27 results about "Green emission" patented technology

The invention discloses a full-spectrum white-light LED, a preparation method thereof and a display device, and the full-spectrum white-light LED comprises an integrated three-wavelength blue-light LED chip, and also comprises a fluorescent layer and a filtering conversion layer which sequentially coat the integrated three-wavelength blue-light LED chip. The filtering conversion layer in the full-spectrum white light LED structure can effectively filter blue light, meanwhile, high transmission is kept under the long wavelength, efficient cyan light emission of the carbon dots compensates reduced blue light, balanced spectrum composition is ensured, and high-quality and safe full-spectrum white light emission is achieved.

The present disclosure discloses a luminescent N-heterocyclic chalcogenone complex having light-emitting properties and exhibiting air stability. The complex emits green emission at a wavelength in the range of 520 – 550 nm. The present disclosure also reveals a process for preparing the N-heterocyclic chalcogenone with ease of bulk synthesis and short reaction time. Ref. Figure 1

The present invention discloses a chiral heteroleptic nine-coordinate rare earth complex and its preparation method and application, belonging to the field of organic luminescent materials. This chiral rare earth complex consists of three anionic coumarin-derived diketone ligands (Coum) ‑ The chiral bis-oxazoline-derived enantiomerically pure ligands 1R,2R-2,6-bis(4-phenyl-2-oxazoline-2-yl)pyridine (1R,2R-Ph-PyBox) or 1S,2S-2,6-bis(4-phenyl-2-oxazoline-2-yl)pyridine (1S,2S-Ph-PyBox) were self-assembled with rare earth ions in alcohol solution. Thanks to the combination of the excellent photophysical properties of the Coum ligand and the strong chiral induction ability of the chiral Chiral-Ph-PyBox ligand, the two Tb 3+ The enantiomers [Tb(Coum)3(1R,2R‑Ph‑PyBox)](2)and[Tb(Coum)3(1S,2S‑Ph‑PyBox)](5) not only achieve bright and high color purity characteristic green emission (Φ PL =74%), and also obtained a strong excited state CPL activity (|g lum |=0.097‑0.103) and significantly enhanced antenna ligand center absorption behavior (ε 320nm =47820-47940M ‑1 cm ‑1 ). Complexes 2 and 5 have magnetic dipoles 5 D4→ 7 The circular polarization brightness at the F5 transition position (B CPL ) can be as high as 1132.7-1205.8M ‑1 cm ‑1 .

The present invention provides a driving method, a driving device, a debugging method, and a display device for a display panel, wherein the display panel includes a plurality of display pixels located in a display area, a plurality of redundant pixels located in a non-display area to one side of the display area, a plurality of gate lines extending along a first direction, and a plurality of data lines along a second direction intersecting the first direction. The driving method includes: detecting whether a to-be-displayed image is a preset image, wherein the preset image is specifically an image in which the plurality of display pixels are alternately arranged along the first and second directions according to a first brightness and a second brightness, the first brightness being greater than the second brightness; and if so, controlling at least one row of redundant pixels among the plurality of redundant pixels to maintain consistency in data signal and polarity with a first row of display pixels among the plurality of display pixels, wherein the at least one row of redundant pixels is arranged adjacent to the first row of display pixels, to avoid poor green emission in the first row.

The invention discloses a method for obtaining circularly polarized luminescence by covalently anchoring a chiral liquid crystal through light-induced anthraquinone molecules. The method comprises the following steps: S1, adding a solution of a chiral dopant into nematic liquid crystals, stirring until the solution is transparent, and obtaining a binary assembly after a solvent is volatilized; s2, adding a solution of an achiral object into the binary assembly, and volatilizing the solvent to obtain a ternary cholesteric liquid crystal assembly; the achiral guest is a polycyclic conjugated quinone derivative. Under the induction of 365nm ultraviolet light, a diaryl acetylene part and anthraquinone molecules in the ternary cholesteric liquid crystal assembly are covalently bound, so that a new luminous body with a green emission color is formed, and the luminous body generated in situ is well arranged in an original liquid crystal and is beneficial to generating nearly pure circularly polarized light; more importantly, a new method is provided for construction of the circular polarization luminescent material through the non-covalent doping-covalent anchoring mode.

