270results about How to "Control rotation" patented technology

The invention discloses a method of a dome camera for generating a panoramic image and the dome camera. The method comprises steps of: rotating the dome camera according to a set rule for multiple times and acquiring an image of a current position in each time of rotation; acquiring a curved image of the image in a world coordinate system according to a mapping relation between an image coordinate system and the world coordinate system; acquiring a curved image of the image in a dome camera coordinate system according to a mapping relation between the world coordinate system and the dome camera coordinate system; acquiring a flat image of the image in a panoramic image coordinate system according to a mapping relation between the dome camera coordinate system and the panoramic image coordinate system; and splicing the panoramic image according to the flat image, corresponding to the image of the current position, in the panoramic image coordinate system. The method may splice multiple images acquired by the dome camera into a panoramic image according to the one-to-one corresponding coordinate relations among the coordinate systems, wherein the panoramic image can be a 360-degree panoramic image.

The invention relates to a grinding device for metal materials for 3D printing, in particular to a rapid grinding device for metal materials for 3D printing. By the adoption of the rapid grinding device for the metal materials for 3D printing, the technical purposes of excellent grinding effect, high work efficiency and simple structure are achieved. For achieving the technical purposes, the rapid grinding device for the metal materials for 3D printing comprises a bottom plate, a left support, a right support, a top plate, first supporting rods, a collection frame, first springs, a grinding cylinder, a screen plate, a supporting base, a sliding rail, a sliding block, a rack, a second supporting rod and the like. The left support is arranged at the left end of the top of the bottom plate. The right support is arranged at the right end of the top of the bottom plate. The first supporting rods are symmetrically arranged on the left side of the top of the bottom plate. By the adoption of the rapid grinding device for the metal materials for 3D printing, the effects of excellent grinding effect, high work efficiency and simple structure are achieved, the metal materials can be ground rapidly, the work benefits are increased for enterprises, and the rapid grinding device is reasonably provided with a reinforcing rib.

The invention discloses a high-efficiency electric stirring device which can realize forward and reverse stirring and common stirring at a plurality of positions of a piece of equipment and can meet the stirring requirement of a laboratory and other aspects. The high-efficiency electric stirring device mainly comprises three major parts, which are a motor transmission and control part, a transmission part and a stirring part in sequence. The rotation speed and the rotation mode of a servo motor can be accurately controlled to realize one-time speed regulation through an external servo motor driver, then through an idler wheel flat plate stepless speed change device, secondary speed shift and transmission split are realized, six independent stirring shafts are driven to rotate, and the size of a container can be randomly selected and the depth of a material in the container can be adjusted by using a lifting table driven by a ball screw. The high-efficiency electric stirring device has the characteristics of simple structure, high efficiency, low cost and easiness in operation.

According to an aspect of the present invention, there is provided a power tool including: a motor; a driving circuit that supplies an electric power from a power supply to the motor; a control part that sets a target rotation number for the motor in accordance with a mode selected from a plurality of modes, each mode having a corresponding target rotation number; and a voltage detecting circuit that detects a voltage of the power supply, wherein the target rotation number is varied based on the detected voltage.

The invention relates to intelligent display equipment for controlling rotation of the holder of an unmanned aerial vehicle, and a control system thereof, wherein the intelligent display equipment for controlling rotation of the holder of the unmanned aerial vehicle comprises an attitude sensor, a processor and a communication module; the attitude sensor is connected with the processor; the processor is connected with the communication module; the communication module and an unmanned aerial vehicle control system communicate in a wireless manner; the attitude sensor obtains attitude information generated when the intelligent display equipment moves, and sends the attitude information to the processor; the processor obtains angular change data of the intelligent display equipment according to the attitude information, and converts the angular change data into a wireless signal; and the communication module sends the wireless signal to the unmanned aerial vehicle control system, so that rotation of the holder of the unmanned aerial vehicle is controlled. By means of the technical scheme, a camera carried on the holder of the unmanned aerial vehicle can shoot an omnidirectional aerial image; and furthermore, the intelligent display equipment is convenient to use.

