29results about How to "Reduce static electricity" patented technology

The present invention relates to the technical field of composite membranes, and discloses a PO composite membrane and a preparation method thereof. The PO composite membrane prepared by the present invention comprises a base membrane and a coating liquid; wherein the base membrane is formed by coextrusion of an inner layer, a secondary outer layer and an outer layer, and the coating liquid is a mixture of the following raw materials in parts by weight: 25-35 parts of aluminum sol, 5-8 parts of modified hyperbranched polymer, 2-4 parts of polyvinyl pyrrolidone, 1-3 parts of sodium lauryl sulfate, 5-7 parts of polyacrylate resin, 4-6 parts of modified chitosan, and 45-55 parts of deionized water; after the base membrane is coated with the coating liquid, a composite membrane is obtained, which has excellent adhesion, hydrophilicity and drip anti-fogging performance.

The invention discloses a cotton spinning process for producing worsted pure wool yarns, and relates to the technical field of cotton spinning processes, which comprises the following steps: step S1, wool raw material screening and wool top cutting technology, step S2, wool fiber health treatment, step S3, wool top preparation, step S4, spinning process optimization, and step S5, wool fiber moisture regain control in the spinning process. Wool fibers selected by the wool raw materials are one of merino wool, Kastell wool, Toska wool, Buddha wool and northern Spanish wool, and the wool tops are cut by cutting the wool fibers into 40-45mm in length through a stretch-breaking assembly. The first motor is installed to start and drive the dispersion rod to rotate, the dispersion rod rotates to loosen wool raw materials, the loosen wool raw materials fall into the surface of the conveying belt to be treated, and the functions that the wool raw materials are looser, entanglement among wool fibers is reduced, and meanwhile fiber damage is reduced to the maximum extent are achieved.

The utility model discloses a display module and a display device, relates to the technical field of display, and can improve the electrostatic protection capability of a display product, thereby avoiding the problem of device damage to the display product caused by ESD, improving the reliability of the display product and prolonging the service life of the display product. The display module comprises a display panel; the first flexible circuit board is in binding connection with the display panel, and the first flexible circuit board comprises an electronic device; the back plate is arranged on the side, away from the display side, of the display panel; the outer frame and the display panel are arranged on different sides of the back plate respectively, the outer frame and the back plate both comprise conductive materials, and at least part of the first flexible circuit board is located on the side, close to the back plate, of the outer frame; and the conductive adhesive tape is electrically connected with the back plate and the outer frame respectively.

The utility model relates to the technical field of perforating machines, in particular to a packaging film perforating machine. Comprising a machine base, a guide roller assembly rotationally connected to the side wall of the machine base, a punching device fixedly arranged on the upper wall of the machine base, a scraping assembly and a waste collecting device arranged on the lower side of the punching device, and the guide roller assembly is used for conveying a packaging film to enable the packaging film to sequentially penetrate through the punching device and the scraping assembly; the scraping assembly comprises a first scraping brush fixedly arranged on the machine base and used for cleaning the upper surface of the packaging film and a second scraping brush fixedly arranged below the machine base and used for cleaning the lower surface of the packaging film. When the packaging film punching machine works, the punching device punches a packaging film, round hole waste generated by punching and located on the upper side of the packaging film is scraped into the waste collecting device by the first scraping brush, round hole waste located on the lower side of the packaging film is scraped into the waste collecting device by the second scraping brush to be stored, and then the round hole waste can be secondarily utilized.

This utility model discloses an antistatic membrane switch, specifically relating to the field of membrane switch technology. It includes a housing with a circuit board installed inside. Multiple spring contacts are mounted on the top of the circuit board via a fixing assembly. An insulating block is fixed to the top of each spring contact. A plastic button is mounted on the top of the insulating block. The plastic button is located on the top of the housing. A signal transmitter is mounted on the side of the circuit board. The insulating block on the top of the spring contacts enhances audible feedback. First, pressing the plastic button causes the insulating block to press down on the spring contacts, triggering the circuit board and transmitting a signal through the signal transmitter. Then, the spring contacts reset, pushing the insulating block to the bottom of the plastic button and emitting a sound, providing feedback to the user. The sound of the insulating block touching the plastic button allows the user to quickly confirm that the action has been received by the device, especially during blind operation or when wearing gloves. The sound helps determine whether the button has been pressed accurately, reducing the probability of accidental touches.

