the liquid crystalline material of the present invention comprises a compound represented by the following structural formula , compounds represented by the structural formulas and , compounds represented by the structural formulas and , or compounds represented by the structural formulas , and in an amount of 90 % by weight or more of the total amount of liquid crystalline components contained therein : ## str1 ## wherein r represents a linear alkyl group , c n h 2n + 1 in which n is 3 , 4 , 5 , 6 or 7 , a represents -- ch 2 ch 2 -- or direct bond without -- ch 2 ch 2 --, and b represents -- ch 2 ch 2 -- or direct bond without -- ch 2 ch 2 --. further , under the above conditions , the components are blended so that the nematic - isotropic transition temperature of the liquid crystalline material can be 55 ° c . to 75 ° c . a liquid crystal display panel of tn type obtained by using the thus - obtained liquid crystalline material is operable with a low voltage of 2 . 5 v or lower . a display panel of which power consumption is low can thus be attained .