The liquid crystal display, or LCD, became the technology that replaced the cathode ray tube as the dominant television and computer screen technology. Its scientific basis traces to Friedrich Reinitzer's 1888 discovery of liquid crystalline properties, and Hoffmann-La Roche's 1970 patent on the twisted nematic field effect made practical LCD devices possible, followed by the first thin film transistor liquid crystal display in 1973. LCD television image quality surpassed cathode ray tube image quality in 2007, the same year LCD televisions first outsold CRT televisions worldwide, completing a transition that made the bulkier tube technology obsolete within a few more years.
Facts
Introduced Year OriginDeveloped by a team at RCA led by George Heilmeier, whose Dynamic Scattering Mode (DSM) liquid crystal display was introduced in 1968. 2 Connections
Associated With
Developed By
Source New World Encyclopedia
In Medium
Sources
1. Wikipedia
Wikimedia FoundationLiquid-crystal display, History section, 1970s and 2000s
In 1972, the concept of the active-matrix thin-film transistor (TFT) liquid-crystal display panel was prototyped in the United States by T. Peter Brody's team at Westinghouse, in Pittsburgh, Pennsylvania.
Liquid-crystal display, History section, 1970s twisted nematic patent
On December 4, 1970, the twisted nematic field effect (TN) in liquid crystals was filed for patent by Hoffmann-LaRoche in Switzerland.
View the Source 2. New World Encyclopedia
New World Encyclopedia (Paragon House)New World Encyclopedia: Liquid crystal display, History sectionQuote, New World Encyclopedia: Liquid crystal display, History section
The first operational LCD was based on the Dynamic Scattering Mode (DSM) and was introduced in 1968 by a group at RCA in the United States, headed by George Heilmeier.
New World Encyclopedia
Developed By: Radio Corporation of America, New World Encyclopedia: Liquid crystal display, History sectionQuote, Developed By: Radio Corporation of America, New World Encyclopedia: Liquid crystal display, History section
The first operational LCD was based on the Dynamic Scattering Mode (DSM) and was introduced in 1968 by a group at RCA in the United States, headed by George Heilmeier.
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