<Table> Light - emitting diode <Tr> <Td colspan="2"> Blue , green , and red LEDs in 5 mm diffused case </Td> </Tr> <Tr> <Th> Working principle </Th> <Td> Electroluminescence </Td> </Tr> <Tr> <Th> Invented </Th> <Td> H.J. Round ( 1907 ) Oleg Losev ( 1927 ) James R. Biard ( 1961 ) Nick Holonyak ( 1962 ) </Td> </Tr> <Tr> <Th> First production </Th> <Td> October 1962 </Td> </Tr> <Tr> <Th> Pin configuration </Th> <Td> Anode and cathode </Td> </Tr> <Tr> <Th colspan="2"> Electronic symbol </Th> </Tr> <Tr> <Td colspan="2"> </Td> </Tr> </Table>
<Table> Light - emitting diode <Tr> <Td colspan="2"> Blue , green , and red LEDs in 5 mm diffused case </Td> </Tr> <Tr> <Th> Working principle </Th> <Td> Electroluminescence </Td> </Tr> <Tr> <Th> Invented </Th> <Td> H.J. Round ( 1907 ) Oleg Losev ( 1927 ) James R. Biard ( 1961 ) Nick Holonyak ( 1962 ) </Td> </Tr> <Tr> <Th> First production </Th> <Td> October 1962 </Td> </Tr> <Tr> <Th> Pin configuration </Th> <Td> Anode and cathode </Td> </Tr> <Tr> <Th colspan="2"> Electronic symbol </Th> </Tr> <Tr> <Td colspan="2"> </Td> </Tr> </Table>
state the basic operating principle of an led
state the basic operating principle of an led
Electroluminescence
Electroluminescence