1340results about How to "Achieve transfer" patented technology

The invention discloses a government services cloud access control method based on attribute encryption. A central authority determines all attributes of a system, permits or revokes attribute authority management authority, and authenticates administrative staff; an attribute authority receives the login of administrative staff in the jurisdiction thereof and is simultaneously responsible for attribute revocation of the administrative staff; a cloud server stores data and carries out semi-decryption on an encrypted file when a user sends out a data request; a data uploader makes an access control strategy according to the security level of the file, and encrypts and uploads the file after name signing; and an access user sends out a data access request and finally decrypts the encrypted file. By adopting the attribute encryption scheme, the loads caused by user attribute revocation and encrypted file updating are reduced, the trap door information capturing of the user is controlled, and attribute revocation is carried out on the user under the condition that the encrypted file is not changed; in addition, by utilizing the name signing and attribute encryption scheme based on the identity, the safety authority of the user and fine-grained access control are realized.

The invention discloses a flexible display panel and a flexible display device, and relates to the technical field of display. The flexible display panel comprises a flexible substrate, a flexible display part and an electrostatic shielding layer, wherein the flexible display part is arranged on a first surface of the flexible substrate, the electrostatic shielding layer is arranged on a second surface of the flexible substrate, a part, at least arranged on a bending region of the flexible display panel, of one side, deviating from the flexible substrate, of the electrostatic shielding layer is of a first wrinkled structure, the first wrinkled structure comprises at least one first wrinkled bulge, and a protruding direction of the first wrinkled bulge deviates from the flexible substrate. The part, at least arranged on the bending region of the flexible display panel, of one side, deviating from the flexible substrate, of the electrostatic shielding layer is of the first wrinkled structure, the electrostatic shielding layer is arranged at the wrinkled structure of the bending region and can be used for transferring and releasing an external force when the bending external force with a certain stretching trend or compression trend is applied to the electrostatic shielding layer, and the electrostatic shielding layer is prevented from being broken or a functional film layer of the flexile display device is prevented from being damaged after bending for many times.

The invention relates to a method and a system for realizing the transfer of the control authority in multimedia conferences. The method comprises: a network side receives a request which is sent by a host terminal which applies for switching the host; the request applying for switching the host contains information of the conference member terminal being designated as the new host terminal; the network side modifies the parameter of the venue authority of the conference member terminal being designated as the new host terminal to be the identification of the host according to the informationof the conference member terminal being designated as the new host terminal; and therefore, the transfer of the control authority in the multimedia conferences is realized and an orderly process of the multimedia conferences is guaranteed. The system comprises a request message receiving module and a venue authority parameter setting module and can carry out the method for transferring the control authority of the multimedia conferences and realize the transfer of the control authority in the multimedia conferences.

The invention discloses a cross-chain digital asset transfer method. By forming a plurality of logical chains on a physical blockchain, a transaction order of each logical chain has a corresponding identifier, so that different logical chains record different types of digital assets, and free transactions can be carried out within the logical chains. At the same time, when a cross-chain transaction is carried out, by constructing a cross-chain transaction order, the input of the cross-chain transaction order includes identifiers of two or more different types of digital assets (different typesof unspent output), and the output of the cross-chain transaction order includes an address for receiving corresponding assets on different logical chains. In this way, according to the cross-chain transaction order, cross-chain joint account transfer is constructed. Therefore, by verifying the cross-chain transaction order and recording the cross-chain transaction order on the physical blockchain, digital asset exchange and transfer across logical chains can be achieved.

The invention provides a zinc negative electrode with a zinc ion conductivity interface modification layer, a battery and a preparation method, and belongs to the field of aqueous zinc battery metal zinc cathodes. The preparation method comprises: in air atmosphere, pre-constructing an interface modification material M on a base membrane; in a soaking environment by a wetting liquid, the interfacemodification material M layer on the base film being in close contact with the metal zinc to form the short-circuit primary battery, and the contacted interface modification material M and the metalzinc having spontaneous redox reaction, to make the interface modification material convert to ZnxM with zinc ion conductivity from M, meanwhile, transferring the interface modification material layerto the surface of the metal zinc negative electrode from the base film, and finally, obtaining the metal zinc negative electrode with the ZnxM interface modification layer with zinc ion conductivityon the surface. The ZnxM interface modification layer with the zinc ion conductivity can effectively inhibit dendritic crystal growth of a zinc negative electrode during charging and discharging of azinc battery, so that the interface stability of a metal zinc negative electrode is improved, and meanwhile, the cycling stability of a water-based zinc battery is improved. The method is simple and has a good actual effect.

