105results about How to "Change the transmission path" patented technology

The invention provides a display substrate and a manufacturing method therefor and a display device and relates to the technical field of display. The display device comprising the display substrate can be used for effectively improving the problem of light leakage and photochromic interference. The light out-coupling efficiency and the color purity of the display device are effectively improved. The display substrate comprises a transparent substrate, a pixel defining layer formed on the transparent substrate and a light emitting layer located in a subpixel region defined by the pixel defining layer, wherein the pixel defining layer comprises a reflective layer which is protruding toward the light out side of the display substrate for reflecting the light emitted from the light emitting layer to the reflective layer to the light out side of the display substrate; in a region of the pixel defining layer, part of the light out side of the display substrate from the reflective layer is transparent. The invention further provides manufacturing methods of the display substrate as well as the display device comprising the display substrate.

The invention belongs to the field of pipes, relates to an enhanced drainage pipe and mainly relates to a superstrong-muting PE (polyethylene) core layer micro-foamed drainage pipe which is suitable for wastewater discharging, engineering transforming projects and home decoration of villa communities, high-rise residential communities, high-grade residential apartment communities and the like and industrial building fields like water discharging, sewage discharging, waste discharging and the like of industrial enterprises. The superstrong-muting PE composite drainage pipe is a multilayer composite body formed by a high-density polyethylene resin inner layer, a middle PE micro-foamed layer and a high-density polyethylene resin outer layer, the thickness ratio of the inner layer, the middle layer and the outer layer is 1:4:1, and the PE micro-foamed layer is composed of regenerated polyethylene resin powder, inorganic filler or organic filler, natural fibers, a cross-linking agent, a coupling agent, a lubricating agent, a foaming agent and an antioxidant. The superstrong-muting PE core layer micro-foamed drainage pipe has excellent denoising and muting performance, superstrong resistance to chemical corrosion and good impact resistance.

The embodiment of the invention provides a blue phase liquid crystal panel and a liquid crystal display applying the same, relates to the field of liquid crystal display technology and solves the problem that blue phase liquid crystal in the existing panel cannot be driven by a vertical electrical field to realize gray scale display. The blue phase liquid crystal panel comprises a first substrate, a blue phase liquid crystal layer and a second substrate, wherein the first substrate comprises a lower polarizer, a first quarter-wave plate, multiple substrate reflector plates, an array substrate and a pixel electrode; the second substrate comprises a common electrode, a second quarter-wave plate, an upper polarizer, and also comprises multiple middle reflector plates in the blue phase liquid crystal layer; absorption axes of the lower polarizer and the upper polarizer are in parallel with each other or perpendicular to each other; optical axes of the first quarter-wave plate and the second quarter-wave plate are in parallel with each other, and an included angle between each optical axis and a corresponding absorption axis of the upper polarizer and the lower polarizer is 45 degrees; an included angle formed by the middle reflector plates and the pixel electrode is 45 degrees, and projections of the middle reflector plates on the first quarter-wave plate are in end-to-end connection and coincide with the substrate reflector plates.

The invention discloses a micro tooth body preparation automatic cutting device in a laser-type oral cavity. The device comprises a motor driving component (1), an optical path component (2) and a shell component (3), wherein the optical path component (2) implements the optical path conversion by adopting a vibrating mirror (24), a convex lens (25) and a reflection mirror (26); through controlling the rotation of two degree-of-freedoms of the vibrating mirror (24) and the movement of one degree-of-freedom of the convex lens (25), the movement of three degree-of-freedoms of a laser focus light spot relative to a cut tooth can be realized, the optical structure principle is simple, optical elements are in space linear distribution, and occupy a small space, which is beneficial to the miniaturization of the whole device; the motor driving component (1) adopts the matching of a linear motor and a guide rod, on one hand, a spherical surface decoupling mechanism (21) is driven, thus the vibrating mirror (24) completes the rotation of two degree-of-freedoms, on the other hand, a convex lens frame (23) is driven, thus the convex lens (25) completes the rotation of one degree-of-freedom. The device has no noise in cutting process, and has little damage to the tooth near tissue, the tooth surface is smooth after cutting, and the microscopic feature is good.

