A negative dielectric anisotropy liquid crystal composition and applications thereof
By using a negative dielectric anisotropic liquid crystal composition with a specific structure of compounds and antioxidants, the stability problem of VA display mode liquid crystal display devices under high temperature, ultraviolet light and high brightness backlight conditions was solved, and a liquid crystal display device with fast response and high stability was realized.
CN115725304BActive Publication Date: 2026-06-02SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
- Filing Date
- 2021-08-31
- Publication Date
- 2026-06-02
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Abstract
The present application relates to a kind of negative dielectric anisotropy liquid crystal composition and its application, the negative dielectric anisotropy liquid crystal composition includes at least one compound shown in formula I, at least one compound shown in formula III and antioxidant, the antioxidant is selected from at least one compound shown in formula V, or it is the mixture of compound M and at least one compound shown in formula V.The application relates to a kind of negative dielectric anisotropy liquid crystal composition, by the mutual cooperation of each component, so that the negative dielectric anisotropy liquid crystal composition has higher photo-thermal stability, lower rotational viscosity, wider nematic phase temperature range and larger optical anisotropy and larger dielectric anisotropy.Compared with existing antioxidant M, by adding the antioxidant shown in formula V with specific structure in the present application, the photo-stability and thermal stability of the negative dielectric anisotropy liquid crystal composition are significantly improved.
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