Original: In 1956 , John Bardeen shared the Nobel Prize in Physics with William Shockley of Semiconductor Laboratory of Beckman Instruments and Walter Brattain of Bell Telephone Laboratories '' for their researches on semiconductors and their discovery of the transistor effect '' .
Simplified: Bardeen , together with William Shockley and Walter Brattain , invented the transistor on 23 December 1947 . They shared the Nobel Prize in Physics for 1956 .