73 results about "Green led" patented technology

The present application relates to a kind of blue-green LED epitaxial wafer and its preparation method, and the multiple quantum well light-emitting layer of blue-green LED epitaxial wafer includes gradually changing InGaN layer before well, first blue light InGaN layer, first AlGaInN interface protection layer, green light InGaN layer, second AlGaInN interface protection layer, second blue light InGaN layer, gradually changing InGaN layer after well, quantum barrier layer, and gradually changing InGaN layer before well includes multiple first InGaN layer of sequentially stacked, the In component content of multiple first InGaN layer is sequentially increased along the direction of epitaxy;Gradually changing InGaN layer after well includes multiple second InGaN layer of sequentially stacked, the In component content of multiple second InGaN layer is sequentially decreased along the direction of epitaxy. Wherein, N2 atmosphere heat treatment is needed before depositing first AlGaInN interface protection layer, and before depositing second AlGaInN interface protection layer. The present application can effectively reduce the preparation cost of LED backlight light source, active region has good recombination efficiency, and LED chip light uniformity is good.

The LED panel has multiple LED pixel units arranged in a row. Each LED pixel unit has: a normal element, including a red LED element, a green LED element, and a blue LED element; and a low-brightness element for outputting a brightness lower than the minimum brightness of the normal element.

The application discloses a high-voltage cabinet electricity detection display device. The high-voltage cabinet electricity detection display device comprises a transmitting module and a receiving module arranged in the high-voltage cabinet. The transmitting module comprises a battery pack, a starting button, an LC tuning circuit and a first yellow LED display lamp. The LC tuning circuit converts the power provided by the battery pack into a changing magnetic field, and the first yellow LED display lamp displays the working state of the LC tuning circuit. The receiving module comprises a receiving coil, a second yellow LED display lamp, a green LED display lamp, a red LED display lamp, a grounding wire and a high-voltage electrode. The receiving coil induces an electromotive force in response to the changing magnetic field. The second yellow LED display lamp displays the power state of the receiving module, and the green LED display lamp and the red LED display lamp display the electrified state of the high-voltage end. When the high-voltage cabinet electrified display device fails, the high-voltage cabinet electricity detection display device can be used as a backup electricity detection device to obtain the electrified state of the conductor.

A light emitting diode, LED, filament (1) configured to provide, in an on-state, LED filament light (2), and comprising an elongated carrier (3) comprising a longitudinal direction (LD), and a two-dimensional array of a plurality of LEDs (4) arranged on a first major surface (31) of the elongated carrier (3), and configured to, in operation, emit LED light (41). The two-dimensional array of a plurality of LEDs (4) comprises N rows of LEDs 5 and M columns of LEDs, where N ≥ 6 and M ≥ 50, and where the N rows of LEDs extend along the longitudinal direction (LD) of the elongated carrier. The two-dimensional array of a plurality of LEDs (4) has an outline having an outline width, W, and an outline length, L, W being in a range from 1 to 6 mm and L being at least 25 mm, and an aspect ratio is defined as L / W is at least 10. The plurality of LEDs comprises a plurality of X direct-emitting red LEDs 10 (4a), each comprising a red die (42a) having a first die surface area, SA1, a plurality of Y direct-emitting green LEDs (4b), each comprising a green die (42b) having a second die surface area, SA2, and a plurality of Z direct-emitting blue LEDs (4c), each comprising a blue die (42c) having a third die surface area, SA3. A coverage of the plurality of LEDs defined as the ratio of the total surface area of the red dies (42a), the green dies (42b) and the 15 blue dies (42c) to the surface area being enclosed by the outline of the two-dimensional array of a plurality of LEDs (4) is in a range from 10 to 40 %. The first die surface area, SA1, the second die surface area, SA2, and the third die surface area, SA3, each have a largest spatial extent, SE, that is less than or equal to 100 micrometers.

The invention provides an optical guiding method for recycling a deep-sea unmanned underwater vehicle, and belongs to the technical field of underwater vehicle recycling. Four blue-green LED guiding light sources are non-uniformly and annularly distributed and installed on the front end face of a recycling cage, the three-dimensional coordinates of the guiding light sources are calibrated in advance, and guiding light source images are collected in real time through a binocular camera; an adaptive exposure control technology is adopted to adjust image quality, statistical information calculation is performed on an identified light source contour, an effective guide light source target is determined through convex constraint configuration judgment and ellipse fitting screening, four guide light sources are constructed as a traveling salesman problem, and a nearest neighbor heuristic algorithm is adopted to complete number matching. A rotation matrix and a translation vector are solved through a singular value decomposition method according to the pre-measured coordinates and the real-time calculated coordinates, and collaborative optimization is carried out at the same time, so that the technical problems of insufficient optical guidance positioning precision and poor real-time performance in the recovery process of the unmanned underwater vehicle in the deep sea environment are solved.

