91 results about "Enhanced luminescence" patented technology

The invention provides a display device, a display panel thereof, and a transparent display panel. A first sub-pixel of the transparent display panel is arranged to comprise a light-transmitting area and a non-light-transmitting area, wherein the non-light-transmitting area is provided with a first light reflecting anode, a first light-emitting structure layer and a first cathode in a stacked mode, and the light-transmitting area completely wraps the non-light-transmitting area, or the non-light-transmitting area completely wraps the light-transmitting area. The light emitted by the first light-emitting structure layer can be reflected back and forth between the first light-reflecting anode and the first cathode for multiple times to form a microcavity effect, so that the light-emitting efficiency is enhanced, the frequency spectrum is narrowed, and the display quality of the transparent display panel is improved; when the full screen displays, the color coordinates of the light-transmitting display area and the non-light-transmitting display area are basically consistent, and deviation is avoided. The non-light-transmitting area is completely wrapped by the light-transmitting area, or the non-light-transmitting area is completely wrapped by the light-transmitting area, so that light emitted by one first sub-pixel can be uniformly diffused to all pixels around, the color coordinate offset is reduced, and the color rendering consistency under different visual angles is improved.

The invention discloses a dual-enhanced chemiluminescent immunoassay method based on metal enhanced luminescence and nano particle labelled amplification. According to the dual-enhanced chemiluminescent immunoassay method based on metal enhanced luminescence and nano particle labelled amplification, metal nano particles replace conventional polystyrene nano microspheres, and luminescence substances are lebelled on the surface of an isolation layer spaced from the surfaces of the metal nano particles by 5-20nm; chemiluminescence of luminescence substances on sensitized metal nano particles is coupled to plasma waves on the surfaces of the metal nano particles; after resonance is generated, the chemiluminescence is emitted in the form of relatively high light intensity and relatively high attenuation speed. On the basis of a conventional chemiluminescence immunoassay technology, a metal enhanced luminescence technology and a nano particle labelled amplification technology are organically integrated; therefore, the dual-enhanced chemiluminescent immunoassay method has the advantages of high sensitivity, high detection speed and the like.

The invention relates to a GaN-based LED, which comprises a substrate, an epitaxial layer, a current extension layer and a P electrode, wherein the substrate is provided with a front surface and a back surface; the epitaxial layer is formed on the front surface of the substrate and comprises a P-type layer, a light-emitting region and an N-type layer from top to bottom in sequence; the current extension layer is formed on the P-type layer; and the P electrode is formed on the current extension layer. The GaN-based LED is characterized by further comprising a first reflecting layer and a second reflecting layer, wherein the first reflecting layer is positioned between the current extension layer and the epitaxial layer and is zonally distributed on a marginal area of the epitaxial layer; and the second reflecting layer is positioned on the back surface of the substrate. According to the invention, the zonal or annular first reflecting layer is arranged on the marginal area of the surface of the LED epitaxial layer, the probability of taking light from the side surface of the LED can be enhanced, namely, the proportion of light emitted from the light-emitting layer, which is emergent to the upper side to light emitted from the light-emitting layer, which is emergent to the side surface, is controlled, therefore the emergent light distribution uniformity of a chip is adjusted, and the nonuniform heat-radiation phenomenon is improved.

The invention belongs to the field of a rare earth-polymer composite luminescent material, and specifically relates to a luminescent material of naphthoic acid functionalized polymer and rare earth complex and a preparation method of the luminescent material. In the preparation method, a naphthalene acid ligand with coordination and sensitization dual-function roles on rare earth ions is introduced into a polymer side group; and the ligand not only can form stable polymer-rare earth complex together with the rare earth ions, but also has a large conjugate rigid plane, can greatly enhance energy transfer action of the polymer ligand on the rare earth ions, and enhances the luminescence property. The method disclosed by the invention not only is easy to achieve, but also solves the problems that the rare earth complex in the prior art has dispersion inequality and poor polymer substrate performance.