The invention provides a three degree-of-freedom attitude control device, system and method of a flying car based on a ducted fan. The three degree-of-freedom attitude control device comprises the ducted fan, a first steering engine, a bracket, a second steering engine, a chassis and an integrated tail rotor-type driven wheel. The first steering engine drives the ducted fan to swing on a first axis. The second steering engine drives the ducted fan to swing on a second axis. A fist hollow hole is arranged in the bracket. The ducted fan is arranged in the first hollow hole. The first steering engine is arranged on a bracket body of the bracket. A second hollow hole is arranged in the chassis. The bracket is arranged in the second hollow hole. The second steering engine is arranged on the chassis, one end part of which is provided with the integrated tail rotor-type driven wheel capable of rotating along a third axis. The first steering engine controls the axis of the ducted fan to swing within the vertical plane where a car body moves forwards. The second steering engine controls the axis of the ducted fan to swing within the vertical plane in the direction vertical to the heading direction of the car body.

The invention relates to a three-dimensional cultural relic reconstruction system and a three-dimensional cultural relic reconstruction method based on computer stereo vision. The system is composed of a computer, a rotating platform, a digital camera and a camera support. The method comprises the steps of firstly inputting a cultural relic image into the computer, extracting feature points of the image, and establishing a matching relation; then carrying out multi-view reconstruction according to the feature points and the matching relation, and acquiring three-dimensional data of the cultural relic; and finally, carrying out texture mapping on the three-dimensional data of the cultural relic by adopting a Poisson equation, and outputting a textured three-dimensional cultural relic model. The beneficial effects lie in that (1) the method provided by the invention is simple and low in cost, and does not need additional control equipment; (2) the system provided by the invention is simple to use and convenient to operate, people only need to put the cultural relic on the rotating platform and presses a start button, and the system can output the texture indicating three-dimensional cultural relic data; and (3) the reconstruction efficiency is effectively improved.

The invention discloses a medical lying bed for examination in ear-nose-throat department. The medical lying bed structurally comprises a base, an ascending and descending rack, a fixing device, a fixing binding belt, a bed plate, a bed plate soft pad, a plum blossom knob screw nut, an arm plate, an arm plate soft pad, a head plate soft pad, a head plate, support foot pads, an ascending and descending device and a first hinge shaft, wherein the support foot pad is vertically arranged on each of the four corners of the bottom of the base in a screw bolt connection mode. The medical lying bed for examination in ear-nose-throat department has the advantages that the ascending and descending device is arranged inside the base; a step motor and a lead screw are used in a matched way for controlling the ascending and descending of the examination lying bed; the rotating movement is converted into the linear movement; the lead screw transmission precision is high; the friction resistance is very small; the creeping phenomenon of sliding movement cannot occur; the precise micro feeding is enabled to be realized; the rotation of the step motor is the operation step by step at the fixed angle, so that the accurate positioning goal is achieved; uncomfortable feeling cannot be caused on the patient; meanwhile, the rotation of the lying bed can be controlled through a second step motor.

The invention relates to a page dividing method of reading materials of electronic publication (Epub) form and a system using the page dividing method of the reading materials of the Epub form. The page dividing method of the reading materials of the Epub form comprises steps as below: obtaining address of the hypertext markup language (HTML) page of the reading materials of the Epub form, utilizing the src attribute of the IFrame of the HTML page to load the content of the reading materials of the Epub form asynchronously, building a div container to add the content of the reading materials, adding the CSS3 subfield type of the content of the reading materials inside the div container, adjusting the composing type of the content of the reading materials inside the div container, and calculating the total page number and the current page number of the content of the reading materials according to the CSS3 subfield type and the composing type to show the current page. The page dividing method of the reading materials of the electronic publication (Epub) form and the system using the page dividing method of the reading materials of the Epub form achieve fast and simple page-dividing of reading materials of the Epub form, and solve the line-pressing problem.

The invention discloses an adjustable water nozzle for oilfield water injection and a water distributor with the same, and belongs to the technical field of oilfield separate zone water injection. The adjustable water nozzle comprises a valve sleeve and a valve core, wherein the valve sleeve has a cavity structure and is provided with a water outlet hole; the valve sleeve is in threaded fit with the valve core; the valve core is in seal fit with the conical surface of the water outlet hole of the valve sleeve; the head of the valve core is provided with a side hole; a cavity is formed betweenthe valve sleeve and the valve core outside the side hole; a water inlet hole is formed in the valve core; and the tail part of the valve core is provided with a claw. The water distributor has a tube-shaped structure; the adjustable water nozzle is vertically arranged on the side of the water distributor and is communicated with the inner wall and the outer side of the water distributor; a bridge channel for water injection is formed in the wall of the water distributor; and a water nozzle adjuster for controlling the adjustable water nozzle is arranged in the water distributor. The adjustable water nozzle and the water distributor can accurately control water injection rate and are suitable to be popularized in the technical field of the oilfield separate zone water injection.

