Display device and display method

Abstract

A display device and its display method are provided. The display device includes a pixel array and a grating; the pixel array includes a plurality of columns of pixels with each pixel comprising at least two sub-pixels; each column of sub-pixels is formed by cyclically arranged sub-pixels of at least three colors, and an amount of sub-pixels in each column of sub-pixels are the same and a size of each sub-pixel is the same; an upper edge of each sub-pixel in an odd column is aligned with that of a sub-pixel in another odd column and an upper edge of each sub-pixels in an even column is aligned with that of a sub-pixel in another even column, and a pre-set length of longitudinal offset is provided between sub-pixels in odd columns and sub-pixels in even columns; colors of any adjacent sub-pixels are different from each other; light-blocking areas of the grating blocks a partial area of the pixel array. Upon an image being displayed by the pixel array, one sub-pixel can borrow its adjacent sub-pixels or be borrowed by its adjacent sub-pixel so as to allow a display resolution to be greater than a physical resolution to increase PPI of a display device.