The invention discloses an intelligent warehousing system which comprises a warehousing system and a transferring system. The warehousing system has modularization characteristics, a plurality of warehousing units which are stacked together can be spliced to be in different shapes at will so as to adapt to irregular warehousing spaces of workshops, each warehousing comprises a stacking support, parallel roller supports are arranged on the left and right sides of each stacking support, and a rotating roller is arranged between every two corresponding roller supports in a spaced manner and is provided with a warehousing driving mechanism; the transferring system comprises a transferring rail and a transferring walking trolley, the transferring walking trolley is provided with a transferringmechanism, the transferring mechanism comprises a stand column fixedly installed on the transferring walking trolley, the stand column is provided with a sliding barrel in sliding fit with the stand column, and a lifting mechanism is arranged on the stand column; the sliding barrel is fixedly provided with a transferring unit, the transferring unit comprises a transferring base which is provided with a cargo carrying plate, and a cargo carrying driving mechanism is arranged on the transferring base; and a conveyor belt mechanism is arranged on the cargo carrying plate. The invention further discloses a digital twinborn visualization sense control system.

The invention relates to a natural converting type hybrid high-voltage DC circuit breaker, and belongs to the field of DC circuit breakers applied to DC transmission distribution networks. The circuit breaker is formed by connecting a plurality of completely the same high-voltage DC circuit breaker modules in series though a disconnecting switch; each high-voltage DC circuit breaker module is on the basis of the natural converting type hybrid DC circuit breaker; each circuit breaker module comprises a main current branch, a main circuit breaker branch, an overvoltage protecting and energy absorbing branch and a measuring control system; the three branches are interconnected in parallel and are respectively connected with the measuring system; the measuring system controls the working time sequences of the three branches. According to the circuit breaker, active devices such as charging capacitor for assisting zero crossing are saved; the control is simple, the reliability is high, and the demand of domestic DC transmission network and DC distribution network on the DC circuit breaker can be met.

The invention discloses a regional load balancing method in a cellular mobile communication system, mainly solving the limitation problem that only single cell pair is considered in load balancing behaviour in an advanced international mobile telecommunication system (IMT-Advanced system). The method is mainly characterized in that 1, a load balancing scene is expanded to a region formed by multiple cells from a single cell pair; 2, through constructing a utility function, each cell in the load balancing region carries out load balancing by taking utility value maximization as a target; and 3, CIO (cell individual offset) of the cell relative to a specific adjacent cell is changed to realize switching and load transferring of a user. The regional load balancing method disclosed by the invention accords with the distributed characteristic of self-organized network architecture of the IMT-Advanced system; since a multi-cell linkage policy is adopted, system average blocking rate is effectively reduced, service quality of the users in the system and load balancing convergence rate are improved, and oscillation problem of regional load balancing is avoided.

The invention provides a graphene heating film and a preparation method thereof. The graphene heating film is characterized by comprising a first insulated waterproof layer, an electrode layer, a heating film layer and a second insulated waterproof layer, wherein the first insulated waterproof layer, the electrode layer, the heating film layer and the second insulated waterproof layer are pasted into an integral structure; and the heating film layer is a graphene film. The preparation method of the graphene heating film comprises the following steps: (1) fabricating the graphene film; (2) covering the second insulated waterproof layer with a bonding adhesive; (3) bonding the second insulated waterproof layer and the graphene film into a whole; (4) removing a metal substrate on the graphene film; (5) pasting the electrode layer on the graphene film; (6) pasting the first insulated waterproof layer on the electrode layer; and (7) connecting the electrode layer and a lead wire. According to the graphene heating film and the preparation method thereof provided by the invention, the heating efficiency is high; large-area transferring of the graphene film can be achieved; the transfer time is short; and the transfer rate is high.

