A giant screen displays the images of (up, LtoR) Japanese-born researchers Isamu Akasaki, Hiroshi Amano and Shuji Nakamura as (bottom, L-R) Nobel Committee for Physics chairman Per Delsing, Staffan Normark, Permanent Secretary of the Royal Swedish Academy of Sciences, and Nobel Committee for Physics members Anne L'Huillier and Olle Ingnas give 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. Akasaki, Amano and Nakamura, who is currently based in the US -- won the Nobel Physics Prize for inventing the blue light-emitting diode (LED).     AFP PHOTO / JONATHAN NACKSTRAND        (Photo credit should read JONATHAN NACKSTRAND/AFP/Getty Images)