A Brief History: LCDs



Milestones: A Brief History

  • 1888: Fridrich Reinitzer, an Austrian botanist discovered liquid crystal phase transition phenomenon
  • 1889: Otto Lehmann, Physicist in Germany, coined the term “liquid crystal”
  • 1968: A research group at RCA in the US, headed by George Heilmeier, developed the first LCDs based on DSM (dynamic scattering mode)
  • 1969: James Fergason, an associate director of Liquid Crystal Institute at Kent State University in Ohio, discovered the TN (twisted nematic) field effect.
  • 1972: S. Kobayashi in Japan produced first defect free LCD.
  • 1973: G. Gray of BDH Ltd in the UK invented biphenyl liquid crystal material to make stable LCD possible.
  • 1983: T. Scheffer and J. Nehring discovered STN (super twisted nematic) field effect.
  • 1986: NEC produced first laptop LCD computer
  • 1995: Sharp produced 28″ TFT LCD.
  • 2001: Samsung produced 42″ TFT LCD.
  • 2002: LCD overtook CRT as desktop monitors.
  • For a more complete history of LCD development, refer to Dr. Joseph Castellano’s paper

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