公开(公告)号：US20240228879A1

公开(公告)日：2024-07-11

申请号：US18553764

申请日：2022-04-08

申请人： Jiangsu Hecheng Display Technology Co., Ltd.

发明人： Tengyun ZHAO ,  Yafei YANG ,  Wenquan DING ,  Di HE ,  Panpan WANG ,  Shuang XU

IPC分类号： C09K19/34 ,  C09K19/30 ,  C09K19/54 ,  C09K19/56

CPC分类号： C09K19/3491 ,  C09K19/3066 ,  C09K19/542 ,  C09K19/56 ,  C09K2019/548

摘要： A liquid crystal composition includes at least one compound represented by formula I and at least one compound represented by formula II. The liquid crystal composition has a relatively large absolute value of dielectric anisotropy, a relatively large K value, a relatively long low-temperature storage time period, a relatively low polymer layer surface roughness, a relatively small pre-tilt angle, a relatively fast speed for forming pre-tilt angle, a relatively low polymer residue, a relatively high VHR and a relatively good pre-tilt angle stability, while maintaining appropriate clearing points, optical anisotropy and rotational viscosity. A liquid crystal display device containing the liquid crystal composition has a relatively wide temperature usage range, relatively good contrast, and relatively good low-temperature mutual solubility. In addition, the production process of PSA-type liquid crystal displays is improved, and at the same time, the problems of “image sticking”, uneven display and “broken bright spots”.

公开(公告)号：US20240176222A1

公开(公告)日：2024-05-30

申请号：US18453859

申请日：2023-08-22

申请人： Electronics and Telecommunications Research Institute

发明人： Gi Heon KIM ,  Won Jae LEE

IPC分类号： G03B21/62 ,  C09K19/54 ,  C09K19/60 ,  G02F1/1334

CPC分类号： G03B21/62 ,  C09K19/544 ,  C09K19/601 ,  C09K19/603 ,  G02F1/1334 ,  C09K2019/525

摘要： A transparent structure according to an embodiment of the present disclosure includes a first panel and a second panel, wherein the first panel includes: a first electrode; a second electrode separated from the first electrode; and a polymer dispersed liquid crystal layer disposed between the first electrode and the second electrode, the second panel includes: a third electrode; a fourth electrode separated from the third electrode; and a colloid layer disposed between the third electrode and the fourth electrode, the fourth electrode includes multiple openings, and the colloid layer includes charged particles of which surfaces exhibit (+) charge or (−) charge.

公开(公告)号：US11939510B2

公开(公告)日：2024-03-26

申请号：US16639007

申请日：2018-08-13

申请人： MERCK PATENT GMBH

发明人： Eduardo Beltran Gracia ,  Kevin Adlem ,  Naomi Weare ,  Hassan Norouzi-Arasi

IPC分类号： G02F1/1333 ,  C08F220/38 ,  C08J5/18 ,  C09K19/04 ,  C09K19/32 ,  C09K19/38 ,  C09K19/54

CPC分类号： C09K19/3861 ,  C08F220/387 ,  C08J5/18 ,  C09K19/04 ,  C09K19/32 ,  C09K19/54 ,  C08F2800/20 ,  C08J2333/14 ,  C09K2019/0444 ,  C09K2019/0448

摘要： The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound of formula T,

RT1-(AT1ZT1)m1-GT1-(ZT2-AT2)m2-RT2  T

and at least one compound of formula CO-1,





wherein the parameter are RT1, AT1, ZT1, m1, GT1, ZT2, AT2, m2, RT2, L1 to L3, R1 and R2, and n are defined as given in claim 1.

Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

公开(公告)号：US20240067879A1

公开(公告)日：2024-02-29

申请号：US18220062

申请日：2023-07-10

申请人： Merck Patent GmbH

发明人： Sven Christian LAUT ,  Hee-Kyu LEE ,  Minghui YANG ,  Harald HIRSCHMANN ,  Kaja Christina DEING

IPC分类号： C09K19/30 ,  C09K19/58 ,  C09K19/54

CPC分类号： C09K19/3098 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/3068 ,  C09K19/586 ,  C09K19/542 ,  C09K2019/3036 ,  C09K2019/3004 ,  C09K2019/548

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：US11884862B2

公开(公告)日：2024-01-30

申请号：US15228666

申请日：2016-08-04

申请人： MERCK PATENT GMBH

发明人： Achim Goetz ,  Christian Hock ,  Lars Lietzau ,  Mark Goebel

IPC分类号： C09K19/30 ,  G02B30/24 ,  G02B30/27 ,  C07C13/28 ,  C07C22/08 ,  C07C43/225 ,  C09K19/34 ,  C09K19/54 ,  G02F1/137

CPC分类号： C09K19/3098 ,  C07C13/28 ,  C07C22/08 ,  C07C43/225 ,  C09K19/3402 ,  C09K19/3405 ,  C09K19/3491 ,  C09K19/54 ,  C09K19/542 ,  G02B30/24 ,  G02B30/27 ,  G02F1/137 ,  C07C2601/14 ,  C07C2601/16 ,  C09K2019/3408 ,  C09K2019/3422 ,  G02F1/13706

摘要： Compounds of the formula I






in which
R1 is alkyl or alkoxy in which CH2 groups are optionally replaced, and X1 is alkyl OCF3, CF3, CHF2, OCF2CF3, CCF2CHFCF3, OCF═CF2, OCH═CF2 or F,
a liquid-crystalline medium containing a compound of formula I,
and use thereof in electro-optical liquid-crystal displays, in particular in TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS or PS-FFS-, positive VA displays and in shutter spectacles for 3D effects and LC lenses.

