130101 ,  C09K2019/044820130101 ,  C09K2019/12220130101 ,  C09K2019/12320130101

Abstract: The present invention relates to a liquid-crystal (LC) mixtures or LC material based on a mixture of polar compounds, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the fringe-field switching mode, to an LC display of the fringe-field switching mode comprising the LC medium, and to a process of manufacturing the LC display.

公开(公告)号：EP3617293A3

公开(公告)日：2020-07-22

申请号：EP19193351.4

申请日：2019-08-23

Applicant: Merck Patent GmbH

Inventor： Choi, Chang-Suk ,  Yun, Chang-Jun ,  Han, Yeon-Jeong ,  Lee, Hee-Kyu ,  Yun, Yong-Kuk

IPC: C09K19/54 ,  C09K19/04 ,  C09K19/30 ,  C09K19/12 ,  C09K19/34

Abstract: The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formulae S1 and S2,


and one or more compounds selected from the group of the compounds of the formulae II and III and/or IV and/or VIII,




in which the parameters have the respective meanings indicated in the specification, and optionally one or more further dielectrically positive compounds and optionally one or more further dielectrically neutral compounds, and to liquid-crystal displays, especially active-matrix displays and in particular TN, IPS and FFS displays, containing these media.

公开(公告)号：EP3375846B1

公开(公告)日：2020-06-24

申请号：EP18161353.0

申请日：2018-03-13

Applicant: Merck Patent GmbH

Inventor： Yun, Chang-Jun ,  Choi, Chang-Suk ,  Han, Yeon-Jeong ,  Jin, Heui-Seok ,  Yun, Yong-Kuk

IPC: C09K19/54 ,  C09K19/04 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34 ,  C09K19/02 ,  C09K19/12 ,  G02F1/00

公开(公告)号：EP3617293A2

公开(公告)日：2020-03-04

申请号：EP19193351.4

申请日：2019-08-23

Applicant: Merck Patent GmbH

Inventor： Choi, Chang-Suk ,  Yun, Chang-Jun ,  Han, Yeon-Jeong ,  Lee, Hee-Kyu ,  Yun, Yong-Kuk

IPC: C09K19/54 ,  C09K19/04 ,  C09K19/30 ,  C09K19/12 ,  C09K19/34

Abstract: The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formulae S1 and S2,


and one or more compounds selected from the group of the compounds of the formulae II and III and/or IV and/or VIII,




in which the parameters have the respective meanings indicated in the specification, and optionally one or more further dielectrically positive compounds and optionally one or more further dielectrically neutral compounds, and to liquid-crystal displays, especially active-matrix displays and in particular TN, IPS and FFS displays, containing these media.

公开(公告)号：EP3345985A1

公开(公告)日：2018-07-11

申请号：EP18150391.3

申请日：2018-01-05

Applicant: Merck Patent GmbH

Inventor： Yun, Chang-Jun ,  Choi, Chang-Suk ,  Han, Yeon-Jeong ,  Jin, Heui-Seok ,  Yun, Yong-Kuk

IPC: C09K19/34 ,  C09K19/04 ,  C09K19/20 ,  C09K19/30 ,  C09K19/12

CPC classification number: C09K19/3402 ,  C09K19/20 ,  C09K19/3066 ,  C09K2019/0466 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/301 ,  C09K2019/3422

Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds selected from the compounds of formula I

and
a compound of formula CV

in a concentration of 30 % by weight or less.
and
one or more compounds of formula OT

and
a compound of formula CP

wherein the occurring groups have the meanings given in claim 1, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to IPS and FFS displays. The invention further relates to a process for the fabrication of liquid crystal displays using the ODF process.

公开(公告)号：EP4414438A2

公开(公告)日：2024-08-14

申请号：EP24184221.0

申请日：2022-02-24

Applicant: Merck Patent GmbH

Inventor： Wang, Jing ,  Zhao, Ping ,  Choi, Chang-Suk

IPC: C09K19/12

CPC classification number: C09K19/3098 ,  C09K2019/044820130101 ,  C09K2019/302720130101 ,  C09K2019/30120130101 ,  C09K2019/301620130101 ,  C09K2019/300920130101 ,  C09K2019/12220130101 ,  C09K2019/300420130101 ,  C09K19/3491

Abstract: The present invention relates to liquid-crystal (LC) media having a negative dielectric anisotropy comprising a compound of formula I as defined herein, and to the use of the LC media for optical, electro-optical and electronic purposes, in particular in energy-efficient LC displays, especially in IPS, FFS, VA or PS-VA displays.