What's the difference between AMOLED, OLED, and POLED?

mole4dany of various small, burrowing insectivores (esp. family Talpidae) with small eyes and ears, shovel-like forefeet, and soft fur: moles live mainly undergroundany of various small, burrowing insectivores (esp. family Talpidae) with small eyes and ears, shovel-like forefeet, and soft fur: moles live mainly underground