The invention relates to a variable optical attenuator based on a reflecting mirror, in particular to a wavelength dependent loss (WDL) compensation variable optical attenuator capable of compensating the wavelength dependent loss by adjusting the optical waveguide position. In a reflecting variable optical attenuator (VOA) system, through adjusting the position of the input optical waveguide on an input surface and the position of the output optical waveguide on an output surface, the transmission path of the light beam containing different wavelength components in a lens, chromatic dispersion generated by the lens self is increased, and the wavelength dependent loss (WDL) is compensated.

The invention discloses a light distribution method of a vehicle brake lamp. The light distribution method of the vehicle brake lamp is characterized by comprising an LED light source and an inner light distribution mirror; a discrete material is arranged in a substrate of the inner light distribution mirror; and emitted light of the LED light source is emitted out after passing through the inner light distribution mirror. The light distribution method is adopted; and the novel discrete material is used as an auxiliary material of the inner light distribution mirror, so that output light rays are scattered more uniformly, bright and dark areas formed on the surface of the inner light distribution mirror after lightening can be effectively weakened and eliminated, the illumination is uniform and beautiful, and the internal structure and light source selection is wider and more various.

The invention provides a liquid crystal module which comprises a light guide plate, light-emitting diode (LED) lamp bars and cooling fins used for cooling the LED lamp bars, wherein the LED lamp bars are arranged on the periphery or on two sides of the light guide plate. The liquid crystal module is characterized in that included angles between the LED lamps on the LED lamp bars and a bottom plane of the light guide plate are smaller than 90 degrees. According to the liquid crystal module, the included angles between the LED lamps on the LED lamp bars and the bottom plane of the light guide plate are adjusted to be smaller than 90 degrees, a transmission path of light in the light guide plate is changed by changing an angle of the light of the LED lamp entering the light guide plate, the problem of light leakage on the incidence light side of the liquid crystal module in a narrow-frame liquid crystal television is effectively solved, so that on the premium that the assembly process of an existing liquid crystal module is not changed, manufacture cost is also not increased, and the liquid crystal module has high practicality.

The invention discloses a method for regulating and controlling a sound wave propagation path through boundary interception. A plurality of rigid scatterers are regularly distributed in a two-dimensional plane of a matrix, primitive cell geometry and wave vector symmetry are broken by changing geometrical parameters, a Dirac cone at a boundary point of a Brillouin region is opened, a new band gapis generated, and therefore a propagation path of sound waves is regulated and controlled. According to the invention, boundary interception is adopted to regulate and control a sound wave propagationpath, and particularly, segmented regulation and control of sound waves in a band-gap frequency range can be realized on the same formed boundary by determining the specific position of interceptionon the basis of early research, that is, a filtering effect is realized. The boundary interception mode of the invention provides a new scheme for sound wave regulation and control, so that more options are provided for sound wave regulation and control.

A high-efficiency low-noise axial flow fan mainly solves the technical problems that an existing axial flow fan is low in efficiency, high in noise and the like. According to the technical scheme, the high-efficiency low-noise axial flow fan is characterized by comprising a main fan body (2), a radial annular inlet (outlet) air muffler device (1) and a muffling diffusion cylinder (4), wherein the two ends of the main fan body (2) are connected with the radial annular inlet (outlet) air muffler device (1) and the muffling diffusion cylinder (4) respectively. A cylindrical housing (209) of the main fan body (2) and a motor housing (215) form an airflow passage. The inner wall of the motor shell (215) is provided with an axial rib plate or a fan-shaped block to support a stator (205). The outer diameter of the motor housing (215) is consistent with the diameter of a hub of an impeller (216), the diameter of an inner cylinder of a front muffler and the diameter of an inner cylinder of a rear muffler. The two ends of the motor housing (215) are basically flush with one end of a main fan body housing. A flange fixing a rotator and an end cover are arranged on the inner side of the motor housing (215). Accordingly, resistance loss is reduced. An air inlet (outlet) flow passage is designed to be of a gradual-shrinkage structure and a gradual-expansion structure, so aerodynamic performance and efficiency are improved; by the adoption of the radial annular inlet (outlet) air muffler device and the main fan body housing muffling structure combining multiple mechanisms, the purpose of noise reduction is achieved. The high-efficiency low-noise axial flow fan can be widely applied to ventilation on various occasions such as mines, tunnels, industries and enterprises.

