A pixel array for a liquid crystal display device is provided. The liquid crystal display device includes a plurality of scanning lines and a plurality of data lines. The pixel array includes a plurality of pixels. The plurality of pixels are respectively coupled to the plurality of data lines. The plurality of pixels are arranged in a plurality of pixel row pairs, and each pixel row pair includes two pixel rows. A N-th data line of the plurality of data lines is coupled to the pixels in a first side or a second side of the N-th data line in a M-th pixel row pair of the plurality of pixel row pairs, where N and M are positive integers. Stripes, flickers, and grid issues after applying two pixel rendering (TPR) are thereby solved.