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    • 34. 发明授权
    • Polymeric film
    • 聚合膜
    • US06218578B1
    • 2001-04-17
    • US09589350
    • 2000-06-08
    • David CoatesSimon GreenfieldEmma Jane Jolliffe
    • David CoatesSimon GreenfieldEmma Jane Jolliffe
    • C07C31900
    • C09K19/38C09K19/542C09K2219/01C09K2219/03
    • The invention relates to a polymeric film composed of an optically anisotropic material made from a cross-linked synthetic resin composition comprising a polymer network, being obtainable by copolymerization of a mixture comprising (a) at least one monomer or oligomer, each of said monomers or oligomers having at least two polymerizable functional groups selected from the group consisting of (meth-)acrylate ester, epoxy and vinyl ether, (b) at least one achiral liquid crystalline monomer or oligomer, each of said monomersloligomers having mesogenic groups and one polymerizable functional group selected from the group consisting of (meth-)acrylate ester, epoxy and vinyl ether.
    • 本发明涉及由包含聚合物网络的交联合成树脂组合物制成的光学各向异性材料组成的聚合物膜,该聚合物网络可通过使包含(a)至少一种单体或低聚物,每种所述单体的混合物或 具有至少两个选自(甲基)丙烯酸酯,环氧和乙烯基醚的可聚合官能团的低聚物,(b)至少一种非手性液晶单体或低聚物,所述单体单体具有介晶基团和一个可聚合官能团 选自(甲基)丙烯酸酯,环氧和乙烯基醚的基团。
    • 35. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US06217955B1
    • 2001-04-17
    • US09117710
    • 1998-08-04
    • David CoatesSimon GreenfieldMark GouldingJames HanmerShirley MardenOwain Llyr Parri
    • David CoatesSimon GreenfieldMark GouldingJames HanmerShirley MardenOwain Llyr Parri
    • C09K1938
    • C09K19/38C09K2219/03G02B5/3016G02F1/133528Y10T428/1041
    • A liquid crystal display device containing a liquid crystal cell and at least one reflective polarizer or a polarizer combination having at least one reflective polarizer as a means to generate circular polarized light. The reflective polarizer includes an optically active layer of an anisotropic polymer material with a helically twisted planar molecular orientation. The material is oriented so that the axis of the molecular helix extends transversely to the layer, and the pitch of the molecular helix is varied in such a manner that the difference between the maximum pitch and the minimum pitch is at least 100 nm. The reflective polarizer is obtainable by copolymerization of a mixture of a chiral polymerizable mesogenic material including a) at least one achiral polymerizable mesogenic compound having at least one polymerizable functional group in the presence of b) at least one chiral polymerizable mesogenic compound having one polymerizable functional group and/or at least one non-polymerizable chiral mesogenic compound, c) an initiator, d) optionally a non-mesogenic compound having at least one polymerizable functional group, e) optionally a dye and, f) optionally a stabilizer. The invention also discloses methods of manufacturing such a reflective polarizer. The invention further discloses a mixture of a chiral polymerizable mesogenic material used for manufacturing such a reflective polarizer.