This invention discloses a dynamic steering routing algorithm based on ''package-circuit'' switching technology. The dynamic steering routing algorithm is characterized in being applied to the link establishment stage of the ''package-circuit'' switching technology, can select a proper route to transmit data according to information, such as traffic distribution, congestion situation and the like, in a network-on-chip, and is a self-adaptive algorithm. According to the port usage of a current routing node and a downstream routing node, the algorithm selects a congestion-free routing node to realize dynamic steering route; thus, the probability of network congestion can be reduced; the data stream can be distributed in the network evenly; and then, the network resource can be utilized adequately, and the performance of the system can be improved. At the same time, the success rate for establishing the link can be improved, so that the link is prevented to be established and cancelled for many times during the link establishing process; and thus, the power consumption of the network and the system can be reduced.

The invention provides an LED epitaxial layer with a new-type PSS structure. The LED epitaxial layer comprises a patterned sapphire substrate, a U type GaN layer, an N type GaN layer, an MQW active layer and a P type GaN layer which are set in sequence. The patterned sapphire substrate comprises a substrate material and substrate patterns which are arranged on the substrate material according to an array. The substrate patterns are cones. Bottom diameters of the cones are 1.5-3.5um. Heights of the cones are 0.8-2.5um. Each cone comprises a PSS film layer and a substrate material convex structure which are set up and down or only comprises the PSS film layer. A material of the PSS film layer is combined by one or more of silicon oxide, silicon nitride, aluminium nitride and silicon oxynitride. An aluminium nitride film layer is also set between the patterned sapphire substrate and the U type GaN layer. The invention also provides a preparation method for the LED epitaxial layer. According to the LED epitaxial layer and the preparation method, through setting of a PSS substrate of a composite material, total reflection of light is improved and light extraction efficiency of a chip iseffectively improved.

The invention relates to a fiber composite material imitating the structure and function of scales of coelacanth. According to the fiber composite material, a double-spiral arrangement structure imitating the scales of coelacanth is adopted and is formed by sequentially and alternately laying at least two groups of spiral fiber resin layer structures; in each group of spiral fiber resin layer structure, the fiber resin layers are periodically laid and arranged by sequentially rotating the same rotation angle from top to bottom by taking a center line vertical to the centers of the fiber resin layers as an axis; and the fiber resin layers in each group of spiral fiber resin layer structures are sequentially and alternately laid and stacked. The fiber composite material has the double-spiral fiber arrangement structure imitating the scales of coelacanth, so the fiber layer structures with higher toughness compared with a traditional fiber composite material are obtained, shearing force borne by the fiber composite material can be well resisted, and structural toughness is enhanced.

The invention discloses a handwriting positioning method for an ultrasonic wave pen. The ultrasonic wave pen emits an ultrasonic wave signal; the ultrasonic wave signal is subjected to spreading path change through diffraction and is then transmitted to at least two ultrasonic wave receivers; the ultrasonic wave receivers transmit the received ultrasonic wave signal to a main controller unit; before the writing of the ultrasonic wave pen, the ultrasonic wave signal sent by the ultrasonic wave pen forms a cursor directing point on a writing board; and during the writing by the ultrasonic wave pen, the main controller unit controls the ultrasonic wave pen to display the handwriting on the writing board. The method has the advantages that the thickness and the side frame width of an ultrasonic wave pen writing device can be reduced, and the goals of light weight, thin appearance and no side frame of the device are achieved.

The invention discloses a semi-permeable floating breakwater which comprises a trapezoid breakwater body, and the cross section of the trapezoid breakwater body is trapezoid. Slope surfaces of the trapezoid breakwater body are each provided with a plurality of grooves. A pair of first wave walls is arranged on the trapezoid breakwater body. A second wave wall is arranged between the first wave walls and connected with one of the first wave walls through a cross support. According to the semi-permeable floating breakwater, by means of the trapezoid breakwater body, wave propagation reversing can be achieved, the resistance of the lower layer zone of a water body is increased gradually, the propelling speed is decreased, wave crests incline forwards, balance is lost accordingly, and waves are crushed on the breakwater; and after the grooves are additionally formed in the surfaces of the breakwater body, the waves climbing the slopes are crushed, and energy dissipation caused by crushing can reduce the propagation ability of the waves.

