1248 results about "Green-light" patented technology

Various structures for a hybrid pixel array are disclosed. The hybrid pixel array includes a combination of square photodiode (PD) pixel structures and split PD pixel structures. Square PD pixel structures include one photodiode per pixel unit while split PD pixel structures include two photodiodes per pixel unit. In certain instances, square PD pixel structures are used for green light pixels and split PD pixel structures are used for blue and red light pixels in the hybrid pixel array. The combination of square PD pixel structures and split PD pixel structures provides autofocus capability with higher signal strengths. Various techniques for row addressing and readout from the hybrid pixel array are also disclosed.

The invention relates to the technical field of semiconductor devices, in particular to a low-working-current-density green light Micro-LED epitaxial structure and a preparation method thereof. The epitaxial structure comprises a substrate, a buffer layer, an N-type semiconductor layer, a low-temperature stress release layer, a multi-quantum well light-emitting layer and a P-type semiconductor layer. The electron blocking layer is not arranged on the multi-quantum-well light-emitting layer, the multi-quantum-well light-emitting layer comprises four sub-layers including a first light blue light multi-quantum-well layer, a second blue light multi-quantum-well layer, a third green light multi-quantum-well layer and a fourth light blue light multi-quantum-well layer, and the In component content in the third green light multi-quantum-well layer is larger than that in other layers. The third cyan light multi-quantum well layer is a main light-emitting unit and is not provided with an electron blocking layer, so that the blocking effect on hole injection can be eliminated, the hole injection efficiency of the P-type semiconductor layer is remarkably improved, and the matching degree of electron hole concentration in a multi-quantum well light-emitting layer region is improved.

The invention relates to display equipment which comprises a liquid crystal display panel, a backlight module and a control circuit. A backlight partition of the backlight module comprises at least one light-emitting unit, the light-emitting unit comprises a first blue light-emitting chip, a green light-emitting chip and a red light-emitting module, and the red light-emitting module comprises a second blue light-emitting chip and a red phosphor located above the second blue light-emitting chip. The control circuit is configured to obtain image frame data, determine input gray-scale values of all color pixels in an image partition corresponding to the backlight partition, and generate all color backlight values of the partition; and driving the green and second blue light-emitting chips based on the green and red backlight values, and not lightening the first blue light-emitting chip or driving the first blue light-emitting chip to carry out blue light brightness compensation based on a comparison algorithm processing result of the blue and red backlight values, thereby improving the display color cast problem. And meanwhile, driving data are generated based on the input gray-scale values of the color pixels to drive the panel, so that the display effect of the display equipment is improved.

The invention provides a focusing method, device and equipment. The method comprises the following steps: determining pixel offset between a red channel image and a green channel image of a tissue slice; the red channel image and the green channel image are a red channel image and a green channel image of a tissue slice in a ghosting image captured by the color image sensor when a red light filter, a green light filter and double optical wedges in the focusing module are modulated at the same time; determining an out-of-focus distance according to the pixel offset and a preset corresponding relation; the preset corresponding relation is the corresponding relation between the pixel offset and the defocus distance; and focusing according to the out-of-focus distance. According to the method provided by the embodiment of the invention, the problem that positive and negative defocusing directions cannot be distinguished through a single-frame image in a phase shift detection automatic focusing technology based on image monochromatic double-hole modulation is solved, and the problem of time waste caused by high-speed switching of an illumination light source in an automatic focusing technology based on red-green double-LED illumination is solved; and meanwhile, the problem that a phase shift detection automatic focusing technology based on pupil segmentation images is relatively small in focusing range is solved.