A display apparatus including a light emitting device is provided. The light emitting device may overlap an emission region of the device substrate. Each of the emission regions may display a different color than an adjacent emission region. Each of the light emitting devices may have a stacked structure of a lower electrode, a light emitting unit, and an upper electrode. For example, a light emitting unit of each light emitting device may include an emission stack having a stacked structure of a red emission material layer and a green emission material layer. The lower electrode of at least one of the light emitting devices may have a different resistance than the lower electrode of an adjacent light emitting device. Therefore, in the display device, the overall brightness can be improved.

A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an intermediate layer provided between the first electrode and the second electrode and including emission layers patterned into red and green emission layers of respective subpixels, wherein the red emission layer includes a red dopant having a horizontal dipole moment, and the green emission layer includes a green dopant having a horizontal dipole moment, and the horizontal dipole moment of the green dopant is greater than the horizontal dipole moment of the red dopant.

The invention discloses a CFB boiler SO2 emission optimization control method suitable for deep peak regulation, and belongs to the technical field of thermal power generating unit green emission reduction, and the method comprises the following steps: S1, mechanism analysis; s2, constructing a partition SO2 emission model; s3, simulation verification and dynamic characteristic research; and S4, regulating and controlling the putting amount of the desulfurizing agent by adopting a stepped generalized predictive control method. According to the CFB boiler SO2 emission optimization control method adapting to deep peak regulation, the SO2 concentration prediction precision and the system adaptability under the variable load working condition are improved; the cooperative control capability of the sulfur-based pollutants under the complex boundary is enhanced, and SO2 emission control during deep peak regulation of the supercritical CFB boiler is optimized.

The present invention relates to a fluorescence-specific bio-compatible zinc oxide (ZnO) nanoparticles for anticounterfeiting ink, wherein the ZnO nanoparticles show emission only for UV excitation in the range of 260-365 nm and wherein photoluminescence (PL) of the ZnO nanoparticles have a sharp near band edge emission (NBE) at 378 nm and a broad green emission at 520 nm due to deep level emission (DLE). The present invention also relates to a facile one-step reagent-free synthesis of the ZnO nanoparticles via femtosecond pulsed laser ablation in liquid (fs-PLAL) technique for anticounterfeiting inks. The fluorescence-specific bio-compatible ZnO nanoparticles of the present invention can be directly used as an anticounterfeiting fluorescent ink without adding any binder.

Disclosed is a light emitting display device including a substrate having first to fourth subpixels, first to fourth anodes provided respectively on the first to fourth subpixels, an emission unit provided on the first to fourth anodes, the emission unit including two or more blue stacks and a phosphorescent stack including at least a yellowish green emission layer and a green emission layer, a cathode provided on the emission unit, a red filter and a color conversion layer provided between the substrate and the first anode, a green filter provided between the substrate and the second anode, and a blue filter provided between the substrate and the third anode, wherein the first anode has a first thickness, and at least one of the second to fourth anodes has a second thickness greater than the thickness of the first anode.

Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer disposed between the first electrode and the second electrode and including an emission layer patterned into a red emission layer and a green emission layer for a corresponding sub-pixel, wherein the red emission layer includes a red dopant having a horizontal dipole moment, and the green emission layer comprises a green dopant having a horizontal dipole moment, and the horizontal dipole moment of the green dopant is greater than the horizontal dipole moment of the red dopant.

According to the assembly type photovoltaic panel wall body, the photovoltaic panel is arranged on the outer surface of the assembly type fireproof wall body, the photovoltaic panel is fixedly connected with the inter-panel connecting piece of the fireproof wall body through the photovoltaic panel connecting piece, overall assembly of the photovoltaic panel of the fireproof wall body is achieved, and the photovoltaic panel can receive solar energy and then convert the solar energy into electric energy to be supplied to a building. And the green emission reduction effect is achieved.

A display apparatus including light-emitting devices is provided. The light-emitting devices can overlap emission areas of a device substrate. Each of the emission areas can display a different color from adjacent emission area. Each of the light-emitting devices can have a stacked structure of a lower electrode, a light-emitting unit and an upper electrode. For example, the light-emitting unit of each light-emitting device can include an emission stack having a stacked structure of a red emission material layer and a green emission material layer. The lower electrode of at least one of the light-emitting devices can have a different resistance from the lower electrodes of adjacent light-emitting devices. Thus, in the display apparatus, the overall luminance can be improved.

