695 results about "Electroluminescence" patented technology

The invention discloses an unmanned aerial vehicle inspection system and method for a super-large-scale photovoltaic power station, and relates to the technical field of substation inspection, and the system comprises a multi-rotor unmanned aerial vehicle group deployment module, a honeycomb scanning network construction and three-dimensional radiation thermograph generation module, an inspection path dynamic planning module, and a photovoltaic panel inclination angle optimization path optimization module. The fault probability analysis module is used for collecting data through electroluminescence and infrared thermal imaging and generating a fault distribution diagram by fusing a historical defect feature library, the hidden fault recognition module is used for dynamically recognizing fault types in combination with multi-source data and flight instructions, and the intelligent charging docking module is used for carrying out intelligent charging. And adjusting a return flight threshold according to the fault level and battery attenuation and triggering a charging mechanism. The technical problems that in the prior art, a large-scale photovoltaic power station is low in inspection efficiency, insufficient in fault detection precision and poor in environmental adaptability are solved, and the technical effects of improving the inspection efficiency, the fault detection precision and the environmental adaptability through cooperative inspection of the unmanned aerial vehicle group are achieved.

The embodiment of the invention provides an electroluminescent element integrated packaging method and system, and belongs to the field of electroluminescent element integrated packaging, and the method comprises the steps: obtaining integrated packaging demand data, and obtaining a parameterized initial integrated packaging frame model; selecting an electroluminescent primitive combination in combination with the macro model library and establishing an electroluminescent primitive group model; constructing an initial full-parameterization integrated packaging model and setting engineering constraint conditions; light spatial spectrum distribution data are output, light color performance analysis is carried out based on the light spatial spectrum distribution data, and a final full-parameterized integrated packaging model is generated through a collaborative optimization mechanism; and carrying out electroluminescent element integrated packaging according to the integrated packaging engineering package. Through combination of parametric modeling, multi-physics field coupling simulation and a collaborative optimization mechanism, quantitative evaluation and dynamic optimization of light and color performance are realized, and the problems of uneven light and color distribution and insufficient multi-physics field collaboration in the prior art are solved.

The invention discloses an LED (Light Emitting Diode) energy-saving street lamp system self-adaptive to an ambient light effect and an illumination adjusting method thereof, and belongs to the technical field of novel illumination control and green energy conservation. The system comprises a light environment sensing module, a traffic flow monitoring module, an LED driving power supply and an electroluminescent illumination module composed of a plurality of light emitting diodes. The main control module is configured to execute active lighting effect decoupling logic, namely, when the electroluminescent lighting module keeps steady-state lighting, the driving power supply is controlled to inject a micro-disturbance modulation signal which cannot be perceived by human vision into output current, and illuminance response data of the light environment perception module are synchronously collected; the road surface reflectivity coupling coefficient is obtained in real time by calculating the change ratio of the response data to the modulation signal, then the reflected light component excited by the street lamp itself is accurately removed from the total illumination value, and the pure environment background illumination is decoupled. The problems of misoperation and energy waste caused by self-luminous interference of a traditional light-operated street lamp are solved.

The present application relates to a display panel, an electronic device and a display panel manufacturing method. The display panel includes a planarization layer, a sub-anode layer, a pixel define layer, an electroluminescent layer and a cathode layer. The sub-anode layer is configured to control light emission conditions of sub-pixels, and is above the planarization layer. The sub-anode layer has a plurality of separate sub-anodes. The sub-anode has a via hole penetrating therethrough. In the above structure, water vapor can be evaporated outwards through via holes on the sub anodes, so as to avoid the water vapor from being blocked between the planarization layer and the sub anode layer, and further avoid the situation existing in the sub anode layer in which the water vapor rises upwards and forms a protrusion and / or an opening. With the above configuration, it is beneficial to ensure the display effect of the display panel.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an organic light-emitting device and a display or lighting device comprising the organic light-emitting device. A hole transport layer compound of the device is obtained by taking a phenyl and alkyl fixed substituted fluorenyl structure as a core fragment and taking a benzo five-membered ring and a limited substituted benzene ring as two side chains of amido, and is matched with a limiting material of a light-emitting auxiliary layer to manufacture an OLED (Organic Light Emitting Diode) element; the light-emitting efficiency and the working life of the organic light-emitting device are effectively improved, and the application prospect is very good.

