History of LCD - PowerPoint PPT Presentation

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History of LCD

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  1. History of LCD Joshua Nguyen ECE-E443

  2. Liquid Crystal Displays (LCDs) Innovation Timeline • 1888-1899 • 1888, Austrian Botanist Freidrich Reinitzer discovers liquid crystals • 1897,German scientist Karl Braun invents the cathode ray tube (CRT)

  3. Liquid Crystal Displays (LCDs) Innovation Timeline • 1900-1970 • 1958, The first paper research about LCD in the U.S. wrote by Dr. Glenn Brown • 1963, Richard Williams and George Heilmeier suggested using liquid crystal materials for display

  4. Liquid Crystal Displays (LCDs) Innovation Timeline • 1900-1970 • 1967, James Fergason discovered the "twisted nematic" LCD. He produced the first practical displays • 1968, RCA group had a display based on the dynamic scattering mode (DSM) of liquid crystals

  5. Liquid Crystal Displays (LCDs) Innovation Timeline • 1970-1980 • 1972,International Liquid Crystal Company (ILIXCO) produced the first modern LCD watch using Fergason Ideal • 1973, ,Sharp produced the first portable calculator, using a DSM LCD screen • 1979, Walter Spear and Peter LeComber made the first color display using lightweight thin film transfer (TFT) LCD

  6. Liquid Crystal Displays (LCDs) Innovation Timeline • 1980- 2000 • 1985, Seiko-Epson unveiled the first commercial LCD color TV set, which had a 2 inch view • 1992, Sharp developed a multimedia-compatible 16.5 inch color TFT LCD, that was the world's first LCD ViewCam

  7. Liquid Crystal Displays (LCDs) Innovation Timeline • 2000- Present • 2004, Philips demonstrated a 20″ 3-D LCD at CeBIT in Hannover • 2005, Samsung Developed World's Largest (82") Full HDTV TFT-LCD

  8. Other LCD application: LCD Projector

  9. Digital Light Processing™ (DLP) Projector

  10. Question ?

  11. References • http://www.pacificdisplay.com/lcd_oper_modes.htm • http://bugclub.org/beginners/history/MonitorsHistory.html

  12. How LCD works ?