The utility model belongs to the technical field of LED chips, and discloses a green light LED chip based on an N-type GaN layer embedded DBR structure, which comprises a substrate, and a first buffer layer, a first non-doped GaN layer, a green light MQW layer, a second non-doped GaN layer, an N-type GaN layer, a DBR layer, a second buffer layer, a third non-doped GaN layer, a blue light MQW layer, an electron blocking layer and a P-type GaN layer which are sequentially deposited on the substrate, a P electrode is arranged on the P-type GaN layer, and the DBR layer is formed by periodically and alternately laminating two dielectric materials with different refractive indexes. According to the utility model, the DBR layer is embedded between the N-type GaN layer and the blue light quantum well, downward photons are directly reflected, the light extraction efficiency is improved, the photon reflection path is shortened, the absorption loss is reduced, a low-stress growth template is provided for the blue light quantum well, the dislocation density is reduced, and the growth quality of the blue light quantum well is improved.

To solve the problem in which previously, under low brightness conditions, there were issues such as the occurrence of unpleasant flicker and the lowness of achieving certain color spaces.SOLUTION: A light emitting diode (LED) device comprises: a circuit board; a plurality of LED packages arranged on the circuit board, the LED package comprising a pair of red LEDs arranged adjacent to one another, the pair of red LEDs configured to emit respective red light at respective different red wavelengths, a pair of green LEDs arranged adjacent to one another, the pair of green LEDs configured to emit respective green light at respective different green wavelengths, and a pair of blue LEDs arranged adjacent to one another, the pair of blue LEDs configured to emit respective blue light at respective different blue wavelengths. The LED device further comprises: an integrated circuit (IC) configured to independently control the pair of red LEDs, the pair of green LEDs and the pair of blue LEDs; and an electrical connector connected to respective integrated circuits of the plurality of LED packages, the electrical connector configured to communicate with an image providing device.SELECTED DRAWING: Figure 2A

A display apparatus includes: a liquid crystal panel, a backlight unit configured to provide light to the liquid crystal panel, a quantum dot (QD) sheet arranged the liquid crystal panel and the backlight unit, and a processor configured to control the liquid crystal panel and the backlight unit. The backlight unit may include a substrate and a plurality of dimming blocks arranged in a plurality of rows and columns and each including a red light-emitting diode (LED), a green LED, and a blue LED. The processor may be configured to, based on an ON signal of an LED having a color identical to a color of QD particles of the QD sheet, control the backlight unit to turn the blue LED on together with the LED that receives the ON signal.

A computer-implemented method for converting received red green blue (RGB) video data into red green blue and fourth color (RGBF) LED drive signals is disclosed. The method may include receiving RGB video data representing a video including a plurality of frames. Each frame may include a plurality of pixels. For each pixel of each frame of the video, the RGB video data may define R, G, and B brightnesses for representing the color and brightness of the pixel. The method may also include generating an RGBF LED drive signal according to the received RGB video data. The RGBF LED drive signal may be configured for driving one or more LED modules including a plurality of LED units. Each LED unit may represent a pixel. Each LED unit may include a red LED, a green LED, a blue LED, and a fourth color LED different in color from the red LED, the green LED, or the blue LED. The generating may also include applying a control parameter to adjust a characteristic of the RGBF LED drive signal.

The LED filament lamp (1) is configured to provide light emitted from a plurality of LED filaments (2, 3, 12). The LED filament lamp (1) comprises a green LED filament (2) for phosphor conversion and a red-blue LED filament (3) for mixed direct emission. The LED filament lamp (1) comprises at least one first LED filament (2) and at least one second LED filament (3). The first LED filament (2) comprises a plurality of first blue LEDs (91) configured to emit, in operation, first LED light as blue light. When light is emitted from a blue or UV LED (91), light passes through the mixture of light green phosphor coatings, where the converted light is distributed predominantly as green light in a portion of the visible spectrum. The first LED light is converted into first converted light that is only green light. The light emitted from the second LED filament (3) may be blue light or red light, or light mixed with blue light or red light. The red-blue light emitted from the red-blue LED filament (3) stimulates the opposite blue and red receptors of the eye and the converted green light stimulates the green receptors of the eye such that the resulting mixture of the converted green light, blue light and red light gives the appearance of white light. The white light may be controllable. The LED filaments (2, 3, 12) may be controllable such that the LED filaments (2, 3, 12) together emit white light with variable color temperature or colored light.

