Negative liquid crystal composition and application thereof

A technology of liquid crystal composition and negative liquid crystal, which is applied in liquid crystal materials, nonlinear optics, optics, etc., can solve the problems of VA display resistance reduction and achieve good low-temperature mutual solubility, suitable for optical anisotropy, and high VHR effects

Pending Publication Date: 2022-02-11
重庆汉朗精工科技有限公司
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  • Abstract
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Problems solved by technology

In addition to the significant costs due to its production, the unfavorable interaction between polyimide and liquid crystals often leads to a decrease in the resistance of VA displays

Method used

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  • Negative liquid crystal composition and application thereof
  • Negative liquid crystal composition and application thereof
  • Negative liquid crystal composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0091] M1:

[0092] Configure the liquid crystal according to the following proportions to obtain the mixture M1, which is filled between the two substrates of the liquid crystal device for performance testing. The test data are shown in the following table:

[0093] Table 2 Nematic liquid crystal M1

[0094] components content% performance 3CCO1 2 Cp 74.8℃ 3CPO1 6 Dn 0.101 3CCV1 10 De -3.6 3CWO2 11 gamma 1

95 4CC3 8 K11 15.4 3PWO2 19 K33 14.9 5CC3 6 Ts-N ＜-30℃ 3CPP1 8 V2CCP1 5 3CPP2 8 3CCWO2 9 3CPWO2 4 2CPP2 4

[0095] M2:

[0096] Configure the liquid crystal according to the following proportions to obtain the mixture M2, which is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0097] Table 3 Nematic liquid crystal M2

[0098]

[0099] ...

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Abstract

The invention discloses a negative liquid crystal composition and application thereof. The negative liquid crystal composition provided by the invention has low viscosity, proper elastic constant, proper optical anisotropy and good low-temperature intersolubility; and compared with a liquid crystal composition needing to use double-side PI, the negative liquid crystal composition has relatively high VHR and relatively high pretilt angle forming capability by adopting a liquid crystal component prepared from a liquid crystal box without PI on one side.

Description

technical field [0001] The invention relates to a negative liquid crystal composition and its application, belonging to the technical field of liquid crystal materials. Background technique [0002] Liquid crystal material is a mixture of organic rod-shaped small molecular compounds that have both fluidity of liquid and anisotropy of crystal at a certain temperature. Liquid crystal display devices use the optical anisotropy and dielectric anisotropy of liquid crystal materials to work, and have been widely used at present. [0003] The reliability of liquid crystal mixtures is one of the major issues in the liquid crystal industry today. The main aspect is the stability of the liquid crystal molecules to the light emitted from the liquid crystal D's backlight unit. Light-induced reactions of liquid crystal materials can lead to a display defect known as image sticking. This greatly reduces the lifespan of LCD displays and is one of the major reliability standards in the L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44C09K19/30G02F1/1333
CPCC09K19/44C09K19/3001G02F1/1333
Inventor 史志兵
Owner 重庆汉朗精工科技有限公司
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