The invention discloses a silicon optoisolator. The silicon optoisolator is that a first target waveguide section is used for performing non-reciprocal phase shifting for a second beam split signal while transmitting from a second branch of a first branch coupler to a second port of a first directional coupler; a second target waveguide section is used for performing non-reciprocal phase shifting for a first beam split signal while transmitting from a fourth port of the first directional coupler to the second port of a second directional coupler; a third target waveguide section is used for performing non-reciprocal phase shifting for the second beam split signal while transmitting from a third port of the first directional coupler to the first port of the second directional coupler; a fourth target waveguide section is used for performing non-reciprocal phase for the first beam split signal while transmitting from the third port of the second directional coupler to a reciprocal phase shifter; the reciprocal phase shifter is used for performing reciprocal phase shifting for the first beam split signal passing through the reciprocal phase shifter. With the adoption of the silicon optoisolator, the magnetic field distribution area can be effectively reduced, and thus the utilization efficiency of a magnetic field can be increased. The expression of phase shifting each time is shown in the specification.

Disclosed in the invention is a loudspeaker of a headset. The loudspeaker comprises a support frame, a magnetic circuit system, and a vibrating system, wherein the magnetic circuit system and the vibrating system are accommodated into the support frame. The magnetic circuit system is a ring-shaped magnetic circuit formed by a T iron, an annular magnet and an annular washer; and the annular washer and the T iron form an annular magnetic circuit gap. The vibrating system consists of a vibration membrane, a voice coil, and a gasket; the voice coil is attached to the vibration membrane and is suspended in the annular magnetic circuit gap; and the gasket is arranged on the upper end surface of the T iron. The vibration membrane is arranged above the magnetic circuit system and the edge of the vibration membrane is fixed on the support; and the middle part of the vibration membrane is fixed on the gasket. According to the technical scheme, because the e middle part of the vibration membrane is fixed on the gasket above the T iron, the strength of the root part of the vibration membrane is enhanced, so that the upper limit of the high-frequency replaying and the width of the relaying frequency band of the loudspeaker of the headset are improved and distortion caused by segmentation vibration is reduced.

The invention provides a transportation component, a suspension transmission system and an electroplating line. The transportation component comprises a rack, two circulating transmission devices andat least one hanging tool, wherein the hanging tool is located between two circulating transmission devices, each hanging tool comprises a pendant and two sets of matching parts, and the two sets of matching parts are respectively arranged at two sides of the pendant; the matching parts are correspondingly arranged on the circulating transmission devices in a linkage mode, a double-side bridge type structure is formed through the two circulating transmission devices, and the hanging tool is connected to the double-side bridge type structure in a spanning mode. Two circulating transmission devices drive the hanging tool to operate, and therefore stress on the two sides of the hanging tool is balanced, and operation is more stable. Meanwhile, single-side stress concentration of a single circulating transmission device is avoided, and the service life of the transmission component is prolonged.

The invention discloses a dual-glued axicon and method for generating a long-range high-resolution bessel beam. The dual-glued axicon comprises a positive axicon and a negative axicon; the refractiveindex of a material of the positive axicon is greater than that of a material of the negative axicon, and the refractive index of the material of the negative axicon is greater than that of a spatialmedium outside the dual-glued axicon. By building the dual-glued axicon structure and using a refractive index difference between the two materials used for the positive axicon and the negative axiconwhich form the dual-glued axicon, the dual-glued axicon effectively changes a transmission path of an incident planar wave, can increase the maximum transmission distance of the generated bessel beamby multiple magnitudes, can be applied to long-range high-resolution imaging and detection, and has important actual application significance.

The invention discloses an LED graphic optimized packaging substrate provided with inverted conical groove patterns. The radius of the bottoms of the inverted conical grooves ranges from 0.3 to 1mm, the incline angle of the inverted conical grooves ranges from 45 to 75 degrees, and the distance between the centers of the inverted conical grooves ranges from 0.5 to 1mm; a silver layer is planted on the horizontal surface and the surfaces of the inverted conical grooves of the packaging substrate. The invention further discloses an LED packaging member with the graphic optimized packaging substrate and a manufacture method thereof. Compared with the prior art, the substrate has the advantages that the direct emitting opportunity is provided for fully reflected light, and the light emitting efficiency is improved by 13.5% around.

