申请人:——
公开号:US04490278A1
公开(公告)日:1984-12-25
The invention relates to liquid crystal nematic substances for electro-optical devices for the modulation of light, for the reproduction of numerals, signs and images as well as an orienting medium for spectroscopy and gas chromatography. It was found that compounds containing two or three rings, connected by carboxyl groups are new liquid crystal nematic substances of the general formula ##STR1## where R.sup.1 =C.sub.n H.sub.2n+1, CN; R.sup.2 =C.sub.m H.sub.2m+1, CN;R.sup.3 =H, CH.sub.3, C.sub.2 H.sub.5 Cl, Br; x=0 or 1; m,n=numbers from 1 to 10 are suitable for electro-optical arrangements for the modulation of transmitted or reflected light as well as for the reproduction of numeral signals and images, and further, as an orienting medium for spectroscopy and gas chromotography. Other liquid crystal substances or non-liquid crystalline substances, particularly dyes, may be added to the substances according to the invention.
该发明涉及用于电光装置的液晶向列相物质,用于光的调制,用于数字、标志和图像的再现,以及用作光谱学和气相色谱的取向介质。发现含有两个或三个环,通过羧基连接的化合物是一种新的液晶向列相物质,其一般式为##STR1##其中R.sup.1 =C.sub.n H.sub.2n+1, CN; R.sup.2 =C.sub.m H.sub.2m+1, CN; R.sup.3 =H, CH.sub.3, C.sub.2 H.sub.5 Cl, Br; x=0或1; m,n=从1到10的数字适用于用于电光排列的调制透射或反射光以及数字信号和图像的再现,还可用作光谱学和气相色谱的取向介质。其他液晶物质或非液晶物质,特别是染料,可以添加到该发明的物质中。