The embodiment of the utility model discloses a backlight module and display equipment, and relates to the technical field of display. The backlight module comprises a light guide part and a lamp panel. The lamp panel comprises a circuit board, a white light-emitting unit, a red-green-blue light-emitting unit, a power line and a driving chip. The white light emitting unit includes a first blue light emitting chip and a photoluminescence portion. The red-green-blue light-emitting unit comprises a plurality of light-emitting chips, and the plurality of light-emitting chips comprise a red light-emitting chip, a green light-emitting chip and a second blue light-emitting chip. The first power supply wire is connected with the first blue light-emitting chip, the second blue light-emitting chip and the green light-emitting chip, and the second power supply wire is connected with the red light-emitting chip. In the width direction of the circuit board, the power line and the driving chip are arranged on the two sides of the light-emitting unit respectively. According to the embodiment of the invention, the light-emitting effect of the lamp panel can be improved, and the connection convenience of the light-emitting unit, the power supply wire and the driving chip is improved.

A quantum dot composite configured to emit green light or red light. The quantum dot composite including a polymer matrix, and a plurality of quantum dots dispersed in the polymer matrix, the plurality of quantum dots include a semiconductor nanocrystal core comprising indium and phosphorus. As determined by differential scanning calorimetry, the quantum dot composite exhibits an intensity of a peak between about 350° C. to about 450° C. that is about 8 times or more and about 13 times or less relative to an intensity of a peak between about 200° C. and about 300° C. in a thermogravimetric analysis graph.

A light emitting device is provided. The light emitting device includes a blue light unit, configured to emit blue light; a green light unit, configured to emit green light; a red light unit, configured to emit red light; and a warm white light unit, configured to emit warm white light. A dominant wavelength of the warm white light is in a range from 570 nm to 600 nm. A color coordinate of the warm white light unit and a color coordinate of the red light unit are respectively located at opposite sides of the Planckian locus. The blue light unit, the green light unit, the red light unit and the warm white light unit are configured to cooperate to emit mixed white light and are configured to adjust a color temperature of the mixed white light.

The invention provides an intersection priority passing method, device and equipment for an emergency vehicle and a medium, and relates to the technical field of traffic signal control, and the method comprises the steps: generating a passing route of the emergency vehicle according to an emergency planning route of the emergency vehicle and the predicted passing time between every two adjacent intersections in the emergency planning route, the predicted passing time is obtained according to a current traffic state and a historical traffic state, and the passing route comprises information of a plurality of intersections through which the emergency vehicle sequentially passes; under the condition that the emergency vehicle drives into the upstream preset distance of each intersection in the passing route, the green light time of the emergency passing direction of the intersection is prolonged; according to the traffic signal when the emergency vehicle is predicted to arrive at the stop line of each intersection in the passing route, the corresponding green light extension strategy or the red light early cut-off strategy is adopted to adjust the timing parameter of the traffic signal when the emergency vehicle is predicted to arrive at the intersection, and the problem of priority passing of the emergency vehicle at the intersection can be solved.

The embodiment of the invention provides a traffic signal-based vehicle path planning method and related equipment, and belongs to the technical field of automatic driving. The method comprises the following steps: acquiring traffic light data of each intersection of a target driving path; according to the green light time interval of the traffic light data, time constraint calculation of multi-intersection continuous passing is carried out, and a time constraint of continuous green wave passing is obtained; performing speed calculation on each road section according to the time constraint to obtain a speed interval of each road section; performing quadratic programming on the speed interval by taking the energy consumption and the driving time as optimization objectives to obtain a global speed sequence; and performing multi-dimensional constraint and multi-target optimization on a speed controller of the vehicle according to the global speed sequence so as to control the vehicle to run on the target running path. According to the embodiment of the invention, the vehicle can be guided to realize continuous green light passing, and the driving efficiency and the driving comfort are improved while the driving energy consumption of the vehicle is reduced.

