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1. 发明申请

WO1987005617A1 LIQUID CRYSTAL DISPLAYS AND FLUORESCENT DYES FOR USE THEREIN 审中-公开
标题翻译：液晶显示器及其使用的荧光灯
公开(公告)号：WO1987005617A1
公开(公告)日：1987-09-24
申请号：PCT/GB1987000196
申请日：1987-03-20
申请人： THE GENERAL ELECTRIC COMPANY, P.L.C. , VAN EWYK, Robert, Leopold , O'CONNOR, Ingrid, Martina , MOSLEY, Alan , JONES, Francis , BLACKBURN, Christopher , GRIFFITHS, John
发明人： THE GENERAL ELECTRIC COMPANY, P.L.C.
IPC分类号： C09B03/14
CPC分类号： G02F1/13762 , C09B3/14 , C09K19/60 , C09K19/606 , Y10T428/1041
摘要： Pleochroic fluorescent dyes of general formula (I), in which R is hydrogen or an aliphatic hydrocarbon radical containing not more than 20 carbon atoms and -CH2- between carbon atoms or adjacent to the bicyclo[2.2.2]octane residue may be replaced by -O-, may be dissolved in liquid crystal host material to form displays which are caused to fluoresce by incident low-energy ultraviolet initially absorbed by the liquid crystal host material and then internally transferred to the fluorophor. These dyes have greater stability to ultraviolet than other perylenedicarboxylic diesters while possessing good fluorescent properties and satisfactory order parameters. In formula (I), R is preferably a straight or branched alkyl and/or cycloalkyl group having 3 to 10 carbon atoms, preferably 5 to 7 carbon atoms. The liquid crystal host material preferably contains an energy-transfer agent such as a 4-substituted 4''-cyanoterphenyl. The 4-pentyl- and 4-propyl- bicyclo[2.2.2]oct-1-yl perylenedicarboxylates of formula I and solutions of these dyes in nematic liquid crystal host "E7" (a mixture based on cyanobiphenyls containing 8% 4-pentyl-4"-cyanoterphenyl) are described in examples.
摘要翻译：通式（I）的多色荧光染料，其中R是氢或含有不超过20个碳原子和碳原子之间或与二环[2.2.2]辛烷残基相邻的-CH 2 - 的脂族烃基可以被 -O-可以溶解在液晶主体材料中以形成由最初被液晶主体材料吸收的入射低能紫外线引起的荧光发射，然后内部转移到荧光体的显示器。这些染料具有比其它苝二羧酸二酯更高的紫外线稳定性，同时具有良好的荧光性能和令人满意的顺序参数。在式（I）中，R优选为具有3至10个碳原子，优选5至7个碳原子的直链或支链烷基和/或环烷基。液晶主体材料优选含有诸如4-取代的4“ - 氰基苯基的能量转移剂。式I的4-戊基 - 和4-丙基 - 二环[2.2.2]辛-1-基辛基-1-基酯和这些染料在向列型液晶宿主“E7”中的溶液（基于含有8％4-戊基的氰基联苯 -4“ - 氰基苯基）。

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