a liquid crystal composition is disclosed which comprises three components . the first component comprises at least one of the compounds of the following formulas and . the second component comprises at least one of the compounds of the following formula . the third component comprises at least one of the compounds of the following formulas to . ## str1 ## each symbol in formulas to is defined in the specification . the liquid crystal composition has low threshold voltage and high stability to hear and ultraviolet rays while satisfying general characteristics required for the stn display mode .