The invention discloses a high and cold slope disaster body segmentation method fusing optical and SAR images, and the method comprises the following steps: 1, carrying out the snow coverage normalization processing based on the visible light green light wave band and the short wave infrared wave band of an optical image, and generating an ice and snow mask through an expectation maximization algorithm and a Gaussian mixture model; 2, preprocessing the optical image and the SAR image; step 3, constructing a high and cold slope disaster body segmentation model based on a Transform network; 4, training the segmentation model by using Dice loss and cross entropy loss in a combined manner, and freezing parameters of an image encoder in the training process; and step 5, inputting the high and cold slope remote sensing image into the trained segmentation model, and outputting a segmentation result of the slope disaster body by the segmentation model. According to the method, the problems of large ice and snow interference and poor multi-source data collaboration in high and cold slope disaster body segmentation are solved, and the segmentation precision and the engineering applicability are improved.

The present disclosure relates to the technical field of display chips. Disclosed are a full-color MicroLED and a manufacturing method therefor. The full-color MicroLED comprises a driving substrate, a first light-emitting layer, a first connecting layer, a second light-emitting layer, and a second connecting layer; the driving substrate comprises a first P-type semiconductor electrode transition layer; the first light-emitting layer comprises first light-emitting units and a second P-type semiconductor electrode transition layer; the first connecting layer comprises a first N-type semiconductor electrode transition layer, first N-electrode grids, and a third P-type semiconductor electrode transition layer; the second light-emitting layer comprises second light-emitting units and a fourth P-type semiconductor electrode transition layer; the second connecting layer comprises a second N-type semiconductor electrode transition layer and second N-electrode grids; a color conversion layer is provided at the position of the second connecting layer corresponding to some of the second light-emitting units. In the present disclosure, the driving substrate drives the light-emitting units on the first light-emitting layer and the second light-emitting layer to respectively emit green light and blue light, and then part of the blue light of the second light-emitting units is converted into red light by means of the color conversion layer, thereby achieving full-color light emission.

The utility model relates to the technical field of semiconductors, in particular to a backlight source chip and an LCD display screen, the backlight source chip comprises a substrate, interdigital electrodes and LED chips distributed on the substrate, and a light color conversion layer covering the surfaces of the LED chips, and the LED chips comprise a blue light LED chip and a green light LED chip; the blue-light LED chip and the green-light LED chip are electrically connected with an external driver through the interdigital electrodes and leads; the light color conversion layer is used for converting the color of light emitted by the blue light LED chip and the green light LED chip into white, compared with a backlight source chip only comprising the blue light LED chip, the backlight source chip has the advantage that a green light component is added, and the color gamut of an LCD display screen can be improved.

The invention provides a trunk line green wave control method for dynamically adjusting green light duration based on real-time sensing data, and relates to the technical field of green wave control, and the method comprises the steps: obtaining a fusion feature set at each intersection of a trunk line; determining an initial green wave period, an initial phase difference and an initial green light duration; a continuous passing zone is formed; dynamic compensation is carried out on the steering phase green light duration, and linkage correction is carried out on the steering phase green light duration and a straight-going phase adjustment result; the pedestrian phase is incorporated into the phase structure of the current period in an insertion mode, and timing calibration with the next period is executed; performing micro-amplitude correction on the phase difference of the adjacent intersections to obtain a phase difference reference distribution scheme; periodically evaluating the control effect to obtain a green wave period reference value; and performing adaptive updating on the green wave period reference value and the phase difference reference distribution scheme. According to the invention, the technical problem of low trunk line green wave control efficiency in the prior art can be solved, and the technical effect of improving the trunk line green wave control efficiency is achieved.