The invention discloses a BC solar cell electroluminescence defect and power detection integrated system comprising a bearing mechanism used for fixing a BC solar cell; a PCB probe board on the probe module is electrically connected with a source meter, and the PCB probe board is used for being connected with a BC solar cell and forming a closed loop with the source meter; the system further comprises an infrared imaging unit, a lighting source and a central processing unit, and the central processing unit is used for switching an EL defect detection mode and an I-V detection mode and processing and analyzing EL images and I-V data. According to the BC solar cell electroluminescence defect and power detection integrated system, the multi-point elastic PCB probe board suitable for the BC solar cell is designed, and EL defect detection and I-V detection (test) functions are integrated on the same probe-source table hardware system, so that the two discrete functions are integrated into one system; the detection efficiency is improved; and the hardware cost is reduced.

This disclosure relates to magnetic microgel beads, and in particular to magnetic microgel beads for biofunctionalization and methods of making and uses thereof, for example, in biosensing assays. In an embodiment, a magnetic microparticle comprising a magnetic nanoparticle encapsulated by a polymer hydrogel. In another embodiment, an assay for detecting the presence of a target analyte in a sample comprising a) the magnetic microparticle disclosed herein, wherein the biorecognition agent further comprises a reporter moiety; b) an electrochemical chip comprising a working electrode, a counter electrode and a reference electrode; and c) a capture probe functionalized on the working electrode; wherein binding of the biorecognition agent to the target analyte results in production of an electrochemical, electroluminescent or photoelectrochemical signal.

The application belongs to the technical field of intelligent electronic devices, and particularly relates to a high-color-purity multi-color electroluminescent fiber and a preparation method and application thereof. The fiber is prepared by the following steps: preparing lead halide perovskite type nano quantum dots as light conversion particles by a hot injection method, a room temperature supersaturation recrystallization method and the like; grafting and modifying the lead halide perovskite type nano quantum dots on the surface of metal sulfide type electroluminescent particles through a surface ligand to obtain high-color-purity multi-color electroluminescent active material; compounding the light conversion particle modified electroluminescent active material and a transparent thermoplastic elastomer polymer to obtain active slurry, and coating the active slurry on the surface of a conductive fiber through a continuous limited coating process; loading an external electrode on the conductive fiber to obtain the high-color-purity multi-color electroluminescent fiber. The multi-color electroluminescent fiber prepared by the application has various colors and high color purity, and meets the color gamut range required by the luminescent fiber and display fabric.

The invention provides a photovoltaic module electroluminescent image acquisition system and method, and a defect detection method, which can be used in the technical field of photovoltaic power generation. The system comprises a liquid crystal polarization modulator, an infrared camera and an image processing unit, the liquid crystal polarization modulator is arranged in front of a lens of the infrared camera and used for changing the polarization direction of incident light entering the lens of the infrared camera; the infrared camera is used for shooting the photovoltaic module to be detected so as to be used for collecting an infrared image set of the photovoltaic module; wherein the infrared image set comprises a first infrared image collected during the first polarization direction and a second infrared image collected during the second polarization direction under the same field of view; and the image processing unit is used for carrying out differential processing on the first infrared image and the second infrared image to obtain an electroluminescent image of the photovoltaic module. According to the invention, the electroluminescent signal of the photovoltaic module is extracted through a pure optical polarization modulation means, so that the collection efficiency of the electroluminescent image of the photovoltaic module is greatly improved.

