Liquid crystal composition and liquid crystal high-frequency phase modulation device thereof

By using liquid crystal compositions composed of compounds of general formula I, general formula II and general formula M in specific proportions, the problems of high dielectric loss and insufficient low-temperature miscibility of liquid crystal materials are solved, and the high-frequency tunability and wide temperature range under low-temperature conditions are improved.

CN122302906APending Publication Date: 2026-06-30JIANGSU HECHENG DISPLAY TECH CO LTD
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Patent Information

Application Number
CN202411998280.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing liquid crystal materials have high dielectric loss at high frequencies and insufficient mutual solubility and tunability at low temperatures, making it difficult to meet the needs of modern communication devices.

Method used

Liquid crystal compositions composed of compounds of general formula I, general formula II and general formula M in specific proportions can optimize dielectric loss and tunability and improve low-temperature miscibility by adjusting the content of each compound.

Benefits of technology

While maintaining appropriate clearing points and absolute values ​​of dielectric anisotropy, the dielectric loss of liquid crystal at high frequencies is reduced, the tunability of liquid crystal at high frequencies is improved, and it can adapt to extreme low temperatures and a wide operating temperature range.

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Abstract

The invention provides a liquid crystal composition and a liquid crystal display device comprising the same. The liquid crystal composition comprises at least one compound as shown in a general formula I, at least one compound as shown in a general formula II and at least one compound as shown in a general formula M. The liquid crystal composition provided by the invention can effectively improve the low-temperature intersolubility, reduce the dielectric loss of the liquid crystal at high frequency and increase the tunability of the liquid crystal at high frequency under the condition of maintaining a proper clearing point, proper optical anisotropy and proper absolute value of dielectric anisotropy.
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