The invention provides a compound which is as shown in a formula I and can realize a self-alignment function, a negative
liquid crystal composition containing the compound, and a
liquid crystal display element or a
liquid crystal display containing the compound or the liquid
crystal composition. The compound shown in the formula I at least contains one dihydroxyl; and in the panel ODF manufacturing process, due to the fact that the intermolecular acting force between the dihydroxyl and panel surfaces (a glass surface and an ITO
electrode surface) is higher, the compound shown in the formula I has better anchoring property, and a more stable pretilt angle is obtained. The compound shown in the formula I has better
solubility, especially low-temperature
solubility, and can adapt to a wider storage temperature range; and a
polymer film with higher uniformity can be obtained, so that the problem of poor display caused by damage of free radical ions to the liquid
crystal composition is prevented.