The present disclosure provides a pixel substrate, a liquid crystal display panel and liquid crystal display device, the pixel substrate includes liquid crystal pixels, TFT, source lines, grid lines, common electrodes, and corresponding storage capacitances, the liquid crystal pixels include a plurality of pixel units, each of the source lines is connected to the source/drain electrode of at least two columns of the pixel units, and the storage capacitance corresponding to one column of the pixel units is larger than the storage capacitance corresponding to any other column of the pixel units. The present disclosure reduces the effect of the feed-through voltage on the display effect while reducing the power consumption.