The invention relates to the technical field of functional paper and food packaging, in particular to a preparation method of fluoride-free degradable oil-proof packaging paper. The preparation method comprises the following steps: (1) preparing polydopamine modified palygorskite particles; (2) uniformly dispersing the polydopamine modified palygorskite in a solution containing glycerol or emulsified silicone oil and glutaraldehyde to obtain a coating A; (3) preparing a chitosan solution as a coating B; and (4) selecting different paper sheets, firstly dipping the paper sheets in the coating A solution, then dipping the paper sheets in the coating B solution after drying, and obtaining the fluoride-free degradable oil-proof paper after drying. The oil-proof packaging paper prepared by the preparation method has the advantages that the normal-temperature and high-temperature oil-proof performance is improved, the mechanical property and the barrier property are excellent, the application range of the oil-proof paper is expanded, and the service cycle is prolonged.

The invention provides a display device. The display device comprises a substrate; the first metal layer is arranged on the substrate and comprises a plurality of common lines and connecting lines, the length direction of the common lines is parallel to the first direction, and the common lines are arranged in the second direction; a gate insulating layer disposed on the first metal layer and the substrate; a semiconductor layer disposed on the gate insulating layer; the second metal layer is arranged on the gate insulation layer and comprises a plurality of shared lines, the length direction of the shared lines is parallel to the second direction, and the shared lines are arranged in the first direction; the common lines are electrically connected on two sides in a first direction through two first connecting lines, and the shared lines are electrically connected in a second direction through a second connecting line; or the common line is electrically connected with the fifth connecting line of the second metal layer through the third through hole, and the shared line is electrically connected with the fourth connecting line of the first metal layer through the second through hole. According to the invention, the electrostatic breakdown risk of the display device in the first dry etching process can be effectively reduced, and the product yield is improved.

The utility model discloses an antistatic dustproof woolen sweater which comprises a woolen sweater body made of wool knitted fabric. The wool knitted fabric comprises a first anti-static fabric layer, a warm-keeping fabric layer and a second anti-static fabric layer which are compounded with one another, the warm-keeping fabric layer is arranged between the first antistatic fabric layer and the second antistatic fabric layer; the warm-keeping fabric layer is formed by weaving warm-keeping yarns, and the warm-keeping yarns are bulked wool yarns. According to the anti-static dustproof woolen sweater, the first anti-static layer and the second anti-static layer are both formed by weaving the yarns with the anti-static function, so that the anti-static dustproof woolen sweater has a good anti-static effect, static accumulation of the woolen sweater in the wearing process is reduced, the static phenomenon is reduced, meanwhile, dust adsorption can be reduced, and the dustproof effect is achieved; and the warm-keeping fabric layer is fluffy and soft, has good elasticity and air permeability, and has good heat storage and warm-keeping effects.

The invention discloses an auxiliary heat dissipation device for power equipment, relates to the technical field of heat dissipation of the power equipment, and solves the technical problems that the heat dissipation effect of the power equipment close to a second heat dissipation device is the best, and the heat dissipation effect of the power equipment on the uppermost layer is relatively weak. Comprising a heat dissipation box body, and a lateral ventilation channel is formed in the side face of the heat dissipation box body; the auxiliary heat dissipation structure is arranged in the heat dissipation box body and is used for dissipating heat of the power equipment; according to the invention, external air can be sucked into the middle position of the heat dissipation box body, is cooled from the middle position of the heat dissipation box body, is pressurized from the two sides and is conveyed outwards, electrical equipment on the two sides of the air outlet frame is subjected to full air cooling heat dissipation, the circulation rate of pressurized air is increased, the flowing range of the pressurized air is larger, the heat dissipation effect of the electrical equipment is improved, and the service life of the electrical equipment is prolonged. And outdoor rainwater is collected and cooled, and the fiber ice curtain is matched, so that sucked outdoor air can be better cooled, and heat dissipation of the power equipment can be realized.

