The issue of slow mobility of electrons with material in a-Si based TFT backplane has gave the rise of new technologies that will overcome this problem. Metal-oxide technology is one of such replacement technologies that has been researched and gained huge industry acceptance over last few years. Today the display industry is extensively using metal-oxide TFT backplane technology in displays such as LCD, LED, and OLED. The transition of a-Si technology to metal-oxide for the TFT fabs was smooth owing to the use of same PVD technique for both the technologies. Metal-oxide based TFT backplanes brings new opportunities of research & development, where today the technology enables the display makers to use it for flexible, transparent, or 3D displays. Besides, metal-oxide technology also enables the display makers to use it in OLED displays due to its compatibility. Display industry has always been at forefront of technological revolution, with introduction of metal-oxide it...