This invention provides an optical guidance method for the recovery of deep-sea unmanned underwater vehicles (UUVs), belonging to the field of underwater vehicle recovery technology. The invention involves installing four blue-green LED guidance light sources in a non-uniform ring distribution on the front face of the recovery cage and pre-calibrating their three-dimensional coordinates. A binocular camera is used to acquire images of the guidance light sources in real time. Adaptive exposure control technology is employed to adjust image quality. Statistical information calculations are performed on the identified light source contours, and effective guidance light source targets are determined through convex constraint configuration judgment and ellipse fitting. The four guidance light sources are constructed as a traveling salesman problem, and a nearest neighbor heuristic algorithm is used to complete numbering matching. Based on pre-measured coordinates and real-time calculated coordinates, the rotation matrix and translation vector are solved using singular value decomposition, while simultaneously performing collaborative optimization. This method solves the technical problems of insufficient optical guidance positioning accuracy and poor real-time performance during the recovery of UUVs in deep-sea environments.

A low-frequency-band radio measuring head circuit comprises a power supply module, a central control module connected with the power supply module, a trigger signal module, an indicating lamp module, and an antenna module and a crystal oscillator module which are connected with the central control module. Wherein the trigger signal module and the indicating lamp module are connected with the central control module; the trigger signal module comprises a radio communication measuring head, and the radio communication measuring head is electrically connected with a first detection point. And the reset circuit module is connected with the central control module. The system also comprises an internal filtering module connected with the central control module, and a power supply filtering module connected with the power supply module. The crystal oscillator module comprises a main crystal oscillator module and a low-frequency crystal oscillator module; and the main crystal oscillator module and the low-frequency crystal oscillator module are respectively connected with the central control module. The indicating lamp module comprises a plurality of groups of green light-emitting diodes, red light-emitting diodes and blue light-emitting diodes which are connected in parallel. The utility model has the beneficial effects of strong penetrating power, interference resistance and low equipment power consumption.

The utility model relates to the technical field of lamps, in particular to a dyeing surface light two-in-one lamp which comprises a lamp shell, a power source, a circuit substrate, a light source and a driving control panel, the power source and the light source are both electrically connected with the driving control panel, the light source comprises more than one lamp bead substrate, and a light-emitting plane is arranged on the surface of each lamp bead substrate. According to the design that the cold white LED light-emitting chips, the warm white LED light-emitting chips, the red LED light-emitting chips, the green LED light-emitting chips and the blue LED light-emitting chips are integrated on the same lamp bead substrate, the use number of light sources can be reduced, the overall size of the lamp is further reduced, a user can adjust the power of the different light-emitting chips through the driving control panel, and therefore the light-emitting efficiency of the lamp is improved. Under the state that the total output power is constant, the dyeing function of a dyeing lamp can be met, the brightness requirement of a surface light lamp can be completely met, illumination light rays are more uniform, and the color mixing effect is better.

A photoplethysmographic module comprising at least one LED and a photodetector, characterized in that it comprises at least two subassemblies consisting of an alignment of a photodetector associated on either side with two green LEDs, and an infrared sensor. Figure 1

The utility model relates to an LED (light-emitting diode) display screen, which comprises a substrate provided with a control circuit; the array substrate comprises a substrate body and m * n pixel units, the pixel units are evenly arranged on the substrate body at intervals in rows and columns, each pixel unit comprises four LED light sources arranged in a 2 * 2 matrix, each LED light source is provided with a positive electrode and a negative electrode, and the four LED light sources of each pixel unit comprise a red LED light source, a blue LED light source and two green LED light sources. According to the LED display screen, more pixels are generated in the mode that the LED light sources arranged in the 2 * 2 matrix form the pixel units; and the number of circuits is reduced, so that the preparation process is simplified, and heat dissipation is facilitated.

