38results about How to "Reduce shading area" patented technology

The utility model relates to a solar cell printing structure and a solar cell, the solar cell comprises a substrate and a main grid layer and an auxiliary grid layer which are arranged on the substrate, the printing structure comprises a plurality of alignment structures, each alignment structure comprises a first alignment point and a second alignment point, the first alignment point and the second alignment point are arranged on a target layer, and the first alignment point and the second alignment point are arranged on the target layer. The target layer comprises a main gate layer or an auxiliary gate layer; wherein the orthographic projection pattern position, on the substrate, of the second alignment point in the same alignment structure corresponds to the orthographic projection pattern position, on the substrate, of the first alignment point, the first alignment point is used for identifying the printing position of the main gate layer, and the second alignment point is used for identifying the printing position of the auxiliary gate layer. The alignment structure is arranged on the main grid layer or the auxiliary grid layer, so that the shading area of the alignment structure can be reduced, the optical absorption of the solar cell is improved, the conductivity of the grid layer is further enhanced, the utilization rate of metal slurry can be improved while the consumption of the metal slurry is reduced, and the overall working efficiency is improved.

The embodiment of the utility model discloses a solar cell, a cell assembly and a photovoltaic system. The solar cell comprises a silicon substrate and an electrode arranged on one side of the silicon substrate, and the electrode comprises a seed layer, a first metal layer and a second metal layer which are sequentially stacked in the direction away from the silicon substrate; the width of the first metal layer is larger than that of the seed layer in the width direction of the electrode. According to the embodiment of the utility model, the photoelectric conversion efficiency of the solar cell can be improved.

The present invention provides a display substrate and a display device, which relate to the field of display technology and are for improving the transmittance of OLED display devices. The display substrate comprises: a substrate and a plurality of sub-pixels arranged on the substrate; the sub-pixels comprise: a reset signal line, an initialization signal line and a first transistor, at least a portion of the reset signal line extends along a first direction; at least a portion of the initialization signal line extends along the first direction; the gate of the first transistor is coupled to the reset signal line, the first electrode of the first transistor is coupled to the initialization signal line, and the orthographic projection of at least a portion of the first electrode of the first transistor on the substrate is located between the orthographic projection of the reset signal line on the substrate and the orthographic projection of the initialization signal line on the substrate. The display substrate provided by the present invention is used for display.

The utility model relates to the technical field of solar cells, in particular to a solar cell and a photovoltaic module. The solar cell comprises a silicon substrate, a first dielectric layer, a doped silicon carbide layer, a patterned first doped polycrystalline silicon layer and a first electrode. The first dielectric layer covers the light receiving surface of the silicon substrate. And the doped silicon carbide layer covers one surface, deviating from the silicon substrate, of the first dielectric layer. And the first doped polycrystalline silicon layer is arranged on one surface, deviating from the silicon substrate, of the doped silicon carbide layer. The first electrode is arranged on one surface, deviating from the silicon substrate, of the first doped polycrystalline silicon layer, the first electrode is in ohmic contact with the first doped polycrystalline silicon layer, and a graphical region of the first doped polycrystalline silicon layer corresponds to a setting region of the first electrode. The light-receiving surface of the solar cell has lower recombination degree and less optical parasitic absorption, and also has better passivation effect and lower transverse resistance, so that the performance of the solar cell is improved.

The application is suitable for the technical field of back contact battery, and provides a back contact battery, a battery assembly and a photovoltaic system. In the back contact battery, a first test part and a second test part for contacting probes of different polarities of a testing device are arranged on a silicon substrate. The first test part is in communication with at least part of the second fine grid through a first bus grid line, and the second test part is in communication with at least part of the first fine grid through a second bus grid line. The area of at least one first test part is smaller than the area of a first pad, and the area of at least one second test part is also smaller than the area of the first pad. Thus, due to the arrangement of the first test part and the second test part, the positive and negative probes of the testing device can form stable contact with the first test part and the second test part, respectively.

The invention discloses a vehicle and a method for controlling the vehicle, and relates to the technical field of automobiles. One specific implementation mode of the vehicle comprises the steps that an eyeball tracking camera obtains the current sight line of a driver and sends the current sight line; the vehicle camera is mounted on the outer side of the vehicle A column and is used for collecting and sending an external image of a visual blind area of the vehicle A column; the electronic control unit recognizes an obstacle based on the external image, and sends a folding instruction to the control motor of the vehicle A column when it is predicted that the future sight of the driver is shielded by the vehicle A column according to the current sight; and the control motor responds to the folding instruction and controls the multiple connecting rod structures to be folded in the width direction of the vehicle A column, so that an unshielded light path is formed between the future sight line of a driver and an obstacle. According to the embodiment, the shielding area of the sight of a driver can be reduced by adjusting the width of the vehicle A column.