An embodiment of the invention discloses an electromagnetic wave signal processing device. The electromagnetic wave signal processing device comprises a fixing device, a controller, a frequency converter and a noise reducer, at least four electrode plates electrically connected with the controller are arranged on the inner side of the fixing device, and each electrode plate is electrically connected with any one attribute end of a receiving end, a transmission end and a grounding end by the controller. The frequency converter controls the transmission end to transmit electromagnetic wave signals of different frequencies into skull by the electrode plates, two of the electrode plates electrically connected with the receiving end receive the electromagnetic wave signals and the noise reducer is used for reducing noise of the electromagnetic wave signals.

The invention discloses a double glue axis cone mirror and method for generating a long-distance high-resolution Bessel beam. The double glue axis cone mirror comprises a positive axis cone mirror body and a negative axis cone mirror body. The refractive index of a material of the positive axis cone mirror body is greater than the refractive index of a material of the negative axis cone mirror body, and the refractive index of the material of the negative axis cone mirror body is greater than the refractive index of a space medium outside the double glue axis cone mirror. According to the double glue axis cone mirror and method for generating the long-distance high-resolution Bessel beam, the propagation path of the incident plane wave is effectively changed by constructing the structure of the double glue axis cone mirror and simultaneously matching the refractive index difference between the two materials used by the positive axis cone mirror body and the negative axis cone mirror body which form the double glue axis cone mirror, the farthest transmission distance of the generated Bessel beam can be increased by a plurality of orders of magnitude, the double glue axis cone mirrorcan be applied to remote high-resolution imaging and detection, and very important practical application significance is achieved.

The invention provides head-up display equipment. The head-up display equipment comprises an image source, a shading structure and one or more reflecting elements, wherein the image source is used foremitting imaging light and emitting the imaging light to the reflecting element; the reflecting element is arranged on a propagation path of the imaging light and is used for reflecting the imaging light and reflecting the imaging light to an external imaging device; and the shading structure is arranged at a light outlet, the image source or at least one reflecting element, and is used for blocking the light transmitted to the image source or the reflecting element when receiving the shading signal. According to the head-up display equipment provided by the embodiment of the invention, the shading structure is arranged in the head-up display body; under normal conditions, the shading structure does not affect normal imaging of the head-up display equipment; when shading is needed, the shading structure can block an external light path or change an imaging light path to prevent external light from directly entering the image source, and the image source can be prevented from being burnt out due to too strong external light.

The invention provides a production line. The production line comprises a plurality of hangers, a hanger transfer system and work sections disposed along the hanger transfer system. The hanger transfer system comprises guide parts arranged on the two sides of the running path of the hangers in parallel, and the guide parts on the two sides form a bilateral bridge-type structure; and each hanger comprises a hanging part and matching parts symmetrically arranged on two sides of the hanging part, and each hanger is connected to the bilateral bridge-type structure through the matching parts and issuitable for running in the working sections along the guide parts. The hangers are suitable for fixing to-be-processed parts, in the running process of the hangers, the hangers run on the bilateralbridge-type structure, the two sides of the hangers are symmetrically supported on the bilateral bridge-type structure, the hangers are always stressed and balanced, the electroplating uniformity is improved, and the faults such as plate clamping, tooth jumping caused by tilting of one sides of the hangers are avoided.

The invention provides a motor fan housing which is arranged at a rear end cover of a motor. A plurality of lugs are uniformly distributed on the outer circumference of the rear end cover. The motor fan housing includes a fan housing cylinder. A circular truncated cone shaped deflector shield is coaxially arranged in the fan housing cylinder. The large-diameter end of the deflector shield is connected with the rear end of the fan housing cylinder. A fan is coaxially arranged in the deflector shield, and the rotating shaft of the fan is coaxially connected with the motor shaft. The front end of the fan housing cylinder is coaxially sleeved with a flange which is fixedly connected with the outer circumference of the fan housing cylinder. The front end face of the flange is adhered to the rear end faces of the lugs, and the flange and the lugs are connected through rabbet fit. The coaxiality between the fan housing cylinder and the fan is ensured. Vortex flow is avoided. The efficiency of the fan is improved. The motor cooling capacity is improved. The ventilation noise is reduced.

