The portraits of researchers (L-R) Isamu Akasaki, Hiroshi Amano and Shuji Nakamura are displayed on a screen during a press conference to announce the winners of the 2014 Nobel Prize in Physics on October 7, 2014 at the Royal Swedish Academy of Science in Stockholm, Sweden. Three Japanese-born researchers -- Isamu Akasaki, Hiroshi Amano and Shuji Nakamura, who is currently based in the US -- won the Nobel Prize for Physics for inventing the LED lamp, a boon in the fight against global warming and aiding people in poverty. AFP PHOTO / JONATHAN NACKSTRAND        (Photo credit should read JONATHAN NACKSTRAND/AFP/Getty Images)