70results about How to "Does not affect penetration" patented technology

The invention discloses a recoverable artificial lawn and a preparation method thereof. The artificial lawn has the obvious advantages of being capable of being recovered, environmentally-friendly, free of glue, capable of achieving normal water discharging without need of punching water discharging holes, and the like and has high pulling-out force. The recoverable artificial lawn comprises artificial grass silks and a base fabric, wherein the base fabric consists of a base fabric A for fixing the grass silks and a base fabric B at the bottom of a lawn body; and the base fabric A for fixing the grass silks and the base fabric B at the bottom of the lawn body are stuck together in a thermal compounding mode.

A liquid crystal display is featured as utilizing reference electrode with two or above different potential distributions to cause variation of liquid crystal arrangement angle in sub-pixel region corresponding to said electrode in order to make Gamma curve and color of display at large visual angle be near to effect of front-view angle and to not influence penetration ratio and display effect of original front-view angle. The driving method and electrode-configuring method of said liquid crystal display are also disclosed.

The invention discloses a salt-free high-chrome-absorption chrome tanning method for animal skin and application of the salt-free high-chrome-absorption chrome tanning method. The salt-free high-chrome-absorption chrome tanning method is characterized by comprising the following steps of treating pretreated animal skin by using aromatic sulfonic acid or a low-molecular polycondensate thereof; regulating the pH value of the animal skin to 4.0-6.5 under the condition that no neutral salts such as sodium chloride and sodium sulfate are used; and carrying out chrome tanning under a relatively high initial pH value condition to realize salt-free high-chrome-absorption tanning. By using the salt-free high-chrome-absorption chrome tanning method, the problem that the quality and performances of leather or fur are influenced because the skin possibly has the acid expansion phenomenon under salt-free and acidic tanning conditions, the combination of chrome and the surface of the skin are excessively fast during the tanning, and the chrome cannot permeate the skin easily under the relatively high initial pH value condition is solved; and compared with the conventional chrome tanning method, the chrome tanning method disclosed by the invention is advantaged in that the chrome tanning efficiency is remarkably increased, the consumption of chrome can be reduced by more than 30%, the absorption rate of chrome is up to more than 98%, the concentration of chrome in chrome tanning effluent is reduced to be less than 50mg / L, chrome in wet blue leather is more uniformly distributed, and the chrome tanning effluent can be recycled many times. By using the salt-free high-chrome-absorption chrome tanning method, the chlorine and chrome pollution generated in the leather and fur preparation processes is remarkably reduced.

The invention discloses a framework-free conveniently installed electric heating floor system. The framework-free conveniently installed electric heating floor system is characterized by comprising electric heating floors, conducting connection devices and a tee-joint conducting device. When the electric heating floors of the system are installed, the conducting connection devices are first fixed on base plate heat-preserving plates of the electric heating floors through screws, clamp grooves, adhesive or other composite forms. A front electric heating floor and a back electric heating floor which are provided with the conducting connection devices are connected through a floor connecting device, and then connecting elements for connecting the two electric heating floors are connected through locking of the floor connecting device. Positive electrodes and negative electrodes are led to the tee-joint conducting device from the side portions of each row of electric heating floors and are in butt-joint with a household power grid. Finally, each row of electric heating floors emits heat in a parallel-connection work mode. When the framework-free conveniently installed electric heating floor system is installed, circuits of the electric heating floors are connected through sealing connection devices, safe and stable heat-emitting work is achieved accordingly, each row of electric heating floors works in a parallel-connection mode, and the framework-free conveniently installed electric heating floor system is convenient to install, high in service life and low in additional installing cost.

The invention discloses a method for preparing a carbon fiber-reinforced ceramic-based composite material. According to the method, carbon fiber is adopted as a reinforcement body, the pore structureis adjusted through addition of expandable graphite to high-carbon residue resin, and the high-performance ceramic-based composite material is prepared through hot-press molding, carbonization and melting silicidation. The carbon fiber-reinforced ceramic-based composite material has a simple preparation process, low cost and a short cycle, and silicon carbide and silicon are dispersed uniformly inthe matrix of the prepared composite material.