The invention relates to the technical field of optical imaging, and discloses an AR optical projection machine and an optical display system, the projection machine comprises a projection lens group, a color combination prism assembly and a three-color display array; the projection lens group comprises a diaphragm STO, a first lens, a second lens, a third lens and a fourth lens. The color combination prism assembly comprises a plurality of prisms which are glued with one another, and a film coating structure which is used for reflecting red light and blue light and transmitting green light is arranged on each prism; the three-color display array comprises three display chips; wherein the FOV (field of view) of the AR optical projection machine is greater than or equal to 30 degrees and less than or equal to 40 degrees; the ratio of the total optical length TTL of the AR optical projection machine to the effective focal length f of the system meets the condition that TTL / f is larger than or equal to 5.0 and smaller than or equal to 7. The field angle of the system is limited within the range of 30-40 degrees, the ratio of the total optical length TTL to the effective focal length f is kept within 5.0-7.7, an imaging field meeting the AR application requirement can be obtained within the limited optical path length, meanwhile, the overall compactness of the optical system is considered, and the optical system can be more easily integrated into small-size near-to-eye display equipment.

The invention discloses a cross-medium wearable audio transmission system and a transmission method thereof, which are suitable for audio communication scenes in an air and water body junction environment such as a natatorium. The system comprises a shore transmitting terminal and an underwater receiving earphone, and adopts a blue-green light wave band as a transmission carrier to realize cross-medium wireless transmission of audio signals. The transmitting terminal comprises an audio preprocessing module, a modulation and driving module and a coarse-fine composite light beam alignment module; the receiving earphone comprises an optical receiving module, a posture sensing and aligning module, a signal processing module and a bone conduction audio output unit. According to the system, through a dynamic attitude compensation and light beam alignment mechanism, the audio transmission rate greater than or equal to 1Mbps in a 10-meter range is realized, the error rate is less than or equal to 1 * 10 <-6 >, and the transmission delay is less than 50ms. The method has the advantages of high communication quality, strong anti-interference capability, good wearable performance and the like, and is suitable for scenes of underwater training, voice guidance, immersive audio playing and the like.

The invention provides a projection optical system. The projection optical system comprises a lens barrel and a color combination prism assembly which are sequentially arranged from the imaging side to the image source side in the optical axis direction. A lens group and a spacing assembly are accommodated in the lens barrel; the lens group comprises a first lens, a second lens, a third lens and a fourth lens which are sequentially arranged from the imaging side to the image source side in the optical axis direction. The spacing assembly comprises first, second and third spacing elements; the color combination prism assembly comprises a color combination prism, a red light-emitting chip, a green light-emitting chip and a blue light-emitting chip; a blue light band-pass filtering film and a red light band-pass filtering film are respectively arranged on two diagonal surfaces of the color combination prism; the green light-emitting chip is perpendicular to the optical axis, and the red light-emitting chip and the blue light-emitting chip are parallel to the optical axis; the projection optical system also satisfies the following conditions: (CT1 + CT2) / CP1 is more than 0.90 and less than 1.65; 4.90 < d2m / (T23 + CT3) < = 7.30; and 5.50 < d3s / T34 < 9.80.

The invention provides europium-doped silicate green fluorescent powder as well as a preparation method and application thereof, and belongs to the technical field of luminescent materials. The green fluorescent powder can generate narrow-spectrum green light with the peak value located at 532 nm under excitation of 450 nm blue light, the full width at half maximum is 46 nm, a white light LED device prepared based on the fluorescent powder has a 110% NTSC color gamut, and it is indicated that the green fluorescent powder has excellent application value in backlight display. The saturation threshold value of the fluorescent powder reaches 21.6 W / mm < 2 > under the excitation of 450nm blue laser, and the lumen at the moment reaches 1157.9 lm. The green fluorescent powder disclosed by the invention has the advantages of high luminous efficiency, narrow full width at half maximum, high light saturation threshold under blue laser excitation, high lumen efficiency and the like, and has application feasibility in the aspect of laser display.

