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3205 results about "Convex structure" patented technology

Friction generator

The invention provides a friction generator, which comprises a first electrode, a second electrode and an intermediate film, wherein the first electrode comprises a first macromoleclar polymer insulation layer of which one side surface is provided with a conductive film; the second electrode comprises a second macromoleclar polymer insulation layer of which one side surface is provided with a conductive film; the intermediate film is fixed on the other side surface of the second macromoleclar polymer insulation layer; the non-fixed surface of the intermediate film is provided with a micro-nano concave-convex structure; the surface of the micro-nano concave-convex structure of the intermediate film on the second electrode and the surface without the conductive film of the first electrode are oppositely fit and are mutually fixedly connected; and the conductive film of the first macromoleclar polymer insulation layer and the conductive film of the second macromoleclar polymer insulation layer are both the voltage and current output electrodes of the friction generator. The invention provides an innovated and effective method by the friction action, and electricity energy is generated by the variation of internal friction electrification electric potential and the induction effect of metal pole plates on two sides. The method is simple and efficient and has low cost.
Owner:NEWNAGY TANGSHAN

GaN group semiconductor light-emitting element with concave and convex structures on the substrate and a production method thereof

Concaves and convexes 1a are formed by processing the surface layer of a first layer 1, and second layer 2 having a different refractive index from the first layer is grown while burying the concaves and convexes (or first crystal 10 is grown as concaves and convexes on crystal layer S to be the base of the growth, and second crystal 20 is grown, which has a different refractive index from the first crystal). After forming these concavo-convex refractive index interfaces 1a (10a), an element structure, wherein semiconductor crystal layers containing a light-emitting layer A are laminated, is formed. As a result, the light in the lateral direction, which is generated in the light-emitting layer changes its direction by an influence of the concavo-convex refractive index interface and heads toward the outside. Particularly, when an ultraviolet light is to be emitted using InGaN as a material of a light-emitting layer, a quantum well structure is employed and all the layers between the quantum well structure and the low temperature buffer layer are formed of a GaN crystal, removing AlGaN. The quantum well structure preferably consists of a well layer made of InGaN and a barrier layer made of GaN, and the thickness of the barrier layer is preferably 6 nm–30 nm.
Owner:TOYODA GOSEI CO LTD

Self-powered pressure sensor

The invention provides a self-powered pressure sensor which comprises a first induction electrode, a second induction electrode and an intermediate film. The first induction electrode comprises a first macromolecular polymer insulating layer, wherein a conductive film is arranged on the surface of one side of the first macromolecular polymer insulating layer. The second induction electrode comprises a second macromolecular polymer insulating layer, wherein a conductive film is arranged on the surface of one side of the second macromolecular polymer insulating layer, and the intermediate film is fixed on the surface of the other side of the second macromolecular polymer insulating layer. The non-fixed surface of the intermediate film is provided with a micro/nano concave-convex structure. The surface of the micro/nano concave-convex structure of the intermediate film on the second induction electrode is just oppositely attached to and fixedly connected with the surface of the first induction electrode not provided with the conductive film, and the conductive film on the first induction electrode and the conductive film on the second induction electrode are both induction signal output poles. The self-powered pressure sensor is ingeniously made by utilizing a principle of electrification by friction and has the advantages of being high in sensitivity, easy to prepare, low in cost, good in stability in use and quick in response speed and the like.
Owner:NAZHIYUAN TECH TANGSHAN LLC

Flexible pressure sensor and manufacturing method thereof

The invention discloses a flexible pressure sensor, which comprises two oppositely-arranged electrode structures, wherein each electrode structure comprises a flexible substrate and a conductive layer arranged on the flexible substrate; the conductive layers of the two electrode structures are connected in a mutually-facing abut joint mode; the flexible substrate comprises a substrate body and multiple convex structures arranged on the substrate body; and the conductive layer covers the surface, with the multiple convex structures, of the flexible substrate. According to the flexible pressure sensor disclosed by the invention, by using the characteristic that the inner multiple convex structures formed by a flexible material are likely to deform under a pressure effect, resistance changes, adjustment and control caused by contact area changes when the two conductive layers in the opposite electrode structures make contact can be realized, and thus, pressure sensing is realized. The invention also discloses a method of manufacturing the above flexible pressure sensor. Compared with an MEMS processing process generally adopted by the flexible pressure sensor in the prior art, the manufacturing method of the invention is simple and convenient, and the cost is lower.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Flexible display panel, display device and forming method of flexible display panel

The invention relates to the technical field of display, in particular to a flexible display panel, a display device and a forming method of the flexible display panel. The flexible display panel comprises a flexible substrate, the flexible substrate is provided with a display area and a non-display area, and the non-display area is provided with a bending part; the bending part comprises a signal transmission line layer, a first covering layer and a second covering layer, the signal transmission line layer and the first covering layer are arranged in a laminated mode, and one or more grooves are formed in at least the side, away from the signal transmission line layer, of the first covering layer; the second covering layer covers the side, away from the signal transmission line layer, of the first covering layer, and the grooves are filled with the second covering layer. According to the flexible display panel, two adjacent boundary layers form a concave-convex structure, accordingly, the contact area between the first covering layer and the second covering layer is increased, the attachment force between the first covering layer and the second covering layer is improved, and accordingly the reliability of the display panel is improved.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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