The invention discloses a display device. The display device includes an anode, a meshy electric conduction circuit, a flexible substrate, a light emitting layer and a cathode; the surface of one side of the anode is loaded with metal particles; the meshy electric conduction circuit is located at one side of the anode which is loaded with the metal particles; the flexible substrate is located at one side of the anode which is loaded with the metal particles and covers the meshy electric conduction circuit; the light emitting layer is located at one side of the anode which is far away from the metal particles; and the cathode is located at one side of the light emitting layer which is far away from the anode. The invention also discloses a manufacture method of the display device. According to the display device of the invention, the anode has good conductivity, and therefore, the display device has the advantages of high transmittance rate, stable structure and simple process.

The invention relates to a method for planting herbaceous plants in furrow-shaped out-soil in a saline and alkaline land. The method comprises the following steps: digging multiple furrows in parallel in the saline and alkaline land, and sequentially filling a pebble bed and an aeolian sand layer into each furrow; on the aeolian sand layer, placing two or more rows of support stone in parallel in a direction extending along with the furrows, and forming a planting area between every two adjacent rows of the support stone; mixing the aeolian sand with herbaceous plant seeds, and uniformly throwing the seeds into the planting areas; by taking the support stone as a support, covering the planting areas with plant fiber gridding cloth, wherein meshes through which plant seedlings penetrate are densely formed in the plant fiber gridding cloth; and placing a drip irrigation pipe above the plant fiber gridding cloth, and irrigating the planting areas at regular time. By adopting the method provided by the invention, technical difficulties in planting grass in the furrow-shaped out-soil in the saline and alkaline land can be solved, salt dust leaching and soil wind erosion can be prevented and treated, effective evaporation of a surface layer can be reduced, a soil environment can be improved, the seedling survival rate can be increased, and popularization values can be made.

The invention relates to a spray type lubricating antirust agent and a preparation method thereof, and belongs to the technical field of adjuvants for medical apparatus and instruments. The spray type lubricating antirust agent is prepared from the following raw materials in percentage by weight: 10 to 50 percent of basic oil, 10 to 60 percent of an emulsifier, 1 to 10 percent of a co-emulsifier, 2 to 60 percent of a solvent and 10 to 50 percent of a propellant. According to the spray type lubricating antirust agent, the raw materials are environmentally-friendly and readily available; the spray type lubricating antirust agent is high in drying speed, good in lubricating effect and high in water solubility and can be completely punctured by sterilization factors. The invention further provides a simple and feasible preparation method.

The invention belongs to a preparing method of an adhesive film for edges of electrodes, which is characterized by comprising the following preparing processes: 1) preparing adhesive: pouring anhydrous ethyl alcohol into a container, adding PVB while agitating and then uniformly agitating, sealing and laying the container up over 12 hours, thereby forming liquid cement, 2) dipping the liquid cement: taking the liquid cement to dilute with anhydrous ethyl alcohol, then dipping and coating the mixed liquid cement onto the edge of an electrode plate, 3) scraping edges: utilizing a stainless steel sheet to flatten the four flanges of the electrode plate, and the edges of the electrode plate are dipped with the liquid cement, thereby forming an adhesive film layer at the edges of the electrode plate after drying. By dipping and coating the liquid cement with fine permeability and adhesiveness on the edges of the electrode, active substance particles can be caught, thereby forming an adhesive film, which is not only simple in structure but can effectively prevent battery short circuit caused by powder-off and burr on the edges of the electrode. Further, because the adhesive film is extremely thin, the thickness and volume of the edges of the electrode can not be increased, and influence on ion breakthrough are avoided, thereby preventing damages to battery performances and increasing battery properties.