The invention provides a red light and infrared light-emitting compound based on a boron-nitrogen fused ring and application thereof. The invention provides a boron-nitrogen polycyclic aromatic hydrocarbon material of a fused naphthalene ring, and a specific strong electron withdrawing group is introduced to a boron atom para-position. Compared with a compound disclosed in the prior art, the compound provided by the invention introduces a strong electron withdrawing group to a boron atom para-position of boron-nitrogen polycyclic aromatic hydrocarbon of a fused naphthalene ring, so that the emission spectrum of the material can be subjected to significant red shift (red shift from a yellow light band to a red light band and even an infrared band), and red light and even infrared light emission with high luminous efficiency and a narrow band can be realized. An electroluminescent device prepared from the compound provided by the invention shows relatively high luminescent color purity and relatively excellent luminous efficiency, and can meet the requirements of current enterprise production on high-performance luminescent materials.

A light-emitting element includes an anode, a cathode, and an electroluminescent layer between the anode and the cathode. The electroluminescent layer includes an emission layer containing a host material and a first fluorescent material. A bandgap of the host material is equal to or greater than 3.0 eV and equal to or less than 3.4 eV. A difference in a level of a lowest unoccupied molecular orbital between the host material and the first fluorescent material is equal to or greater than 1.0 eV. A difference in a level of a highest occupied molecular orbital between the host material and the first fluorescent material is equal to or less than 0.3 eV

The invention discloses a preparation method of a recyclable electric sensing coating for defect detection. The preparation method is characterized by comprising the following steps: S1, preparing an electroluminescent unit EL; s2, preparing field coupling microspheres FCM based on an electroluminescent unit EL; and S3, preparing the recoverable electric sensing coating based on the field coupling microsphere FCM. The method has the advantages that electric field sensing and an environmental protection concept are successfully combined, and a low-cost, high-sensitivity and lossless polymer interface defect detection method is created. By visualizing the distribution of the electric field around the defect, the REC not only solves the bottleneck of the traditional technology in the aspects of detection precision, economy and environmental protection (recycling), but also provides a new way for realizing the fine management and maintenance of the material state, and has far-reaching significance for promoting the stable operation in the fields of electrical equipment and electronic equipment.

The invention provides an electrical equipment defect identification method and system based on machine vision, and relates to the technical field of equipment defect identification, and the method comprises the steps: collecting and preprocessing a standard electroluminescent image, a standard infrared thermal image and a standard visible light image of a target photovoltaic string under different time windows through an imaging device carried by an unmanned aerial vehicle, and carrying out the collection of the standard electroluminescent image, the standard infrared thermal image and the standard visible light image; meanwhile, recording environmental parameters collected each time; analyzing visual defect features and attenuation gradient features in the standard electroluminescent image, and performing fusion verification by combining the standard infrared thermal image, the standard visible light image and the electrical performance data to obtain definite judgment of potential-induced attenuation; for the photovoltaic module which is diagnosed and judged to have potential-induced degradation, based on the environmental parameters, evaluating by using a time sequence analysis method to obtain the evolution rate of the potential-induced degradation, and mapping to generate the risk level of the potential-induced degradation; and generating a structured defect identification report. And the accuracy of defect identification of the power equipment is improved.

A method for manufacturing a display device that can easily achieve higher resolution is provided. A display device having both high display quality and high resolution is provided. A first EL film is deposited over a first pixel electrode, a first sacrificial film is formed to cover the first EL film and a first electrode, and the first sacrificial film and the first EL film are etched, so that a first EL layer is formed over the first pixel electrode. Then, the first sacrificial film is removed to expose the first electrode. Furthermore, a common electrode is formed over the first EL layer and the first electrode. The first EL film is etched by dry etching, and the first sacrificial film is removed by wet etching.

The invention belongs to the field of photoelectric device display, and particularly relates to an intrinsic stretchable electroluminescent device and a preparation method and application thereof. The intrinsic stretchable electroluminescent device is composed of an intrinsic stretchable transparent substrate, an intrinsic stretchable transparent anode, an intrinsic stretchable hole injection / transmission layer, an intrinsic stretchable luminescent layer, an intrinsic stretchable electron injection / transmission layer, a metal cathode and liquid metal. Each layer is prepared independently, the liquid metal is deposited on the metal cathode through blade coating, spraying, dispensing printing and the like, and the other layers are deposited into a film through a solution method or a vacuum evaporation method; in the preparation process, the intrinsic tensile property of the device can be realized without special structures (such as wrinkles, island bridges, snakelike, paper-cut and the like), and the method has the advantages of simple process, low cost, wide application range and universality.

