322results about How to "Guaranteed light transmittance" patented technology

The invention discloses a packaging method of an LED filament. The packaging method of the LED filament includes the steps that a liquid silicon resin and fluorescent powder mixture is injected into a mould, and a metal conductive pin is arranged at one end of the silicon resin and fluorescent powder mixture inside the mould; the mould is removed after being heated and solidified, and silicon resin and fluorescent powder colloid with the metal conductive pin at one end is obtained; a plurality of LED chips are installed on the silicon resin and fluorescent powder colloid, and the LED chips are mutually connected through a wire and then connected to the metal conductive pin to form a conductive path; the silicon resin and fluorescent powder colloid with the LED chips is put into the mould, and a liquid silicon resin and fluorescent powder mixture is injected into the mould to cover the LED chips and the wire; the mould is removed after being heated and solidified, and the packaged LED filament finished product with a supporting frame is obtained. The LED filament is packaged without the supporting frame, and the quality problems of low yield, low light transmittance of the supporting frame and the like are resolved.

The invention discloses an optical diffusion barrier with covering power and light transmittance compatibility, comprising a transparent PET base material, a diffusion layer coating the upper surface of the base material, and a back coating layer coating the lower surface of the base material. The diffusion particle of the diffusion layer comprises composite particle size organic particles composed of large particle size organic particles with a particle size range of 10-20 mu m, middle particle size organic particles with a particle size range of 5-8 mu m, and small particle size organic particles with a particle size range of 1-3 mu m, and small particle size inorganic particles with a particle size range of 20-500 nm. The arrangement format, particle size and mass percent of organic particles in the diffusion layer and the thickness of the diffusion layer are controlled, thereby realizing the covering power and light transmittance compatibility of the diffusion barrier; in addition, anti-adhesion inorganic particles are arranged in the back coating layer, so as to enhance scraping resistance performance, and to allow the diffusion barrier to possess better antistatic and anti-adhesion performance. The invention also discloses a preparation method of the optical diffusion barrier with covering power and light transmittance compatibility, which meets market demands, possesses simple processes and is easy to operate.

The application discloses an array substrate, a display panel and a display device; the array substrate comprises a fan-out wire walking and distributing structure; the fan-out wire walking and distributing structure comprises a first fan-out walking wire and a second fan-out walking wire; the first fan-out walking wire and the second fan-out walking wire are insulated to each other; the fan-out wire walking and distributing structure at least comprises a front end wire distribution zone, a middle gluing zone and a back end wire distribution zone; the front projections of the parts where the first fan-out walking wire and the second fan-out walking wire are located at the front end wire distribution zone on the plane of the array substrate are not overlapped to each other; the front projections of the parts where the first fan-out walking wire and the second fan-out walking wire are located at the middle gluing zone on the plane of the array substrate are overlapped to each other; the front projections of the parts where the first fan-out walking wire and the second fan-out walking wire are located at the back end wire distribution zone on the plane of the array substrate are not overlapped; the middle gluing zone is used for coating the first sealing glue layer on the array substrate. The manner can guarantee the light transmittance of the gluing zone, so that the sealing glue can be fully cured to avoid liquid crystal leakage.

The invention discloses an electromagnetic shielding light window of a double-layer interlaced multi-cycle metal ring embedded array and belongs to the technical field of electromagnetic shielding. The electromagnetic shielding light window is formed by arranging two layers of metal grids in a rotating and interlaced mode and loading the two layers of metal grids on the two sides of a light window transparent substrate or a substratum. Each layer of metal grid is formed by densely arranging and connecting a set of concentric metal rings and another metal ring with the different diameter in an equilateral triangle mode, and the metal grids are distributed and loaded on the surface of the light window transparent substrate or the substratum in a crossed mode. The adjacent rings with the same diameter are communicated in an external tangent mode. The concentric rings are aligned with the external rings to serve as basic rings which are internally provided with metal sub rings communicated with the concentric rings in an internal tangent mode. Lines are overlapped at the joints where the rings are communicated in a tangent mode or metal which ensures reliable electric connection between the points of tangency of the metal rings is arranged at the joints where the rings are communicated, and therefore it is ensured that all the rings are mutually conducted. Through selection of interlaced angles of the double layers of grids, the structure of the metal grids of the electromagnetic shielding light window can effectively reduce non-uniformity of high-level diffraction light intensity distribution of the grids, and therefore stray light generated by diffraction can be distributed more evenly, and influences on imaging are less.