The invention relates to a vertical dust collector with a rolling brush capable of being controlled to rotate, which comprises a body, a suction nozzle, a handle, a dismountable dust collecting device, a rotating lever, movable wheels and a control mechanism, wherein the rotating lever is arranged at the back end part above the suction nozzle; the movable wheels are arranged at two sides; and the control mechanism is arranged in the front of the rotating lever and comprises a case, a driving wheel, a driven wheel, an operating rod, an adjusting slide button, a hook, a small spring and a spring, wherein the driving wheel is connected with a motor shaft in the case; the driven wheel is connected with the motor shaft through a driven wheel bearing, the driven wheel is combined with the driving wheel, a hub of the driven wheel is connected with a belt, and the other end of the belt is connected with the rolling brush; the operating rod is combined with a driving wheel bearing at the shaft part of the driving wheel; the adjusting slide button is arranged in an adjusting slide button guiding plate above the case and is connected with the upper end of the operating rod; the hook is in sliding contact with the upper surface at one end of the adjusting slide button; the small spring is installed at one end part of the hook; and the spring is arranged on the motor shaft at one side of the shaft part of the driving wheel. The rotating condition of the rolling brush can be conveniently controlled according to different needs of cleaning floors, thus not only the floors can be cleaned, but also the floors can be protected.

The invention discloses a control method of rotation of an excavator working device and belongs to the technical field of engineering machines. According to the method, at least three paths of tilt angle sensors are arranged at the rotation position of the excavator working device, two paths of pressure sensors are arranged on a bucket oil cylinder, and the sensors are connected with an excavator main controller. When an excavator rotates, the displacement travel of an operating handle is input to a control signal of the target rotating speed of the excavator main controller, meanwhile, and signals detected by the sensors are transmitted to the excavator main controller; the excavator main controller calculates the rotating inertia of the excavator according to the control signal of the target rotating speed and real-time information of the sensors, a driving signal for adjusting the torque of a driving motor is output, and stable movement of the excavator working device under different kinds of rotating inertia is controlled. Through the control method of rotation of the excavator working device, the problems that in the working process of the excavator working device, the control effect is poor, and shaking happens can be solved.

The invention discloses a top drive control system, and relates to the technical field of automatic control of petroleum drilling. The top drive control system comprises a top drive control human-computer interface, a top drive controller, a data conversion interface, a forward and reverse rotation control human-computer interface, a programmable controller, a change-over switch, a variable-frequency speed regulator, a top drive, a drill column and a position sensor, the top drive control human-computer interface is installed on the top drive controller, the top drive controller is connected with the change-over switch through a cable, and the forward and reverse rotation control human-computer interface is connected with the programmable controller, the programmable controller is connected with the change-over switch through a cable, and the top-drive controller is connected with the programmable controller through the data conversion interface; the other end of the change-over switchis connected with the variable-frequency speed regulator, and the variable-frequency speed regulator is connected with the top drive; the top drive is connected with the drill column, and the position sensor is installed on the top drive. By the adoption of the system, the static friction force of the drill column is eliminated, the drill column friction torque is reduced, and the sliding drilling speed and efficiency are improved.

The invention discloses a car rear axle differential device comprising a right semi-shaft gear, a conical gear, a lubricant collecting tank and an outer shell. The outer shell is internally provided with an input shaft gear, an input shaft is arranged below the input shaft gear, and the input shaft gear is connected with the conical gear. A lower frame is arranged on the side face of the lower end of the conical gear, a lower electromagnetic clutch is arranged at the upper end of the lower frame, and a lower connecting column is arranged at the upper end of the lower electromagnetic clutch. A lower planetary gear is connected to the end, away from the lower electromagnetic clutch, of the lower connecting column, an upper frame is arranged on the side face of the upper end of the conical gear, and an upper electromagnetic clutch is arranged at the lower end of the upper frame. The lower end of the upper electromagnetic clutch is provided with the lower connecting column, and the lower end of the lower connecting column is connected with an upper planetary gear. The car rear axle differential device has the beneficial effects that components can be lubricated, lubrication can be circularly conducted, autorotation of the planetary gears can be well controlled through arrangement of the electromagnetic clutches, and the anti-skid effect is achieved.

