100results about How to "Improve water and oxygen resistance" patented technology

The invention discloses an OLED and display equipment. According to the OLED, an optical thin film laminate serves as a substrate or packaging cover plate of the OLED, wherein the optical thin film laminate comprises a circular polarizer film, a water and oxygen resistance film and a color resistance film, and the circular polarizer film, the water and oxygen resistance film and the color resistance film are located on a supporting substrate. In this way, the OLED has an anti-reflection function, good water and oxygen resistance performance and a full-color display function, and the problems that processes are tedious and cost is increased due to film pasting of the OLED are solved; in addition, the problem that curling is difficult to carry out because a flexible OLED is thickened due to film pasting is also avoided; meanwhile, the OLED has the advantages of being lighter, thinner, better in display effect and the like.

The invention discloses an organic electroluminescence display, an optical thin film stacking body of the organic electroluminescence display and a preparing method of the optical thin film stacking body. The optical thin film stacking body comprises a circular polaroid film layer, a protection film layer located on the incident side of the circular polaroid film layer, a binding layer located on the light-emitting side of the circular polaroid film layer and a water blocking oxygen film layer. The water blocking oxygen film layer is located between the light-emitting side of the circular polaroid film layer and the binding layer, and/or located between the incident side of the circular polaroid film layer and the protection film layer. Due to the fact that the optical thin film stacking body comprises the circular polaroid film layer and the water blocking oxygen film layer, the optical thin film stacking body has the anti-reflection function and the good water blocking oxygen property. When the optical thin film stacking body with the double functions is applied to the OLED, the problems, caused by secondary pasting, of the complex technological process, high cost and soft OLED crimping difficulty and the like are solved, and meanwhile the OLED can have the advantages of being lighter, thinner, better in displaying effect and the like.

The invention discloses a preparation method for a lead halide caesium perovskite quantum dot colloid and a quantum dot fluorescent powder. The preparation method for the quantum dot colloid comprisesthe following steps: mixing cesium carbonate, oleic acid and octadecene at ratio, thereby acquiring a cesium oleate solution; mixing lead halide, oleic acid and octadecene at ratio, thereby acquiringa solution; adding 3-aminopropyl triethoxysilane into the solution and grafting, thereby acquiring a lead halide precursor; injecting the cesium oleate solution into a container containing the lead halide precursor and centrifuging, thereby acquiring a crude quantum dot; hydrolyzing the crude quantum dot for a preset period of time and then centrifuging, thereby acquiring an organic silicon coated quantum dot; washing with cyclohexane and then dissolving in a methylbenzene solution, thereby acquiring an organic silicon coated quantum dot colloid; mixing the organic silicon coated quantum dotcolloid with ethyecellulose at ratio according to the use requirement, thereby acquiring the lead halide caesium perovskite quantum dot colloid. 3-aminopropyl triethoxysilane and ethyecellulose double-layer chemical bonding coating is adopted, so that the lead halide caesium perovskite quantum dot colloid with high stability is acquired.

The invention provides an organic light-emitting display panel and a display device. The organic light-emitting display panel comprises a substrate, an organic light-emitting structure layer, a thin film packaging layer, at least one retaining wall and at least one protective device, wherein the substrate comprises a display area, a non-display area, at least one special-shaped edge located in thenon-display area and at least one special-shaped area corresponding to the at least one special-shaped edge; the special-shaped area is an area in the non-display area adjacent to the special-shapededge on the substrate; the organic light-emitting structure layer is located on one side of the substrate and located in the display area; the thin film packaging layer is located on one side, far away from the substrate, of the organic light-emitting structure layer; the thin-film packaging layer comprises at least one inorganic layer; the inorganic layers in the thin film packaging layer cover the organic light-emitting structure layer in the display area and extend to cover part of the substrate in the non-display area; the at least one retaining wall is located in the non-display area; theinorganic layers cover the at least one retaining wall; and the at least one protective device is located in the special-shaped area and is located on one side, far away from the display area, of theat least one retaining wall. The water and oxygen resistance of the thin film packaging layer can be improved, so that the occurrence of package failure can be prevented.