The present application belongs to the technical field of apple snail prevention and control, and specifically discloses a continuous snail catching visual device triggered by light induction, which comprises a space trap, an inner floating ring, a fixed insertion rod, a collection container, a light-shielding barrel, an outer floating ring and a solar panel. The device is fixed to the water bottom through the telescopic fixed insertion rod, and the water space trap part is fixed to the inner floating ring, so that it can float up and down with the water level change, increasing the applicable scenarios. The device collects apple snails through the light-shielding barrel and green LED light source, and the fixed insertion rod can be climbed by the apple snails into the space trap. The outer wall of the space trap is provided with multiple active doors which are turned over by trigger pressure sensors. When the apple snails climb onto the active door, the active door is turned inward, and the apple snails are impacted and fall into the collection container. The collection container adopts a waterproof cloth bag, so that the apple snails close their shells due to drought, preventing them from escaping and achieving ecological killing. The present application can automatically capture apple snails and overcome various defects of the existing apple snail trapping devices.

A display apparatus including: a liquid crystal panel and a backlight unit. The backlight unit includes a substrate, a plurality of dimming blocks provided in a plurality of rows and a plurality of columns on the substrate, each dimming block of the plurality of dimming blocks including a plurality of light emitting devices, and a plurality of driving devices that drive the plurality of dimming blocks. Each light emitting device of the plurality of light emitting devices includes a red light emitting diode (LED), a green LED, and a blue LED. The display apparatus controls the plurality of driving devices to adjust a current value that is supplied to at least one of the red LED, the green LED, or the blue LED, according to an image mode.

Described herein are systems, devices, and methods for a LED display including: at least one pixel, each pixel having three subchannels arranged in a triangular configuration; and a control system configured to actuate any one or more of a downsampling mode or a temporal scanning mode of the LED display. The subchannels can be arranged in a triangular configuration, with a height less than its width, and with a blue LED positioned below a red LED and a green LED.

The invention discloses a method for de-bonding by adopting an LED lamp, and relates to the technical field of de-bonding. Comprising the following steps that S1, a wafer is placed on a supporting base; an LED lamp bead array is formed by arranging a green LED chip as a visible guide light source in each LED lamp bead and arranging an ultraviolet LED or an infrared LED or arranging the ultraviolet LED chip and the infrared LED chip at the same time as a de-bonding light source, the appearance of the LED array lamp is generally circular, and the diameters of the LED array lamp are 6 inches, 8 inches and 12 inches respectively so as to meet the de-bonding requirements of wafers. The appearance of the LED lamp can be rectangular so as to meet the requirement of board-level debonding, the energy consumption of the LED headlamp is low, the power is generally 15-200W, the service life of the LED headlamp is long and can generally reach 50,000-100,000 hours, the use cost is lower, the installation is simpler, the lamp beads are generally directly inserted into the radiator, the light emitting direction is concentrated, the uniform irradiation area is very large, and the LED headlamp is suitable for large-scale popularization and application. The use and operation are more convenient; different light combinations may be used on different types of photosensitive adhesives.

The application provides an LED lamp bead and a projection device, and belongs to the technical field of LEDs. Specifically, the application comprises a substrate, a plurality of LED chips arranged in rows and columns on the substrate, at least one LED chip in each row being a green LED chip, and the other LED chips being blue LED chips, and a fluorescent layer on the substrate and the LED chips, the fluorescent layer comprising at least yellow-green powder, nitride red powder and fluoride red powder. The application sets at least one green LED chip in each row to supplement pure green components through the green LED chip, which can effectively improve the color gamut range compared with traditional wide-spectrum green light. The yellow-green powder provided in the fluorescent layer can provide color coordinates closer to ideal green light, and the blue LED chip can compensate for the loss of brightness caused by the use of green LED chips to balance high brightness and good color performance. The fluoride red powder provided in the fluorescent layer can supplement pure red light with concentrated wavelength and extremely narrow spectrum to further improve the color gamut range.

The utility model belongs to the technical field of lighting equipment, and particularly relates to a mixed-color light LED module which comprises a frame, a light source module, a light source module and a light source module. The plurality of blue LED chips are arranged to be a plurality of blue LED chip sets and are respectively attached to the first accommodating space, the second accommodating space and the third accommodating space, the blue LED chip set located in the first accommodating space is covered with a first red fluorescent layer, and the blue LED chip set located in the third accommodating space is covered with a yellow fluorescent layer; and the green LED chip set consists of at least one green LED chip and is mounted in the second accommodating space. And all the blue LED chip groups and the green LED chip groups are arranged in parallel and can respectively control switches of the blue LED chip groups and the green LED chip groups. According to the technical scheme, the problem that a large number of red LED chips need to be assembled on an existing mixed-color light LED module, and small-size design of the mixed-color light LED module is not facilitated is solved.