The invention relates to the field of spinning, in particular to fabric resin processing equipment. Many excellent properties can be given to the fabric through resin treatment of the fabric; the fabric can obtain the performances of crease resistance, shrink resistance, non-ironing property, durable pressing property, flame retardance, good gloss, comfortable hand feeling and the like; traditional treatment equipment is treated by a plurality of pieces of equipment; the automation degree and the procedure fluency degree are too low. The fabric resin processing equipment solves the problems; the fabric is put into an oscillation box filled with resin; reciprocating vibration of the oscillation box promotes resin to be fully impregnated into fabric fibers; after impregnating is finished, the fabric is enabled to pass through a rolling roller, a fabric channel and a conveying roller; a heating column is started, the heating column emits heat to promote condensation of resin among fabricfibers, the rolling roller and the conveying roller are controlled to rotate, the fabric slowly moves in a drying chamber at a low speed, the fabric falls into the cleaning chamber after being dried,and resin residues are cleared away through reciprocating forward and reverse rotation cleaning.

The invention relates to a fax machine, in particular to an internet fax machine with a dust removing function and aims at achieving the technical purpose of providing the internet fax machine with the dust removing function, wherein the internet fax machine is powerful in dust removing function and good in heat dissipation effect. To achieve the above technical purpose, the internet fax machine with the dust removing function is provided and comprises a shell, a heat dissipation net, a fixing plate, a rotation motor, a second rotating shaft, a cam, a supporting rod, a sliding rail, a sliding block, a spring, a rack, a steel ball, a bearing block, a first rotating shaft and the like. The heat dissipation net is arranged at the upper portion of the left side of the shell, the fixing plate is connected to the middle of the bottom in the shell in a welding manner, and the lower portion of the left side of the fixing plate is connected with the rotation motor in a bolt connecting manner. The internet fax machine achieves the effects of the good heat dissipation effect and the powerful dust removing function, rotation of the rotation motor is controlled, and accordingly a brush is controlled to vertically swing to remove dust on the heat dissipation net.

The invention discloses a micro power electric equipment rotating and hoisting device comprising a right-angle steel pipe frame, a moving pulley group, a rope and a drive mechanism. The right-angle steel pipe frame is composed of an upper rod and a vertical rod which are connected fixedly and is in an inverted L shape, the vertical rod is provided with a fastener, the upper portion of the tail end of the upper rod is provided with the drive mechanism, the middle of the upper rod is provided with the moving pulley group, one end of the rod is fixed to the upper rod, and the other end penetrates the moving pulley group to connect to the drive mechanism; the moving pulley group comprises five pulley lifting modules which are arranged in rows sequentially, one end of the rope of the last moving pulley lifting module is connected to a moving pulley lifting hook of the next moving pulley lifting module, and the tail end of the rope is connected to the drive mechanism. The device is small in size, is capable of being adaptive to the narrow operation environment, is capable of hoisting heavy objects on the condition that large-scale hoisting equipment is not easy to adopt and is worthy of promotion and application.

The invention discloses auxiliary equipment for boxing training teaching, and relates to the technical field of boxing training equipment. The auxiliary equipment comprises a base, an electric telescopic column is fixedly installed at the top of the base, a supporting frame is rotatably connected to one side of the electric telescopic column, a first sliding groove is formed in the supporting frame, and a lead screw is rotatably connected to the interior of the first sliding groove; a first motor is fixedly installed on one side of the supporting frame, and the output end of the first motor is fixedly connected with the lead screw. The auxiliary equipment for boxing training teaching has the beneficial effects that the hanging ball is combined with the support, the equipment is convenient to install and move, and the moving device is installed at the top of the hanging ball and located on one side of the support, so that when the hanging ball rebounds under the action of force, the hanging ball can move back and forth, the auxiliary equipment is matched with a pulley block and a motor at the top of the hanging ball, and the lifting and rotation of the boxing hanging ball are controlled, so that the real boxing condition is simulated to the greatest extent, and the reaction capability and sensitivity of a user are improved.