The invention discloses thallium-doped cesium iodide composite film and a preparation method thereof. The composite film is formed by sequentially coating a copper film layer, a thallium-doped cesium iodide film layer and a moistureproof protecting film layer on a base material from the upper part to the lower part; the preparation of the composite film can adopt the existing film coating technology to sequentially coating the copper film layer, the thallium-doped cesium iodide film layer and the moisture protecting film layer on the base material. Research shows that the composite film has the advantages that as a metal Cu film and a CsI:Tl film have efficient metal plasma enhanced luminescence effect, compared with a film, without an added metal Cu film layer, the luminescent intensity of the composite film is furthest increased by more than 85 times in a 400 to 450 nm blue band, and the composite film has strong blue-light emitting feature, and is expected to be applied to photoelectron fields, such as LED and the like.

A photoluminescent thermoplastic multi-component fiber comprising a pigmented component and processing enhanced luminescence and mechanical properties. Most suitably, the pigmented component comprises between 5% and 30% by weight of photoluminescent pigment and the pigmented component is between 20% and 50% by weight of the multi-component fiber. The multi-component fiber can be formed from either POY or FDY, and the multi-component fiber can have many different cross section shapes including sheath/core. These single component or multi-component fibers can be made into a variety of fabrics. Additionally, single component or multi-component fibers can also be formed into single or multi-component meltblown and spunbonded fabrics.

There is provided a light-emitting device with enhanced luminescence efficiency, which simultaneously exhibits excitation enhancement and emission enhancement of a light-emitting material by controlling two or multiple surface plasmon resonance bands of anisotropic metal nanoparticles to be formed in a near ultraviolet light range and a visible light range and optimizing overlapping of a wavelength of a near ultraviolet or blue light source with an absorption wavelength and an emission wavelength of the light-emitting material. There is also provided a light-emitting device with improved color gamut and luminance, which simultaneously exhibit emission enhancement of different types of light-emitting materials by controlling two or multiple surfaces plasmon resonance bands of anisotropic metal nanoparticles to be overlapped with absorption and emission wavelengths of two or more light-emitting materials having different emission wavelengths from one another.

The invention is directed to a resolution-enhanced luminescence microscopy method in which a sample is excited to the emission of luminescence radiation through irradiation by excitation radiation, and an image of the luminescing sample is acquired. A first partial volume of the sample is irradiated by a first laser radiation field of the excitation radiation, and a second partial volume of the sample is irradiated by a second laser radiation field of the excitation radiation. The first partial volume of the sample and the second partial volume of the sample overlap one another partially but not completely. Only the first laser radiation field is modulated with a first frequency, and luminescence radiation is detected from the first partial volume of the sample with modulation filtering so that luminescence radiation from the second partial volume of the sample is suppressed.

The invention relates to a manufacturing method of a thin film electroluminescence device with doped semiconductor quantum dots being cladded with silica gel. The thin film electroluminescence device comprises an ITO (Indium Tin Oxide) conductive glass layer, a first insulating layer, a light emitting layer, a second insulating layer and a metal Al electrode which are arranged in sequence. The light emitting layer is formed by cladding doped semiconductor quantum dots with SiO2 gel; because the light emitting layer is prepared by cladding the doped semiconductor quantum dots with the silica gel, the compact degree of the light emitting layer can be improved, the breakdown resistance capability of the light emitting layer is effectively enhanced, the service life of the thin film electroluminescence device is prolonged, and the light emitting efficiency is improved. Meanwhile, in the thin film electroluminescence device of which the light emitting layer is prepared by cladding the doped semiconductor quantum dots with the silica gel, the thickness of the light emitting layer can be controlled relatively easily. Meanwhile, the manufacturing method disclosed by the invention can realize thin film electroluminescence devices with different light emitting intensities. The invention further provides the manufacturing method of the thin film electroluminescence device.