The invention belongs to the technical field of semiconductor optoelectronic device manufacturing, and particularly relates to a preparation method of a high-efficiency blue-green light LED based on Zn synergistic doping, a series of innovative and synergistic Zn doping strategies are introduced into a quantum barrier, the crystal quality is improved through ultra-thin local doping of Zn and the defect passivation effect of Zn, mild carrier limitation is achieved through Zn / Si co-doping, and the quantum barrier structure of the blue-green light LED is improved. Not only is electron leakage suppressed, but also an efficient hole injection and transport channel is constructed, so that the internal quantum efficiency is improved; zn doping is introduced, and a harmful deep-energy-level non-radiative recombination center is prevented from being formed through accurate doping design, so that the internal quantum efficiency and the luminous efficiency of the device are fundamentally improved.

The application relates to the technical field of light emitting diodes, and discloses a high-hydrolysis-resistant LED epitaxial wafer and a preparation method thereof. The high-hydrolysis-resistant LED epitaxial wafer comprises a substrate, and a buffer layer, a U-shaped GaN layer, an N-type semiconductor layer, a superlattice layer, a multi-quantum well layer, an electron blocking layer and a P-type semiconductor layer are sequentially arranged on the substrate; wherein the N-type semiconductor layer is a periodic structure formed by cyclically and alternately growing a GaN layer and a Si-doped AlGaN layer; and the superlattice layer comprises periodically and alternately stacked Si-doped GaN layers and InGaN layers. By implementing the application, the hydrolysis resistance and the light emitting efficiency of a blue-green LED epitaxial wafer can be effectively improved, and the process is simple, and no additional chip process is needed.

Systems and methods of producing high quality temperature adjustable white light using six different colored LEDs is disclosed. In one embodiment the six LEDs are a Red (630 nm), an Amber (589 nm), a lime LED (568 nm), a green LED (540 nm) a cyan LED (505 nm) and a blue (430 nm). Optimal relative intensities of the RGBACL LED are calculated by solving a matrix relating the CIE tristimulus values Alternatively, optimum relative intensities may be calculated for two light sources lying on a line of constant CCT value, but on opposite sides of the Planckian locus. These relative intensities for each of the light sources are then retained and adjusted as a group to obtain a single white light source of the requested CCT value lying on the Planckian locus.

The invention relates to the technical field of solar equipment, and discloses a solar tracking device for heat energy collection. A solar tracking device for heat energy collection comprises a tracking device, a heat energy device is installed on the tracking device, a base is arranged in the tracking device, a follow-up assembly is installed above the base, a controller and a hydraulic box are arranged behind the follow-up assembly, a lower fixing sleeve is fixed to the surface of the base, and a plurality of locking rod cylinders are annularly and evenly distributed on the periphery of the lower fixing sleeve. And an uploading water guide disc is arranged in the follow-up assembly. A green LED lamp in the light sensing device serves as a light measuring signal to trigger a controller and a hydraulic box, a hydraulic push rod and a driving gear motor are used for cooperatively driving a plurality of heat collector assemblies on a guide table to adjust the angle, and it is ensured that the heat collector assemblies obtain sufficient illumination all the time; meanwhile, by rearranging the heat collector assemblies, the occupied space of the roof can be reduced by one third on the premise that the number of the heat collectors is kept unchanged, and passing and overhauling of follow-up personnel are facilitated.

The invention relates to a blue-green LED epitaxial wafer and a preparation method thereof. A multi-quantum well light-emitting layer of the blue-green LED epitaxial wafer comprises a well front gradual change InGaN layer, a first blue light InGaN layer, a first AlGaInN interface protection layer, a green light InGaN layer, a second AlGaInN interface protection layer, a second blue light InGaN layer, a well rear gradual change InGaN layer and a quantum barrier layer which are sequentially, periodically and alternately grown in the epitaxial direction. The pre-well gradient InGaN layer comprises a plurality of first InGaN layers which are stacked in sequence, and the In component contents of the plurality of first InGaN layers are gradually increased in sequence along the epitaxial direction; the well rear gradient InGaN layer comprises a plurality of second InGaN layers which are sequentially stacked, and the In component content of the plurality of second InGaN layers is sequentially decreased along the epitaxial direction. Wherein N2 atmosphere heat treatment needs to be carried out before the first AlGaInN interface protection layer is deposited and before the second AlGaInN interface protection layer is deposited. According to the invention, the preparation cost of the LED backlight source can be effectively reduced, the active region has good composite efficiency, and the light uniformity of the LED chip is good.

