ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,991, issued on Feb. 17, was assigned to Merck Patent GmbH (Darmstadt, Germany).
"Liquid-crystalline medium" was invented by Sven Christian Laut (Shanghai), Sabrina Pfeiffer (Darmstadt, Germany) and Philipp Hans Fackler (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Liquid-crystalline (LC) media having positive dielectric anisotropy and liquid-crystal displays (LCDs) containing these media, especially displays addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, p...