LED was not actually invented, but discovered. It was discovered by H.J. Round in the year 1907 through a crystal of silicon carbide.
Patrick tamer bowie invented led signs in 1979
"Nick Holonyak, 75, invented the LED (light emitting diode) in the 1960s."
I don't know about LED TV but i know LED (Light Emitting Diodes) was invented in 1962 so most likely not too long after that.
Russia 1920
1974
Thomas Edison invented light because he made light so why not bulbs
the pioneers they dug it up
Santa
There is no definite answer as to who first invented headbanging, However, a popular answer is that headbanging was invented at a Led Zepplin show in 1969.
There are four major types:LCD (Invented in 1968)Plasma (Invented in 1964)LED (Invented in 1977)OLED (Invented in 2007)
The person who invented the Breeder Reactor in the 1950s was by a team led by Walter Zinn
1964 however LED and HD tv's came afterwards