The present application is suitable for the technical field of textile manufacturing, and provides a garment anti-static treatment method, comprising the following steps: water washing: placing the garment in a drum washing machine, adding a water washing working solution, setting the temperature to 40-50 DEG C, the rotating speed to 15-20 r / min, the bath ratio to 1:30, and the water washing time to 20-30 min; dehydration; drying, the temperature being 50-90 DEG C; garment absorbing finishing liquid; drying, the temperature being 60-90 DEG C; baking: the temperature being 140-170 DEG C, and the time being 1-3 min; cooling; the present application is helpful for the subsequent anti-static finishing liquid to fully penetrate into the garment material by first water washing and adding a penetrating agent, and then using an anti-static finishing liquid containing a block copolymer of polyethylene oxide and polyethylene terephthalate to finish, introducing an anti-static group and cross-linking reaction with the fiber to form a reticular cross-linked polymer, reducing the friction coefficient of the fabric, reducing the fiber surface resistance, accelerating the dissipation of static electricity, so as to achieve the effect of reducing static electricity.

The utility model belongs to the technical field of dyeing equipment, and particularly relates to dyeing equipment for cloth spinning, which comprises a dye liquor box, the outer wall of the dye liquor box is fixedly connected with a fixing frame, the surface of the fixing frame is sleeved with textile cloth, the outer wall of the dye liquor box is fixedly connected with a drying box, and the outer wall of the dye liquor box is provided with a flattening device. The flattening device is movably connected with the positioning assembly and comprises a fixing base. According to the dyeing equipment for cloth spinning, the flattening device is arranged, a handle is pressed, the handle drives a disc to rotate, a module protruding out of the disc extrudes a flattening roller to move forwards to make contact with textile cloth in transmission and conduct smoothing work on the textile cloth, and by applying certain pressure and tension, the flattening device can make the surface of the cloth smoother and smoother; friction and electrostatic interaction between the cloth are reduced, the adhesion phenomenon of the cloth is effectively inhibited, and the production process of the dyeing equipment is optimized.

The present invention relates to an adhesive composition and a protective film using the same. The present invention can provide a protective film, that is, an adhesive composition containing an antistatic agent having two or more ionic liquids has excellent optical properties, wettability and adhesion, and when peeled, the electrostatic phenomenon and peeling charge voltage are low, the surface contamination of the adherend is low, and even after a long time, the physical property of the adhesive layer changes little. Therefore, the protective film using the above adhesive composition can be effectively used in the process of display panel preparation.

The invention relates to the technical field of composite membranes, and discloses a PO composite membrane and a preparation method thereof. The PO composite membrane prepared by the invention comprises a basic membrane and a coating liquid, wherein the basic film is formed by co-extruding an inner layer, a secondary outer layer and an outer layer, and the coating liquid is prepared by co-mixing the following raw materials in parts by weight: 25-35 parts of alumina sol, 5-8 parts of a modified hyperbranched polymer, 2-4 parts of polyvinylpyrrolidone, 1-3 parts of sodium lauryl sulfate, 5-7 parts of polyacrylate resin, 4-6 parts of modified chitosan and 45-55 parts of deionized water; the base film is coated with the coating liquid to prepare the composite film, and the composite film has excellent adhesive force, hydrophilicity and dripping antifogging performance.

The utility model discloses a size gear pump capable of preventing high-voltage static electricity. The size gear pump comprises a driving motor, a damping transmission wheel, a driving wheel transmission shaft, a driving wheel and a driven wheel, a first connecting groove and a second connecting groove are formed in the two ends of the damping transmission wheel respectively, the two grooves do not communicate with each other to form a partition, a partition is formed between a driving wheel transmission shaft and a motor shaft, static electricity at a driving wheel driven shaft is effectively prevented from being transmitted into a driving motor, and therefore electric leakage of the driving motor is avoided; meanwhile, the static electricity on the outer surface of the pump body is reduced, the service life of the gear pump is prolonged, and the safety is improved.

The utility model belongs to the technical field of optics, and particularly relates to a reflector back plate cleaning device which comprises a placing table. The top of the placing table is fixedly connected with a first fixing rod, the end of the first fixing rod is fixedly connected with an electric push rod, the bottom of the electric push rod is fixedly connected with multiple sets of connecting rods, the bottom of the electric push rod is fixedly connected with a first spring, the end of the first spring is fixedly connected with the ends of the multiple sets of connecting rods, and the middle of the first spring is fixedly connected with multiple sets of elastic cloth. Burrs and residues generated after the reflector back plate is polished can be effectively cleaned, the surface of the reflector back plate can be effectively cleaned to be smoother, corrosion to the surface of the reflector back plate can be reduced by removing the polished burrs, scratches and damage of the burrs and impurities to the reflector back plate are reduced, and therefore the service life of the reflector back plate is prolonged. In addition, scattering and reflection of the optical fiber can be effectively reduced by cleaning the reflector back plate, and therefore the optical performance is improved.