The invention discloses a high temperature resistant battery diaphragm containing a cellulose fiber substrate and a preparation method thereof. The high temperature resistant battery diaphragm has a thickness of 20-40micrometer, a porosity of 40-60%, and air permeability of 15-30sec / 100cc. The diaphragm includes a cellulose fiber substrate, a porous adhesive layer and an inorganic coating. The preparation method includes: subjecting an aqueous polyurethane emulsion to mechanical foaming, conveying a foam glue to a foam bath device, immersing the cellulose fiber substrate by traction into foambath for gluing, and letting the foam glue form the porous adhesive layer on the substrate surface; coating the cellulose fiber substrate and the porous adhesive layer with an inorganic paint, conducting compounding to form an inorganic coating; and performing drying. The high temperature resistant battery diaphragm provided by the invention has the advantages of good imbibition and liquid retention ability, no shrinkage, longitudinal and horizontal hot shrinkage both below 2%, high ion penetrability, low resistance, excellent mechanical properties, and stable electrochemical properties, and can prevent battery short circuit and dendrite piercing.

The invention discloses an array substrate and a display panel. A common electrode layer on the array substrate comprises a common electrode trunk and a plurality of common electrode branches, a pixel electrode layer comprises a plurality of mutually connected pixel electrode branches, each pixel electrode branch comprises a branch main body and a branch tail end connected with the branch main body, the branch tail end comprises a first side, a second side and a third side, the first side and the public electrode trunk are oppositely arranged to form a first gap, and the second side and the third side are oppositely arranged with the corresponding common electrode branches respectively to form a second gap and a third gap; a fourth gap is formed between the branch main body and the common electrode branch; and in the first gap, the second gap and the third gap, the width value corresponding to at least one gap is smaller than the width of the fourth gap. By reducing the gap between the branch tail end of the pixel electrode and the common electrode, the electric field intensity of the branch tail end is increased, and the electric field interference between the branch tail end and the common electrode caused by the scanning line and the data line is reduced.

The invention discloses a large-load core holder capable of integrating CT scanning and a true triaxial experiment device.The large-load core holder comprises an upper force transmission end, a lower force transmission end and a barrel; a sample cavity and four capsule containing cavities are formed in a hollow cavity of the barrel; two capsule bodies located in the left capsule containing cavity and the right capsule containing cavity are used for X-direction flexible loading force transmission, and two capsule bodies located in the front capsule containing cavity and the rear capsule containing cavity are used for Y-direction flexible loading force transmission; each capsule body is provided with an inwards-turned skirt edge connector; a sealing plug is in interference fit connection with the interior of each inwards-turned skirt edge connector; a liquid injection pipe communicated with an inner cavity of the corresponding capsule body is arranged on each sealing plug in a penetrating mode; all the liquid injection pipes penetrate out of the upper force transmission end; in addition, a Z-direction loading piston rod is arranged in the center of the lower force transmission end in a penetrating mode. The large-load true triaxial experiment device comprises the large-load rock core holder, a Z-direction loading cylinder, an X-direction hydraulic loading system, a Y-direction hydraulic loading system and a Z-direction hydraulic loading system.