The invention provides a smart city traffic abnormity monitoring method and system based on an Internet of Things large model, and relates to the field of Internet of Things and smart city traffic management. The system comprises an abnormity judgment module and a diversion module. The abnormity judgment module is configured to perform abnormity judgment on the target area according to the multi-source data and determine a plurality of hidden danger hot areas; the diversion module is configured to determine a plurality of standby routes according to the judgment result and the regional road network topological map; determining a plurality of main routes according to the plurality of standby routes and the position information of the plurality of variable information boards, generating a diversion instruction, and sending the diversion instruction to the emergency supervision object platform; and based on the diversion instruction, controlling a plurality of variable information boards to display a sketch of a corresponding main route, and controlling traffic lights on a plurality of standby routes to perform green light signal display according to a passing period. According to the method, the main pushing route of the variable information boards can be reasonably determined and controlled, potential traffic accident hidden dangers are prevented, and traffic safety is guaranteed.

The invention belongs to the technical field of luminescence and display, and particularly relates to a D-A type green light TADF material and application thereof in OLEDs. The luminescent material comprises an oxygen bridge triphenylboron acceptor unit and oxygen bridge triphenylamine which are used as donor units, and a green light TADF material is constructed through simple coupling. The rigid large plane structure of the material limits rotation of a benzene ring, vibration relaxation of a condensed ring structure is reduced, and the photoluminescence efficiency as high as 90% is obtained. Research results show that the maximum emission peak of the device is 518 nm and the maximum external quantum efficiency (EQE) of the device is 37.8% under different doping concentrations when the OLEDs are processed by the solution, especially under the doping concentration of 5-100%, the electrogenerated emission peak change of the device is small, the EQE of 30% or above is kept, the excellent concentration quenching inhibition performance is shown, and the application prospect is attractive.

Disclosed herein is an organic light emitting diode device. The organic light emitting diode device includes an anode, a cathode and a light emitting layer. The light emitting layer has a structure where a blue light emitter and a red / green simultaneous light emitter are stacked. The red / green simultaneous light emitter has a structure where a red light emitter and a green light emitter are stacked. The red light emitter includes a red host compound, and in some embodiments, the red host compound includes a spirobisfluorene-based compound where an aryl amino group is substituted. The green light emitter includes a green host compound, and the green host compound includes a mixture of a first green host compound and a second green host compound. In some embodiments, the first green host compound includes a biscarbazole-based compound and the second green host compound includes an indolocarbazole-based compound.

The utility model relates to the field of Micro-LED display, in particular to a vertically stacked three-color full-color Micro-LED structure, which is characterized in that the vertically stacked three-color full-color Micro-LED structure comprises a driving circuit, a first chip, a second chip and a third chip are sequentially arranged on one side of the length direction of the driving circuit from top to bottom, and the first chip, the second chip and the third chip are arranged on the other side of the length direction of the driving circuit. The length of the first chip is larger than that of the second chip, and the length of the second chip is larger than that of the third chip, (1) the space occupation caused by transverse tiling in the Micro-LED array is reduced, the pixel density of a display screen is remarkably improved, the area of full-color pixels is reduced, the overall size of the screen is reduced, and the size of the display screen is reduced; according to the invention, the structure is simple, the structure is compact, the structure is simple, the structure is especially suitable for high-precision, high-resolution and miniaturized display equipment, the influence of high-energy photons of blue light or green light on the red light chip is effectively reduced, each chip pole can be directly and vertically connected to the driving circuit at the bottom, the occupied space is reduced, and the problems of complicated pole extension and connection in a traditional stacked structure are avoided.

The invention discloses an intersection signal control method based on minimum blocking probability and highest traffic capacity, and relates to the technical field of intelligent traffic systems. A bilevel planning optimization model is constructed, an upper layer model takes minimization of intersection blocking probability as a core target, a blocking probability function is established through dynamic quantification of traffic flow random volatility, and a sequential quadratic programming algorithm is fused to optimize a signal period and effective green light time parameters of each phase; the lower layer model is based on a Webster delay model, and feeds back the traffic state in real time by taking the minimization of the total delay of the vehicle as a target. The upper layer model and the lower layer model realize collaborative optimization through a closed loop mechanism of parameter adjustment-delay feedback-iterative optimization, and meanwhile, a dynamic weight coefficient is introduced to flexibly coordinate multi-target conflicts of the blocking probability, delay and traffic capacity. According to the method, the dynamic response capability of signal timing to the real-time traffic demand is remarkably improved, the peak delay of the intersection is effectively reduced by 20%, the average peak delay is effectively reduced by 15%, and the road network toughness is enhanced.

