Abstract:
The invention relates to a nuclear magnetic resonance imaging radio frequency—receiver (112; 216; 308; 404), the receiver (112; 216; 308; 404) being adapted to receive analogue signals from at least one radio frequency receiver coil unit (106; 200; 202; 300; 400; 402), the radio frequency receiver (112; 216; 308; 404) comprising: an analogue-digital converter (118; 226) to convert the analogue pre-amplified magnetic resonance signal into a digital signal, means (120; 230) for digital down converting the digital signal and a first communication interface (130; 252) adapted for transmitting the down converted digital signal via a communication link (e.g. wireless, optical or wire-bound).
Abstract:
The invention relates to a method for photo-embossing a monomer-containing layer for obtaining a photovoltaic cell, a light emitting diode (LED), or a light emitting electrochemical cell (LEC) by the steps of: (a) optionally providing one or more layers onto the surface of the monomer-containing layer, (b) irradiating through a mask a layer consisting of a homogeneous blend of at least two different compounds, at least one of which is a polymerizable monomer, to obtain a monomer-containing layer with exposed and non-exposed areas; (c) optionally providing further layers onto the surface of the monomer-containing layer; (d) expanding the exposed or the non-exposed areas by diffusing at least one of the monomers to the exposed areas to obtain a corrugated surface of the layer; or interchanging steps c) and d).
Abstract:
An electronic device (10) comprises a substrate (100) carrying a single electrode structure (120) and a plurality of electro-optical elements (140; 160, 180). The plurality of electro-optical elements (140, 160, 180) at least includes a first electro-optical element (140) covering a first part of the electrode structure (120), the first electro-optical element (140) comprising a first electrooptical material with a first transmission/voltage response characteristic and a second electro-optical element (160) covering a second part of the electrode structure (120), the second electro-optical element (160) comprising a second electro-optical material with a second transmission/vokage response characteristic. Consequently, the various electro-optical elements (140; 160 180) can be individually controlled with a single electrode structure by applying variable voltages.
Abstract:
A method is provided of producing an active matrix display device having an optical layer comprising a mixture of an electro-optical material and a polymer precursor. An upper layer of the active plate is processed in dependence on a difference between the transmission or reflection characteristics of the row and column conductors and of the pixel electrodes, thereby to process the upper layer in dependence on the row and column pattern or the pixel electrode pattern. The optical layer is then exposed from above the substrate to a stimulus for polymerizing the polymer precursor into a discrete polymer surface layer, thereby enclosing the electro-optical material between the polymerized material and the active plate to define display pixels. Enclosed bodies of electro-optical material defining display pixels are defined in a pattern defined by the processing of the upper layer. This method uses the existing row and column pattern or pixel electrode pattern to define in a self-aligned manner the partitions between liquid crystal cell pockets.
Abstract:
The invention relates to an electrophoretic display panel (11) comprising one or more pixels (20; 42) comprising a fluid with dispersed charged particles (30) and a polymer wall (21; 44) enclosing the fluid. The invention further relates to a method for manufacturing an electrophoretic display panel (11) comprising one or more pixels (20; 42) comprising the steps of providing a material system comprising a fluid with dispersed charged particles (30) and a photo-polymerizable substance and exposing one or more selected portions of said material system to radiation to form a polymer wall (21; 44) enclosing the fluid by polymerizing said photo-polymerizable substance.
Abstract:
The invention relates to a micro-mechanical thermal structure for modulating a light beam and a method for manufacturing such a structure. The micro-mechanical structure comprises two layers of material with different thermal expansion coefficients in a first direction and a second direction respectively, in which the first direction is transverse to the second direction and the two layers comprise an oriented polymer and the director of the molecules of the oriented polymer of the first layer is transverse to the director of the molecules of the oriented polymer of the second layer. An array of such micro-mechanical structures may form a thermo-optical modulator for modulating light. The method comprises a step of providing a mold with an orientation-inducing layer to obtain a molecular orientation in a mono-meric state of liquid crystalline monomers and a step of fixing the molecular orientation by photo-polymerization.
Abstract:
A liquid-filled container (1) comprises a first and a second sheet (3, 5) between which a thin film of liquid (7) is dispersed. Supporting members, (9), which extend from the first sheet to the second sheet, are covalently bonded to the first and the second sheet to make the container mechanically robust. In an advantageous embodiment, the thin film of liquid, the supporting members and the second sheet form, in combination, a stratified-phase-separated composite. The liquid-filled container is particularly suitable for use in a liquid crystal display.
Abstract:
A method of forming a liquid-crystal display device having a display cell comprises forming retardation foils on substrattes using polymerized or vitrified liquid-crystal material wherein the liquid-crystal molecules of the polymerized or vitrified liquid-crystal material have a tilt angle with respect to a plane parallel to the substrates and so that the retardation foils have substantially complementary indicatrices and so that each one of the retardation foils brings about the compensation of approximately half the display cell in the driven state.
Abstract:
The invention relates to a process for the preparation of a polymeric relief structure comprising the steps of coating a substrate with a coating composition comprising one or more radiation-sensitive ingredients, locally treating the coated substrate with electromagnetic radiation having a periodic or random radiation-intensity pattern, forming a latent image, and polymerizing and/or crosslinking the resulting coated substrate, wherein the coating composition comprises one or more radical scavengers in an amount sufficient to inhibit/retard substantial polymerization in the non-treated areas of the coated substrate, and low enough to allow polymerization and/or crosslinking in the treated areas in step c, with the proviso that the amount of oxygen present in the coating composition is not equal to the equilibrium amount of oxygen present when the coating composition is in contact with air.
Abstract:
A dichroic guest-host polarizer comprises an oriented polymerized liquid crystal host and aligned therewith a dichroic guest. The dichroic ratio of the polarizer is about 15 or more. The polarizer may have a small thickness, be manufactured using a wet deposition method, optionally in accordance with a desired pattern, and be provided on the inside of a liquid crystal cell. Polymerizable liquid crystals having a highly ordered mesophase which may be suitable used to obtain highly oriented polymer films such as polarizer films are disclosed.