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1. WO2022000982 - LIQUID CRYSTAL COMPOUND CONTAINING DIBENZOTHIOPHENE STRUCTURE AND USE THEREOF

Publication Number WO/2022/000982
Publication Date 06.01.2022
International Application No. PCT/CN2020/133014
International Filing Date 01.12.2020
IPC
C09K 19/34 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
19Liquid crystal materials
04characterised by the chemical structure of the liquid crystal components
06Non-steroidal liquid crystal compounds
34containing at least one heterocyclic ring
G02F 1/1333 2006.1
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
Applicants
  • 北京八亿时空液晶科技股份有限公司 BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD [CN]/[CN]
Inventors
  • 朱波 ZHU, Bo
  • 姜卫东 JIANG, Weidong
  • 冯静 FENG, Jing
  • 戴雄 DAI, Xiong
  • 边坤 BIAN, Kun
  • 孙建波 SUN, Jianbo
  • 姜坤 JIANG, Kun
  • 谢佩 XIE, Pei
Agents
  • 北京路浩知识产权代理有限公司 CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED
Priority Data
202010626287.401.07.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LIQUID CRYSTAL COMPOUND CONTAINING DIBENZOTHIOPHENE STRUCTURE AND USE THEREOF
(FR) COMPOSÉ DE CRISTAUX LIQUIDES CONTENANT UNE STRUCTURE DIBENZOTHIOPHÈNE ET UTILISATION ASSOCIÉE
(ZH) 一种含有二苯并噻吩结构的液晶化合物及其应用
Abstract
(EN) The invention relates to a liquid crystal compound and the application field thereof, and particularly relates to a liquid crystal compound containing a dibenzothiophene structure and the use thereof. The liquid crystal compound has a structure as shown by general formula I or general formula II; and the compound has an extremely high negative dielectric anisotropy and also significantly improves the clearing point, has a relatively high optical anisotropy, a moderate rotational viscosity and liquid crystal intersolubility, has excellent low-temperature work effects, has good thermal stability, chemical stability, optical stability and mechanical properties, etc., thereby effectively reducing a driving voltage, improving the response speed of a liquid crystal display device, and also having characteristics such as a high charge retention rate.
(FR) L'invention concerne un composé de cristaux liquides et son champ d'application, et concerne en particulier un composé de cristaux liquides contenant une structure de dibenzothiophène et son utilisation. Le composé de cristaux liquides a une structure telle que représentée par la formule générale I ou la formule générale II; et le composé a une anisotropie diélectrique négative extrêmement élevée et améliore également significativement le point de TC, présente une anisotropie optique relativement élevée, une viscosité rotationnelle modérée et une intersolubilité des cristaux liquides, présente d'excellents effets de travail à basse température, présente de bonnes propriétés de stabilité thermique, de stabilité chimique, de stabilité optique et mécanique, etc, ce qui permet de réduire efficacement une tension de commande, d'améliorer la vitesse de réponse d'un dispositif d'affichage à cristaux liquides, et d'avoir également des caractéristiques telles qu'un taux de rétention de charge élevé.
(ZH) 一种液晶化合物及其应用领域,尤其涉及一种含有二苯并噻吩结构的液晶化合物及其应用;所述液晶化合物具有通式I或通式II所示结构:该化合物的负介电各向异性极高,且同时显著提高清亮点,比较高的光学各向异性,适中的旋转粘度和液晶互溶性,低温工作效果表现优秀,良好的热稳定性、化学稳定性、光学稳定性及力学等方面的性能;从而有效降低驱动电压,提高了液晶显示装置的响应速度,同时具有电荷保持率高等特点。
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