The embodiment of the invention discloses display equipment and a control method of the display equipment, and relates to the technical field of display, first target backlight data is generated directly according to initial backlight data and preset component data under the condition that a brightness enhancement condition is not met, and the first target backlight data is generated directly according to the preset component data under the condition that the brightness enhancement condition is met. Second target backlight data is obtained according to the first gain coefficient, the initial backlight data and the preset component data, at least one of the red light-emitting light source, the green light-emitting light source and the blue light-emitting light source emits light under the condition that the gray field picture or the white field picture is displayed, and the brightness enhancement condition is met under the condition that the brightness enhancement condition is met. The brightness increasing proportion of the emergent light corresponding to at least one of the red light, the green light and the blue light is close to the brightness increasing proportion of the emergent light corresponding to the white light, backlight supply is achieved through the light-emitting light sources corresponding to the red light, the green light, the blue light and the white light respectively, the energy consumption of the display device is reduced, and meanwhile the display effect of the display device is guaranteed.

The embodiment of the invention discloses a display device and a control method of the display device, and relates to the technical field of display, the display device comprises a backlight module, a liquid crystal panel and a backlight driving circuit, the backlight driving circuit determines target backlight data according to initial backlight data and preset reference data, and a first target color coordinate is taken as a reference, so that the first target color coordinate is obtained; the initial backlight data is converted into target backlight data, color cast caused by conversion is reduced, and meanwhile, under the condition that the initial backlight data is backlight data corresponding to a white field picture or a gray field picture, the target backlight data obtained through conversion can make at least one of a red light-emitting light source, a green light-emitting light source and a blue light-emitting light source emit light; therefore, the light-emitting color cast phenomenon of the white light-emitting source is improved. Backlight supply is achieved through the light-emitting light sources corresponding to red, green, blue and white, so that the energy consumption of the display device is reduced, and meanwhile the display effect of the display device can be guaranteed.

The low-speed wire feeding machine tool comprises a machine tool body, a wire feeding mechanism and a workpiece clamp, a workbench is fixedly installed on the machine tool body, the wire feeding mechanism is installed on the top of the machine tool body, the workpiece clamp is arranged on the workbench of the machine tool body, and a clamp base is installed on the workbench; the workpiece clamp comprises an adjustable positioning assembly which is arranged on a clamp base and used for providing a reference for the position of a workpiece for positioning; the self-adaptive clamping assemblies are symmetrically arranged on the two sides of the top of the clamp base; the adjustable positioning assembly drives a positioning sliding block to slide along a positioning sliding groove through a positioning screw rod, and the position of the positioning sliding block can be accurately adjusted in cooperation with a dial with angle scales. A laser displacement sensor of the real-time positioning detection assembly can detect the position of a workpiece in real time, a signal indicating lamp emits green light when the workpiece is qualified, and an alarm is given when the workpiece is abnormal, the workpiece positioning precision is doubly guaranteed, manual calibration errors are avoided, and a reliable reference is provided for high-precision mold machining.

According to the intelligent green light phototherapy glasses and the intelligent adaptation method thereof, a narrow-band green light LED light source with the central wavelength being 530 + / -5 nm is adopted, and individualized pain management is achieved in combination with heart rate variability, electrodermal response and pupil dynamic monitoring. A multi-source sensor and a micro control panel are arranged in the glasses, physiological data are collected in real time, the illumination intensity, frequency and irradiation mode are dynamically adjusted through an artificial intelligence algorithm, and a closed-loop phototherapy control system is constructed. The device supports Bluetooth / Wi-Fi connection, interacts with a mobile terminal APP, and realizes data recording, curative effect evaluation and remote monitoring. The system has multiple safety mechanisms such as constant-current driving, temperature feedback, over-illumination protection and posture detection, and long-term wearing safety is ensured. Through the regulation effect of green light on pain neural pathways, a safe, portable and intelligent chronic pain non-drug treatment means is provided under the condition that daily activities are not interfered, and high compliance and a remarkable analgesic effect are achieved.