The invention discloses a dust remover for an electric control panel. The dust remover for the electric control panel comprises a blower, a remover body, a suction ventilator, a blowpipe and a suction pipe, wherein the suction ventilator and the blower are fixedly arranged in the remover body, one end of the suction pipe is communicated with an air inlet of the suction ventilator, a sweeping head is arranged at the other end of the suction pipe and is a trumpet-shaped sleeve, a dust blocking brush is arranged at one end with a larger opening of the trumpet-shaped sleeve, and one end with a smaller opening of the trumpet-shaped sleeve is communicated with the suction pipe. The blowpipe is arranged in the suction pipe, one end of the blowpipe is communicated with an air outlet of the blower, the other end of the blowpipe is fixedly arranged at the axis position of the sweeping head, and a filter screen is arranged on the side wall of the remover body at the position of the air outlet of the blower. The dust remover for the electric control panel can effectively remove dust on each part of the electric control panel and can suck, store and filter the dust and reduce environmental pollution.

The invention discloses a small cutting machine capable of automatically cooling down, which includes a movable block, a handle, a regulating valve, a main control box, a fixing clip, a base and a motor, and a baffle with a scale is installed above the base, and the baffle with a scale A fixed clip is installed on the right side, a movable block is installed on the left side of the fixed clip, and a movable block adjustment button is installed on the surface of the movable block, a stop button is installed on the left side of the movable block, and a main control box is installed above the fixed clip , and a handle is installed on the left side of the main control box, a regulating valve is installed below the handle, and a cutting tool is installed on the right side of the regulating valve, and a protective cover is installed on the right side of the regulating valve. In the present invention, by There are movable blocks and movable block adjustment buttons, which can fix the size of the material to be cut according to the actual operation, which enhances the functionality of the equipment. By sliding the movable block on the scaled baffle, the material needs to be cut can be adjusted. Size, in line with daily production needs.

The invention discloses a variable multi-hole perforating device and a perforating method thereof. The variable multi-hole perforating device comprises drills, a drilling plate and drill bushings. Thedrilling plate penetrates the drills to be fixed outside the drills, and the drill bushings are arranged outside the drills. Each drill comprises a first drill, a second drill and a drill middle portion, wherein the first drill and the second drill are arranged at two ends of the middle of the drill, the first drill is a straight drill, the second drill is a segmental drill and comprises a secondscrew groove and a third screw groove, and the diameter of the second screw groove of the second drill is larger than that of the third screw groove. The variable multi-hole perforating device and the perforating method thereof have advantages that by improvement of the perforating device, more drill holes can be used at the same time, and accordingly production efficiency of drill rigs is improved, time consumption is reduced, and drill rig production cost is reduced while drill performances are improved; in addition, simplicity and convenience in operation are achieved, and abrasion of drill rig components is reduced.

The invention belongs to the technical field of brushless direct current motors, discloses a brushless direct-current (DC) motor, and aims at preventing a Hall element from being damaged due to the fact that the temperature of a stator rises. The brushless DC motor comprises a shell, a motor shaft, the stator, a rotor and a magnetic steel piece, wherein a magnetic ring is fixed on the portion, outside the shell, of the motor shaft, the Hall element is mounted on the outer wall of the shell, the distance between the Hall element and the magnetic ring is shorter than an induction range of the Hall element, and the Hall element is connected with a controller. The Hall element is arranged outside the DC motor, the Hall element cannot be affected by the rise of the temperature inside the DC motor and cannot be damaged due to the rise of the temperature of the Hall element. According to the brushless DC motor, the structural mode of a traditional DC motor is broken through, a convention is broken, the Hall element is innovatively arranged outside the shell of the motor, an unexpected effect is obtained, a hard problem which is not solved in a long term is solved, operation troubles of the brushless DC motor can be reduced greatly, and reliability of the brushless DC motor is greatly improved.

The invention provides an object appearance omnibearing image acquisition device and an acquisition method. The device comprises a rotation control part, an object carrying disc used for placing a shot object and a camera supporting part used for supporting a camera, wherein the rotation control part is rotatably located below the object carrying disc, the camera supporting part is located on the periphery of the object carrying disc and fixedly connected with the rotation control part, the rotation control part rotates to drive the camera supporting part to rotate around the periphery of the object carrying disc, and the camera is installed on the camera supporting part, and the vertical height and / or the horizontal distance between the camera support part and the object carrying disc can be adjusted through the camera support part. A shot object can be placed in the object carrying disc, the camera is installed on the camera support part, the rotation control part is fixedly connected with the camera support part, and when the rotation control part rotates, the camera support part can be driven to rotate in the circumferential direction of the object carrying disc, so that panoramic shooting of the object is completed by the camera, and the shooting efficiency and definition are improved.