The invention discloses dry heat transfer printing paper and a preparation method thereof for textiles. The method includes preparing viscous fluid with a solid content of 2-10% w / w from a high polymer thickener and a water-soluble hot melt adhesive according to a mass ratio of (1:5)-(5:1); adding assistants such as acid, alkali, an absorbent and a fixing agent into the viscous fluid according to categories of fabric and dye so as to produce a transfer substrate; and subjecting the transfer substrate to coating, drying and press polishing processing for the paper to obtain the dry heat transfer printing paper for the textiles. The paper can generate strong adhesive force on the surface under a certain temperature and pressure and can be tightly attached to the fabric. If the paper is used for printing of non-thermoplastic fabric, modified or dewing treatment is not required any more before the printing, transfer printing can be directly performed on dry-state fabric, the dye transfer stability is guaranteed, and clean and high-quality printed patterns can be obtained; and simultaneously, the processing time is shortened, waste water emission of the printing and dyeing industry is reduced, and energy saving and environment protection are facilitated.

The invention discloses a method for preparing circuits on flexible base materials, comprising the following steps of (1) preparing a graphic structure with a certain thickness on the surface of a first base material to form a circuit template; (2) depositing a conducting material on the surface of the circuit template in the form of a film to form a conducting film; (3) printing or coating an adhesive on the surface of the conducting film or the surface of a second base material; (4) spreading out the first base material on the second base material; (5) pressing and / or heating between the two base materials by adopting a transfer print method to exert the function of enable the adhesive; and (6) separating the two base materials after confirming the time so as to form the circuit graphic needed to be prepared on the surface of the second base material. According to the method, the preparation of the circuit is realized by utilizing the thickness of the circuit template, the adhesiveness of the adhesive and the appropriate adhesive force of the conducting material on the circuit template, and therefore, the processes are reduced, the cost is lowered, the efficiency is improved, and people do not need to worry about environmental pollution.

The invention provides a conveyer device for the single-chip microcomputer chip processing process, belongs to the technical field of machinery and solves the problems of unstable transportation, low transport efficiency and the like existing at each processing station when a single-chip microcomputer chip is processed. The conveyer device for the single-chip microcomputer chip processing process comprises a base; the base is provided with a rotating roller I and a rotating roller II; the rotating roller I is connected with a conveying motor; a conveyer belt is arranged between the rotating roller I and the rotating roller II and is fixedly provided with a plurality of positioning boxes; one side of the conveyer belt is provided with a rotating column; the upper end of the rotating column is fixedly provided with a lifting air cylinder; the end part of the lifting air cylinder is fixedly provided with a rotating arm; the end part of the rotating arm is fixedly provided with a vacuum chuck. The single-chip microcomputer chip is clamped and placed through the rotating arm, and is stably transported through the conveyer belt and the positioning boxes, and the efficiency is high.

The invention discloses a polymer based nanometer cone structure SERS substrate which is prepared from a polymer with a nanometer cone structure and a three-dimensional noble metal nanometer particle array; and noble metal nanometer particles are uniformly inlaid in the polymer nanometer cone structure surface. The SERS substrate has the advantages of excellent transparency, excellent flexibility, excellent uniformity, high sensitivity, light weight, foldable ability, portability and liability in treatment and can be applied to the field of in-situ detection of pesticide residues on the surfaces of vegetables and pollutants in an aqueous solution. The invention also discloses a preparation method of the SERS substrate. The preparation method comprises the following steps: preparing a conical porous alumina template by utilizing a multistep anodic oxidation method; depositing the noble metal nanometer particles on the conical porous alumina template; and copying the nanometer cone structure of the conical porous alumina template on the polymer by utilizing a nanometer imprinting technology, and transferring the noble metal nanometer particles onto the polymer to obtain the SERS substrate. The method is simple in preparation process and lower in cost and is suitable for large-scale industrial production.

The invention discloses a method for nondestructively transferring graphene from a metal surface to the surface of a target substrate. The method comprises the steps of enabling graphene to grow on the surface of metal copper; coating the surface of graphene with a PMMA film, floating a copper substrate in an etching agent solution to corrode and remove the copper to obtain a PMMA / graphene composite film; enabling a PET film with static electricity in a friction manner to approach the PMMA / graphene composite film which is floated on the liquid surface, and adsorbing the graphene / PMMA composite film on the surface of the PET film by utilizing the electrostatic effect, contacting the graphene / PMMA composite film with the deionized water, meanwhile, releasing static electricity on the surface of the PET film, separating the PMMA / graphene composite film from the PET film, and floating the PMMA / graphene composite film on the water surface; repeating the steps, washing graphene, and completely removing the copper etching agent attached to the surface of the graphene; and finally transferring the PMMA / graphene composite film to the surface of the target substrate, and dissolving and removing the PMMA on the surface. By utilizing the method, not only can the location transfer of the large-sized graphene be realized, but also the damage rate of the graphene can be greatly reduced.