The present disclosure relates to the field of photovoltaics, and provides a photovoltaic module which can at least improve the connection reliability of the cell and the solder strip, improve the performance of the photovoltaic module, and save the preparation cost of the photovoltaic module. The photovoltaic module comprises a plurality of cell strings, each cell string comprising a plurality of cell pieces arranged along a first direction and a solder strip electrically connecting adjacent cell pieces, each cell piece having a first busbar extending along a second direction, the solder strip being electrically connected to the first busbar, and the plurality of cell pieces comprising a first cell piece and a second cell piece adjacent to each other, the second cell piece being overlapped on the first cell piece. The photovoltaic module further comprises a buffer piece located on the overlapping area of the first cell piece and the second cell piece, and at least part of the buffer piece is located between the first cell piece and the solder strip; wherein, on the first cell piece, the first busbar close to the buffer piece comprises a first part and a second part in electrical contact with the solder strip, and in the first direction, the width of the second part is greater than the width of the first busbar away from the buffer piece.

The utility model provides a kind of high-resolution and light efficiency optimization type display array substrate, by optimizing metal layer wiring, i.e., gate signal line is arranged in third metal layer and is vertically overlapped with TFT gate, reduces light shielding area;Touch signal line is moved to first metal layer, improves touch signal-to-noise ratio, and data signal line is additionally provided in first metal layer, and the data signal line of second metal layer is equipotential, forms double-layer data line driving structure design, without increasing metal layer thickness, metal line width, metal material and the like, data line impedance can be reduced to original half substantially, effectively improves IC driving capability, can support 8K resolution driving at most, breaks through the problem that S-IC driving capability is insufficient due to data line load improvement under high-resolution panel dual Gate driving design.

The invention relates to the field of photovoltaic module manufacturing, in particular to an insulating glue printing screen plate for a back contact solar cell and a using method thereof.The insulating glue printing screen plate comprises a plurality of discontinuous insulating glue printing units distributed in the extending direction of a main grid, and interval areas without printing patterns are arranged between every two adjacent insulating glue printing units; forming a sectional insulating glue layer on the surface of the battery piece in the silk-screen printing process; wherein the insulating glue printing unit corresponds to an electrical isolation area on the battery piece. The solar cell can reduce the using amount of insulation paste, reduce the warping problem of the cell, reduce the back shading area, improve the double-sided rate, gain back power generation and reduce the cost.

The utility model relates to the technical field of positioning devices, in particular to a positioning device for surface layer machining. According to the technical scheme, the device comprises a bottom table, and lifting electric push rods which are symmetrically arranged are fixedly mounted at the top of the bottom table; and the left-right positioning assembly comprises a lifting block, a screw rod, a second electric push rod and a left-right positioning clamping block, the two ends of the screw rod are rotationally connected with the positioning frame, the rod body of the screw rod is in threaded connection with the lifting block, the second electric push rod is fixedly installed on the side portion of the lifting block, and the left-right positioning clamping block is fixedly installed on the end portion of the second electric push rod. The lifting electric push rod stretches out to enable the positioning frame and the foam heat preservation box to be at the same height, the second electric push rod stretches out to enable the left positioning clamping block and the right positioning clamping block to clamp and position the foam heat preservation box, the lifting electric push rod shrinks to move the positioning frame downwards, the screw rotates to enable the lifting block to move upwards, and the foam heat preservation box stretches out of the top of the positioning frame. And the shielding area of the positioning frame on the foam insulation box is reduced.

The application relates to the technical field of batteries, in particular to a battery compartment mechanism and electronic equipment. The battery compartment mechanism comprises a mounting frame, a containing cavity, and an opening in communication with the containing cavity; a battery replacement assembly arranged on the mounting frame; a limiting assembly connected with the mounting frame and the battery replacement assembly respectively; at least part of the structure of the battery replacement assembly drives at least part of the structure of the limiting assembly to shield the opening when moving away from the containing cavity; at least part of the structure of the battery replacement assembly drives the limiting assembly to reduce the shielding area of the opening when moving towards the containing cavity. The battery compartment mechanism provided by the embodiment of the application can link the taking and placing actions of the battery and the unlocking / locking operation of the battery compartment, can automatically realize locking when the battery is pushed in, and can automatically push out the battery when unlocking, so that the operation complexity is reduced, and the replacement efficiency is improved.