The invention belongs to the technical field of electroluminescent fiber devices, and particularly relates to a dynamic color-changing electroluminescent fiber device and a preparation method thereof. The electroluminescent fiber device comprises a three-color electroluminescent fiber and a driving control circuit, the three-color electroluminescent fiber comprises an inner electrode conductive fiber, an outer electrode conductive fiber, three luminescent functional layers and a shared electrode; the driving control circuit comprises a lithium battery, an FPGA (Field Programmable Gate Array), an isolation inversion boost module and the like; the lithium battery supplies power to the whole circuit; the circuit system provides four independent output ports which are connected with the four electrodes; the three light-emitting functional layers are of a stacked structure formed by red, green and blue light-emitting active slurry through a step-by-step coating method, and the driving circuit independently controls the active light-emitting layers of the three colors, so that the light-emitting colors are free of crosstalk and can be regulated and controlled in real time, and dynamic color-changing light emitting of full-color-gamut light emitting is achieved. The color gamut is wide, the stability is high, and color crosstalk between the light-emitting layers is avoided; the method is good in repeatability, low in cost and suitable for industrial production.

A quantum dot light-emitting device and a manufacturing method therefor, and a display panel. The quantum dot light-emitting device comprises: a quantum dot layer and an electron transport layer adjacent to the quantum dot layer; the electron transport layer comprises a first group, and the quantum dot layer comprises a second group; the first group and the second group each comprise a hydrophilic group. The first group and the second group are combined by means of a hydrogen bond on contact surfaces of the quantum dot layer and the electron transport layer, to enhance an interface interaction force between the quantum dot layer and the electron transport layer, thereby reducing interface defects of the quantum dot layer and the electron transport layer, and improving the electroluminescence performance and stability of the quantum dot device.

Provided is a light-emitting material with polycyclic ligand. The light-emitting material is a metal complex with polycyclic ligand and may be used as a light-emitting material in an electroluminescent device. While maintaining a very narrow FWHM, these novel metal complexes can better adjust the light-emitting color of the device, reduce the driving voltage of the device or maintain the driving voltage at a low level, improve device efficiency, greatly increase the lifetime of the device, and provide better device performance. Further provided are an electroluminescent device and a compound composition.

The invention relates to a photovoltaic cell controllable defect generation method based on attention enhancement diffusion and large model driving prompt, and the method specifically comprises the following steps: firstly, obtaining a defect-free electroluminescent image, carrying out the standardization processing, and improving the overall quality of the image through brightness normalization and edge enhancement; performing text expression completion on the abstract defect category by utilizing a large language model to generate prompt description containing detail features; inputting the image and text prompts into a diffusion generation model; in the denoising process, an attention enhancement module is introduced to carry out key updating on a target area; and in an output stage, combining an image quality index and bus spacing assessment (BSA) to automatically screen generated results, and removing image samples with abnormal structures or unreasonable vision. According to the invention, by introducing a prompt driving mechanism and a region controllable editing strategy, the precision and diversity of defect image generation are improved, the problems of scarcity and class imbalance of photovoltaic image samples are effectively solved, and high-quality data supplement and controllable generation capability are provided for a defect detection system.

Suspension or colloid comprising liquid metal droplets bound with graphene-based particles, wherein the liquid metal is gallium or a gallium alloy, and the graphene-based particles are selected from a list of graphene, graphene oxide, reduced graphene oxide, graphene quantum dots, carbon nanotubes, or combinations thereof; respective ink, transparent stretchable conductor and obtention processes thereof; also a conductor obtainable by applying a coating of suspension, colloid, network, or ink according to any of the previous claims over a substrate, and laser sintering said coating, in particular the conductor being an electrode or a circuit trace or a circuit. Applications include optoelectronic devices, pressure or strain sensitive piezo resistive composited, pressure or strain sensors, temperature sensors, electroluminescent devices, photovoltaic devices, memory devices or electrodes for energy storage devices.