The utility model relates to an LED light source module and an LED light source. The LED light source module comprises a light source plate and a plurality of light-emitting units. The light source plate comprises a first light-emitting area and a second light-emitting area, and the first light-emitting area and the second light-emitting area are symmetrically arranged with respect to a symmetry axis extending in the longitudinal direction and passing through the center of the light source plate. The light-emitting units are arranged on the light source plate in an array mode, and the light-emitting units are distributed in the first light-emitting area and the second light-emitting area in a one-to-one symmetry mode. Each light-emitting unit comprises a red light source device, a green light source device and a blue light source device which are distributed in a preset mode. The distribution positions and orientations of the light source devices in the light emitting units in the first light emitting area are the same, and the distribution positions and orientations of the light source devices in the light emitting units in the second light emitting area are the same. The distribution orientation of the light source devices in the light emitting units in the first light emitting area is opposite to that of the light source devices in the light emitting units in the second light emitting area. The light emitting uniformity of the LED light source module is high, and the lighting requirement of the photography and video recording lamp can be met.

The invention relates to the technical field of semiconductor materials, in particular to a low-working-current-density green-light LED epitaxial structure and a preparation method thereof.The low-working-current-density green-light LED epitaxial structure comprises a substrate, and a buffer layer, an N-type semiconductor layer, a low-temperature stress release layer, a multi-quantum-well light-emitting layer and a P-type semiconductor layer which are sequentially stacked on the substrate; the multi-quantum-well light-emitting layer comprises a first blue light multi-quantum-well layer, a second green light multi-quantum-well layer, a third green light multi-quantum-well layer and a fourth green light multi-quantum-well layer which are sequentially stacked and grown from bottom to top. Wherein each InGaN well layer and each quantum barrier layer are subjected to gradient design in thickness, Al component and In component, so that electron and hole space matching is realized, and the performances such as luminous efficiency and yield of the green light LED chip under low working current density are improved.

The invention relates to the technical field of image detection, in particular to a copper bar conducting layer welding defect detection method based on machine vision, which comprises the following steps: constructing a multispectral imaging mechanism to carry out image acquisition on a to-be-detected area; automatically switching the current light source combination according to the image acquisition scene and the real-time image quality to obtain a multispectral image; processing the multispectral image, and identifying oxide layer boundary and thickness distribution; separating the oxide layer, the copper substrate and the suspected defect area by combining the channel brightness ratio between the light sources, and performing global enhancement on each area to obtain a global display enhanced image; the oxide layer texture in the global display enhanced image is eliminated by using an oxide layer texture elimination model, and a clear substrate image is recovered; extracting multi-scale features of a suspected defect area in the clear base material image, screening out key defects through a defect identification model, and performing local enhancement; and classifying key defects by combining green light morphological characteristics, infrared temperature characteristics and ultraviolet fluorescence characteristics.

The invention relates to a boron-containing resonance type organic compound and an organic electroluminescent device containing the same, and belongs to the technical field of semiconductors. The structure of the boron-containing resonance type organic compound is shown as a general formula (1). When the boron-containing resonance type organic compound disclosed by the invention is used as a doping material in a luminescent layer material of an organic electroluminescent device, the boron-containing resonance type organic compound disclosed by the general formula (1) can be used as a luminescent layer green light doping material of the organic electroluminescent device; the efficiency of the organic light-emitting device is improved, and the high-temperature service life is remarkably prolonged.