The invention discloses external-application traditional Chinese medicine powder for treating acute gouty arthritis and a preparation method of the external-application traditional Chinese medicine powder, belonging to the technical field of traditional Chinese medicines. The external-application traditional Chinese medicine powder contains the following 26 traditional Chinese medicines: chinese redbud bark, negundo chastetree fruit, angelica, radix paeoniae rubra, radix cyathulae, zedoary, cortex acanthopanacis, pawpaw, notopterygium root, radix angelicae tuhuo,radix angelicae dahuricae, radix clematidis, radix saposhnikoviae, radix stephaniae tetrandrae, radices trichosanthis, rhizoma chuanxiong, radix gentianae macrophyllae, fructus forsythia, liquorice, poisonvine, achyranthes aspera, rhizoma smilacis glabrae, caulis spatholobi, rhizoma polygoni cuspidate, cacumen platycladi and radix sophorae flavescentis. The invention also discloses a preparation method and a use method of the external-application traditional Chinese medicine powder. The external-application traditional Chinese medicine powder takes multiple traditional Chinese medicines as raw materials, has the efficacies of clearing away heat, removing dampness, promoting blood circulation, removing blood stasis, relieving swelling and pain, setting fracture and benefiting joints, is mainly used for treating thermal arthritis mainly presenting red, swelling, heat and pain, particularly the acute gouty arthritis, and can be further used for treating purplish swelling and pain caused by the injury of bones and muscles as well as old trauma.

The invention relates to a vehicle-mounted capacitive touch display and a manufacturing process thereof. The display comprises a transparent glass cover plate, a touch screen function sheet and a display module; the glass cover plate is provided with a non-visible region and a visible region in a closed ring shape; the non-visible region is located in a peripheral edge region of the glass cover plate; the visible region is located in the non-visible region; the upper surface of the glass cover plate is covered by a black semi-transparent explosion-proof film; a region corresponding to the non-visible region of the lower surface of the glass cover plate is provided with a shielding layer; the touch screen function sheet is arranged on the display module; the glass cover plate covers the touch screen function sheet; and the touch screen function sheet is located below the visible region of the glass cover plate. By arranging the black semi-transparent explosion-film film on the glass cover plate, the non-visible region of the glass cover plate achieves an integrated black effect together with the color of the touch screen function sheet; and by testing, the process difficulty of arranging a semi-transparent layer on the lower surface of the glass cover plate is avoided, so that the production cost is reduced, the production efficiency is improved, and the yield is increased.

A LCD apparatus comprises a first base plate, second base plate, a crystal layer and first electro-magnetism blind layer. And the first base plate has a black array and the crystal layer is located between the first base plate and second base plate. The first electro-magnetism blind layer is located on the first base plate and the first electro-magnetism blind layer is located relevant to the black array. And the LCD apparatus can provide a protection to human body.

The invention discloses artificial turf and a preparation method thereof. The artificial turf has the prominent advantages that the artificial turf is totally recyclable, environment-friendly, and free from glue and can realize normal drainage and high output pull without piercing drain holes. The recyclable artificial turf provided by the invention comprises artificial grass silk and base cloth;the base cloth consists of base cloth A which is used for fixing the grass silk and base cloth which is composed of base cloth A for fixing grass silk and base cloth B located at the bottom of the turf, the base cloth A for fixing the grass silk and the base cloth B at the bottom of the turf are pasted together through thermal bonding.

The invention discloses a silane impregnation paste used for concrete anticorrosion. The paste comprises, by weight, 35-65 parts of a silane monomer, 1-6 parts of an emulsifier, 0.5-1.5 parts of an emulsification stabilizer, 15-35 parts of deionized water, 1-2 parts of a thickener, 0.05-0.1 part of an antifoaming agent, 1-5 parts of an antiseptic and 1-8 parts of a dispersant. The invention also discloses a production method of the silane impregnation paste for concrete anticorrosion. The production method comprises the following steps: S1, weighing raw materials; S2, preparing a base material; S3, adding ingredients; and S4, carrying cooling treatment. The past can protect concrete from being frosted and being destroyed by seawater and / or deicing salt, greatly reduces the water absorption of capillary tubes, does not affect water vapor permeation, and also has the advantages of large permeation depth, high content of active components, superior alkali resistance, low volatility, water-based environmental protection, good thixotropy, no construction loss, and good adhesion in a surface brush coating.