The invention relates to a method for evaluating the humidity and heat resistance of a packaging adhesive film, and the method comprises the following steps: providing a battery piece, and testing the electrical properties and EL images of the battery piece; the method comprises the following steps: dissolving a to-be-detected packaging adhesive film and sodium salt in a solvent to obtain a mixed solution; coating the battery piece with the mixed solution, and drying to form a salt-containing adhesive film; carrying out damp-heat aging treatment on the battery piece on which the salt-containing adhesive film is formed; after the damp-heat aging treatment, removing the salt-containing adhesive film on the battery piece, and testing the electrical property and EL image of the battery piece; and evaluating the heat and humidity resistance of the packaging adhesive film according to the electrical properties of the battery piece before and after the heat and humidity aging treatment and the change of the EL image. According to the evaluation method, the damp-heat aging resistance of the packaging adhesive film can be rapidly and quantitatively evaluated, the test cost is low, the test period is short, and the efficiency is improved.

The invention specifically relates to a multi-parameter state monitoring and fault diagnosis system for an intelligent circuit breaker, and relates to the technical field of state monitoring and fault diagnosis of power equipment. A surface / bulk charge and electroluminescent optical monitoring module; a mechanical-electrical performance correlation analysis module; and a diagnosis evaluation module. According to the invention, the dielectric property micro-change module adopts a low-frequency superposition excitation and partial discharge fingerprint spectrum fusion technology, and can sensitively capture dielectric micro-change of gradual deterioration such as damp and uniform aging; the surface / body charge and electroluminescent module performs mixed optical imaging through a non-contact electrostatic potential array and PMT / APD, and accurately recognizes surface charge accumulation and early electrical tree growth; the mechanical-electrical association module quantifies thermal mechanical stress accumulation and impact vibration influence based on FBG strain monitoring and multi-physics field coupling modeling.

Disclosed in the embodiments of the present application are boron-nitrogen compounds, an electroluminescent device and a display apparatus. The structural general formula of the boron-nitrogen compounds is shown as formula (I).

The invention belongs to the technical field of material physics, and particularly relates to a triboelectroluminescence composite material, a preparation method thereof and a triboelectroluminescence tactile device. The triboelectric electroluminescent composite material is formed by compounding a polymer matrix, a triboelectric reinforcing filler and fluorescent powder, the frictional electricity reinforcing filler is polytetrafluoroethylene; the fluorescent powder is ZnS: Cu; and the polymer matrix is polyvinylidene fluoride-hexafluoropropylene. The triboelectroluminescent composite material is used as a luminescent layer and a triboelectrification layer, and the triboelectroluminescent tactile device constructed by the triboelectroluminescent composite material and a friction material shows an ultra-low pressure detection limit of 0.42 Pa; and along with the increase of the pressure intensity, the output optical signal and electric signal are stronger. The strongest luminous intensity of the triboluminescence tactile device is 1.25 times of the indoor light intensity, and the triboluminescence tactile device can obviously emit light in outdoor sunlight.

The invention relates to a double-coordination passivated red-light perovskite quantum dot and a preparation method and application thereof. The preparation method comprises the following steps: preparing a monovalent cation precursor from cesium carbonate, 1-octadecene and oleic acid; preparing a lead source precursor from lead halide, zinc halide, 1-octadecene, diisooctyl hypophosphorous acid and oleylamine; thermally injecting the monovalent cation precursor into the lead source precursor, and cooling to prepare a perovskite quantum dot solution; performing anti-solvent purification on the perovskite quantum dot solution to obtain red light perovskite quantum dots; a process of preparing a double-coordination passivated red light perovskite quantum dot from the red light perovskite quantum dot and taurosulfonamide hydrochloride; the invention also discloses an application of the double-coordination passivated red light perovskite quantum dot prepared by the preparation method in preparation of an electroluminescent diode. The post-treatment passivation operation method is simple and convenient, and the quantum dot treated by the double-coordination ligand achieves the purpose of preparing the halide perovskite quantum dot with excellent optical performance and excellent performance of the prepared electroluminescent diode.