The invention relates to a conductive screening material, in particular to a conductive low-smoke zero-halogen flame retarding and oil resisting cable sheath material and a preparation method thereof. The conductive screening material comprises the following basic components: 100 parts of ethylene-vinyl acetate rubber, 50-100 parts of magnesium hydroxide, 50-80 parts of conductive black, 10-30 parts of graphite powder, 5-10 parts of zinc borate, 10-25 parts of plasticizer, 2-5 parts of lubricant, 1-2 parts of antiager, 10-30 parts of flame retarding synergist, 2-3 parts of vulcanizer and 1-2 parts of vulcanization assistant. The preparation method comprises the four steps of material preparation, mixing, extrusion and tabletting. The conductive low-smoke zero-halogen flame retarding and oil resisting cable sheath material has the advantages of high conductivity, good oil resistivity, excellent flame retarding effect, no peculiar smell, easy stripping and high heat resistance level, and can pass the environment protection authentication of RoHS (Restriction of the use of certain Hazardous Substances Registration), REACH (Evaluation, Authorization and Restriction of Chemicals) and the like.

The invention discloses a display panel and a display device, which relate to the technical field of display. The display panel comprises a hollow part, a first non-display area, a display area and asecond non-display area; the display panel further comprises oppositely arranged color film substrate and array substrate, and a liquid crystal, wherein the array substrate comprises a first substrate, and a driving circuit layer located at one side, close to the color film substrate, of the first substrate; the color film substrate comprises a second substrate, and a black matrix and a color resistance layer both located at one side, close to the array substrate, of the second substrate; orthographic projection of the driving circuit layer and the color resistance layer is not overlapped withthe hollow part, and the hollow part comprises at least one first support column located between the first substrate and the second substrate; the display panel further comprises an upper polarizer and a lower polarizer, wherein the upper polarizer comprises a first through hole which penetrates through the upper polarizer along a thickness direction of the upper polarizer and is corresponding tothe hollow part, and the lower polarizer comprises a second through hole which penetrates through the lower polarizer along the thickness direction of the lower polarizer and is corresponding to thehollow part. Thus, realizing a light-transmitting function at a corresponding position of the hollow part is facilitated.

The invention discloses a double-layer touch screen, which comprises transparent cover plate glass, a first transparent impressing adhesive layer, a first conductive layer, a second transparent impressing adhesive layer, a second conductive layer and an anti-reflection layer, wherein the first conductive layer is embedded in the first transparent impressing adhesive layer, and comprises a plurality of first bus-bars, and the first bus-bars extend along a first direction, and are formed by intersecting conductive silk threads; and the second conductive layer is embedded in the first transparent impressing adhesive layer, and comprises a plurality of second bus-bars, and the second bus-bars extend along a second direction, and are formed by intersecting conductive silk threads. Compared with the conventional touch screen, the double-layer touch screen has the advantages that indium tin oxide (ITO) is replaced by the first and second conductive layers formed by a conductive material filled in a first groove and a second groove, an additional etching technology is not required by such a process, the light transmittance and the electrical conductivity are ensured, and meanwhile, the material cost is lower, so that the cost can be lowered. The invention also discloses a preparation method for the double-layer touch screen.