The invention relates to a screen printing plate required by silk-screen printing. The screen printing plate required by silk-screen printing comprises the following steps of S1, manufacturing a net film gauze; S2, tightening and fixing the net film gauze with the size required by the to-be-manufactured screen printing plate to a screen frame; S3, adopting a liquid substance which is not dissolved by an organic solvent after being cured, and spraying the liquid substance on the printing surface, opposite to a net film, of the net film gauze in a liquid dot form by using a digital precise spraying device to form a dot-matrix cured film; and S4, after the curing film is cured by adopting an illumination, heating or natural drying device, heating the net film corresponding to the area where the pattern is located or heating the whole net film in a heating mode, and removing the net film which is shrunk and melted due to heating. The liquid substance is AB glue or UV ink, so that the problem that a plastic film is prone to being damaged is solved, screen developing does not need to be washed, water resources are saved, no harm is caused to a human body, pollution to the environment is avoided, and organic solvent resistance, high strength, good adhesive force, scrubbing resistance and high gloss are achieved.

The invention discloses a method and device for protecting the reliability of an electronic device when ionizing particles are bombarded. The method comprises the following steps: S1, calculating theaverage free path of ionizing radiation particles with different energies acting in the electronic device; S2, according to the grade requirement of the radiation protection and the average free pathof the ionizing radiation particles, determining the size and the air pressure value of the gas device required for radiation protection of the electronic device according to the technical node size of the electronic device; S3, placing the electronic device in the gas device and filling neutral gas with preset pressure; S4, reducing the energy flow density of the incident particles by the collision of the incident particles with the neutral gas in the gas device, and protecting the electronic device from damage caused by particle bombardment. Considering that the main external factor of damaging the electronic device is the strength of the ion energy flow, the invention reduces the energy flow density of the incident particles through the arrangement of the gas device and is combined withthe reliability circuit design, thereby protecting the electronic device from the damage caused by the particle bombardment and improving the reliability thereof.

The invention relates to the field of welding, and provides a high-speed welding hump defect suppression method based on non-coupling of a laser arc common molten pool, which comprises the following steps: connecting an argon tungsten-arc welding gun behind a laser welding gun in series along the welding direction, then adjusting the distance between the argon tungsten-arc welding gun and the laser welding gun, and adjusting the arc of the argon tungsten-arc welding gun. A certain distance is kept between the electric arc of the argon tungsten-arc welding gun and the laser beam of the laser welding gun, the coupling effect of metal vapor caused by the electric arc and the laser beam can be avoided, and the electric arc only regulates and controls the behavior of a molten pool generated by the laser beam. The arc force and arc heat of the arc can be changed by adjusting the arc, and the maximum distance Z between the highest point of the molten pool and the surface of the to-be-welded workpiece is smaller than or equal to the preset height. Therefore, under the action of arc force, high-speed liquid flow in the molten pool is decelerated, and under the action of arc heat, the width of the molten pool is increased, so that the stability of the liquid flow in the molten pool is enhanced, and the hump defect is inhibited.

The invention discloses a display panel, a driving method thereof and a display device, and relates to the technical field of display. The display panel comprises a substrate base plate; gate lines located on the first side of the substrate base plate; a gate drive circuit located in the first side of the substrate, and the first end of the gate line being electrically connected with the gate drive circuit; and a gating module located on the first side of the substrate, and comprising a plurality of transistors, and the second end of one gate line being electrically connected with the first end or the second end of one transistor. In the heating stage, the transistor is conducted, a signal between the first end and the second end of the gate line forms a voltage difference, and the gate line is multiplexed as a heating electrode. The problem that the response speed is low when the display panel works at a low temperature is effectively solved while an additional film layer design is not added.

