Abstract:
Disclosed is a display comprising an arrangement of a plurality of optically anisotropic rotatable elements, each of the rotatable elements having a surface in contact with an enabling fluid, the rotatable elements being electrically dipolar in the presence of the enabling fluid and thus being subject to rotation upon application of an electric field, the rotatable elements being free to rotate in place but not free to translate substantially so as to disrupt the arrangement of rotatable elements, wherein a first portion of the surface contains a mixture of a chelating agent and a spiropyran material of the formula 1 wherein n is an integer representing the number of repeat nullCH2null units and R is nullH or nullCHnullCH2, and wherein a second portion of the surface contains substantially no spiropyran.
Abstract:
A A compound having formula (2) 1 wherein A2 is an electron acceptor moiety; C2 is a conjugated bridging moiety; D2 is an electron donor moiety; S2 is a hydrocarbon, a heterocyclic moiety, or a hetero-acyclic moiety; anull is an integer; Z2 is a polymerizable moiety; and enull is the degree of polymerization.
Abstract:
A device comprising: a liquid crystal composition including a liquid crystal and a liquid crystal domain stabilizing compound, wherein the liquid crystal composition is switchable between a strongly scattering state of a first plurality of smaller liquid crystal domains that strongly scatters a predetermined light and a weakly scattering state of a second plurality of larger liquid crystal domains that weakly scatters the predetermined light; and a liquid crystal containment structure defining a space for the liquid crystal composition.
Abstract:
A liquid crystal composition including: (a) a liquid crystal; and (b) a polymerized liquid crystal domain stabilizing compound comprising a dipolar monomer and a non-dipolar monomer.
Abstract:
A compound having formula (1) 1 wherein: A1 is an electron acceptor moiety; C1 is a conjugated bridging moiety; D1 is an electron donor moiety; S1 is a hydrocarbon, a heterocyclic moiety, or a hetero-acyclic moiety; and anull is an integer, excluding an excluded compound defined by anull is 2, A1 is cyano, C1 is phenyl, D1 is nitrogen, and each S1 is the same alkyl group.
Abstract:
A compound having formula (5) 1 wherein: D5 is an electron donor moiety; C5 is a conjugated bridging moiety; A5 is an electron acceptor moiety; R5 is a spacer moiety; S5 is a hydrocarbon, a heterocyclic moiety, or a hetero-acyclic moiety; and cnull is an integer.
Abstract:
A composition composed of a plurality of microcapsules each including a polymerized, optionally hardened, micelle shell encapsulating a liquid droplet and a particle component.