The invention provides a double-glass enclosure system with cooling and shading functions and belongs to the technical field of energy conservation of buildings. The double-glass enclosure system is provided with an inner glass curtain wall and an outer glass curtain wall. An air cavity is formed between the inner glass curtain wall and the outer glass curtain wall. The double-glass enclosure system further comprises multiple cooling water pipes, a cold source, a water pump, a cooling water inlet and a cooling water outlet. The cooling water pipes are arranged in the air cavity in parallel. Each cooling water pipe is provided with a shading blade. The cooling water pipes are connected with the cold source through the cooling water inlet and the cooling water outlet. The water pump is arranged on a pipeline which is located between the cold source and the cooling water outlet or between the cold source and the cooling water inlet. The light transmittance can be flexibly adjusted through a shading blade adjusting mechanism. The cooling water pipes are horizontally or vertically arranged and connected in series or in parallel. By the adoption of the double-glass enclosure system with the cooling and shading functions, heat being conducted to a house through the double-glass enclosure system can be directly eliminated through high-temperature cooling water, and therefore the cooling load of an air conditioner is greatly reduced; the double-glass enclosure system with the cooling and shading functions is simple, easy to use and suitable for popularization.

The invention discloses a house ridge type glass greenhouse roof cleaning device, which is characterized in that the house ridge type glass greenhouse roof cleaning device walks on a house ridge type glass greenhouse roof and comprises main suspension girders placed at the two sides of the greenhouse roof, wherein the two main suspension girders are connected through a hinge, the front side and the back side of the main suspension girder arranged at each side are respectively provided with a hair brush roller, the hair brush rollers are driven to rotate by a motor, and the whole device is driven to advance and retreat; one row of circular disc brush is arranged right under the main suspension girders, i.e., between the two hair brush rollers and is driven to rotate through the motor; a water spraying pipe with a spray head is respectively arranged above each hair brush roller, realizes the wetting and cleaning effects, and is connected with a water supply pipe. The house ridge type glass greenhouse roof cleaning device can work together with water supply, power supply and moving mechanisms on the ground, and can also work through carrying a water supply tank and a power supply storage battery by the self, attached substances such as dust and green moss on the house ridge type glass greenhouse roof can be cleaned at high efficiency, the light transmission rate and the use quality of the greenhouse can be guaranteed, and the problems of difficulty, unsafety and the like of the manual cleaning of the glass greenhouse roof are solved.

The invention discloses a method for preparing organosilicone hybrid resin and a power type encapsulating material for light-emitting diodes (LED) thereof and application. According to the method, the organosilicone hybrid resin containing three functional groups of an epoxy group, a fluorin group and a phenyl group is prepared by a cohydrolysis condensation method, and the content of each group in the resin is optimized by controlling the ratios of fluoro alkyl silicane, epoxy alkyl silicane and phenyl silicane, so that the resin is applied to the power type encapsulating material for the LEDs. The prepared encapsulating material has the advantages of epoxy resin and organosilicone, has high performance of high light transmittance and refractive index, low hygroscopicity, high mechanical property and ageing-resistant performance and the like, and the problems of low light output rate, short service life and the like of the LEDs due to dropping caused by low bonding strength and poor mechanical property of the ordinary organosilicone material for encapsulating LEDs are solved. The method for preparing the organosilicone hybrid resin and the power type encapsulating material for the LEDs is simple, and raw materials are readily available and environment-friendly; and the organosilicone hybrid resin can also be used as the raw materials to be applied to processing and preparation of optical lens materials, photovoltaic conversion materials, integrated circuit encapsulating materials, insulating materials, coating materials, adhesives and the like.

The invention relates to a hierarchical structure gaphene-based tensile tansparent conductive elastomer preparation method. The method comprises steps: after being stretched, the polymer elastomer is applied to an opening outer edge of an open container to form closed space, the container is heated, and the polymer elastomer is expanded; a reduced graphene oxide solution coats the expanded elastomer surface, cooling to room temperature is carried out, after restoring the initial morphology, the polymer elastomer is taken down, and thus, the hierarchical structure gaphene-based tensile tansparent conductive elastomer is obtained. The method of the invention is simple, the reaction condition is mild, no special equipment requirements is required, and mass production is facilitated; and the prepared hierarchical structure gaphene-based tensile transparent conductive elastomer presents excellent tensile performance while high transmittance and high conductivity are ensured, and experiments prove that the conductivity can still be smaller than 500 omega per square while the tensile ratio is larger than 400%.

