RESEARCH FRONTIERS INCORPORATED Patent applications |
Patent application number | Title | Published |
20130208342 | SPD FILMS WITH DARKER OFF-STATE TRANSMITTANCES AND LIGHTER ON-STATE TRANSMITTANCES - A light valve film forming a light-modulating element of a light valve, the film comprised of a cross-linked polymer matrix with a plurality of droplets of a liquid light valve suspension distributed therein. The film has a phase ratio: % particle number value calculated by the formula: | 08-15-2013 |
20120236393 | SPD FILMS FORMED WITH CONDUCTIVE POLYMER-COATED SUBSTRATES - A suspended particle device (SPD) film or laminate thereof. The film includes substrates coated on their inner surface with a polythiophene-based conductive polymer serving as electrode means. The polymer may be applied in the form of an aqueous composition also comprising solvent(s) and binder(s). A preferred polymer is a polyethylene dioxythiophene (PEDT) polymer. The polymer may be doped with polystyrene sulfonate. The polymer may be connected to a conductive material that extends beyond an outer boundary of the film to connect with a voltage source. Adhesive strength between the cured emulsion and the polymer is at least 1.46 N/25 mm. A further aspect constitutes a method for increasing adhesion between a cured suspended particle device emulsion and electrode means in a light valve film. The method comprises applying the polymer on an inner surface of the substrates constituting the film to serve as the electrode means. | 09-20-2012 |
20090153944 | SPD FILMS AND LIGHT VALVES INCORPORATING OVERCOATINGS WHICH ENHANCE FILM ADHESION TO SUBSTRATES, HAVE GOOD COHESION AND PROTECT AGAINST ELECTRICAL SHORT CIRCUITS - An electro-optical device, e.g., a suspended particle device (SPD) adapted for controlling the transmission of radiation wherein the device is provided with at least one layer of an overcoating adapted to enhance adhesion on at least a portion of a surface between a film serving as a light modulating element and electrode means for applying an electrical field to said film, wherein the overcoating is formed from a material comprising a member selected from the group consisting of (a) titanium dioxide (TiO | 06-18-2009 |