    • 一种液晶显示装置,其包含液晶单元和至少一个反射偏振器或具有至少一个反射偏振器的偏振器组合,作为产生圆偏振光的手段。 反射偏振器包括具有螺旋扭曲的平面分子取向的各向异性聚合物材料的光学活性层。 该材料被定向成使得分子螺旋线的轴线横向延伸,并且分子螺旋线的间距以最大间距和最小间距之差至少为100nm的方式变化。 反射型偏振片可通过手性可聚合介晶材料的混合物共聚获得,该混合物包括:a)至少一种具有至少一个可聚合官能团的非手性可聚合介晶化合物,其中b)至少一种具有一个可聚合官能团的手性可聚合介晶化合物 基团和/或至少一种不可聚合的手性介晶化合物,c)引发剂,d)任选的具有至少一个可聚合官能团的非介晶化合物,e)任选的染料和f)任选的稳定剂。 本发明还公开了制造这种反射偏振器的方法。 本发明还公开了用于制造这种反射偏振器的手性可聚合介晶材料的混合物。
    • 38. 发明授权
    • Reactive liquid crystal compounds
    • 活性液晶化合物
    • US5622648A
    • 1997-04-22
    • US321884
    • 1994-10-14
    • Owain L. ParriDavid CoatesSimon GreenfieldIan Bonny
    • Owain L. ParriDavid CoatesSimon GreenfieldIan Bonny
    • C07C69/54C07C69/92C09K19/12C09K19/20C09K19/38C09K19/34
    • C09K19/12C07C69/54C07C69/92C09K19/2007C09K19/3847C09K19/3852C09K2019/0448
    • Disclosed are liquid crystal compounds of formula IR.sup.1 --P--X--(A.sup.1 --Z.sup.1).sub.n --A.sup.2 --R.sup.2 IwhereinR is ##STR1## W is H, Cl or C.sub.1-5 -alkyl, and m is 1-7,P is C.sub.1-12 alkylene, one or more CH.sub.2 groups optionally being replaced by O,X is --O--, --S--, --COO--, --OCO-- or a single bond,R.sup.2 is C.sub.1-15 -alkyl optionally substituted by halogen, one or more CH.sub.2 groups optionally replaced by --O--, --S--, --CO--, --O--CO--, --CO--O-- or --O--CO--O--; R.sup.1 --P--X, CN, F, Cl or --V--Q--T,V is --O--, --S-- or a single bond,Q is --CH.sub.2 --, --CHF--, --CF.sub.2 --,T is F or Cl,n is 1 or 2,A.sup.1, A.sup.2 are 1,4-phenylene optionally substituted by F, Cl, CN or --W--C.sub.r H.sub.s F.sub.2r+1-s, or one of A.sup.1 or A.sup.2 is ##STR2## pyrimidine-2,5-diyl or pyrimidine-2,5 diyl, Z.sup.1 is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 -- or a single bond,r is 1 or 2,s is O, 1, 2, 3, 4, or 5,W is a single bond, --O--, --S-- or --CO--,with the provisos (i) that at least one of A.sup.1 and A.sup.2 is a 1,4-phenylene group which is mono-or polysubstituted by Cl, CN or --W--C.sub.r H.sub.s F.sub.2r+1-s, said substituted 1,4-phenylene group optionally additionally substituted by one or more F-atoms, and (ii) that in case n=2 (a) only one of Z.sup.1 is --COO-- or --OCO-- or (b) at least one of A.sup.1 and A.sup.2 is double substituted or (c) at least two of A.sup.1 and A.sup.2 are substituted.
    • 本发明公开了式IR1-PX-(A1-Z1)n-A2-R2I的其中R是H,或HSCH 2(CH 2)m COO,W是H,Cl或C 1-5 - 烷基的化合物,m是 1-7,P是C1-12亚烷基,一个或多个CH 2基团任选被O取代,X是-O - , - S - , - COO-, - OCO-或单键, 任选被卤素取代的烷基,任选被-O - , - S-,-CO-,-O-CO-,-CO-O-或-O-CO-O-取代的一个或多个CH 2基团; R1-PX,CN,F,Cl或-VQT,V是-O - , - S-或单键,Q是-CH2-,-CHF-,-CF2-,T是F或Cl,n是1 或2,A1,A2是任选被F,Cl,CN或-W-CrHsF2r + 1-s取代的1,4-亚苯基,或者A1或A2中的一个是嘧啶-2,5-二基或嘧啶 - 2,5二基,Z1是-CO-O-,-O-CO-,-CH2CH2-或单键,r是1或2,s是0,1,2,3,4或5,W是 单键,-O - , - S-或-CO-,条件是(i)A1和A2中的至少一个是1,4-亚苯基,其被Cl,CN或 - W-CrHsF2r + 1-s,所述取代的1,4-亚苯基任选地另外被一个或多个F原子取代,和(ii)在n = 2(a)的情况下,只有一个是-COO-或 - OCO-或(b)A1和A2中的至少一个是双取代的或(c)A1和A2中的至少两个被取代。