13 results about "Printed electronics" patented technology

A graphene-based composition is disclosed comprising functionalized graphene powder produced by detonation, plasma synthesis, liquid phase exfoliation, mechanical exfoliation among other graphene production methods known in the art. The graphene powder includes oxygen-containing functional groups such as hydroxyl, epoxy, carbonyl, and carboxyl, with a carbon-to-oxygen atomic ratio ranging from approximately 1.0 to 99.0. The powder is dispersed in an organic solvent, non-organic solvent, aqueous medium, surfactant, or POSS-based medium at a solids concentration between about 2% w / v and 30% w / v. Methods of functionalizing the graphene powder and forming dispersions are provided, along with methods of making ink dispersions with polymer binders and printed or coated articles formed therefrom. The graphene formulations exhibit tunable surface chemistry, controlled defect structures as measured by Raman spectroscopy, and stable dispersion properties suitable for applications in printed electronics, conductive coatings, sensing platforms, and lightweight composites.

The application discloses an ink viscosity determination method and device and a printer. In the method, the discovery that the ink viscosity can significantly affect the structural vibration characteristics of a piezoelectric nozzle is utilized, a structural vibration fluctuation signal used for representing the structural vibration characteristics of the piezoelectric nozzle is utilized, the ink viscosity in the piezoelectric nozzle is determined, the self-sensing measurement of the piezoelectric nozzle on the internal ink viscosity is realized, a feasible way is provided for the closed-loop feedback regulation of the jet performance and the precise control of the ink viscosity, and the reliability of the piezoelectric inkjet printing technology in emerging applications such as printed electronics and sensors can be promoted. The method comprises the following steps: detecting a structural vibration fluctuation signal of a piezoelectric nozzle, wherein the structural vibration fluctuation signal is used for representing the structural vibration characteristics of the piezoelectric nozzle; and determining the ink viscosity in the piezoelectric nozzle according to the structural vibration fluctuation signal.

The utility model belongs to the technical field of printing electronics, and particularly relates to a flexible electrifiable light-emitting structure which comprises a light-emitting structure body. The light-emitting structure body comprises a base material layer, a pattern layer printed on the top of the base material layer in a silk-screen mode, a light-emitting layer printed on the top of the pattern layer in a silk-screen mode, insulation protection glue packaged on the top of the light-emitting layer and an outer protection layer packaged on the top of the insulation protection glue, and a flexible flat cable is arranged at the end of the pattern layer. According to the utility model, screen printing one-step forming is adopted, the processing is convenient, the processing cost and the part cost are relatively low, and the safety and the service life of the light-emitting structure main body are further improved and prolonged through the packaged insulation protection glue and the outer protection layer.

A convertible car lighting assembly includes the soft top of a convertible car. The soft top is configured to switch between a closed and an open position relative to the body of the convertible car. Printed electronics are applied to the soft top. A lighting device is mounted on the soft top. The lighting device is powered by electrical energy supplied to it by the printed electronics.

An aircraft cabin component for use in an aircraft cabin of an aircraft includes a component having at least one parameterized surface. A flexible OLED display assembly is adhered to the at least one parameterized surface of the component and closely conforms to the curvature of the at least one parameterized surface. The flexible OLED display assembly includes a printed electronics layer and an array of OLEDs deposited on the printed electronics layer.

The invention provides a convertible vehicle lighting assembly and a lighting method. A convertible vehicle lighting assembly includes a roof of a convertible vehicle. The roof is configured to transition between a closed position and an open position relative to a body of the convertible vehicle. Printed electronics are applied to the top. A lighting device is mounted to the top. The lighting device is powered by electrical energy transferred to the lighting device through the printed electronics.

This invention provides a high-adhesion-strength copper paste, its preparation method, and its applications. By weight, the high-adhesion-strength copper paste comprises 80-92 parts of micro / nano copper powder and 8-20 parts of an organic carrier, which includes a mixed epoxy resin, a mixed curing agent, a diluent, a filler, and a coupling agent. This invention combines dual-reactive-site epoxy resin, multi-reactive-site epoxy resin, and silicone-modified epoxy resin, and further utilizes mixed curing agents with different activities to achieve enhanced and toughened effects. This results in copper paste products with excellent adhesion and aging resistance, enabling uniform dispersion of copper particles in the paste. Even after freezing and standing, it maintains stable performance without phase separation during long-term storage. The significant improvement in adhesion strength (i.e., shear strength) during curing further enhances the reliability and durability of the product, making it suitable for most printed electronics fields. It can replace existing silver pastes to reduce costs and increase efficiency in industry production.

