Warpage analysis of an LCD panel under thermo-mechanical and hygro-mechanical stress

A polarizing plate, which is an important part of a liquid crystal display panel (LCD), is made by sandwiching an organic polarizer between protecting films. An organic polarizer is both a hygroscopic and orthotropic material. The hygroscopic swelling and drying shrinkage of the organic polarizer can cause the polarizing plate to crack and the liquid crystal display panel to warp.