US Patent No. 10,190,048

LIQUID-CRYSTALLINE MEDIUM AND LIQUID-CRYSTAL DISPLAY COMPRISING THE SAME


Patent No. 10,190,048
Issue Date January 29, 2019
Title Liquid-crystalline Medium And Liquid-crystal Display Comprising The Same
Inventorship Atsutaka Manabe, Bensheim (DE)
Sven Baran, Babenhausen (DE)
Lars Lietzau, Rossdorf (DE)
Brigitte Schuler, Grossostheim (DE)
Assignee Merck Patent GmbH, Darmstadt (DE)

Claim of US Patent No. 10,190,048

1. A liquid-crystalline medium comprisinga) one or more compounds selected from the group of compounds of formulae I-1 and I-2

in which
R11 and R12 independently of each other denote H or alkyl with 1 to 5 C atoms, and
b) one or more compounds selected from the group of compounds of formulae II and III

in which
R21 denotes an unsubstituted alkyl radical having 1 to 7 C atoms, an unsubstituted alkenyl radical having 2 to 7 C atoms or an unsubstituted alkoxy radical having 1 to 6 C atoms,
R22 denotes an unsubstituted alkyl radical having 1 to 7 C atoms, an unsubstituted alkoxy radical having 1 to 6 C atoms or an unsubstituted alkenyloxy radical having 2 to 6 C atoms, and
l denotes 0 or 1,
R31 denotes an unsubstituted alkyl radical having 1 to 7 C atoms or an unsubstituted alkenyl radical having 2 to 7 C atoms,
R32 denotes an unsubstituted alkyl radical having 1 to 7 C atoms, an unsubstituted alkoxy radical having 1 to 6 C atoms or an unsubstituted alkenyloxy radical having 2 to 6 C atoms, and
denotes