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The twisted nematic effect (TN-effect) was a major technological breakthrough that made the manufacture of large, thin liquid crystal displays practical and cost competitive. Unlike earlier flat-panel displays, TN-cells did not require a current to flow for operation and used low operating voltages suitable for use with batteries.
A STN (super-twisted nematic) display is a type of liquid-crystal display (LCD). An LCD is a flat-panel display that uses liquid crystals to change its properties when exposed to an electric field, which can be used to create images. This change is called the twisted nematic (TN) field effect. Earlier TN displays twisted the liquid crystal ...
The molecules are reoriented by an applied electric field, while remaining essentially parallel to the surfaces to produce an image. It was designed to solve the strong viewing angle dependence and low-quality color reproduction of the twisted nematic field effect (TN) matrix LCDs prevalent in the late 1980s. [1]
TFT Central – Reviews, News and Articles and includes panel search database "Monitor panel search". FlatpanelsHD.com. – LCD monitor panel search database; Animated LCD Tutorial by 3M; LCD Panels with Response Time Compensation, X-bit labs, December 20, 2005 "Contemporary LCD Monitor Parameters and Characteristics". X-bit labs. October 26, 2004.
twisted nematic field effect: dynamic scattering mode, DMS: Visual information can be generated by the processes of absorption (either by dichroic dyes in the LC or by external dichroic polarizers), scattering, index matching (e.g. holographic PDLCs).
CRTs were the single most popular display technology used in television sets and computer monitors for over half a century; it was not until the 2000s that LCDs began to gradually replace them. A derivative of CRTs were storage tubes , which had the ability to retain information displayed on them, unlike standard CRTs which need to be refreshed ...
DSTN (double super twisted nematic), also known as dual-scan super twisted nematic [1] or simply dual-scan, is an LCD technology in which a screen is divided in half, which are simultaneously refreshed giving faster refresh rate than traditional passive matrix screens. [2]
In 1970, the physicists Martin Schadt and Wolfgang Helfrich invented the twisted nematic field effect (TN-effect) in the Central Research Laboratories of F. Hoffmann-La Roche Ltd, in Basel, Switzerland. The resulting patent CH532261 was licensed worldwide to electronics and watch industries and thus initiated a paradigm change towards flat ...