The invention provides a hafnium silicate environment barrier coating for a ceramic-based composite material matrix and a preparation method thereof. The preparation method comprises the following steps: (1) mixing HfO2 and SiO2, carrying out wet mixing and ball milling on a ball mill, drying, grinding, sieving, sintering, and carrying out a high-temperature solid-phase reaction; (2) after the high-temperature solid-phase reaction is finished, adding deionized water for slurry preparation, then performing ball milling, and performing spray granulation to obtain an HfSiO4 powder material; (3) firstly spraying a Si layer on the surface of a ceramic-based composite matrix as a priming coat, and then spraying the HfSiO4 powder material on the surface of the priming coat as a surface layer to form a multi-layer coating; and (4) carrying out a heat treatment on the multi-layer coating to obtain the environmental barrier coating. Due to the added heat treatment, the crystallinity of the HfSiO4 surface layer is improved, the binding force of each layer of the coating is better, the stability is higher, and the water and oxygen resistance of the environment barrier coating is greatly improved. The provided preparation method is simple and easy to control, and is easy for industrial production and application.

The invention discloses a solar cell packaging film. The solar cell packaging film comprises a transparent support wear-resistant filtering layer and a gas barrier layer. The optical transmittance of the packaging film is 80%-95%. The transmittance of the packaging film over solar light with the wavelength of 380-1200 nm is 90%-95%, the transmittance over the solar light with the wavelength of 1400-2500 nm is 30%-80%, and the water vapor transmittance is 1*10<-4>-1*10<-1> g/m2*day. According to the invention, the solar cell packaging film is simple in structure and convenient to produce and machine; the surface density is low, installation and transportation are facilitated; the water air barrier property and the weather fastness are good, and the lifetime requirement of more than 25 years is met for a solar cell; in addition, the solar cell packaging film is also provided with a wear-resistant function and an optical filtering function, so that the practical power generation capability of a packaged cell assembly is further improved.

An embodiment of the invention provides a display panel and a display device, and relates to the technical field of display. The distance between an organic isolation layer and the edge of a thin filmpackaging layer is increased, and the water oxidation resistance of the display panel is improved. The display panel comprises a display area and a non-display area; a light-emitting element comprising an anode layer, a light-emitting layer and a cathode layer; a driving circuit located in the non-display area; a negative power signal line located between the driving circuit and the display area;a signal transmission line located between the driving circuit and the display area, wherein the signal transmission line is electrically connected to the negative power signal line and the cathode layer respectively; the organic isolation layer covering the area of the signal transmission line not in contact with the cathode layer; the thin film packaging layer covering the display area and thenon-display area.

The invention relates to a coating type multilayer composite high-barrier film, a preparation method and application thereof, wherein the coating type multilayer composite high-barrier film is formedby compounding multilayer polymers through a coating composite molding method; the structural expression is A/(adh/C)n/B/(adh/C)n/adh/A; in the formula, n is an integer greater than 0, the A represents a surface layer, the B represents a barrier layer, the adh represents an adhesive layer, and the C represents an additional layer. The barrier layer B is a PVA-EVOH composition which is prepared from the following raw materials in parts by weight: 40 to 80 parts of PVA, 15 to 30 parts of EVOH, 5 to 30 parts of plasticizer, 0.5 to 10 parts of heat stabilizer and 0.1 to 2 parts of metal salt; andthe surface layers A and C are thermoplastic high-molecular polymers. The film disclosed by the invention has excellent strength and oxygen-blocking and water-blocking properties, and can be applied to the field of packaging of various foods, medicines and the like.

The invention discloses a preparation method of a fluorine-containing polyvinylidene chloride emulsion for a coating. The preparation method comprises the following steps of (1) preparing for reaction raw materials for later use; (2) preparing a seed emulsion; (3) preparing a vinylidene chloride copolymer solution; and (4) preparing the fluorine-containing polyvinylidene chloride emulsion to obtain the fluorine-containing polyvinylidene chloride emulsion for the coating. The preparation method has the characteristics of simple process, easily-controlled reaction condition, good emulsion stability, environment friendliness and the like; and the obtained fluorine-containing polyvinylidene chloride emulsion has the advantages of good adhesive force, good oxygen and water resistance, good chemical stability and good stain resistance and is particularly suitable for outdoor high-grade building exterior wall coatings, wood coatings and the like with relatively high requirements for water resistance and weather resistance.