The invention discloses a method for preparing an organic fertilizer by the mixed fermentation of hyacinth and dewatered sludge, which belongs to the environmental protection technical fields of innoxious processing and resource utilization of hyacinth and sludge. In the invention, the hyacinth is dewatered by squeezing and cracked, mixed with the dewatered sludge, microorganism microbial inoculum, heavy metal passivator, rice chaff or peanut shells for fermentation and aging, then matched with a certain quantity of humic acid and urea after the fermentation and aging to prepare a commodity organic fertilizer. The method not only solves the difficulty of subsequent innoxious processing of the hyacinth which absorbs the nitrogen and phosphor in the water for controling the eutrophication of a water body, and avoids the secondary pollution to the environment caused by the incorrect processing method of the hyacinth and sludge, but also produces the commodity organic fertilizer which meets the quality standard NY525-2002, thus obtaining a certain economic benefit and being more beneficial to the development of Chinese organic agriculture and the rehabilitation of environment, being capable of realizing the transferring of nitrogen and phosphor from the water body and urban sewage to farming lands and the recycling of nitrogen and phosphor, promoting the control on the water body and achieving several purposes with one measure.

The invention discloses a real-time charging optimization method for electric vehicle cluster based on clustering control, and relates to the field of real-time charging in electric vehicle cluster, which comprising the following steps of: step 1, based on a distributed layered control framework, performing a queue division on the EV cluster by taking the charging end time as a judgment amount; step 2, according to the charging characteristics of EV cluster, the queue division of EV cluster is conducted by taking the end of charging as a criterion; step 2, a real-time optimization model of charging and discharging power for EV cluster with the objective of minimizing daily load fluctuation is solved, real-time optimization of charging and discharging power of EV cluster is carried out, andsecurity constraints are checked by distribution network; step 3, on the basis of an EV cluster scheduling result, the charging and discharging costs of EV owners are considered, a power allocation model in EV cluster is solved, the optimal power allocation for charging and discharging power of a single EV in the EV cluster is obtained, so that the total output of the EV cluster is as close as possible to the scheduling result. By means of the device, EV charge and discharge distributed layered control framework is adopted, thereby realizing the real-time control of charging and discharging in EV cluster.

The present invention provides an apparatus and method for high-speed ultrasonic data acquisition. The apparatus is arranged within an ultrasonic detection system, and comprises: an acquisition interface, coupled to the ultrasonic detection system, for obtaining ultrasonic data from the ultrasonic detection system; a large-capacity buffer for holding the ultrasonic data obtained by the acquisition interface; a high-speed USB (Universal Serial Bus) controller, for transferring the ultrasonic data in the large-capacity buffer to the host computer via a USB interface.

The invention discloses a multi-time scale demand response-based concentrated hybrid energy storage synergic control method. The multi-time scale demand response-based concentrated hybrid energy storage synergic control method comprises the following steps of S1, building a user multi-type demand power utilization characteristic model; S2, building a multi-time scale demand response model; and S3,determining a synergic control strategy of a concentrated hybrid energy storage system according to the multi-type demand power utilization characteristic model and the multi-time scale demand response model. According to the method, the charge-discharge strategy of the concentrated hybrid energy storage system is made according to the charge-discharge characteristics of the storage battery and the supercapacitor, the charge state and the user multi-type demand characteristic, the clean energy absorption is facilitated, the system running quality is optimized, and meanwhile, the running economy of the concentrated hybrid energy storage system is improved.

The invention provides an authorization centralized management method, device and system. The method comprises the steps of loading an authorization certificate corresponding to target software, wherein the upper limit of authorization quantity corresponding to client types is set in the authorization certificate; receiving authority request information of an utilization authority of the target software, which is sent by a first client; determining the type of the first client according to the authority request information and acquiring corresponding first available authorization quantity according to the type of the first client; judging whether the first available authorization quantity is more than zero or not; if so, sending authorization succeeding information to the first client and granting the authority of utilizing the target software to the first client and subtracting one from the first available authorization quantity; and otherwise, sending authorization failing information to the first client and refusing to grant a request of utilizing the target software to the first client. According to the authorization centralized management method, device and system, the reasonability of carrying out authorization management on the software can be improved.