A body sensing unit having a pad part which adheres to the skin and a lead or tail part which electrically connects to the pad part. The lead or tail part is formed by a flat substrate, for example carrying printed electronics, and which has a novel shape which forms a coil or loop, or part thereof, around at least part of the pad part. The novel shape changes the distribution of stress if the tail is displaced, e.g. pulled or tugged, during use, lessening the chance that the pad part becomes detached from the skin.

The invention relates to a catheter and a method of manufacturing a catheter based on printed electronics and a printed electronics process. The catheter includes a steerable sheath including an anchor ring and a stay wire connected to the anchor ring, a printed trace printed on the steerable sheath using a printing electronic process, and a printed assembly printed on the steerable sheath using a printing electronic process and connected to the steerable sheath and the printed trace.

A graphene-based composition is disclosed comprising functionalized graphene powder produced by detonation, plasma synthesis, liquid phase exfoliation, mechanical exfoliation among other graphene production methods known in the art. The graphene powder includes oxygen-containing functional groups such as hydroxyl, epoxy, carbonyl, and carboxyl, with a carbon-to-oxygen atomic ratio ranging from approximately 1.0 to 99.0. The powder is dispersed in an organic solvent, non-organic solvent, aqueous medium, surfactant, or POSS-based medium at a solids concentration between about 2% w / v and 30% w / v. Methods of functionalizing the graphene powder and forming dispersions are provided, along with methods of making ink dispersions with polymer binders and printed or coated articles formed therefrom. The graphene formulations exhibit tunable surface chemistry, controlled defect structures as measured by Raman spectroscopy, and stable dispersion properties suitable for applications in printed electronics, conductive coatings, sensing platforms, and lightweight composites.

The application discloses a wireless flexible ethylene sensing detection device and method based on MXene printed electronic devices. The sensor includes a flexible substrate, a printed MXene interdigital electrode, a printed MXene radio frequency antenna, and an ethylene sensing modification layer. The printed MXene interdigital electrode and the printed MXene radio frequency antenna are formed by one-time printing of additive-free MXene ink through a silk screen, and the radio frequency antenna and the interdigital electrode contained therein form a radio frequency resonance network with the sensing modification layer. The technology can respond to the ethylene concentration in the environment in real time and produce corresponding resonance parameter changes, and the wireless reading is realized through the mutual inductance principle. The method provides a new technical platform for wireless passive plant ethylene detection, and also provides an in-situ, real-time, simple and rapid sensing detection device for the application of plant wearable sensors in precision agriculture and food preservation.

The invention discloses conductive silver paste containing photosensitive active aluminoborate glass, and belongs to the technical field of electronic materials. The photosensitive active aluminoborate glass comprises the following chemical components in percentage by oxide mole: 45%-65% of B2O3, 5%-30% of Al2O3, 1%-25% of PbO, 1%-10% of Bi2O3 and specific types of transition metal oxides. The glass has excellent absorption capability on laser with the wavelength of 808-1064nm, and can efficiently convert light energy into heat energy. The conductive silver paste is prepared by taking the powder of the glass as a key functional phase and matching with silver powder, an organic carrier and optional additives. The conductive silver paste disclosed by the invention is matched with a laser-assisted sintering process, local, rapid and low-temperature sintering of an electrode can be realized, and the formed electrode is dense, low in sheet resistance and strong in adhesive force, and is particularly suitable for the fields of printed electronics, photovoltaic cell metallization contact and the like.

The invention relates to a flexible insole integrated with a moisture power generation-energy storage unit, and belongs to the technical field of intelligent wearable equipment. The insole is of a multi-layer bionic structure and comprises a surface layer, an upper layer, a lower layer and an upper layer from top to bottom, and the surface layer has the directional moisture permeable characteristic and allows water to pass through unidirectionally from top to bottom and blocks outside dirt; a moisture power generation-energy storage integrated device and a system control PCB are embedded in the integrated functional layer, and the integrated functional layer is used for capturing sweat and moisture and converting and storing the sweat and moisture into electric energy; the flexible circuit layer is used for preparing a flexible circuit by adopting a printing electronic technology, is connected with the physiological signal sensor and is powered by the functional layer to collect human body data; and the packaging bottom layer has packaging protection and moisture management functions, and the surface of the packaging bottom layer is provided with a micro evaporation hole array which can be opened and closed according to needs, so that controllable rapid drainage and evaporation are realized. Through the multi-functional hierarchical collaborative design, energy self-supply, intelligent sensing and bionic perspiration are integrated, and the core problems of energy supply, comfort and function integration of the flexible insole in a real wearing environment are solved.