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248results about How to "Improve encapsulation" patented technology

Display device and display substrate thereof

The invention provides a display device and a display substrate thereof. The display substrate comprises a display area, a porose area, and a partition area between the display area and the porose area. The partition area is provided with at least one partition ring surrounding the porose area, and is used for partitioning an organic light-emitting material layer. The partition ring comprises at least a support portion and a partition portion. The partition portion is provided with a tensile stress layer used for applying tensile stress to the partition portion. When the organic light-emittingmaterial layer is vapor-deposited, partial section of the partition portion in the partition ring is suspended. The partitioning effect on the organic light-emitting material layer is good, and external water and oxygen can be prevented from entering the display area from the opening. In addition, the partition portion can automatically block the organic light-emitting material layer. The use oflaser burning to remove the organic light-emitting material layer around the porose area is avoided. A hot process is omitted. The spacing between the porose area and the display area is shortened. The border of the porose area is reduced. Third, the tensile stress layer can apply tensile stress to the partition portion to prevent the suspended partition portion from collapsing and falling off. The partitioning performance of the partition portion is reliable.
Owner:YUNGU GUAN TECH CO LTD

PCL-b-PEG-b-PCL carried hydrophobic medicine polymer vesica as well as preparation method and application thereof

The invention discloses a PCL-b-PEG-b-PCL carried hydrophobic medicine polymer vesica as well as a preparation method and application thereof. The polymer vesica is manufactured by the following steps of: (1) dissolving amphipathy triblock copolymer and hydrophobic medicine in organic solvent, evaporating to remove the organic solvent to prepare film, blowing and drying; and (2) adding double distilled water and the product in the step (1) in a container, hydrating, evenly mixing through oscillation, performing ultrasonic to form stable emulsion, collecting filtrate and freezing after filtering the film. The vesica has the main advantages of particle medicine carrying systems such as liposome and nanometer; the stability inside and outside the polymer vesica is remarkably superior to the liposome; the film layer is thicker and is beneficial to packaging hydrophobicity medicine; in the preparation process, emulsifier or surface active agent is not needed, thereby overcoming the defect that the a great amount of emulsifier or surface active agent is needed for traditionally preparing a medicine release system and avoiding toxic side effect to the organism caused by using reagent.
Owner:INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI

Thixotropic epoxy resin, preparation method and application thereof in LED chip packaging

The invention discloses thixotropic epoxy resin, a preparation method and application thereof in LED chip packaging. The preparation method consists of: (1) weighing bisphenol A epoxy resin, aliphatic epoxy resin, a thixotropic agent fumed silica, an adhesive force promoter, an antioxidant, an ultraviolet absorbent and a defoaming agent, and mixing them evenly to obtain a mixture 1; (2) weighing anhydride, diol, hydroxyl-terminated polybutadiene, and 2, 6-di-tert-butyl-4-methylphenol to carry out reaction to obtain a mixture 2; and (3) mixing the mixture 1 with the mixture 2, adding a phosphine-containing catalyst, and stirring the substances evenly at room temperature, thus obtaining the thixotropic epoxy resin. The method provided by the invention is simple, the technological parameters are easily controllable, and the preparation process does not involve solvent, and is green and environment-friendly. The obtained thixotropic epoxy resin has long storage life and good packaging effect. The thixotropic epoxy resin can be applied in chip packaging, and is especially suitable for chip packaging on a planar substrate, the glue mixing and dispensing process in original technology can be avoided, the production efficiency is high, the rate of finished products is high, and the cost is low.
Owner:TECORE SYNCHEM OPTOELECTRONIC TECH (TIANJIN) CO LTD

Tramadol multivesicular liposome and preparation method thereof

The invention discloses a tramadol multivesicular liposome and a preparation method thereof. The preparation method comprises the following steps of: 1, dissolving phospholipids, cholesterol and neutral lipids into organic solvents to obtain a mixture which serves as an organic phase; 2, preparing 10 to 500mmol/L tramadol solution which serves as an internal water phase; 3, adding the internal water phase with the same volume as that of an organic phase into the organic phase, and mixing and emulsifying the mixture to obtain water-in-oil primary emulsion; 4, preparing an external water phase containing amino acid and osmotic modulators and/or surfactants, and adding the external water phase of which the volume is 2 to 10 times that of the water-in-oil primary emulsion into the water-in-oil primary emulsion, stirring the mixture to form oil-in-water type double emulsion; 5, adding the emulsion into the solution of the amino acid, introducing nitrogen or carbon dioxide into the mixed solution to remove the organic solvent from the emulsion to obtain suspension; 6, dissolving the suspension into the solution of amino acid, centrifuging and taking lower liposome suspension to obtain the tramadol multivesicular liposome. The prepared tramadol multivesicular liposome has the advantages of higher encapsulation efficiency, good slow release effect, and longer analgesic effect.
Owner:NANJING HAILING TRADITIONAL CHINESE MEDICINE RES CO LTD +2

Machining and packing mechanism facilitating polishing

The invention discloses a machining and packing mechanism facilitating polishing. The machining and packing mechanism facilitating polishing comprises a working table, wherein a bottom rack is fixedlymounted at the lower end of the working table; the right side of the upper surface of the working table is fixedly connected with a first supporting rack in a welded manner; a cutting plate is movably connected between a telescopic rod and the inner side of the lower end of the telescopic rod; a second supporting rack is arranged on the left side of the first supporting rack; movable plates are separately movably connected to the front side and the rear side of the inside of the second supporting rack; a driving plate is connected between the movable plates in an engaged manner; the upper surface of each movable plate is fixedly connected with a limiting block; a fixed plate is fixedly mounted in the middle of the working table in a connected manner; the right side of a conveying roll iscoaxially connected with a first gear plate. According to the machining and packing mechanism facilitating polishing, a polishing device can polish several surfaces of a product simultaneously, manualsealing or packing is not required, the packing effect is good, and the machining and packing mechanism facilitating polishing is provided with a device which automatically transfers the product froma conveying device.
Owner:ZHEJIANG DONGXIN MASCH CO LTD

Organic electroluminescent device and method for producing same

The invention provides an organic electroluminescent device comprising an anode conductive substrate, a functional layer, a luminescent layer, a cathode layer, a protective layer, and an encapsulating layer. The encapsulating layer comprises an insulating layer, metallic layers, and plate glass. The insulating layer is arranged in a surrounding manner along the edge of the top surface of the anode conductive substrate. A groove is surrounded by the insulating layer surrounding structure. The functional layer, the luminescent layer, the cathode layer, and the protective layer are successively extended from the top surface of the anode conductive substrate to the groove. The metallic layers are disposed on the top surface of the insulating layer and a gap is arranged between the metallic layers and the functional layer, the luminescent layer, the cathode layer, and the protective layer. The sum of heights of the insulating layer and the metallic layers is more than that of the functional layer, the luminescent layer, the cathode layer, and the protective layer. The plate glass is disposed on the top surfaces of the metallic layers. The invention also provides a method for producing the organic electroluminescent device. The method effectively reduces erosion, caused by moisture and oxygen, on the device, and substantially prolongs the service life of the device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2
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