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer disposed between the first electrode and the second electrode and including an emission layer patterned into a red emission layer and a green emission layer for a corresponding sub-pixel, wherein the red emission layer includes a red dopant having a horizontal dipole moment, and the green emission layer comprises a green dopant having a horizontal dipole moment, and the horizontal dipole moment of the green dopant is greater than the horizontal dipole moment of the red dopant.

A display system includes a display panel configured to emit polarized light having a first polarization state and substantially distinct blue, green and red emission spectra having respective blue, green and red full widths at half maxima (FWHMs). The display system includes a reflective polarizer configured to reflect the polarized image light as a first reflected polarized image light. For substantially normally incident light and for the first polarization state, the reflective polarizer has a reflectance of greater than about 60% across each of the blue and red FWHMs, and a transmittance of at least about 50% for at least a first wavelength between the FWHMs of the blue and green emission spectra, and for at least a second wavelength between the FWHMs of the green and red emission spectra.

A white organic light-emitting device including a first electrode, a second electrode, the second electrode and the first electrode facing each other, a blue light-emitting stack, a phosphorescent light-emitting stack including a hole transport layer, an electron transport layer, a red light-emitting layer, and a green light-emitting layer that includes a hole-transporting host, an electron-transporting host, a first dopant having a green emission peak, and a non-emissive second dopant, where the blue light-emitting stack and the phosphorescent light-emitting stack are between the first electrode and the second electrode, and a charge generation layer interposed between the blue light-emitting stack and the phosphorescent light-emitting stack.

The invention relates to the technical field of preparation of blue-green fluorescent powder, in particular to blue-green fluorescent powder as well as a preparation method and application thereof. The general chemical formula of the blue-green fluorescent powder is (Lu2-a-bR1 + aCeb) (L4-xMx) SiO12, wherein R is at least one of Ca < 2 + > and Sr < 2 + >; l is at least one of Al < 3 + >, Ga < 3 + > and In < 3 + >; m is at least one of Sb < 3 + >, Ga < 3 + > and In < 3 + >; a, b and x are all stoichiometric numbers of elements, a is greater than or equal to 0.01 b and less than or equal to 0.5 b, b is greater than or equal to 0.0001 and less than or equal to 0.3, and x is greater than or equal to 0.01 and less than or The fluorescent powder has the advantages that the fluorescent powder is simple in preparation method and free of pollution, has the characteristics of high efficiency, broadband blue-green emission and the like, and has relatively high efficiency when being applied to a white-light illumination LED (Light Emitting Diode); the blue-green fluorescent powder can be mixed with commercial red fluorescent powder for use, and a white light source with adjustable color temperature and high color rendering can be packaged.

This invention discloses a high color rendering white LED material made of rare-earth-doped Cs2KYCl6, belonging to the field of LED material preparation technology. It addresses the technical problem that the uniformity of white light and the aging resistance of existing LED materials need further improvement. This invention adopts a layered composite structure, in which the light-emitting chip is formed by Eu-modified Cs2KYCl6 and optical liquid silicone rubber, providing stable blue-green emission. The encapsulation layer is composed of porous fluorinated aluminum borosilicate microspheres, red oxychloride niobate powder, and fluorosilicone sealant. The porous microspheres achieve uniform light field scattering, the red powder supplements long-wavelength radiation, and the resin and inorganic components form a stable protective layer. The multi-phase synergistic effect enables the material to have a continuous and balanced white light spectrum, high brightness and color uniformity, and maintain low light color drift and attenuation under various aging conditions.

An electroluminescent display device includes first and second electrode facing each other; and a quantum dot emission layer disposed between the first and second electrodes, wherein the quantum dot emission layer includes a red emission layer disposed in a red pixel, a green emission layer disposed in a green pixel, and a blue emission layer disposed in a blue pixel, wherein the red emission layer includes red light emitting quantum dots, the green emission layer includes green light emitting quantum dots, the blue emission layer includes blue light emitting quantum dots, and wherein the blue emission layer is configured to exhibit first emission spectrum including a blue luminescent peak and a first luminescent peak different from the blue luminescent peak, wherein the green emission layer is configured to exhibit a second emission spectrum including a green luminescent peak and a second luminescent peak different from the green luminescent peak.

