The invention provides a polarizing plate set which can inhibit warpage of liquid crystal panels at high temperature and a liquid crystal panel formed by laminating the polarizing plate on a liquid crystal unit. The invention provides the polarizing plate set, which includes a first polarizing plate arranged at an observing side of the liquid crystal unit and a second polarizing plate arranged at a rear side of the liquid crystal unit. The second polarizing plate is provided with a reflective polarizer. When the warping force of the first polarizing plate is set as C1 and the warping force the second polarizing plate is set as C2, the difference C2 - C1 = 0.4-1.0 gf.