The invention discloses a method and a device for realizing the soybean protein separation by two mediums-mixed leaching. The method comprises the following steps: feeding to the upper chamber of a leacher, spraying and immersing a protein flake by using a n-hexane solvent, extracting grease to obtain a protein flake; then sending the obtained protein flake to a lower chamber of the leacher, spraying and immersing at 48-52 DEG C by using an alcohol liquid, and extracting oligosaccharide ingredients from soybean meal; draining and then dehydrating; and separating to obtain soybean protein finally, wherein the volume fraction concentration of the n-hexane solvent is larger or equal to 60%, and the volume fraction concentration of alcohol is larger or equal to 65%. The device for realizing the method is a mixed type towline leacher which is characterized by adding a draining segment on the upper layer of the existing towline leacher body, arranging an independent circulating system and a matched precipitation separation system device. According to the invention, degreasing and desugaring can be realized at a time, thus the extraction effect is raised, and the protein yield is increased.

The invention discloses a method for manufacturing a screen printing plate required by silk-screen printing. The method comprises the following steps thatS1, net film yarns are manufactured; S2, the net film yarns with the size required by the to-be-manufactured screen printing plate is tightened and fixed to a screen frame; S3, a liquid substance which is not dissolved by an organic solvent is adopted after being cured, and the liquid substance is sprayed on the printing surface, away from the net film, of the net film yarn in a liquid dot form by using a digital precise spraying device to form a dot-matrix cured film; and S4, after the curing film is cured by adopting an illumination, heating or natural drying device, the net film corresponding to the area where a pattern is located is heated or the whole net film is heated in a heating mode, and the net film which is shrunk and melted due to the heating is removed. The liquid substance is AB glue or UV ink, the problem that a plastic film is prone to being damaged is solved by the method, screen printing plate developing does not need to be washed, water resources are saved, no harm is caused to the human body, pollution to the environment is avoided, and organic solvent resistance, high strength, good adhesive force, scrubbing resistance and high gloss are achieved.

The invention relates to the technical field of voice film, and specifically relates to telephone receiver film and a preparation method thereof. The method comprises the steps of A, overlapping, cutting, punching and clipping intermediate original film and surface original film, thereby preparing sleeve film, wherein the sleeve film comprises an intermediate frame group formed by the intermediate original film, and a surface frame group punched from the surface original film; B, preparing engineering original film by filling through a fan gate, and punching and clipping the engineering original film, thereby preparing engineering film group; and C, washing the intermediate frame group, the surface frame group and the engineering film group, bepowdering and cementing the upper surface and lower surface of the intermediate frame group, adhering the surface frame group on the upper surface of the intermediate frame group, adhering the engineering film group on the lower surface of the surface frame group, and carrying out punching and clipping to prepare a plurality of pieces of telephone receiver film. The preparation method of the telephone receiver film is simple; mass production can be realized; the miniature telephone receiver film can be prepared; and the prepared telephone receiver film has high elasticity, high toughness, good transient state, high sensitivity, high frequency response and everlasting good sound quality.

Automatic rebar pipe penetrating equipment for insulating rebar production comprises a pipe penetrating carrier frame, a rebar pushing device installed in front of the pipe penetrating carrier frame and an insulating pipe positioning and shaping die set installed on the pipe penetrating carrier frame, the pipe penetrating carrier frame comprises a rotating hub, the rotating hub is connected with arotating driving device, and the rotating driving device is controlled by a controller; and the insulating pipe positioning and shaping die set comprises an upper die and a lower die, a plurality ofrows of lower dies are evenly arranged on the circumferential face of the rotating hub in the circumferential direction, the rebar pushing device comprises a rack, a V-shaped groove used for positioning rebars is fixedly connected to the rack, and a pushing mechanism is installed on the rack. The device can be used for automatic pipe penetrating operation in insulation pipe production.

The invention provides an active polymer dye ink and applications of the active polymer dye ink in an ink jet printing and dyeing process for cotton fabrics. A purpose of the present invention is to solve the problems of low washing fastness and poor brilliance of the ink in the prior art. According to the present invention, the active polymer dye ink is prepared by carrying out a homogeneous grafting reaction on N,O-carboxymethyl chitosan as a polymeric dye skeleton and an active dye in an aqueous solution, wherein the active dye is formed by compounding an X-type active dye and a F-type active dye, and a molar ratio of the N,O-carboxymethyl chitosan to the active dye is 7-4:1; and the active dye molecules are grafted onto the skeleton of the N,O-carboxymethyl chitosan, such that the migration and the penetration of the active dye molecules are less so as to provide excellent performances of no toxicity, safety and convenient use.