The present invention relates to the field of liquid storage, and in particular to a storage container for acetaldehyde solution standard substance, comprising an air cooler, a box, a storage tank, a vent pipe and a base, wherein the storage tank is installed in the box through a connecting frame, the box is placed on the base, an air inlet pipe and an exhaust pipe are arranged in the storage tank, one end of the air inlet pipe is connected to the vent pipe, the other end of the air inlet pipe is connected to the exhaust pipe, the other end of the exhaust pipe passes through a side wall of the storage tank, and the vent pipe is connected to the air cooler; the temperature of the acetaldehyde solution in the storage tank is kept stable during transportation to avoid reaction changes due to high temperature, cold air passing through the air inlet pipe, the exhaust pipe and a cold air chamber opened in a wave-breaking plate passes through the exhaust pipe and the exhaust groove, such as in the box, and the outside and the inside of the tank are cooled at the same time, so that the acetaldehyde solution in the storage tank is cooled evenly, and the reaction changes of the acetaldehyde solution standard substance due to temperature difference are reduced.

The invention discloses an oxide layer polishing solution and application thereof. The oxide layer polishing solution comprises the following components in percentage by mass: 10%-20% of a grinding agent, 0.2%-1% of a pH regulator, 0.01%-0.05% of an auxiliary agent and deionized water, wherein the auxiliary agent is a compound containing a conjugated structure and containing amino and carboxyl. The chemical mechanical polishing solution for the oxide layer has the characteristics of high polishing rate, few corrosion pits, few residues of particles and metal ions and the like.

The invention provides an anti-hair-sticking sports yoga fabric and a preparation method thereof.The anti-hair-sticking sports yoga fabric comprises first yarn and second yarn, the first yarn comprises chinlon filaments with the hygroscopicity being 5-6%, and the second yarn comprises polyester filaments with the hygroscopicity being 1-2%; the first yarn and the second yarn are woven into the fabric with a double-sided structure by taking the third yarn as a middle layer, the first yarn serves as an outer layer of the fabric, the second yarn serves as an inner layer of the fabric, the third yarn comprises spandex filaments, moisture is stored and conducted in fibers and the fabric by improving the moisture absorption and the moisture content of the fabric, and the moisture absorption performance of the fabric is improved. Therefore, the conductivity of the fabric is improved, the electrostatic phenomenon is reduced, the anti-hair-sticking performance of the fabric is improved, and the problems that hair is prone to sticking and is not easy to clean when a consumer wears the fabric are solved.

The utility model provides a novel panel conductive brush device, which is arranged at the position of a transmission shaft of a substrate glass outlet section of a machine table and comprises a plurality of static conductive brushes, the static conductive brushes are divided into two groups, and the two groups of static conductive brushes are distributed on the upper side and the lower side of a transmission shaft. Bristles of the two sets of static electricity conductive brushes make contact with the conveying shaft, the two sets of static electricity conductive brushes are connected through a wire, and the wire is grounded through a grounding end. The electrostatic conductive brush is additionally arranged on the side face of the conveying shaft to conduct electrostatic discharge on the rolling shaft type transmission component, the electrostatic influence of the rolling shaft type transmission component on the substrate glass is reduced, the abnormal influence of static electricity on the substrate glass is effectively improved, and good damage of products caused by metal wire explosion is reduced.

The utility model relates to the technical field of garment materials, and discloses a novel warm-keeping garment which comprises a garment body, the garment body is formed by sequentially weaving a wear-resisting layer, a first fabric main layer, a second fabric main layer and a cotton layer, and a cavity is formed between the first fabric main layer and the second fabric main layer in a sewing mode. According to the warm-keeping garment, when a wearer wears the garment body to go out for keeping warm, the lock head can be pulled downwards through the pull head, so that the two sets of zipper tooth layers are in an open state, the warm-keeping material layer matched with the interior of the cavity can be stuffed into the cavity for filling, and after filling and mounting are completed, the zipper tooth layers can be pulled downwards through the pull head, so that the two sets of zipper tooth layers can be closed. When a wearer wears the garment, the lock heads can be pulled again to lock the two sets of zipper tooth layers, at the moment, the warmth retention property of the garment body can be improved through the warmth retention material layer in the cavity, the situation that the zipper tooth layers are arranged on the inner side of the garment body is avoided, static electricity is further reduced through the anti-static layer, and therefore the effect of improving the comfort of the wearer is achieved.

