申请人:MERCK PATENT GMBH
公开号:WO2019238567A1
公开(公告)日:2019-12-19
The present invention relates to benzotriazole derivatives selected from the group of compounds of formulae Ia, Ib and Ic as defined in claim 1, to mesogenic media comprising the compounds of formulae (Ia), (Ib) and (Ic), and to the use of these compounds and mesogenic media in optical, electronic and electro-optical applications,in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows.