TFT LCD (Thin Film Transistor Liquid Crystal Display) technology has revolutionized the electronics industry and is widely used in various devices such as smartphones, tablets, televisions, and computer monitors. The production process of TFT LCDs involves several critical performance indicators that play a vital role in ensuring the quality and efficiency of the final product. In this article, we will explore these key indicators while incorporating recent hot topics related to the TFT LCD industry.