This utility model relates to the field of shielding film technology and discloses a rewinding device for shielding film production, including a base, with a motor fixedly connected to one side of the outer wall of the base. In this utility model, the airflow generated by the air pump enters the inner cavity of the guide roller through a connecting pipe and is discharged through an exhaust hole to form a stable air film. This air film provides flexible support, offering uniform lifting force to the shielding film to maintain a stable transmission height and path. It also reduces the direct contact area between the shielding film and the guide roller, fundamentally reducing the amount of static electricity generated by solid friction, significantly reducing the probability of dust and impurity adsorption, and effectively preventing stains or impurity indentations on the product surface. Simultaneously, when the motor drives the lead screw to rotate, the rotational motion can be converted into linear motion through a slider, enabling flexible adjustment of the axial position of the guide roller and ensuring that the air film always acts on the central area of ​​the shielding film, guaranteeing support stability.

The utility model relates to the technical field of printing paper production, and disclose a kind of digital printing paper removes static device, including mounting bracket, and the inside of mounting bracket is provided with cleaning mechanism, and the bottom of cleaning mechanism is provided with air duct, and the top of air duct is provided with dustproof mechanism, and cleaning mechanism includes motor, and motor is fixedly connected in the inside of mounting bracket, and motor output end is fixedly connected with worm. The digital printing paper removes static device, the cleaning mechanism of being set, so that air duct can be flexibly adjusted according to the different conveying thickness of digital printing paper, when adjusting to the appropriate height, ion fan can be started to work at this time, so that the purpose of removing static electricity can be realized, reduce the situation that digital printing paper can produce static electricity in the process of transportation, and avoid printing edge blur, appear the situation of "snowflake" spot, reduce the influence caused by digital printing paper in production and processing work, enhance the practicality of device.

The utility model discloses a pet comb convenient for hair removal, relates to the technical field of pet combs, and aims to solve the problems that in the prior art, in the process of combing pet hair through the pet comb, the pet hair is easily wound on comb teeth, and when the hair on the comb teeth is removed, the comb teeth are dense, and the hair removal operation is troublesome. The comb comprises a handle, a comb plate is installed below the handle, a plurality of first comb teeth and a plurality of second comb teeth are arranged below the comb plate, the first comb teeth and the second comb teeth are arranged at intervals, the first comb teeth are fixedly connected with the comb plate, groove holes are formed in the comb plate along the upper portions of the second comb teeth, and the second comb teeth are fixedly connected with the groove holes. A mounting block is arranged in the slotted hole, the mounting block is fixedly connected with the second comb teeth, a translation cavity is formed in the comb plate, a translation plate is arranged in the translation cavity, the translation plate is attached to the comb plate, and the translation plate is fixedly connected with the mounting block.

The invention discloses a preparation method of a multi-layer microcapsule for delivering fucoxanthin, and belongs to the technical field of food and drug processing. The preparation method comprises the following steps: S1, mixing krill oil with a co-emulsifier to obtain a microemulsion, adding fucoxanthin, stirring to obtain a krill oil self-microemulsion system, adding water, and mixing to obtain a fucoxanthin-loaded microemulsion; s2, mixing the obtained fucoxanthin-loaded microemulsion with chitosan, and adding a polysaccharide solution into the obtained mixed solution for mixing, so as to obtain a feed solution; and S3, drying the feed liquid to obtain the fucoxanthin-loaded microcapsule. The microcapsule wall material is prepared through electrostatic layer-by-layer deposition on the fucoxanthin-loaded microemulsion, and then spray drying is performed to obtain the fucoxanthin-loaded multilayer microcapsule, so that the bioavailability of fucoxanthin can be improved, and fixed-point release of fucoxanthin is realized.

