The development history of LED after Independence Day of the United States
Early Theories and Discoveries (Early 20th Century - 1960s)The 1950s: Breakthroughs in semiconductor researchIn the 1950s, research institutions such as Bell Labs in the United States began to conduct in-depth research on semiconductor materials, especially III-V group compound semiconductors (such as gallium arsenide GaAs and gallium phosphide GaP). These materials possess Electroluminescence (EL) properties,...