The invention belongs to the technical field of computer components, particularly relates to an integrated computer auxiliary support, and aims at solving the problems that an integrated computer support can adjust the backlight angle of a computer but cannot control rotation of a screen. According to the scheme of the support, the support comprises a display, three supporting rods and a control panel, wherein the top ends of the three supporting rods are fixedly connected with a disc, the top end of the disc is rotationally connected with a rotary drum, the top end of the disc is provided with a limiting ring, the limiting ring is arranged in the rotary drum, a connecting plate is fixedly connected among the three supporting rods, a motor is fixedly installed at the top end of the connecting plate, a first through hole is formed in the middle of the disc, an output shaft of the motor extends into the rotary drum through the first through hole, and a ratchet wheel sleeves the output shaft of the motor. According to the support, by arranging the motor and the rotary drum, the support can control the rotation of the display, so that one display can allow two persons to watch at the same time when the computer is used, and the adjustment is convenient.

Provided is a solar street lamp component. A base (2) is arranged at the top end of a street lamp (1). A motor (3) is arranged on the base. Direction is adjusted in a rotating mode. A solar component (4) is arranged on the base. A light ray sensing device (5) is arranged on the solar component. During using, the direction of sunlight is monitored, the motor (3) is controlled to rotate, so that the solar component is aligned with the sunlight, and the using rate of solar energy is improved. The solar component is used for storing electric energy for operation of the motor (3). A hinting device (6) is arranged and sends out hinting information when the solar component rotates by a large margin. A wind power sensing device (7) is arranged. When the fact that wind power is too large is monitored, the motor (3) is controlled to carry out evading rotating. Sunlight direction and wind power strength can be detected timely, the motor is controlled to rotate correspondingly, and the energy-saving effect of the solar component is improved.

The invention discloses an electrocoagulation forceps for dental multi-angle operation, and belongs to the field of stomatological instruments. The electrocoagulation forceps comprises an outer layerdevice, a tong head (1) and an internal power unit, the outer layer device (2) is connected with a tong head, the power unit exerts a force on the jaw head internally so that the jaw head opens and closes, The jaw head (1) is connected with a wire, and is characterized in that the end of the outer layer device is provided with a rotating seat (202) capable of rotating around the outer layer device(2), the rotating seat (202) is connected with the jaw head and drives the jaw head to swing, and the power device comprises a first pulling member (3) for rotating the rotating seat (202).

The invention discloses a control method of an upper limb rehabilitation device with a dual-direction hydraulic control function. The device comprises a microprocessor (32), a hydraulic cylinder control module (33), a power module (34) and an input module (35). The device is characterized in that the power module (34) supplies power to a rehabilitation controller (44), a user inputs the flexion-extension frequency, speed and flexion-extension strength through the input module (35), that is to say, the smaller the angle is, the curvature and the flexion-extension strength are, and the microprocessor (32) receives an input instruction of the input module (35) to transmit a working signal to the hydraulic cylinder control module (33). The control method has the advantages that through controlover the rehabilitation controller (44), the training frequency and angle can be set, the training effect and the training process can be monitored, and the user experience is improved.

The invention discloses a display device which is used for achieving the purpose of decreasing the size of a frame of the display device. The display device comprises a first substrate, a second substrate, a liquid crystal molecule, a first gate drive circuit and a second gate drive circuit. The first substrate and the second substrate are oppositely arranged, the liquid crystal molecule is located between the first substrate and the second substrate, the first gate drive circuit is arranged on the first substrate, and the second gate drive circuit is arranged on the second substrate. The first substrate comprises first pixel units which are arranged in an array mode, and thin film transistors in the first pixel units of the first row are connected with the first gate drive circuit through a gate line. The second substrate comprises second pixel units which are arranged in an array mode, and thin film transistors in the second pixel units of the first row are connected with the second gate drive circuit through a gate line. Part of the projection area of the second pixel units on the first substrate and the arrangement area of the first gate drive circuit have an overlapped area, and part of the protection areas of the first pixel units on the second substrate and the arrangement area of the second gate drive circuit have an overlapped area.