The invention discloses a novel ocean energy self-cleaning type power generating buoy. A wind-photovoltaic integrated generating assembly is mounted at the upper end of a buoy lamp by a base. A cabinbody is connected to the lower end of the buoy lamp. The wind-photovoltaic integrated generating assembly comprises a wind generator set and a modularization photovoltaic generator set. The modularization photovoltaic generator set is divided into three areas. Rotor blades of the wind generator set are mounted on the upper surface of a photovoltaic generating panel of the photovoltaic generator set. A dedusting device is mounted in each rotor blade. The dedusting devices face the generating panel of the photovoltaic generator set. The wind generator set and the photovoltaic generator set respectively convert wind energy and solar energy into electric energy to power the buoy together. A tension leg mooring system with double-permeable pendant plates fixes the buoy to seawater. The day andnight alternation working mode is adopted, the rotor blades with dedusting brushes of the wind generator clean the photovoltaic generating panel during rotating, and therefore light transmittance of the photovoltaic generating panel is guaranteed. The tension leg mooring system with the double-permeable pendant plates guarantees that the buoy can work stably in the severe environment.

The invention provides a display device. The display device comprises a display unit and a driving module used for driving the display unit to display. The display unit comprises a main display area and at least one display light-transmitting area, a plurality of first sub-pixels are arranged in the main display area, and a plurality of second sub-pixels are arranged in the display light-transmitting area; each second sub-pixel comprises at least one micro light emitting diode. The micro light emitting diodes are arranged in the display light-transmitting area for transparent display, so thatthe light transmittance of the display light-transmitting area is ensured, influence on lighting of functional devices such as a camera is prevented, and the display light-transmitting area can also be used for displaying pictures, so that the display unit realizes full-screen display, and the user experience is improved.

The invention discloses a double-layer touch screen which includes transparent cover plate glass, a first transparent imprint adhesive layer, a first conducting layer, a second transparent imprint layer and a second conducting layer, wherein the first conducting layer is arranged inside the first transparent imprint adhesive layer through insertion and comprises a plurality of conducting bars extending in a first direction, every conducting bar is formed by intersecting conducting filaments, the second conducting layer is arranged inside the second transparent imprint layer through insertion, the second conducting layer includes a plurality of conducting bars extending in a second direction, and every conducting bar is formed by intersecting conducting filaments. Compare with a traditional touch screen, the double-layer touch screen replaces ITO (Indium Tin Oxide) with the first conducting layer and the second conducting layer which are formed by conducting materials filled in a first groove and a second groove, the process does not need extra etching techniques and has relatively low material cost under the premise of guaranteeing the light transmittance and the electrical conductivity, so that the cost is reduced. The invention also discloses a manufacturing method of the double-layer touch screen.

The invention belongs to the field of light emitting semiconductor packaging, and discloses a high performance organosilicon epoxy material, a preparation method and applications thereof. According to the present invention, a vinyl epoxy monomer and methylhydrosiloxane are subjected to a catalysis reaction for 2-24 h, an end capping agent and a catalyst are added to continuously carry out the reaction to obtain end capped epoxy cyclosiloxane, 0.1-5.0 parts of a cyclosiloxane ring opening agent, 0.01-80 parts of an epoxy curing agent and 0.01-5.0 parts of a curing catalyst are added to 100 parts of the end capped epoxy cyclosiloxane in batches, stirring is performed for 0.5-12.0 h under a nitrogen condition during the addition, an auxiliary agent is added, stirring is continuously performed for 0.5-3.0 h, and curing is performed to obtain the organosilicon epoxy material; and the material has characteristics of the epoxy resin and the organosilicon material, further has characteristics of excellent light transmittance, excellent adhesion, excellent mechanical strength, excellent heat resistance and excellent UV performance, and can be adopted as a LED packaging material, an optical lens material, a photoelectric conversion material, an integrated circuit packaging material, an insulation material, a coating material and an adhesive.

