公开(公告)号：EP4074808A1

公开(公告)日：2022-10-19

申请号：EP22167733.9

申请日：2022-04-12

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Lee, Hee-Kyu ,  Yang, Minghui

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

摘要： The invention relates to a liquid-crystalline medium having a nematic phase comprising one or more compounds of formula Py

wherein the parameters have the meaning given in the text,
to the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect which is fast and energy-saving, to displays of this type which contain a liquid-crystalline medium of this type and to the use of the compounds of formula Py for improvement of the contrast and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds, as specified in the text.

公开(公告)号：EP4428214A1

公开(公告)日：2024-09-11

申请号：EP24176440.6

申请日：2021-04-06

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Pfeiffer, Sabrina ,  Fackler, Philipp Hans

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

CPC分类号： C09K19/3098 ,  C09K19/3491 ,  C09K2019/046620130101 ,  C09K2019/12220130101 ,  C09K2019/12320130101 ,  C09K2019/12420130101 ,  C09K2019/300420130101 ,  C09K2019/300920130101 ,  C09K2019/30120130101 ,  C09K2019/301520130101 ,  C09K2019/301620130101 ,  C09K2019/301920130101 ,  C09K2019/302120130101 ,  C09K2019/302720130101 ,  C09K2019/342220130101

摘要： The present invention relates to liquid-crystalline (LC) media having positive dielectric anisotropy and to liquid-crystal displays (LCDs) containing these media, especially to displays addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

公开(公告)号：EP4428213A1

公开(公告)日：2024-09-11

申请号：EP24176436.4

申请日：2021-04-06

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Pfeiffer, Sabrina ,  Fackler, Philipp Hans

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

CPC分类号： C09K19/3098 ,  C09K19/3491 ,  C09K2019/046620130101 ,  C09K2019/12220130101 ,  C09K2019/12320130101 ,  C09K2019/12420130101 ,  C09K2019/300420130101 ,  C09K2019/300920130101 ,  C09K2019/30120130101 ,  C09K2019/301520130101 ,  C09K2019/301620130101 ,  C09K2019/301920130101 ,  C09K2019/302120130101 ,  C09K2019/302720130101 ,  C09K2019/342220130101

摘要： The present invention relates to liquid-crystalline (LC) media having positive dielectric anisotropy and to liquid-crystal displays (LCDs) containing these media, especially to displays addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

公开(公告)号：EP3933009A1

公开(公告)日：2022-01-05

申请号：EP21182645.8

申请日：2021-06-30

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Hirschmann, Harald ,  Radestock, Juergen

IPC分类号： C09K19/30 ,  C09K19/34 ,  C09K19/12

摘要： The present invention relates to a liquid crystal (LC) medium comprising a compound of formula I

and
one or more compounds selected from the group of compounds of the formulae IIA, IIB, IIC and IID,




as defined in claim 1, and to the use thereof for optical, electro-optical and electronic purposes, in particular in LC displays, especially in IPS, FFS, VA or PS-VA displays.

公开(公告)号：EP4306615A1

公开(公告)日：2024-01-17

申请号：EP23184026.5

申请日：2023-07-07

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Lee, Hee-Kyu ,  Yang, Minghui ,  Hirschmann, Harald ,  Deing, Kaja Christina

IPC分类号： C09K19/30 ,  C09K19/12 ,  C09K19/06 ,  C09K19/34 ,  C09K19/20

摘要： The present invention relates to liquid-crystal (LC) media as defined in claim 1, to the use thereof for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays containing said LC media. The invention in particular relates to LC media with improved response time that enable energy saving displays.

公开(公告)号：EP4296334A1

公开(公告)日：2023-12-27

申请号：EP23180196.0

申请日：2023-06-20

申请人： Merck Patent GmbH

发明人： Huang, Chi-Shu ,  Laut, Sven Christian ,  Lee, Hee-Kyu ,  Yang, Minghui ,  Hirschmann, Harald ,  Chou, Kuang-Ting ,  Hung, Shih-Chieh ,  Hahn, Alexander ,  Wucher, Philipp

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

摘要： The present invention relates to a liquid-crystal (LC) material as defined in claim 1, having negative dielectric anisotropy and to the use thereof for optical, electro-optical and electronic purposes, such as for example in LC displays, in particular energy saving displays based on the ECB, IPS or FFS effect.

公开(公告)号：EP4015598A1

公开(公告)日：2022-06-22

申请号：EP20214504.1

申请日：2020-12-16

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Windhorst, Martina ,  Brocke, Constanze

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

摘要： The invention relates to a liquid-crystalline medium having a nematic phase comprising one or more compounds of formula D

wherein the parameters have the meaning given in the text,
to the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type and to the use of the compounds of formula D for improvement of the contrast and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds, as well as to certain compounds of formula D, as specified in the text.

公开(公告)号：EP3985085A3

公开(公告)日：2022-05-04

申请号：EP21202788.2

申请日：2021-10-15

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Schoen, Sabine

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

摘要： The present invention relates to liquid-crystalline (LC) media having positive dielectric anisotropy and to liquid-crystal displays (LCDs) containing these media, especially to displays addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS PS-FFS, SA-HB-FFS, polymer stabilised SA-HB-FFS, positive VA or positive PS-VA type.

公开(公告)号：EP3892706A3

公开(公告)日：2021-10-20

申请号：EP21166936.1

申请日：2021-04-06

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Pfeiffer, Sabrina ,  Fackler, Philipp Hans

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

摘要： The present invention relates to liquid-crystalline (LC) media having positive dielectric anisotropy and to liquid-crystal displays (LCDs) containing these media, especially to displays addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

公开(公告)号：EP4306614A1

公开(公告)日：2024-01-17

申请号：EP23185162.7

申请日：2023-07-13

申请人： Merck Patent GmbH

发明人： Laut, Sven Christian ,  Lee, Hee-Kyu ,  Yang, Minghui

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

摘要： The present invention relates to liquid-crystalline (LC) media having positive dielectric anisotropy and to liquid-crystal displays (LCDs) containing these media, especially to displays addressed by an active matrix and in particular to energy saving LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type. The media have an improved long-term stability against UV radiation and elevated temperatures.