The invention discloses a dental jaw movement locus recording device and a dental jaw relationship transferring method. The dental jaw relationship transferring method comprises the following steps of carrying out digital dental jaw recurrence; extracting an optimal occlusion locus from a plurality of obtained dental jaw movement loci; driving an integral three-dimensional dental jaw by an optimal occlusion locus; and simulating the real lower jaw movement relative to an upper jaw so as to finish the transfer of the dental jaw relationship. According to the dental jaw relationship transferring method disclosed by the invention, movement loci are analyzed by a machine self-learning system based on a distance-weighted nearest neighbor algorithm so as to bring good robustness for noise in the trained movement locus data, k neighbor weighted averages are taken, the influence of an isolated noise movement locus is eliminated so as to obtain a real lower jaw movement locus, the one-sidedness for obtaining a single lower jaw movement locus is avoided, and the real lower jaw movement locus is utilized to drive the integral three-dimensional dental jaw to simulate the real lower jaw movement relative to the upper jaw so as to realize the transfer of the dental jaw relationship.

The invention relates to a method and a system for managing online transaction of virtual property of a network game, which has the main principle that a management platform which has the functions of online consignation, transfer, transaction, payment, and the like and can support a plurality of user ends is built; an adapter is arranged between the management platform and a network game operator system; and the data transaction can be carried out between the management platform and a data base of the network game operator system through a series of standardized definition made to the adapter, so that the online consignation, transfer, transaction and payment of the virtual property of the network game can be operated at the user ends.

The invention discloses a preparation method of a low stress state composite substrate for GaN growth. The preparation method comprises that a GaN monocrystal epitaxial layer is prepared on a sapphire substrate; a stress compensation layer is deposited at the back side of a thermally and electrically conductive transfer substrate of high welding point; bonding dielectric layers of high welding point are prepared at the surfaces of a GaN epitaxial wafer and the transfer substrate respectively; the GaN epitaxial wafer is bonded to the thermally and electrically conductive substrate by the high-temperature diffusion bonding technology; and the composite substrate with high temperature stability and low stress state for GaN growth is obtained. According to the composite substrate of the invention, homoepitaxy can be realized and a vertical structural device can be directly prepared as a traditional composite substrate, the low stress state and high-temperature stability can be also realized, and the quality of subsequent GaN epitaxial growth and chip preparation can be effectively improved.

The invention discloses a method for rapidly and nondestructively transferring graphene. The method comprises the following steps of: (1) coating a thermosetting adhesive or an optical curing adhesive on the surface of a target substrate; (2) attaching the surface of the target substrate, which is obtained in the step (1) and is coated with the thermosetting adhesive or the optical curing adhesive, to the graphene, thus forming a target substrate / graphene / growth substrate composite structure; (3) performing hot-press treatment or UV-irradiation curing treatment on the target substrate / graphene / growth substrate composite structure obtained in the step (2); (4) performing growth substrate stripping on the target substrate / graphene / growth substrate composite structure treated in the step (3). The large-area high-quality graphene can be transferred to the target substrate under the condition that the growth substrate is not corroded, the obtained graphene has a high single-layer property and relatively high uniformity, the pollution of organic adhesive residues and metal substrate dissolution on the graphene in the transfer process is avoided, and the growth substrate can be repeatedly used and is economic and environment-friendly.

The invention discloses a mechanization workover treatment system capable of replacing wellhead manual operation. The mechanization workover treatment system comprises a work platform system, an automatic lift sub system, an automatic makeup and breakout system, an oil pipe righting, pushing and pulling system, an oil pipe lifting system, a ground tube bank system and a control system. The lower end of the work platform system is connected with a wellhead casing spool through a flange; the automatic lift sub system and the automatic makeup and breakout system are fixed to the work platform system; the oil pipe righting, pushing and pulling system is connected to a base of the automatic makeup and breakout system through a hinge pin; the oil pipe lifting system is installed on one side of the automatic makeup and breakout system; and the ground tube bank system is arranged on any side of the oil pipe lifting system and is matched with the oil pipe lifting system to achieve transferring of an oil pipe, and the other systems are connected with the control system. According to the mechanization workover treatment system, unmanned wellhead operation is achieved; the labor intensity of a worker is reduced; the work safety is improved; and it is ensured that pipe columns are smoothly run and pulled.