The invention relates to the technical field of photovoltaic electronic paste, in particular to solar cell fine grid paste and a preparation method and application thereof. The fine grid slurry comprises the following components: metal powder, glass powder, an organic carrier, a plasticizer and an organic auxiliary agent, the addition amount of the metal powder in the fine grid slurry is 80-95 wt%, the metal powder comprises nano silver powder and micron silver powder, and the weight ratio of the nano silver powder to the micron silver powder is 1: (3-10). The fine grid slurry can be smoothly printed when the opening of a full-opening steel plate is designed to be 10 microns, the problem of poor material spreading caused by the mirror surface of the full-opening steel plate is solved, the viscosity of the fine grid slurry is improved, and meanwhile the ink penetration effect of the fine grid slurry can be effectively reduced.

This invention relates to the field of antenna protection technology, and more particularly to an easy-to-install antenna protective cover. It includes: a base with a rubber pad embedded in its lower part; a protective shell rotatably connected to the base; symmetrically distributed first ventilation openings on the lower part of the protective shell; a guide rod fixed inside the protective shell; and symmetrically distributed first and second baffles slidably connected to the guide rod; a winding frame rotatably connected inside the protective shell; and a winding wheel located below the winding frame. Connecting ropes are provided between the first baffles and the winding frame, and between the second baffle and the winding wheel. This invention, by adjusting the positions of the first and second baffles, allows the gas inside the protective shell to exchange with the outside environment when the external wind speed is low. This allows the flowing gas to carry away the heat generated by the antenna, ensuring the normal operation of the antenna.

The application is suitable for the technical field of solar cells, and provides a solar cell, a battery assembly and a photovoltaic system. The solar cell comprises a silicon substrate including a doped layer, a passivation layer arranged on the silicon substrate and formed with a plurality of through holes, and a fine grid including a conductive structure and a connecting structure. The conductive structure is electrically connected to the doped layer through the through holes, and the connecting structure connects the conductive structures corresponding to two adjacent through holes. The through holes include a first hole, a second hole and a third hole arranged in sequence along a first direction. The conductive structure includes a first conductive part, a second conductive part and a third conductive part arranged correspondingly to the first hole, the second hole and the third hole. The connecting structure includes a first connecting part and a second connecting part. The first connecting part connects the first conductive part and the second conductive part, and the second connecting part connects the second conductive part and the third conductive part. The center line of the first connecting part is spaced from the center line of the second connecting part in a second direction, and the second direction intersects the first direction.

The utility model discloses an antenna installation technical field's a kind of radio frequency antenna installation integrated seat, including upper installation shell and with the lower installation shell of four bolts installation of upper installation shell, the upper installation shell top is integrally equipped with limit frame, the lower installation shell bottom is integrally equipped with mounting bracket, the limit frame inboard is installed with RTK antenna by fixed part, the mounting bracket inboard is installed with stick antenna by mounting part, the upper installation shell top and close to one side are equipped with wire slot, the stick antenna is connected between RTK antenna by SMA connector, and the upper installation shell and the lower installation shell are fixed on two sides arm by four bolts, arm is far from fuselage, avoid unnecessary electronic equipment interference, RTK antenna distance is far, without any shelter, guarantee the search star quality and pointing accuracy, the radio frequency antenna of stick antenna is the smallest sheltered area, RTK antenna and radio frequency antenna same set of fixed structure, light in weight, simple structure.

The utility model discloses a photovoltaic cell. The photovoltaic cell comprises a cell body and a plurality of fine grid lines matched on the surface of the cell body, the fine grid lines adopt metal wires; the diameter of each thin grid line is less than or equal to 20 microns, the number density of the thin grid lines in the unit length direction is 5-15 / cm, each thin grid line is fixed on the surface of the battery piece body, and the shading rate of all the thin grid lines to the battery piece body is less than or equal to 2.0%. According to the utility model, the shading area of the thin grid lines on the battery piece body is small, the cost is low, and the problem of grid breakage can be effectively prevented.