The invention discloses photodiffusion particles. The photodiffusion particles comprise, in parts by weight, 100 parts of organic trialkoxysilane monomers and 1-10 parts of inorganic particles. A preparation method of the photodiffusion particles comprises steps as follows: the inorganic particles are dispersed in an aqueous solution containing a dispersant and stirred for 20-40 min by a stirrer, the pH value is adjusted to 4.5-5.0, the organic trialkoxysilane monomers are added, the mixture is mixed, hydrolysate is obtained and continuously stirred for 20-40 min by the stirrer, the pH value of the hydrolysate is adjusted to 8.5-9.0, the hydrolysate reacts for 3-5 h and then is filtered, cleaned and dried, and the photodiffusion particles are obtained. According to the prepared photodiffusion particles, inorganic particles in small sizes are wrapped with organosilicon photodiffusion particles in large sizes, so that light rays can produce reflection on the surfaces of the inorganic particles to a certain extent when passing through the organosilicon photodiffusion particles, the light rays are scattered in a wider range, and the shielding effect and the haze of the material are improved while the light transmittance of the thermoplastic photodiffusion material comprising the photodiffusion particles is guaranteed.

The invention relates to a solar photoelectric conversion coating for a building and a fabrication for the solar photoelectric conversion coating. The photoelectric conversion coating is provided with four layers and two extraction electrodes, wherein four layers comprises: I, a reflection (or diffuse-reflection) insulation coating based on an outer wall of the building; II, a coating layer containing an N-type semiconductor on the I; III, a coating layer containing a P-type semiconductor on the II; and IV, a self-cleaning coating layer on the III. The two extraction electrodes are respectively arranged between the I and the II and between the III and the IV, the N-type semiconductor and the P-type semiconductor are grinded and prepared into the II (an N-type coating) and the III (a P-type coating) with a synthetic resin and an additive, all coatings are sequentially coated with an object substrate, a p-n junction is formed on the interfaces of the coating II and the coating III, under the irradiation of sun light, the p-n junction can generate a photoproduction electromotive force, and with the adoption of the extraction electrodes, electric energy can be provided to a load when an external circuit is energized.

Provides are a transparent display device and an electronic device applying the transparent display device. The transparent display device comprises a liquid crystal display panel and a polarization light source, the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer clamped between the first substrate and the second substrate, and the polarization light source is located at the rear of the liquid crystal display panel. When the liquid crystal display panel displays images, polarized light emitted by the polarization light source passes through the liquid crystal layer and then passes through an upper polaroid. Compared with the prior art, the transparent display device and the electronic device applying the transparent display device have the advantages of being low in cost, simple in process and high in color gamut.

The invention discloses a photodiffusion polycarbonate composite material and a manufacture method of a photodiffusion light guide plate for building materials. The composite material is composed of the following components: 85-95% of polycarbonate resin, 0.5-0.8% of photodiffusion agent, 0.2-3% of silicone master batch, 0.3-3% of light stabilizer, 0.1-1% of heat stabilizer and 0.1-1% of processing aid. The manufacture method comprises the steps of: (1) preparing the photodiffusion polycarbonate composite material; (2) manufacturing into a light guide plate mold according to component drawings; and (3) carrying out one-time extrusion shaping on the photodiffusion polycarbonate composite material in a universal extruder by virtue of the light guide plate mold to obtain the component; assembling, testing and packaging to obtain a finished product. The invention has the advantages that: by the addition of the photodiffusion agent, the haze of the light guide plate is increased, the transmittance is maintained, the lighting property is maintained and the injury of strong light to eyes is avoided; by the addition of the composite light stabilizer, the service life of the light guide plate is prolonged; and by the addition of the silicone master batch, the melt flowability and demolding property are improved and the shaping and processing performances of the light guide plate are improved.

The invention discloses weather-resistant and flame-resistant light-diffusion PC applicable to outdoor lampshades and a preparation method of the weather-resistant and flame-resistant light-diffusion PC. The weather-resistant and flame-resistant light-diffusion PC is prepared by, by weight percentage, 81.25-90.17% of PC, 5-15% of toughening agent, 0.8% of light diffusion agent, 1.5-2.5% of flame retardant, 0.4-0.6% of synergic-effect flame retardant, 0.1-0.5% of hydrolysis-resistant agent, 0.1-0.5% of anti-UV agent, 0.03-0.05% of pigment, 0.3% of antioxidant and 0.3% of dispersing agent. The light-diffusion PC has the advantages that the light-diffusion PC is good in flame-retardant effect and weather resistance, indoor and outdoor use requirements can be satisfied, the light-diffusion PC is high in light permeability, good in toughness and ideal in appearance color, and consumers' requirements on lamps can be satisfied.