In the electronic paper display screen assembly, at least one edge of an electronic paper display screen comprises an illumination light band, and the illumination light band comprises a red LED strip, a green LED strip and a blue LED strip. The sound control electronic paper display screen assembly comprises a display module and a control module. The display module comprises an illumination light band and an electronic ink display screen; the illumination light bands are distributed on the periphery of the electronic ink display screen; the illumination light band comprises an LED light band A; the control module comprises a driving module and an environment sensing module; the driving module comprises an LED driving module A; the LED driving module A is electrically connected with the LED light band A; the driving module is electrically connected with the environment sensing module; the environment sensing module comprises a sound sensor and a voltage control module; the sound sensor outputs an electric signal according to surrounding sound, the voltage control module outputs a control electric signal to the LED driving module A according to the electric signal, and the LED driving module A drives the LED light band A.

This invention relates to the field of light guide plate manufacturing technology, and in particular to a method for manufacturing an anti-blue light composite light guide plate, comprising the following steps: Step 1, UV ink and blue light conversion structural material are respectively disposed on the light guide plate; Step 2, the light guide plate is fed into a UV curing oven for curing to form an anti-blue light composite light guide plate; In Step 1, the blue light conversion structure and UV ink are located on the same side or opposite side of the light guide plate. In this invention, step-by-step printing, inkjet printing or spin coating is used to combine the blue light conversion structure based on low-dimensional colloidal materials or organic mixed materials with printed light guide dots, converting harmful blue light of 400-440nm into longer wavelength visible light, reducing the harm of blue light to the human eye, and realizing healthy and green LED lighting.

The utility model provides a vehicle-mounted color film projection device, and relates to the technical field of vehicle lamp projection. Comprising an RGB light source module, a light splitting and combining assembly and a film projection module. The RGB light source module is used for emitting red light, blue light and green light; the light splitting and combining assembly is composed of three sets of focusing lenses, a first light splitting piece and a second light splitting piece, the output ends of the green LED lamp beads and the output ends of the red LED lamp beads are connected to the first set of focusing lenses and the second set of focusing lenses respectively, and the first light splitting piece is arranged at the output ends of the first set of focusing lenses and the second set of focusing lenses. The output end of the blue LED lamp bead is provided with a third group of focusing lenses, the output end of the third group of focusing lenses is provided with a second light splitting sheet, and light combination of RGB three-color light is completed through the first light splitting sheet and the second light splitting sheet; and a film projection module is arranged behind the second beam splitter and is used for focusing the combined RGB three-color light to form a preset pattern and projecting the preset pattern to a target area. By combining the light splitting and combining assembly, the problem of single color of film projection is solved.

The invention discloses a GaN-based blue-green light LED epitaxial wafer based on a Zn-doped gradient composite buffer layer and a preparation method of the GaN-based blue-green light LED epitaxial wafer. The epitaxial wafer comprises a substrate, a zinc-doped gradient composite buffer layer and a gallium nitride-based epitaxial laminated structure, and the zinc element concentration is in gradient distribution along the growth direction, preferably, the zinc element concentration is gradually reduced from the side close to the substrate to the side far away from the substrate. And the buffer layer comprises at least two of a Zn3N2 layer, a constant component ZnGaN layer or a component gradient ZnGaN layer. During preparation, the buffer layer is grown at the temperature of 400-850 DEG C, concentration gradient is realized by adjusting the flow ratio of zinc-containing and gallium-containing precursors, and forced doping is realized by adopting a 10-50-time high-flow compensation strategy in a high-temperature interval. According to the invention, lattice constant soft landing is realized by supercell matching of Zn3N2 and GaN, and nitrogen vacancy point defects are passivated in situ by using Zn atoms. Experiments prove that the luminous efficiency of the chip can be improved by about 0.81%, the ESD (Electro-Static Discharge) 4000V yield is improved to more than 98.2%, and the crystal quality and the reliability of the device are obviously enhanced.