OLED - Oganic Light Emitting Diode, Chinese : organic light emitting diode;
By the way, there are several common English terms for the industry:
PM OLED - Passive Matrix OLED, Chinese: passively driven OLED;
AM OLED - Active Matrix OLED, Chinese: Active Drive OLED;
TFT——Thin Film Transist, Chinese: thin film transistor;
LCD——Liquid Crystal Display, Chinese: LCD display;
LCM——LCD Module, Chinese: LCD module;