The invention discloses an installation support for a solar photovoltaic battery component. At least two regulating holes are arranged in a telescopic rod in a length direction of the telescopic rod;a second support tube is provided with insertion rods inserted into the regulating holes; a second spring is arranged between a limiting plate and a positioning shell; one end, far from a rotary disc,of the insertion rod is a wedge; the telescopic rod is provided with teeth; a gear is arranged in the second shell in a rotating manner; a rotary shaft of the gear is provided with a ratchet; the rotary shaft is further provided with a rotary cylinder with a pawl in a rotating manner; the rotary cylinder is provided with a pull rod for pulling the pawl to release from the ratchet; a mobile rod isinserted in one end of a guide sleeve; one end of the mobile rod stretches out of a placement rack; and ends, back to each other, of the guide sleeve and the mobile rod are provided with L-shaped plates. Due to match of the insertion rods, regulating holes, teeth, gear, ratchet and pawl, the telescopic rod is displaced, so that a worker can regulate degree of inclination of the placement rack conveniently, and power generation efficiency of a photovoltaic battery panel is improved; further, the mobile rod that is inserted and can slide can be used for installing different sizes of photovoltaic battery panel, so that the installation support is very convenient.

The invention discloses an LED fluorescent glue that improves the uniformity of light emission. In parts by weight, the fluorescent glue consists of 1 part of packaging glue, 0.01-1 part of fluorescent powder, 0.01-0.1 part of silica-based inorganic nanoparticles, 0.01 part of ‑1 part silicone granules. Inorganic nanomaterials and silicone particles are mixed in the encapsulation glue, which reduces the sedimentation rate of the phosphor in the encapsulation glue, improves the uniformity of the phosphor distribution in the colloid, makes the white light spot more uniform, and improves the light diffusivity and transmittance. The light rate is maximized, and by changing the propagation path of the light, the light of various wavelengths is more fully mixed, and the spatial color uniformity of the light is further improved. It also provides an LED packaging method and LED that improve the uniformity of light emission, which improves the consistency of products, reduces the probability of uneven color distribution in space due to uneven distribution of phosphor powder, and improves product yield and product production. efficiency.

The invention discloses a reflecting luminous film. The reflecting luminous film sequentially comprises an explosion-proof film, a reflecting layer, a luminous layer, a hardness processing layer, a three-dimensional knurling layer and a base layer which are connected through bonding agents from top to bottom, wherein the explosion-proof film comprises a substrate and a color change layer arranged on the substrate; the color change layer is formed by arranging sulfide nanometer layers and oxide nanometer layers in a staggered way. The luminous performance of luminous materials is used by reflecting materials; the capability of people for recognizing signboards is enhanced under the condition of insufficient light rays, so that an objective can be clearly seen; the potential safety hazards are reduced; the reverse reflection principle of the reflecting materials is used by the luminous materials; the luminous intensity of the reflecting luminous film is enhanced.

The invention provides a manufacturing method of a trackpad. The method comprises: step 1, providing a glass substrate; step 2, conducting etching on the surface of the glass substrate with silk print etching ink; and step 3, immersing the etched glass substrate in a glass polishing solution to carry out polishing, thus obtaining the trackpad. The invention also provides the trackpad obtained by the method. Employment of the method disclosed in the invention to manufacture the trackpad can ensure the touchpad certain roughness, improve the touch sense of existing trackpads, and can endow the trackpad with certain light transmittance and guarantee its glossiness. Therefore, the method is conducive to improve the quality of the trackpad, thus further improving the use performance of electronic products.

