Difference of the 3 qualities. Touch on LCD Panel (More Stable). OLED = Aftermarket Hard OLED Display with Touch Digitizer.
Soft OLED = Highest Quality Flexible OLED Display with Touch Digitizer. Brand new and high quality. LCD and Touch Screen + Frame Assembly. Ear Mesh & Camera Holder Included. 1 LCD Display Touch Screen Digitizer Frame Assembly.
Switch off iphone before replacing the screen! Clean the cables and screen before installing them. Try your best to avoid the static electricity!