The invention, which belongs to the technical field of photoelectric detection, discloses a large-view-field imaging device comprising a surface microstructure, a substrate layer, a buffer layer, a pixel array and a passivation layer. The pixel array comprises at least one pixel unit, and each pixel unit comprises an n + type doping layer, an absorption layer and a p + type doping layer; an n + type electrode penetrating through the passivation layer is led out from the buffer layer of the substrate layer, and a p + type electrode penetrating through the passivation layer is led out from the p + type doping layer; the surface microstructure can change the transmission path of light, so that incident light signals are converged through the focusing effect of the surface microstructure, the converged light signals are transmitted to the pixel array to generate photo-induced electron hole pairs capable of freely moving, and electric signals are formed under the application of bias voltage. The large-view-field imaging device has the advantages of being large in imaging view field, small in pixel unit size and the like, and the pixel units can be applied to visible light imaging, infrared imaging and ultraviolet imaging according to different materials.

The invention belongs to the technical field of wireless energy transmission, and provides a controllable intelligent surface auxiliary energy transmission device and a transmission method thereof. Firstly, all the receiving terminals transmit orthogonal pilot signals, and each controllable intelligent surface estimates channel information from all the receiving terminals to the controllable intelligent surface; all the controllable intelligent surfaces send orthogonal pilot signals, and the energy station can estimate channels from all the controllable intelligent surfaces to each antenna ofthe energy station; secondly, all the controllable intelligent surfaces and the energy station exchange large-scale channel information, and the controllable intelligent surfaces calculate required phase angles and precoding coefficients required by the energy station by using the estimated channel information; and finally, the energy station radiates signals to the controllable intelligent surface by using the constructed precoding, and all receiving terminals collect energy. According to the invention, the controllable intelligent surfaces are used to change the transmission path of the signal, and energy transmission of the user is shielded.

The invention provides a LoRa router for optimizing a LoRa Internet-of-Things system. The router preprocesses the LoRa data generated by a sensor in the Internet of Things, converts the LoRa data intoTCP / IP data matched with a conventional network, encrypts the TCP / IP data, and coordinates the working states of different function modules in the router so that different gateways in the LoRa routercan transmit the data in parallel at the same time to improve the data transmission efficiency of the LoRa router. Compared with the traditional Internet of Things, the LoRa router greatly shortens the data transmission time, can reduce the data transmission power consumption of the Internet of Things, improve the data transmission security of the Internet of Things, dynamically adjusts the the access number of node devices, and is suitable for construction and deployment of the large LoRa Internet of Things.

The embodiment of the invention provides a blue phase liquid crystal panel and a liquid crystal display applying the same, relates to the field of liquid crystal display technology and solves the problem that blue phase liquid crystal in the existing panel cannot be driven by a vertical electrical field to realize gray scale display. The blue phase liquid crystal panel comprises a first substrate, a blue phase liquid crystal layer and a second substrate, wherein the first substrate comprises a lower polarizer, a first quarter-wave plate, multiple substrate reflector plates, an array substrate and a pixel electrode; the second substrate comprises a common electrode, a second quarter-wave plate, an upper polarizer, and also comprises multiple middle reflector plates in the blue phase liquid crystal layer; absorption axes of the lower polarizer and the upper polarizer are in parallel with each other or perpendicular to each other; optical axes of the first quarter-wave plate and the second quarter-wave plate are in parallel with each other, and an included angle between each optical axis and a corresponding absorption axis of the upper polarizer and the lower polarizer is 45 degrees; an included angle formed by the middle reflector plates and the pixel electrode is 45 degrees, and projections of the middle reflector plates on the first quarter-wave plate are in end-to-end connection and coincide with the substrate reflector plates.

The invention discloses a production process of silicon-based sunscreen and heat-insulation powder, and relates to the field of paints.The silicon oxide-based sunscreen and heat-insulation powder is prepared with water glass as a silicon source through a sol-gel method; SiO2 hydrosol is obtained after the water glass is treated with ion exchange resin, and SiO2 gel is obtained by adding a base catalyst and gelling; aging, surface modification, drying, heat treatment and other processes are performed to obtain dry gel coarse powder; and air jet pulverization is performed to obtain aerogel microparticles. In the process, boric acid, calcium chloride, aluminum chloride and zirconium oxychloride are used as raw materials and are doped into SiO2, so that the problems that the heat conductivity coefficient of a nano silicon oxide heat insulation material is sharply increased along with temperature rise and the heat insulation capacity at high temperature is greatly reduced are solved; and doped SiO2 is modified by using a modifier, and a large amount of hydroxyl groups on the surface of the doped SiO2 are eliminated, so that the doped SiO2 can be more easily dispersed in the coating, and the sunscreen and heat insulation effects are further improved.