The present disclosure relates to a detection system and method for trace impurities in hydrogen, which comprises a sample processing module, an exogenous gas supply module, a control gas preparation module, a detection module and a tail gas processing module. The sample processing module comprises a sample supply submodule, a first three-way valve and a system pretreatment submodule. The exogenous gas supply module comprises a hydrogen supply submodule and a nitrogen supply submodule. The detection module comprises an infrared spectrometer and a gas cell. The detection system is simple to operate. Using the detection system, multiple trace impurities in hydrogen can be detected simultaneously in one detection. The detection system has the advantages of low detection limit, high detection precision, good repeatability and safe and green emission of hydrogen-containing tail gas.

The invention discloses a high-purity green luminescent and high-optical temperature measurement sensitivity material and a preparation method thereof, and belongs to the technical field of optical luminescent materials. The chemical general formula of the high-purity green luminescence and high-optical temperature measurement sensitivity material is NaBi < 0.89-x > Yb < 0.1 > Er < 0.01 > Ca < x > (MoO4) 2, x is equal to 0.01-0.10, the material is a tetragonal system, the space group is I41 / a, rare earth erbium ions (Er < 3 + >) are used as active ions, rare earth ytterbium ions (Yb < 3 + >) are used as sensitizing ions, and green up-conversion emission near 530 nm and 550 nm can be generated under near-infrared excitation; the Er < 3 + > upconversion green emission ratio and the green light purity are improved by introducing non-equivalent ions Ca < 2 + > to regulate and control a matrix lattice environment and a charge compensation state, and meanwhile, the optical temperature measurement sensitivity based on the thermal coupling energy level is remarkably enhanced, so that the Er < 3 + > upconversion green emission compound has potential and wide application value in the fields of high-purity green light emission and optical temperature measurement.

The invention discloses a CFB boiler NOx emission optimization control method suitable for deep peak regulation, and belongs to the technical field of green emission reduction of thermal power generating units, and the method comprises the following steps: S1, constructing a key parameter model; s2, constructing a partition NOx emission model; s3, performing simulation verification and dynamic characteristic test; and S4, designing a control strategy. According to the CFB boiler NOx emission optimization control method suitable for deep peak regulation, the dynamic regulation and control precision of the combustion process is improved by establishing the regional reaction dynamic NOx model; the emission characteristics of nitric oxide in the wide-load operation and rapid load changing process are analyzed, and the defect of NOx emission control in the rapid load changing process is overcome; dynamic optimization control is realized by means of multi-step prediction, rolling optimization and online parameter identification, and rapid tracking of pollutant concentration and collaborative optimization of operation cost are achieved.

This invention provides a prefabricated photovoltaic panel wall, in which photovoltaic panels are installed on the outer surface of the prefabricated fire wall body. The photovoltaic panels are fixedly connected to the fire wall body through photovoltaic panel connectors and inter-panel connectors, realizing the overall assembly of the photovoltaic panels of the fire wall body. The photovoltaic panels can convert solar energy into electrical energy to supply the building's electricity after receiving solar energy, achieving the effect of green emission reduction.

The invention discloses a Sb < 3 + >-doped lead-free double perovskite luminescent material, a preparation method and application thereof.The material takes Rb2K (1-x) InCl6 as a matrix and doped xSb < 3 + > as luminescent ions, the local structure of a crystal is regulated and controlled through ion doping, meanwhile, high crystallinity and controllable size of the crystal are achieved in combination with an anti-solvent mediated crystallization method, and the luminescent material is prepared. Therefore, the light absorption and radiation recombination efficiency of the material is effectively improved. The Sb < 3 + > doped lead-free double perovskite luminescent material disclosed by the invention shows tunable green emission under excitation of ultraviolet light of 320 nm, the color temperature range is 5778-6668 K, and the photoluminescence quantum yield (PLQY) is as high as 93.75%. According to the Sb < 3 + >-doped lead-free double perovskite luminescent material, the chemical general formula of the luminescent material is Rb2K (1-x) InCl6: xSb, and the value range of x in molar stoichiometry is 0% lt; x is less than or equal to 15%.

A near-eye display device system includes a first lens and a frame supporting the first lens in front of a first eye of a user. The system also includes a display screen having a red, green, blue (RGB) emission spectra which may include a red emission band having a full width half maximum of 70 nm + / -15nm, and a green emission band having a full width half maximum 70 nm + / -15nm. The first lens may include a dispersion correction lens and has a numerical aperture of 0.1 or less, or no-dispersion correction and a numerical aperture of 0.25 or less.

Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.