Abstract: The invention relates to a manufacturing process of a pixel array of a thermal pattern sensor comprising the steps of: providing a substrate; depositing a first layer of electrically conductive material, including depositing electrically conductive tracks, depositing of connector pins and depositing a ground strip; depositing of second layer of pyroelectric material covering the tracks and leaving at least part of the connector pins free; depositing of third layer of electrically conductive material; depositing of fourth layer of dielectric material in contact with the third layer; depositing of a fifth layer including electrically conductive heating tracks; depositing of a sixth protective layer, wherein the step of depositing the second and/or third and/or fourth and/or sixth layer is carried out by slot-die coating.

Abstract: Thermal pattern sensor comprising several pixels arranged on a substrate, each pixel including at least: a pyroelectric capacitance formed by at least one portion of pyroelectric material arranged between at least one lower electrode and at least one upper electrode, with the lower electrode arranged between the substrate and the portion of pyroelectric material, a dielectric layer such that the upper electrode is arranged between the portion of pyroelectric material and the dielectric layer, a heating element including at least one deposition of electrically conductive particles and such that the dielectric layer is arranged between the upper electrode and the heating element, a protective layer arranged between the dielectric layer and the heating element and including at least one material of which the Shore A hardness is greater than or equal to around 60.

Abstract: The invention relates to a manufacturing process of a pixel array of a thermal pattern sensor comprising the steps of: providing a substrate; depositing a first layer of electrically conductive material, including depositing electrically conductive tracks, depositing of connector pins and depositing a ground strip; depositing of second layer of pyroelectric material covering the tracks and leaving at least part of the connector pins free; depositing of third layer of electrically conductive material; depositing of fourth layer of dielectric material in contact with the third layer; depositing of a fifth layer including electrically conductive heating tracks; depositing of a sixth protective layer, wherein the step of depositing the second and/or third and/or fourth and/or sixth layer is carried out by slot-die coating.

Abstract: Thermal pattern sensor comprising several pixels arranged on a substrate, each pixel including at least: a pyroelectric capacitance formed by at least one portion of pyroelectric material arranged between at least one lower electrode and at least one upper electrode, with the lower electrode arranged between the substrate and the portion of pyroelectric material, a dielectric layer such that the upper electrode is arranged between the portion of pyroelectric material and the dielectric layer, a heating element including at least one deposition of electrically conductive particles and such that the dielectric layer is arranged between the upper electrode and the heating element, a protective layer arranged between the dielectric layer and the heating element and including at least one material of which the Shore A hardness is greater than or equal to around 60.

Abstract: The invention relates to a method for manufacturing adjacent first and second areas of a surface, said areas consisting, respectively, of first and second materials that are different from each other. Said method involves: depositing a first liquid volume that encompasses the first area and comprises a solvent in which the first material is dispersed; depositing a second liquid volume that encompasses the second area and comprises a solvent in which the second material is dispersed; and removing the solvents. According to the invention, the solvents of the first and second volumes are immiscible, and the second volume is simultaneously or consecutively deposited with the deposition of the first volume, before the first volume reaches the second area.

Abstract: The present invention relates to an organic transistor comprising a conductive element which forms a drain; a conductive element which forms a source located away from the drain; a conductive element which forms a gate having a surface which faces the drain and a surface which faces the source; a semiconducting layer which is in contact with the drain and the source; and a dielectric layer located between, firstly, the gate and, secondly, the source and the drain with the dielectric layer having a dielectric permittivity which varies depending on its thickness. According to the invention, the dielectric layer comprises a layer of a first dielectric material having a dielectric permittivity of less than four in which there is formed, at least between said opposite-facing surfaces, a volume of a second material, said volume having an overall cross-section which tapers from gate towards the space between drain and source and in that the relative dielectric permittivity of the second material exceeds four.

Abstract: The invention relates to a device comprising a layer made from a fluoropolymer, of which at least part of the surface is covered with a composition comprising a polymer having at least one fluorinated function and at least one acid or base function and forming a bonding layer on said fluoropolymer, said bonding layer being fully or partly covered by another layer.

Abstract: The invention relates to a method for manufacturing adjacent first and second areas of a surface, said areas consisting, respectively, of first and second materials that are different from each other. Said method involves: depositing a first liquid volume that encompasses the first area and comprises a solvent in which the first material is dispersed; depositing a second liquid volume that encompasses the second area and comprises a solvent in which the second material is dispersed; and removing the solvents. According to the invention, the solvents of the first and second volumes are immiscible, and the second volume is simultaneously or consecutively deposited with the deposition of the first volume, before the first volume reaches the second area.

Abstract: A method for producing topologies on the surface of an organic thin film which includes a step of localized spraying of one liquid material that is immiscible with the material constituting the thin film.

Abstract: The present invention relates to an organic transistor comprising a conductive element which forms a drain; a conductive element which forms a source located away from the drain; a conductive element which forms a gate having a surface which faces the drain and a surface which faces the source; a semiconducting layer which is in contact with the drain and the source; and a dielectric layer located between, firstly, the gate and, secondly, the source and the drain with the dielectric layer having a dielectric permittivity which varies depending on its thickness, According to the invention, the dielectric layer comprises a layer of a first dielectric material having a dielectric permittivity of less than four in which there is formed, at least between said opposite-facing surfaces, a volume of a second material, said volume having an overall cross-section which tapers from gate towards the space between drain and source and in that the relative dielectric permittivity of the second material exceeds four.

Abstract: The invention relates to a device comprising a layer made from a fluoropolymer, of which at least part of the surface is covered with a composition comprising a polymer having at least one fluorinated function and at least one acid or base function and forming a bonding layer on said fluoropolymer, said bonding layer being fully or partly covered by another layer.

Abstract: The mixture according to the invention comprises: molecules having physicochemical properties, monomers, carrying crosslinkable functions, and representing at least 30% by weight of the mixture, advantageously at least 40% by weight. This mixture is used in particular in methods for fabricating and sealing crystal-containing cells or batteries, consisting of juxtaposed troughs.

Abstract: The invention provides a method of filing a PDLC cell, a polymerizable mixture suitable for this purpose as well as a display device provided with such a PDLC cell. The mixture in accordance with the invention comprises two types of non-volatile reactive monomers, the first type of monomer being readily miscible with liquid crystalline material and the second type of monomer being poorly miscible with the liquid crystalline material. Such mixtures prove to be very stable. In addition, when such mixtures are used in cells, problems regarding compositional drift do not occur. Cells in which the inventive mixture is used demonstrate a relatively low hysteresis as well as a relatively low switching voltage. By virtue thereof, it is very attractive to use these cells in a display device.