ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,890, issued on Oct. 20, was assigned to Merck Patent GmbH (Darmstadt, Germany).
"Liquid-crystal medium" was invented by Harald Hirschmann (Darmstadt, Germany) and Sabine Schoen (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid-crystal (LC) medium or LC material based on a mixture of polar compounds, its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the vertically aligned mode and/or the fringe-field switching mode, an LC display of the vertically aligned mode and/or the fringe-field switching mode comprising the LC medium, especially an energy-saving LC ...