The present disclosure provides a liquid crystal display panel and a device, which comprises a data line, a scanning line, a first common line, a second common line, a main-pixel portion, and a sub-pixel portion. The first common line is for supplying a common voltage, the second common is for making a voltage of the sub-pixel portion equal to a fixed value and a voltage of the main-pixel portion is different from the voltage of the sub-pixel portion when the liquid crystal display panel is aligned.