公开(公告)号：US11873438B2

公开(公告)日：2024-01-16

申请号：US17415833

申请日：2019-12-18

申请人： MERCK PATENT GMBH

发明人： Rachel Tuffin ,  Matthias Bremer ,  Marcus Reuter

IPC分类号： C09K19/34 ,  C09K19/54 ,  G02F1/137

CPC分类号： C09K19/3491 ,  C09K19/542 ,  C09K2019/548 ,  G02F1/13712

摘要： A liquid-crystalline medium with one or more compounds of the formula IA and, one or more compounds of formula BS




and the use thereof in an active-matrix display, in particular in a VA, IPS, U-IPS, FFS, UB-FFS, SA-VA, SA-FFS, PS-VA, PS-OCB, PS-IPS, PS-FFS, PS-UB-FFS, PS-poli-VA, PS-TN, polymer stabilized SA-VA or polymer stabilized SA-FFS display.

公开(公告)号：US20240010917A1

公开(公告)日：2024-01-11

申请号：US18471553

申请日：2023-09-21

申请人： TOPPAN Inc.

发明人： Taisuke ENYA

IPC分类号： C09K19/54 ,  G02F1/1343 ,  G02F1/1334

CPC分类号： C09K19/544 ,  G02F1/13439 ,  G02F1/1334

摘要： A light control sheet includes an organic polymer layer that partitions voids, and a liquid crystal composition that contains a non-polymerizable liquid crystal compound and fills the voids. The light control sheet changes the transmittance to visible light by driving the non-polymerizable liquid crystal compound. The liquid crystal composition contains adipate as a non-polymerizable viscosity-reducing agent, and the weight of the non-polymerizable viscosity-reducing agent relative to the weight of the non-polymerizable liquid crystal compound is 1% or more.

公开(公告)号：US20230407181A1

公开(公告)日：2023-12-21

申请号：US18335169

申请日：2023-06-15

申请人： Ticona LLC

发明人： Xiaowei Zhang ,  Xinyu Zhao

IPC分类号： C09K19/54 ,  C08G77/00

CPC分类号： C09K19/544 ,  C08G77/80 ,  C09K2219/13 ,  C09K2019/521

摘要： A polymer composition that includes a polyhedral silsesquioxane (POSS) dispersed within a polymer matrix that contains a thermotropic liquid crystalline polymer is provided. The polyhedral silsesquioxane contains an aromatic group. The polymer composition exhibits a dielectric constant of about 4.5 or less as determined at a frequency of 10 GHz.

公开(公告)号：US20230383186A1

公开(公告)日：2023-11-30

申请号：US18200834

申请日：2023-05-23

申请人： Merck Patent GmbH

发明人： Sven Christian LAUT ,  Tzu-Huan TSENG ,  Kuang-Ting CHOU ,  Chi-Shun HUANG

IPC分类号： C09K19/30 ,  C09K19/54 ,  C09K19/06 ,  C09K19/12

CPC分类号： C09K19/3003 ,  C09K19/54 ,  C09K19/063 ,  C09K19/3066 ,  C09K19/3048 ,  C09K19/12 ,  C09K19/3098 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3096 ,  C09K2019/3053 ,  C09K2019/3054 ,  C09K2019/122 ,  C09K2019/3016 ,  C09K2019/123

摘要： A liquid-crystal (LC) medium which is based on a mixture of polar compounds and is substantially dielectrically neutral, its use for optical, electro-optical and electronic purposes, in particular as optical retarder or optical compensator in LC displays, an optical retarder or optical compensator containing the LC medium, an optical, electrooptical or electronic device containing the optical retarder or optical compensator, and a process of manufacturing the optical retarder or optical compensator.

公开(公告)号：US11796881B2

公开(公告)日：2023-10-24

申请号：US18157060

申请日：2023-01-19

申请人： Meta Platforms Technologies, LLC

发明人： Yuge Huang ,  Nicholas John Diorio, Jr. ,  Lu Lu

IPC分类号： G02F1/137 ,  C09K19/02 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/139 ,  G02B27/00 ,  C09K19/58 ,  C09K19/54

CPC分类号： G02F1/13775 ,  C09K19/0275 ,  C09K19/542 ,  C09K19/586 ,  G02B27/0093 ,  G02F1/1337 ,  G02F1/1398 ,  G02F1/13793 ,  G02F1/133365 ,  G02F1/133526 ,  C09K2019/546

摘要： A device includes a polymer stabilized blue phase liquid crystal (“PS-BPLC”) layer. The device also includes an alignment structure coupled with the PS-BPLC layer. LC molecules disposed in contact with the alignment structure are configured to have a spatially varying in-plane orientation pattern that is at least partially defined by the alignment structure. The PS-BPLC layer is configured to forwardly deflect a polarized light having a predetermined handedness, and transmit a polarized light having a handedness that is orthogonal to the predetermined handedness.