The invention discloses a negative pressure system for a nozzle of an ink-jet printer and a negative pressure control method thereof. The negative pressure system comprises a negative pressure cavity, a vacuum pump, an auxiliary ink box and a control system, wherein the negative pressure cavity is connected with the vacuum pump, an air source and the auxiliary ink box through a plurality of two-position three-way valves respectively; the negative pressure cavity is also connected with a negative pressure sensor for detecting negative pressure in the negative pressure cavity; and the control system controls the open or the close of each two-position three-way valve and the power-on or the power-off of the vacuum pump according to signals fed back by the negative pressure sensor so as to control the negative pressure in the negative pressure cavity accurately, realize continuous, stable, quick and proper ink supply to the nozzle by the auxiliary ink box, and improve the working stability of the printer. The negative pressure system is also connected with an ink pressing system in series through the two-position three-way valves, and the ink pressing system comprises a pressure pump and a flow limiting valve; and when the nozzle is blocked, the nozzle is communicated with the ink pressing system by controlling the two-position three-way valves, the nozzle is dredged by ink pressing, and air is released after the ink pressing is completed so as to prevent other nozzles from dropping ink, and improve the printing quality of the printer.

The embodiment of the invention provides a transfer device, Micro-LED grains and a transfer method and relates to the field of display technology. The transfer device and the transfer method are usedfor transferring a huge quantity of the Micro-LED grains. The transfer device comprises a bearing plate, a first controller and multiple transfer heads arranged on the first surface of the bearing plate; each transfer head comprises a solenoid, wherein the two ends of the solenoid are electrically connected with the first controller through a wire, and the solenoid is used for generating a magnetic field when powered on; and the first controller is electrically connected with the solenoid in each transfer head and used for controlling the solenoid in each transfer head to be powered on or off.

The invention discloses an on-line managing method and system for virtual asset of network game, which is characterized by the following: building on-line managing platform with register, transfer, transaction and payment to support user end; establishing an accommodator between management platform and operational businessman of network game; giving a series of standardizing definition for accommodator; exchanging data between managing platform and game database of operational businessman of network game; realizing on-line register, transfer, transaction and payment of virtual asset of network game for user end.

The present invention discloses a construction method in which a steel box girder is hung on a girder bottom to be transported and is assembled by cantilevers. The construction method includes the following steps: a track is arranged on the bottom of a steel box girder; below the steel box girder, a hydraulic creeping formwork mechanism arranged under the steel box girder is utilized to transport a steel box girder to be assembled; and meanwhile, triangular hanging frames are adopted to change hanging points. The present invention provides the method for assembling the steel box girders of a low-cost bridge, which is generally used for the construction of bridges in wide and shallow rivers without navigation conditions and mountainous areas as well as the construction of bridges in rivers with ordinary navigation conditions, and the efficiency of the whole construction process is high.

The invention discloses a display panel and a manufacturing method thereof and a motherboard. The motherboard comprises an underlying substrate, a plurality of target regions located on the underlying substrate, and a piezoelectric thin film and an acoustic excitation structure which are located on the underlying substrate. The acoustic excitation structure is located in the region apart from all the target regions and is in contact with the piezoelectric thin film. The acoustic excitation structure is used for generating a surface acoustic wave under the control of a driving signal. Each target region comprises an insulating layer located on the substrate and a plurality of grooves which are used for accommodating micro light-emitting diodes and located on the side of the insulating layer away from the substrate. The piezoelectric thin film is located in the region apart from all the grooves. Each groove is internally provided with a driving electrode and a first magnetic structure. The motherboard can realize massive transfer of the micro light-emitting diodes, the manufacturing process is simple and efficient and the process cost can be effectively reduced.

The invention discloses a huge transfer printing head, a transfer printing device and a transfer method of a light emitting diode chip; the huge transfer printing head comprises a transfer printing substrate, a plurality of containing grooves which are positioned in the transfer printing substrate and are used for containing the light-emitting diode chips, electrostriction devices which are positioned on the transfer printing substrate and are located on the edges of the containing grooves, and a first electrode and a second electrode which are positioned between the transfer printing substrate and the electrostriction devices, wherein the first electrode and the second electrode are connected with the electrostriction devices, and are used for applying a first signal or a second signal tothe electrostriction devices; the electrostriction devices are used for moving towards the containing grooves under the control of the first electric signal, so as to shield the part of the openingsof the containing grooves, and moving away from the containing grooves under the control of the second electric signal so as to expose the openings of the containing grooves. According to the huge transfer printing head provided by the embodiment of the invention, a plurality of containing grooves and corresponding electroluminescent devices are arranged on the transfer printing substrate, so thatsimultaneous transfer of the plurality of light-emitting diode chips can be realized.