The invention discloses a battery piece and a photovoltaic module. The battery piece comprises a substrate, and the surface of the substrate is provided with an N-type doped layer, a P-type doped layer and an isolation region arranged between the N-type doped layer and the P-type doped layer; the N-type doping layer and the P-type doping layer are arranged in an interdigital manner, each of the N-type doping layer and the P-type doping layer comprises a main body part and a finger-shaped part, the main body parts extend along a first direction, and the finger-shaped parts are arranged on at least one side of the main body parts along a second direction; the finger-shaped part is provided with a current collection electrode extending along a second direction; the first insulating layer is arranged at the position, close to the main body part of the opposite conductive type, of the finger-shaped part; the first insulating layer covers the end portion of the collector electrode, and the first insulating layer and the adjacent isolation region are arranged at an interval in the second direction. The first insulating layer is utilized to play an insulating and isolating role, meanwhile, the shielding area of the first insulating layer on the surface of the substrate is reduced, and the problem of poor local connection of the interconnector caused by the fact that the interconnector is heightened due to the fact that the first insulating layer partially extends below the interconnector can also be avoided.

The utility model relates to a solar cell dense grid line structure which comprises a plurality of main grids arranged on a silicon substrate at intervals and a plurality of first auxiliary grids perpendicular to the main grids, each first auxiliary grid is provided with a plurality of disconnected spacer regions, and the spacer regions between the adjacent first auxiliary grids are arranged in a staggered mode. At least two second auxiliary grids used for forming a loop are arranged between every two adjacent first auxiliary grids, and the second auxiliary grids are parallel to the length direction of the main grids. The utility model has the effect of reducing the negative effects of opening voltage reduction, silver paste consumption increase and shading area increase caused by the increase of the number of the grid lines.

The utility model discloses an auxiliary grid screen printing plate and an auxiliary grid, which are applied to the technical field of solar cells and comprise a gauze and a photosensitive adhesive film layer attached to the gauze, the total thickness of the gauze and the photosensitive adhesive film layer is 16 [mu] m + / -2 [mu] m and comprises values at two ends; the mesh yarns are mesh knot-free mesh yarns with the wire diameter of 500 meshes and 7 microns; at least 170 auxiliary grid pattern holes are formed in the photosensitive adhesive film layer; the width of the auxiliary grid pattern hole is 12 [mu] m + / -2 [mu] m, and the auxiliary grid pattern hole comprises values at two ends; the auxiliary grid pattern holes are in one-to-one correspondence with the auxiliary grids. Compared with a conventional screen printing plate, the width of an auxiliary grid pattern is reduced, the printing line width of a solar cell can be effectively reduced, the shading area can be greatly reduced due to the reduction of the line width, meanwhile, the thickness of the screen printing plate is reduced, the ink permeability of auxiliary grid pattern holes can be effectively improved, slurry can permeate more easily, line breakage is prevented, and the grid line quality is improved; and the conversion efficiency of the battery piece can be improved.

The invention discloses a solar cell and a preparation method and device of an electrode of the solar cell, and relates to the technical field of silicon wafer half cutting. A tunnel layer on a first surface of a semiconductor substrate and a first conductive type semiconductor region on the tunnel layer contain semiconductor impurities of the first conductive type; according to the invention, through arranging the moving part, the conductive seed layer is uniformly distributed on the silicon wafer in a segmented manner, is distributed in a whole segment manner or is vertical to the fine grids, and is distributed below all the fine grids at the same time, the conductive seed layer accounts for about 30-120% of the contact area of the primary cell and the grid lines, and the silver consumption is about 25% of the original silver consumption. The back surface adopts a main-grid-free technology, the silver consumption can be effectively reduced by more than 10%, the reduction of the shading area of the back surface can improve the double-sided rate, and the main grid only plays a role in conducting current, does not generate gain to the current, but shields the absorption area of light, so that the current is reduced.

The utility model discloses a connecting mechanism for connecting photovoltaic module cells and a photovoltaic module, the connecting mechanism comprises a metal sheet for connecting adjacent cells, one side surface of the metal sheet is overlapped with the front surfaces of the cells and is electrically connected with bus bars on the front surfaces of the cells; and the other side surface of the metal sheet is overlapped with the back surface of the other battery piece and is electrically connected with the bus bar on the back surface of the other battery piece. The adjacent battery pieces are connected through the metal sheets, the metal sheets are massively produced and used in the industry, and raw materials are easy to obtain. The adjacent battery pieces are connected through the metal sheets, a welding strip does not need to be used on the light receiving faces of the battery pieces, the problems of series welding alignment deviation and shading are solved, higher output power and better reliability can be obtained through a smaller shading area, and finally the purposes of improving efficiency and reducing cost are achieved. The distance between the battery pieces is reduced, and the CTM (Cell To Module) loss is reduced on the whole.

