| 摘要 |
本发明提供一种满足对热、光等的高稳定性、高透明点、液晶相的低下限温度、小的黏度、适当的光学各向异性、大的介电各向异性、适当的弹性常数、与其他液晶性化合物的优异相容性等物性的至少1种的液晶性化合物，含有该化合物的液晶组成物以及包含该组成物的液晶显示元件。本发明的液晶性化合物是由式(1)所表示。;例如，R 1 及R 2 为碳数1~10的烷基、碳数2~10的烯基、或者碳数1~9的烷氧基；环A 1 及环A 2 为1,4-伸环己基或者1,4-伸苯基；Z 1 及Z 2 为单键、-(CH2)2-、-CH=CH-、-COO-、-OCO-、-CF2O-、-OCF2-、-CH2O-或-OCH2-；a及b为0、1、2或3，a与b的和为4以下。;The liquid crystalline compound is represented by formula (1). ;For example, R 1 and R 2 each represent an alkyl group having 1 to 10 carbons, an alkenyl group having 2 to 10 carbons, or an alkoxy group having 1 to 9 carbons; ring A 1 and ring A 2 each represent 1,4-cyclohexylene group or 1,4-phenylene group; Z 1 and Z 2 each represent single bond, -(CH2)2-, -CH=CH-, -COO-, -OCO-, -CF2O-, -OCF2-, -CH2O-, or -OCH2-; a and b each represent 0, 1, 2, or 3, and the sum of a and b are 4 or less. |
