| 摘要 |
<p>Disclosed are: a liquid crystal composition which has at least one property selected from properties including a high upper limit temperature of a nematic phase, a low lower limit temperature of a nematic phase, a low viscosity, high optical anisotropy, high dielectric anisotropy, high specific resistance, high stability toward ultraviolet ray, high stability toward heat and the like, or has a proper balance between at least two properties selected from the aforementioned properties; and an AM element which has a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and the like. Specifically disclosed are: a liquid crystal composition which comprises a tricyclic compound having a specific difluoromethyleneoxy bond and having high dielectric anisotropy as a first component, a specific tricyclic compound having high dielectric anisotropy as a second component, a specific tetracyclic compound having a high upper limit temperature as a third component, and a specific bicyclic compound having a high upper limit temperature and a low viscosity as a fourth component and has a nematic phase; and a liquid crystal display element comprising the composition.</p> |