The invention relates to the technical field of waterproof doors, in particular to an emergency electric lifting waterproof door which comprises a mounting frame, a water baffle is slidably connected between the two sides of the inner wall of the mounting frame, a sealing assembly is mounted between the mounting frame and the water baffle, and a driving assembly used for driving the water baffle to ascend and descend is mounted on one side of the inner wall of the mounting frame; the sealing assembly comprises longitudinal columns which are installed on the two sides of the inner wall of the installation frame and extend into the installation frame, a transverse column and a first semi-cylinder are fixedly connected between the two ends of the two longitudinal columns correspondingly, and the first semi-cylinder is fixedly connected with the bottom of the inner side of the installation frame. The outer side of the water baffle is fixedly connected with a semicircular frame matched with the longitudinal column, the transverse column and the first semi-cylinder, and the longitudinal column, the transverse column, the first semi-cylinder and the semicircular frame are all made of metal materials. The problems that a rubber sealing strip of an existing waterproof door can be aged after being used for a long time, so that the sealing performance becomes poor, the waterproof door needs to be pushed manually in the opening and closing process, and the closing speed of the waterproof door is difficult to accelerate are solved.

The invention discloses a TBC battery and a preparation method thereof. The method comprises the following steps: providing an N-type silicon substrate; the N-type silicon substrate comprises a front surface and a back surface; preparing a first tunneling oxide layer and a first doping layer on the back surface; forming a first region and a second region which are alternately arranged in an interdigital manner on the back surface by using a preset laser condition; removing the first tunneling oxide layer and the first doping layer in the second region, and preparing a second tunneling oxide layer and a second doping layer in the second region; performing front surface texturing on the front surface, preparing a first protection layer on the surfaces of the sides, deviating from the N-type silicon substrate, of the first doping layer and the second doping layer on the back surface, and preparing a second protection layer on the front surface subjected to front surface texturing; and performing silk-screen printing and high-temperature sintering on the first region and the second region to form a first electrode in contact with the first doping layer in the first region and form a second electrode in contact with the second doping layer in the second region, thereby obtaining the TBC battery. By using the method, the conversion efficiency of the battery is improved.

The invention discloses a preparation method of a main-grid-free solar cell, which belongs to the technical field of solar cells, and comprises the following steps: replacing a second machine and a fourth machine of a silk screen with a main-grid-free screen printing plate, and not turning on a first machine and a third machine; a TOPCon process flow is carried out; the positive and negative electrode grid lines of the solar cell piece comprise a plurality of parallel fine grid lines, and no main grid line is arranged, that is, when the grid line screen printing plate pattern is designed, no main grid line is arranged; after the grid line screen printing plate pattern is designed, the solar cell positive electrode grid line is printed on the surface of the cell positive electrode. According to the preparation method of the main-grid-free solar cell, cost reduction is achieved mainly through silver reduction, efficiency improvement, reduction of the thickness of a silicon wafer and the use amount of an adhesive film, a main grid is replaced with a welding strip, so that part of silver paste of the main grid is saved, efficiency improvement is achieved through reduction of a shading area and shortening of a current transmission path, and the module power can be improved by more than 5W; the problems of hidden cracks and grid breakage caused by welding after thinning can be solved, and breakthrough of a battery piece with the thickness within 100 micrometers can be achieved.

The invention discloses a temperature adjusting device, semiconductor process equipment and a temperature adjusting method, and belongs to the technical field of semiconductor processing. The temperature adjusting device is used for adjusting the temperature of the wafer, the temperature adjusting device comprises a shading assembly, a temperature detection assembly and a driving assembly, and the shading assembly is movably arranged between the heating source and the wafer and is used for shielding the wafer; the temperature detection element is used for detecting the temperature of the central area and the edge area of the wafer; the driving assembly is connected with the shading assembly and used for driving the shading assembly to act according to a detection signal of the temperature detection assembly so as to adjust the shading area of the shading assembly on at least one of the center area and the edge area. In the scheme, the shielding area of the shading assembly on at least one of the central area and the edge area is adjusted according to the temperature difference, detected by the temperature detection assembly, of the central area and the edge area of the wafer, it can be guaranteed that the temperatures of the central area and the edge area are the same, and therefore the wafer is prevented from deforming or jumping up from the supporting ring.