An electroluminescence display apparatus includes a substrate including a plurality of subpixel areas including an emission area and a non-emission area surrounding the emission area and a cathode contact area located on at least one side between the plurality of subpixel areas, a planarization layer disposed on the substrate and configured to overlap each of the emission area and the cathode contact area, a light emitting device disposed on the planarization layer and configured to overlap the emission area, and including a pixel electrode and a cathode electrode facing the pixel electrode, and a cathode contact electrode formed on the planarization layer and formed to overlap at least a portion of the non-emission area, wherein the cathode contact electrode includes one side surface exposed toward the cathode contact area, and the cathode electrode is in contact with the one side surface of the cathode contact electrode.

Provided are an electroluminescent device, a method of manufacturing the same, and a display device including the same, the electroluminescent device including a first electron auxiliary layer, a first light emitting layer, and a first electrode disposed on a first surface of a transparent electrode; and a second electron auxiliary layer, a second light emitting layer, and a second electrode disposed on a second surface of the transparent electrode, wherein the first electron auxiliary layer and the second electron auxiliary layer each include a plurality of zinc oxide nanoparticles, a ratio (t1 / t0) of a thickness (t1) of the first electron auxiliary layer to a thickness (t0) of the transparent electrode and a ratio (t2 / t0) of a thickness (t2) of the second electron auxiliary layer to the thickness (t0) of the transparent electrode are each in the range of about 0.1 to about 4.0.

An electroluminescent device includes a first electrode and a second electrode, which are spaced apart from each other (e.g., facing each other), and an emission layer disposed between the first electrode and the second electrode. The emission layer is configured to emit first light having a predetermined peak emission wavelength, and includes a semiconductor nanoparticle and a carbon nanoparticle. The carbon nanoparticle has a dimension of greater than or equal to about 2 nm and less than or equal to about 50 nm.

This application relates to the field of insulated switch application technology, and particularly to a method and apparatus for characterizing partial discharge features in ultra-high voltage direct current (UHVDC) GIS. The method includes: generating a partial discharge pulse sequence based on the light signals generated by electroluminescence and gas ionization emission in the UHVDC gas-insulated switchgear; generating a spectrum of at least one parameter pair based on the amplitude and corresponding time of the partial discharge pulses; and generating a feature fingerprint map of at least one parameter pair based on the spectrum. The method also involves extracting at least one statistical feature from the kernel density sequence of the at least one parameter pair based on the feature fingerprint map, and generating a characterization result of the partial discharge feature based on the at least one statistical feature. This solves the problem that partial discharge detection is easily affected by electromagnetic interference, mechanical vibration, and environmental noise, making it difficult to effectively extract and accurately identify the actual partial discharge signal, thus affecting the accuracy and reliability of the detection results.

The invention relates to the technical field of electroluminescent materials and devices, in particular to an alcohol-soluble host material for a carbon dot electroluminescent device as well as a preparation method and application of the alcohol-soluble host material. The alcohol-soluble host material for the carbon dot electroluminescent device has a structure as shown in a formula I. According to the invention, phosphate ester is introduced into the alcohol-soluble host material as a side chain, so that on one hand, the solubility of the host material in ethanol can be effectively improved, and on the other hand, the film-forming ability of the host material can be effectively improved. Diphenylamine, carbazole and carbazole derivatives are used as donors, triazine is used as an acceptor, and the host material can be endowed with the characteristic of bipolar transmission. Test results show that the alcohol-soluble host material provided by the invention has excellent alcohol solubility and film-forming ability comparable to that of a polymer host material, and also has good hole and electron transport ability, so that carrier transport is effectively balanced, and the luminous efficiency of a host-guest doped electroluminescent device is improved.