A dye composition dissolvable within a liquid crystal host device (including: polymer dispersed liquid crystal, polymer network liquid crystal, polymer stabilized liquid crystal, liquid crystal displays and similar devices), comprising eutectic mixtures of dichroic metallomesogen molecules. The aforesaid metallomesogen molecules comprise chromophore groups synthesized by physical and chemical mixing methods.
Polymer stabilized liquid crystals and flexible devices thereof
申请人:Sniaricerche S.C.P.A.
公开号:EP0747461A1
公开(公告)日:1996-12-11
The present invention is directed to a method for manufacturing polymer stabilized liquid crystals liquid crystals on large flexible films by lamination wherein the polymer stabilized liquid crystals contain microparticles or microspacers. Also, a method for manufacturing polymer stabilized liquid crystals on large flexible films by lamination of substrates having a replicated structure is provided. Polymer-free liquid crystals may also be used in some of the methods of the invention.
Process and materials for highly transparent polymer dispersed liquid crystals
申请人:Sniaricerche S.C.P.A.
公开号:EP0787782A2
公开(公告)日:1997-08-06
The present invention relates to a process for making a polymer dispersed liquid crystal material comprising: (a) mixing a liquid crystal material with an oligomer; (b) partially curing the resulting mixture of step (a); (c) thermally inducing phase separation of the resulting mixture of step (b); and (d) post curing the resulting polymer dispersed liquid crystal matrix of step (c), to complete phase separation.
Liquid crystal dispersed polymer electrooptical films having reverse morphology
申请人:Sniaricerche S.C.P.A.
公开号:EP0927753A1
公开(公告)日:1999-07-07
The invention provides a liquid crystal dispersed polymer electrooptical film comprising a liquid crystal material and a polymer material in which the electrooptical film has a reverse morphology and the liquid crystal material has cholesteric properties. The invention also provides a liquid crystal dispersed polymer electrooptical film comprising a liquid crystal material and a polymer material in which the electrooptical film has a reverse morphology and substantially no memory effect. Methods for making these electrooptical films are also provided.
Electro-optically concealable vehicle instrument panel and method of constructing the same
申请人:Ergom Automotive S.p.a.
公开号:EP1372023A2
公开(公告)日:2003-12-17
An instrument panel of a vehicle provided with a rigid front cover panel for protecting the underlying instruments; the cover panel is electro-optical and includes: two transparent conductive layers, a liquid crystal-based material and a coloring agent that is diffused in the liquid crystal-based material, so that the colouring agent can conceal the underlying instruments when inactive and show them during excitation.