Negative dielectric anisotropy liquid crystal composition and liquid crystal display device

A liquid crystal composition, anisotropic technology, used in liquid crystal materials, instruments, nonlinear optics, etc., can solve problems such as difficult and high light transmittance, and achieve excellent transmittance, high transmittance, and good low temperature storage. Effect

Active Publication Date: 2021-10-19
YANTAI XIANHUA CHEM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this method, the slope of the V-T curve of the VA liquid crystal display device will not become steep, and the maximum transmittance will not become high, so it is difficult to achieve high light transmittance at a driving voltage above the middle gray scale

Method used

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  • Negative dielectric anisotropy liquid crystal composition and liquid crystal display device
  • Negative dielectric anisotropy liquid crystal composition and liquid crystal display device
  • Negative dielectric anisotropy liquid crystal composition and liquid crystal display device

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Embodiment

[0131] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0132] In the present invention, the preparation method is a conventional method unless otherwise specified, and the raw materials used can be obtained from open commercial channels if not otherwise specified, and the percentages all refer to mass percentages, the temperature is degrees Celsius (°C), and the liquid crystal compound is also liquid crystal monomer.

[0133] [Negative Dielectric Anisotropy Liquid Crystal Composition]

[0134] Negative dielectric anisotropy liquid crystal compositions of different compositions were prepared in the examples and comparative examples, wherein, the monomer structure, dosage (ma...

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Abstract

The invention relates to a negative dielectric anisotropy liquid crystal composition and a liquid crystal display device. The negative dielectric anisotropy liquid crystal composition comprises at least one compound as shown in a formula I, at least one compound as shown in a formula II and at least one compound as shown in a formula III. Compared with the prior art, the liquid crystal composition provided by the invention has the technical effects of good response speed and high transmittance on the basis of maintaining proper optical anisotropy value and dielectric anisotropy.

Description

technical field [0001] The invention relates to the technical field of liquid crystal materials. More specifically, it relates to a liquid crystal composition and a liquid crystal display device. Background technique [0002] Liquid crystal display devices such as clocks and desktop computers are used in various household electrical appliances, industrial measurement equipment, automotive panels, mobile phones, smartphones, notebook PCs, tablet PCs, and televisions. Representative examples of liquid crystal display methods include: twisted nematic (TN) type, supertwisted nematic (STN) type, guest host (GH) type, in-plane switching (in- plane switching (IPS) type, fringe field switching (FFS) type, optically compensated birefringence (OCB) type, electrically controlled birefringence (ECB) type, vertical alignment (Vertical Alignment, VA) ) type, color super homeotropic (CSH) type, ferroelectric liquid crystal (FLC) and so on. In addition, as the driving method, static driv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44C09K19/46G02F1/137
CPCC09K19/44C09K19/46G02F1/13712
Inventor 舒克伦尹硕刘永祥赖育宏丰佩川
Owner YANTAI XIANHUA CHEM TECH CO LTD
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