LIQUID CRYSTAL PHASES FOR ELECTRO-OPTIC DISPLAY ELEMENTS BASED ON THE ECB EFFECT,申请号WO1987EP00515-传众专利搜索

发明名称	LIQUID CRYSTAL PHASES FOR ELECTRO-OPTIC DISPLAY ELEMENTS BASED ON THE ECB EFFECT
摘要	Liquid crystal phases have two components A and B, composed in turn of one or more single compounds. Component A has a marked negative dielectric anisotropy and imparts to the liquid crystal phase a dielectric anisotropy </= -0.3. Component B has marked nematicity and viscosity not exceeding 30 mPa.s at 20 DEG C. If necessary, a component C with a high clarification temperature of at least 150 DEG C is added to induce in the liquid crystal phase a clarification temperature of at least 60 DEG . An additional component D has very weak positive dielectric anisotropy and an optical anisotropy of at least 0.2. In order to obtain especially short switching times, the components A can also be totally or partially replaced by appropriate single compounds of component D having a marked negative dielectric anisotropy. These liquid crystal phases are suitable for electro-optical display elements based on the ECB effect.
申请公布号	WO8802130(A3)	申请公布日期	1988.04.21
申请号	WO1987EP00515	申请日期	1987.09.09
申请人	MERCK PATENT GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG;SCHEUBLE, BERNHARD;WEBER, GEORG;KURMEIER, HANS-ADOLF;WAECHTLER, ANDREAS;REIFFENRATH, VOLKER;HITTICH, REINHARD	发明人	SCHEUBLE, BERNHARD;WEBER, GEORG;KURMEIER, HANS-ADOLF;WAECHTLER, ANDREAS;REIFFENRATH, VOLKER;HITTICH, REINHARD
分类号	C09K19/02;C09K19/18;C09K19/34;C09K19/42;G02F1/137;G02F1/139	主分类号	C09K19/02
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