The utility model discloses a glass protective film take-up device which comprises a base and a mounting stand column, the top end of the base is fixedly connected with a support, an adjusting plate is moved until a proper size is achieved, a threaded rod is rotated to insert a fixing block into a fixing groove, the adjusting plate is limited, a driving motor is started, and the mounting stand column is driven to rotate. The driving motor drives the winding roller to rotate through the output shaft to wind the glass protective film, at the moment, the output shaft drives the driven shaft to rotate through the transmission belt, the driven shaft rotates to drive the dust removal fan to rotate, the dust removal fan rotates to discharge dust around the winding roller, and the situation that static electricity is generated due to much dust during winding of the glass protective film is reduced; in the winding process, the thickness of the glass protective film is increased to extrude the pressing roller, the pressing roller is extruded to extrude the first spring, the first spring is extruded to drive the pressing roller to extrude the glass protective film through the elasticity of the first spring, and the glass protective film is prevented from loosening in the winding process.

The utility model belongs to the technical field of environment-friendly long-life wires, and discloses an environment-friendly long-life low-smoke halogen-free cotton covered wire, which comprises a protective sleeve, an insulating layer is arranged in the protective sleeve, a wire is arranged in the insulating layer, and mounting frames are arranged on the upper side and the lower side of the protective sleeve. Balls are transversely embedded in the mounting frame at equal intervals, sliding pipes are slidably connected to the surfaces of the balls, and mounting assemblies are fixedly mounted at the two ends of each sliding pipe. The protective sleeve has excellent wear resistance, can reduce damage to insulation when a cable penetrates through a pipe and is laid, effectively reduces the risk of latent short circuit accidents, has excellent oil resistance, liquefied gas corrosion resistance and coal gas corrosion resistance, effectively improves the reliability of the cotton covered wire and prolongs the service life of the cotton covered wire, and the insulating layer can protect the wire in the protective sleeve, so that the service life of the cotton covered wire is prolonged. And static electricity caused by friction between the wires is reduced, and the service life of the wires is prolonged.

The invention discloses a preparation method and application of a modified oxygen-vacancy-rich 3D printing zero-valent iron catalyst, firstly, gelation of a surfactant is utilized, ferric oxide organic gel is deposited on the surface of zero-valent iron powder to form modified zero-valent iron powder, then triethanolamine and the modified zero-valent iron powder are mixed, and the modified zero-valent iron catalyst is obtained. According to the preparation method of the modified oxygen-vacancy-rich 3D printing zero-valent iron catalyst, the materials are continuously subjected to integrated physical and chemical modification through wet ball milling treatment, the modified oxygen-vacancy-rich 3D printing zero-valent iron catalyst is finally prepared, the whole technological process is simple, secondary pollution is avoided, waste of heat energy is reduced, and cost is saved. And the prepared material can be used as a catalyst to adsorb and combine with hydrogen persulfate by using rich oxygen vacancies, so that efficient degradation of organic pollutants is realized, and the material has industrialization prospects.

The application discloses a filling metering device, which comprises a discharging mechanism, a metering assembly, a blanking channel and a discharging channel. The metering assembly is arranged in the discharging mechanism, the discharging mechanism can be lifted along the metering assembly, so that the material in the discharging mechanism enters the metering channel of the metering assembly, the blanking channel is located between the metering channel and the discharging channel, and the blanking channel can be horizontally moved to be connected with or disconnected from the metering channel and the discharging channel. The application further discloses a filling metering method, which comprises the following steps: S1, the discharging mechanism is lifted, so that the material in the discharging mechanism enters the metering channel of the metering assembly; S2, the discharging mechanism is lowered, and the blanking channel is horizontally moved to be connected with the metering channel and the discharging channel; and S3, the material is discharged and filled from the metering channel in sequence through the blanking channel and the discharging channel. The application has the advantages of simple structure, reduced material crushing and small occupied stroke space.

The present invention provides a display panel and a preparation method thereof. Before stripping a photoresist pattern, a dense protective layer is prepared on both sides of an auxiliary layer and a grid. The material of the grid is metallic copper, and the protective layers formed on both sides of the grid are copper oxide film layers or copper oxide and copper oxyfluoride superimposed film layers. The material of the auxiliary layer is metallic molybdenum, and the protective layers formed on both sides of the auxiliary layer are molybdenum oxide film layers. The protective layer protects the grid, thereby preventing the etching solution for subsequent stripping of the photoresist pattern from further reducing damage to the grid, and at the same time reducing the risk of an undercut structure formed in the process of patterning a functional metal layer, reducing product static electricity and reducing the incidence of product black screens. At the same time, the oxygen introduced in the process of forming the protective layer can remove part of the photoresist pattern, thereby reducing the time for stripping the photoresist pattern and improving the production speed of the product.