A polymer network liquid crystal poly-CdSe TFT active matrix display

Effects of Composition and Polymerization Conditions on the Electro-Optic Performance of Liquid Crystal–Polymer Composites Doped with Ferroelectric Nanoparticles

“…They may be used to fabricate electrically addressable flexible films, which can be switched, for example, between a transparent and a translucent state [ 10 , 11 , 12 , 13 ]. In contrast, LC/polymer composites with interconnected LC regions or liquid crystal films pervaded by a fine network of interconnected fibers [ 14 , 15 ] are referred to as anisotropic gels [ 15 ], polymer-stabilized liquid crystals (PSLCs) [ 16 , 17 , 18 , 19 ], polymer network liquid crystals (PNLCs) [ 20 , 21 ], or polymer network-stabilized liquid crystals [ 22 ]. Applications of such composites with a low polymer fraction utilize the stabilizing effect of an anisotropic polymer network (typically formed by the in situ photopolymerization of reactive mesogens) on the LC orientation [ 14 , 15 ], on one of several different switching states (for example, polymer-stabilized cholesteric texture, PSCT [ 16 ]), or on the temperature range of the thermal stability of a particular mesophase (for example, the polymer-stabilized blue phase, PSBP [ 17 ]).…”

Comparison of reflective PNLCDs and reflective single‐polarizer Heilmeier guest‐host displays

“…The PNLC is transparent when a voltage is applied so that the PNLCD reflects incoming light on the Al reflector electrode in the specular direction. 5 The reflective single-polarizer Heilmeier guest-host (HGH) display is a normally white (NW) GH display and is based on the absorption of polarized light. 6 When no voltage is applied, the dyes (guest) and LC (host) have a homeotropic alignment resulting in a transparent LC layer.…”