The present invention pertains to the field of solar cell technologies, and, in particular, to a solar cell photovoltaic module and a solar cell photovoltaic array. The solar cell photovoltaic module comprises a plurality of cells arranged as a matrix, light-receiving surfaces of the cells being distributed with a number of busbars and fingers, the busbars collecting current in the fingers connected thereto, and the current collected by the busbars being output through interconnecting bars communicating with the busbars. The present invention is characterized in that the cells are rectangular. The solar cell photovoltaic array comprises modules and a current collecting bar, two adjacent modules being connected by a diode or being connected by an additional dummy conductive line plus a diode. The current collecting bar and the conductive line are connected via a junction box for output. The present invention reduces current of solar cells by reducing the size of the cells, such that internal power consumption is reduced exponentially, thereby increasing generated power. Width of the busbars is also reduced.

The application discloses a dual-band multi-polarization common-aperture array antenna, and relates to the technical field of microwave antennas, comprising a low-band horizontal polarization array antenna, a low-band vertical polarization array antenna, a high-band vertical polarization array antenna and an electromagnetic surface realized by a dielectric, a copper foil sheet and a dielectric metallization structure; wherein the dielectric is a laminated structure realized by four-layer dielectric plates, and the four-layer dielectric plates are respectively a first dielectric plate, a second dielectric plate, a third dielectric plate and a fourth dielectric plate; each array antenna comprises a plurality of two-dimensionally distributed planar dipoles, and the planar dipoles of the low-band horizontal polarization array antenna are first planar dipoles; the height of the dual-band multi-polarization common-aperture array antenna is 0.12 lambda 0, less than half of the height of a conventional dipole antenna, and the radiation arm length is also shorter, so that the dual-band multi-polarization common-aperture array antenna has the characteristics of flatness and low profile compared with a conventional dipole realized by a metal rod or a metal plate.

A honeysuckle flower distillate bottle cleaning device comprises a shell, a cleaning roller is installed in the shell and driven by a driving device outside the shell to rotate intermittently, and a cleaning device is arranged at the bottom end of the shell and used for cleaning the inner wall and the outer wall of a bottle body. The cleaning roller comprises a rotating shaft, a plurality of mounting discs are fixed on the rotating shaft at intervals in the axis direction, and a plurality of bottle body supporting frames are arranged on the mounting discs in the circumferential direction; the cleaning device comprises a left spray pipe and a right spray pipe, the spray pipes on each side are divided into two sets, the two sets of spray pipes are arranged in the axis direction of the rotating shaft, a row of nozzles are distributed on one side of each spray pipe, and one set of nozzles right face bottle openings of passing bottle bodies and right face the side walls of the bottle bodies. According to the honeysuckle flower distillate bottle cleaning device, the cleaning effect can be improved.

The present invention provides a display panel and a display device, wherein the display panel comprises an array substrate and a color film substrate arranged opposite to each other, and a support column located between the two, wherein the support column comprises a main support column, and the main support column comprises a first support column; and further comprises a plurality of sub-pixel units arranged in an array, a scanning line extending along a first direction and a data line extending along a second direction, wherein the first direction and the second direction intersect, and the sub-pixel unit comprises a thin film transistor, wherein the thin film transistor comprises a gate, a source and a drain, wherein the scanning line is electrically connected to the gate, the data line is electrically connected to the source, and the sub-pixel unit comprises a pixel electrode, wherein the pixel electrode is electrically connected to the drain; and along the first direction, the orthographic projection of the first support column on the display panel is located between the orthographic projections of two adjacent data lines on the display panel, and along the second direction, the orthographic projection of the first support column on the display panel is located on one side of the orthographic projection of the scanning line on the display panel. The present invention can improve the supporting capacity of the display panel.

The invention discloses a metal net and a preparation method thereof, the metal net is of a grid structure formed by metal lines in a closed mode, the aperture ratio of the metal net is larger than or equal to 95%, the average area of all holes of the metal net is smaller than 45 mm < 2 >, and the width of the metal lines larger than or equal to 50% in the metal net is smaller than 0.05 mm. The corresponding concave grids are designed on the female die, and the electroplating process is adopted, so that metal is deposited in the concave grids to obtain the metal net; different metal nets can be obtained by adjusting the line width and the line number density of the concave grids of the female die and replacing corresponding main body metal electroplating liquid, meanwhile, a plurality of different kinds of metal can be electroplated on the metal nets through a plurality of coating metal electroplating tanks, operation is flexible, and preparation is easy.