The invention relates to a touch control type organic light-emitting display panel. A dielectric layer with a specific Bragg reflector layer structure is disposed between a polaroid and an organic light-emitting diode device or between the polaroid and a touch control panel. In this way, 438nm blue light that is harmful to the eyes of people can be greatly reduced, and an eye protection purpose is achieved. Meanwhile, the inventor accidentally finds that the Bragg reflector layer structure plays a micro-cavity control effect, and can correspond to an organic optical micro-cavity in the device to form a resonator effect, so the spectrum of the display panel is controlled, and the purity is improved. Moreover, in terms of the outer dielectric layer attached to the device, different Bragg reflector layer structures can be designed on the basis of different devices and different demands, and thus a better eye protection effect is achieved. Furthermore, the Bragg reflector layer of the dielectric layer helps to improve the performance of water-resisting oxygen and improve the packaging effect.

The invention discloses a degradable substrate for a flexible photoelectric device and a production method of the substrate. The substrate comprises a flexible substrate and a conductive layer, wherein the conductive layer is located on the flexible substrate, and the flexible substrate is shellac doped with ultraviolet-sensitive adhesive; the ultraviolet-sensitive adhesive comprises photosensitive polysiloxane, photoinitiator, thinner and promoter; the thinner comprises methylbenzene, xylene, active epoxy resin thinner, cyclic ether and vinyl ether monomer; the promoter comprises filler, stabilizer and cross-linking agent. The degradable substrate has the advantages that the light transmittance of the flexible substrate is increased by the cross-linking effect of the ultraviolet-sensitive adhesive, the toughness of the flexible substrate is increased, and the combining force of the conductive layer and the flexible substrate is strong at the same time; in addition, the substrate is biodegradable and is widely applicable to the field of flexible photoelectric devices.

The invention relates to a flexible touch screen base material and a preparation method thereof. The flexible touch screen base material is characterized in that the flexible touch screen base material includes a nano material with a weight percentage being 0.1-80 wt% and a base material main body material; the base material main body material is one selected from transparency PI, acrylic materials or epoxy resin; and the nano material is one selected from nanometer silicon nitride, nanometer SiO2, nanometer Al2O3, nanometer aluminium nitride, nanometer TiO2, nanometer ZrO2, nanometer MgO, ornanometer HfO2. The invention also relates to a preparation method of the flexible touch screen base material and a display panel containing the flexible touch screen base material. Compared to the prior art, the flexible touch screen base material of the invention has performance of thin thickness, high hardness, friction resistance, and being soft and bendable.

The present invention provides an OLED display panel and a manufacturing method thereof. The OLED display panel includes a substrate including a display area, and a non-display area located outside the display area; an OLED layer disposed in the display area of the substrate; a packaging portion disposed above the OLED layer and including an organic layer and at least one retaining wall disposed around the organic layer. The organic layer is located within the enclosure space of the retaining wall. By disposing the retaining wall for stopping the overflow of an organic solution above the substrate, the precision of the OLED display panel is improved, the water oxidation resistance of the OLED display panel is improved, and the quality of the OLED display panel is improved.

The invention discloses a flexible substrate and a fabrication method thereof, and a display panel. The flexible substrate comprises a first flexible layer comprising a bending area and a display area, a metal oxidation layer arranged on the display area of the first flexible layer, and a first metal layer arranged on the bending area of the first flexible layer, and the surface of the first metallayer is oxidized as the metal oxidation layer so that the flexible substrate has excellent water-oxygen blocking capability and bending resistance.

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a flexible substrate and a thin film transistor array layer, wherein the thin film transistor array layer is located at one side of the flexible substrate; w the thin film transistor array layer comprises an active layer, a gate insulating layer, a gate metal layer, an interlayer insulatinglayer and a source-drain metal layer; the flexible substrate comprises a first inorganic layer, a first buffer layer and a first organic layer; the first inorganic layer contacts with the active layer, the first buffer layer contacts with the first inorganic layer and is located at one side of the first inorganic layer away from the active layer, and the first organic layer contacts with the firstbuffer layer and is located at one side of the first buffer layer away from the first inorganic layer. Therefore, the problems of display panel film stripping and display ghosting are solved.