A liquid crystal display panel, comprising: an opposed substrate and an array substrate arranged opposite to each other, and a liquid crystal layer filled between the opposed substrate and the array substrate, wherein alignment films having opposite friction directions are provided on opposing surfaces of the opposed substrate and the array substrate, respectively; the liquid crystal display panel has a plurality of pixel units arranged in array, and each of the pixel units comprises two pixel regions (A, B) along the friction direction of the alignment film; in each of the pixel units, a whole inner surface of the opposed substrate facing the liquid crystal layer and a whole inner surface of the array substrate facing the liquid crystal layer within one of the two pixel regions (A, B) are inclined surfaces; a mean value of included angles between long axes of liquid crystal molecules in the liquid crystal layer within one of the two pixel regions (A, B) is defined by the pretilt angle at the surface of the opposed substrate and at the surface of the array substrate, and a mean value of included angles between long axes of liquid crystal molecules in the liquid crystal layer within the other one of the two pixel regions (A, B) is defined by the pretilt angle at the surface of the array substrate and at the surface of the opposed substrate; an inner surface of the opposed substrate facing the liquid crystal layer and an inner surface of the array substrate facing the liquid crystal layer within the other one of the two pixel regions are not inclined to the outer surface of the array substrate and the opposed substrate; slopes of whole inclined inner surfaces of the array substrate and the opposed substrate are opposite to each other; characterised in that the mean values of both pixel regions have the same absolute value, and the sum of the two mean values is zero. the liquid crystal display panel has a plurality of pixel units arranged in array, and each of the pixel units comprises two pixel regions (A, B) along the friction direction of the alignment film; in each of the pixel units, a whole inner surface of the opposed substrate facing the liquid crystal layer and a whole inner surface of the array substrate facing the liquid crystal layer within one of the two pixel regions (A, B) are inclined surfaces; a mean value of included angles between long axes of liquid crystal molecules in the liquid crystal layer within one of the two pixel regions (A, B) is defined by the pretilt angle at the surface of the opposed substrate and at the surface of the array substrate, and a mean value of included angles between long axes of liquid crystal molecules in the liquid crystal layer within the other one of the two pixel regions (A, B) is defined by the pretilt angle at the surface of the array substrate and at the surface of the opposed substrate; an inner surface of the opposed substrate facing the liquid crystal layer and an inner surface of the array substrate facing the liquid crystal layer within the other one of the two pixel regions are not inclined to the outer surface of the array substrate and the opposed substrate; slopes of whole inclined inner surfaces of the array substrate and the opposed substrate are opposite to each other; characterised in that the mean values of both pixel regions have the same absolute value, and the sum of the two mean values is zero.