Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

939results about How to "Improve life expectancy" patented technology

Streetlight network control method and network structure thereof

The invention discloses a streetlight network control method, comprising the steps of: immediately turning on a streetlight when the streetlight acquires a vehicle passing condition and measures a measured vehicle speed signal through a signal acquisition unit; meanwhile, commanding a plurality of streetlights ahead to be turned on for several seconds according to a preset corresponding value between the vehicle speed and the number of the turned-on streetlights ahead as well as a preset corresponding value between the vehicle speed and the light-on time; and turning off the streetlight after the vehicle runs through the streetlight. Meanwhile, by monitoring ambient brightness, vehicle traffic flow and ambient humidity and regulating the illumination brightness of the streetlight, invalid illumination is avoided. The control method disclosed by the invention has the advantages that the proper illumination brightness can be provided by the streetlights according to specific environments in bustling downtown areas and solitude road sections, and the electricity can be saved by 30%; and the method is completely adopted in the solitude road sections, the electricity can be saved by 70% in average and 90% at most. If an LED light source is adopted, the service life of the streetlight can be prolonged by 5 times.
Owner:WUHU LANJIANG LIGHTING

Solar cell with composite dielectric passivation layer structure and preparation process thereof

The invention discloses a solar cell with a composite dielectric passivation layer structure and a preparation process thereof. A silicon oxide film, an alumina film and a silicon nitride or silicon oxynitride film are deposited in turn on the front, back and sides of a p-type silicon substrate to form a composite dielectric film on the whole surface, and windows are opened locally to lead electrodes out. Through aluminum oxide, silicon dioxide, silicon oxynitride, silicon nitride with different refractive indexes and a back surface passivation layer with a laminated structure of the materials, the back surface recombination rate is greatly reduced, the back reflectivity is improved, the CTM of a module is reduced, and the light attenuation and heat-assisted light attenuation and the anti-PID performance of the cell are improved. The structure can be made on a boron/gallium-doped p-type monocrystalline silicon, p-type polycrystalline silicon or p-type monocrystalline-silicon-like substrate, and a passivation method based on the composite dielectric film passivation structure can be used to manufacture PERC cells, double-sided PERC+ cells and imbricate PERC cells. Based on the preparation process steps and sequence, the corresponding preparation mode and the process parameter range of the laminated structure, the making of the cell can be well completed.
Owner:TONGWEI SOLAR ENERGY CHENGDU CO LID +2

Display panel and display device

The invention discloses a display panel and a display device. The display panel comprises a substrate and multiple pixel units located on the substrate, each pixel unit comprises a driving circuit anda light-emitting element, and each driving circuit is located between the substrate and the corresponding light-emitting element and used for driving the corresponding light-emitting element to emitlight; one or more light-emitting elements are micro LEDs; for the pixel units with the light-emitting elements as the micro LEDs, each driving circuit at least comprises a first thin film transistor,a source electrode and a drain electrode of each first thin film transistor are located on a corresponding source and drain electrode layer, and a first electrode of each micro LED is electrically connected with the source electrode or the drain electrode of the corresponding first thin film transistor; each pixel unit with the light-emitting element as the micro LED further comprises a metal structure, each metal structure is located between the substrate and the corresponding source and drain electrode layer, and the source electrode or the drain electrode of each first thin film transistorelectrically connected with the first electrode of the corresponding micro LED is electrically connected with the corresponding metal structure. According to the technical scheme, the temperature ofthe micro LEDs is effectively lowered, and the problem is solved that the light-emitting efficiency of the micro LEDs is lowered.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products