The invention discloses a recoverable artificial lawn and a preparation method thereof. The artificial lawn has the obvious advantages of being capable of being recovered, environmentally-friendly, free of glue, capable of achieving normal water discharging without need of punching water discharging holes, and the like and has high pulling-out force. The recoverable artificial lawn comprises artificial grass silks and a base fabric, wherein the base fabric consists of a base fabric A for fixing the grass silks and a base fabric B at the bottom of a lawn body; and the base fabric A for fixing the grass silks and the base fabric B at the bottom of the lawn body are stuck together in a thermal compounding mode.

The invention discloses an algae cultivation device capable of uniform light illumination and relates to the technical field of algae cultivation devices. The algae cultivation device capable of uniform light illumination includes a bottom plate, the top of the bottom plate is fixedly connected with a water tank and a power box successively from left to right, the water tank and the power box areglued together, a motor is fixedly connected with the portion, located on the rear side of the power box, of the right side of the top of the bottom plate, and the front end of an output shaft of themotor penetrates through the rear wall of the power box and extends to the inside of the power box. According to the algae cultivation device capable of uniform light illumination, a swing wheel is arranged to cooperate with two sleeve rods to pull two pistons to reciprocate, accordingly the water in the water tank can be pushed to flow back and forth, circulating flow can be formed, so that algaeis prevented from clustering, the water is always maintained in a flowing state, formation of dead water is avoided, cultivation of the algae is facilitated, and flowing water always keeps the algaein a moving state; lamp tubes are arranged inside the water body, accordingly the algae can be directly illuminated from the inside, and it can also be ensured that the overall algae is uniformly illuminated during the movement of the algae.

The invention discloses a transparent display, a front light guiding plate and a layout method of a microstructural pattern of the front light guiding plate. The transparent display comprises a display panel, the front light guiding plate and a light source, wherein the front light guiding plate comprises a plurality of corresponding areas which respectively correspond to a plurality of pixel areas; each corresponding area comprises microstructural areas of the plurality of sub-pixel areas corresponding to pixel areas and non-microstructural areas of transparent areas corresponding to the pixel areas. The layout method of the microstructural pattern of the front light guiding plate comprises the following steps: S1, generating shield patterns; S2, choosing sample plate patterns; S3, inputting the shield patterns and the sample plate patterns into a machining stand; and S4, pushing the microstructures which are required to be machined in the shield patterns out of the shield patterns through the set machining stand. The transparent display provided by the invention is a transparent display device, and the penetration of the transparent display cannot be influenced because of the microstructures of the front light guiding plate so that the transparent display is high in transparency.

The invention provides a method for preparing a water-based polyurethane modified starch-based liquid mulch film. The preparation method includes preparing an oxidized starch dispersion, preparing an aminated oxidized starch dispersion, preparing a polyurethane prepolymer, and aqueous phase emulsion polymerization. The present invention oxidizes ST through clean and efficient electro-Fenton technology, improves the accessibility of the reaction, enhances the hydration dispersibility of starch molecules and the reactivity of surface hydroxyl groups, and then uses aminosilane coupling agent to carry out amination modification , using aqueous phase emulsion polymerization to achieve effective graft copolymerization of waterborne polyurethane (WPU) and aminated oxidized starch (AOST), and developed a new type of waterborne polyurethane‑starch composite (AOST‑g‑WPU). As an environmentally friendly biomass-based liquid mulch material, AOST‑g‑WPU exhibits excellent soil association, water absorption, water retention, biocompatibility and degradability.