The embodiment of the invention discloses a display panel, a preparation method thereof and a display device. The display panel comprises a first display area; wherein the first display area comprisesa first substrate, a second substrate, a first driving array layer, a first planarization layer and a first pixel limiting layer which are arranged in a stacked mode, and the first pixel limiting layer comprises a plurality of first openings; the first driving array layer comprises an element region and a non-element region, and the first driving array layer encapsulates the first planarization layer and the first pixel limiting layer; a via hole is formed between at least two adjacent first openings, and the non-element area covers the via hole in the thickness direction of the display panel; the via hole at least penetrates through the second substrate; the via hole is filled with a transparent material, so that the light transmittance of the first display area is improved; according tothe display panel, on the basis that the light transmittance is guaranteed, the via hole area cannot form a hollow structure, so that the panel is not prone to deformation when the display panel is stressed, and the reliability of the display panel is guaranteed; and water and oxygen can be prevented from entering from the via hole, so that the packaging performance is improved.

The invention provides an optical wafer, which comprises a basis material and at least one protection layer. The protection layer is positioned on at least one surface of the basis material and has an organic layer, and the organic layer comprises a thermosetting resin used for increasing the basis material toughness. The protection layer and the basis material have good adherence with each other. The optical wafer protected by the protection layer can not produce warp and has high optical transparency.

The invention belongs to the technical field of machining, and relates to a machining method and clamping fixture for a high-precision thin-wall elastic opening piston ring part. The method comprisesthe steps: 1) turning an inner mold part and an outer mold part; 2) milling the inner mold part; 3) cutting into pieces; 4) grinding an end face; 5) cutting a groove; 6) quenching and tempering heat treatment; 7) grinding an end face; 8) turning an outer circle; 9) cutting an opening; and 10) cutting an inner hole, grinding the inner hole and grinding the outer circle. According to the method, parts are firstly cut and then overlaid to be machined, deformation caused by final opening cutting is reduced, the light transmittance and opening size requirements of the parts in the working state aremet, the machining quality of the parts in the same batch is good, and the percent of pass is high; and the reliable positioning and clamping fixture is adopted, the process method is simple, operation is convenient, reliability is good, and application and popularization are easy.

The invention discloses a top emission organic light-emitting device. A cathode layer of the top emission organic light-emitting device is plated with a covering layer, the covering layer is an organic material, the refractive index of the organic material is larger than 1.8 within the wavelength range of 450-650nm, and the energy gap (Eg) of the organic material is larger than 3.0eV. The invention further discloses a manufacturing method of the top emission organic light-emitting device. According to the top emission organic light-emitting device, the light transmittance of a cathode can be guaranteed, and meanwhile, the situation that a display screen changes with changes of visual angles can be avoided.

The invention relates to the technical field of biology, particularly a microalgae culture reactor capable of setting different concentration CO2 culture environments, which comprises a culture box, an ultraviolet lamp tube, a gas inlet pipe and a gas outlet pipe, wherein the box body of the culture box is a transparent box body; the lower side of the front end of culture box is provided with a gas inlet; the upper side of the back end of the culture box is provided with a gas outlet; the gas inlet pipe and gas outlet pipe respectively connected with the gas inlet and gas outlet of the culture box are respectively provided with a gas flowmeter and a valve; a CO2 gas analyzer for detecting carbon dioxide concentration at the gas inlet and gas outlet is arranged outside the culture box; the gas inlet and gas outlet of the culture box are respectively provided with a gas filter unit; and a humidification system is arranged in the culture box. A plurality of culture box can be arranged in parallel. By setting different concentration CO2 culture environments to screen the wild type microalgae or corresponding mutants, the complete reactor is simple in structure and convenient to operate.

The invention discloses a nano material modified fluorocarbon stone stone waterproof coating. The coating includes the following raw material components: resin raw material consisting of vinylidene fluoride resin and acrylic resin, multi-layer graphene oxide, a silane coupling agent, dibutyltin dichloride and solvent oil. The hardness, wear resistance and permeability resistance of the nano material modified fluorocarbon stone stone waterproof coating can be greatly improved by two-dimensional nanomaterial technology on the premise of guaranteeing of the transmittance and glossiness of the stone waterproof coating, and the protection life and the protection effect of the stone waterproof coating are greatly improved.