This chapter provides a systematic introduction to Apple screen modules, covering structural differences between LCD and OLED screens (applicable to iPhone 8 to iPhone 15 series and iPad models). It explains the composition of screen components, including display panel, touch layer, backlight module, polarizer, and flex cables. Additionally, it teaches the selection and standard operation of repair tools, such as heat guns, suction cups, spudgers, precision screwdrivers, and anti-static equipment. Learners will master screen model identification, tool maintenance, and anti-static precautions to avoid secondary damage during repair.