The invention provides a red light enhanced core-shell upconversion luminescent nano-carrier and a preparation method therefor. The material has the chemical expression of NaGdF4:Yb,Er,Mn@NaGdF4:Yb@gel, wherein @ represents coating, and gel represents gelatin. The material provided by the invention is technically characterized in that homogeneous and monodisperse nanocrystals are produced by adopting a high-temperature pyrolysis method, which is environment-friendly and is easy and feasible in operation, and hydrophobic surfaces of nanoparticles are coated with gelatin by adopting a self-assembly method, so as to form NaGdF4:Yb,Er,Mn@NaGdF4:Yb@gel, of which the surface is hydrophilic and has a large number of active groups. The nano composite material prepared by the scheme has a red light enhanced luminescence property, maintains relatively strong luminescence total intensity and has a hydrophilic surface with a large number of active groups. The nano-carrier has enhanced red light emission and relatively strong fluorescence intensity and meanwhile has a hydrophilic active surface, thereby being capable of serving as an excellent photosensitizer carrier.

Described is a method for the high spatial resolution luminescence microscopy of a sample which is marked with marking molecules which can be activated by way of a switch-over signal such that only then can they be stimulated to emit luminescent radiation, wherein the method has the following steps a) introducing the switch-over signal onto the sample such that only a partial amount of the marking molecules present in the sample are activated, wherein, partial regions exist in the sample, in which partial regions only exactly one molecule, which is activated by the switch-over signal, is located inside a volume which is delimited by a diffraction-limited maximum resolution of a detection of luminescent radiation, b) stimulating the activated molecules to emit luminescent radiation, c) detecting the luminescent radiation with diffraction-limited resolution and d) generating image data from the luminescent radiation recorded in step c), wherein the marking molecules, which emit the geometric locations of the luminescent radiation, indicate with a spatial resolution which is increased to above the diffraction limit, wherein e) the detection of the luminescent radiation in step c) or the generation of the image data in step d) comprises a non-linear increase, which prefers higher intensities, of recorded luminescent radiation in order to enhance the spatial resolution to above the diffraction-limited resolution.

The invention provides a stable red fluorescent material, its preparation method and a method for enhancing luminous efficiency. The stable red fluorescent material is a novel borate red fluorescent material used for white light LEDs, the chemical composition of the stable red fluorescent material is Na3Ca1-2xB5O10 : xEu<3+>, xM<+>, wherein the Na3Ca1-2xB5O10 is taken as a matrix, Eu<3+> is takenas a doped rare earth ion, M<+> is a charge compensation ion and is one or more of alkali metal ions Li<+>, Na<+>, K<+>, wherein 0.05<=x<=0.3. According to the invention, the borate red fluorescent material Na3Ca1-2xB5O10: xEu<3+>, xM<+> is synthesized by a two-step calcining method, the prepared borate red fluorescent material is capable of being excited by purple light LEDs or blue light LEDs of 200 to 470 nm, and the stable red light with high strengths ranged from 580 to 630 nm is emitted. The borate red fluorescent material is used for white light LEDs excited by blue light, ultraviolet light or near ultraviolet light.

Metal enhanced luminescence using alloy nanoparticles offers additional degrees of freedom for tuning their optical properties by altering atomic composition and atomic arrangement when compared to pure metal nanoparticles such as gold and silver. Surface plasmon resonance wavelengths of silver-copper nanoparticles were tuned in the visible and near infrared region by changing annealing temperature. Strong emission enhancement of luminophores at the vicinity of the Ag—Cu nanoparticles was shown when the SPR spectrum was tuned to produce maximum spectral overlap. As the SPR spectrum can be easily tailored, this platform can be effectively used to enhance luminescence of different luminophores.

The invention discloses a QLED (quantum dot light emitting diode) and a preparation method thereof. The preparation method comprises the following steps: A, sequentially depositing a hole injection layer and a hole transmission layer on the surface of a substrate; B, depositing a quantum dot light emitting layer on the surface of the hole transmission layer; C, sequentially depositing an electron transmission layer and an electron injection layer on the surface of the quantum dot light emitting layer; and D, manufacturing an anode on the substrate on which various functional layers are deposited, wherein the anode comprises an interface modification layer for amplifying functions. According to the preparation method, the interface modification layer is increased in the anode, so that the work function of the electrode is increased, the injection barrier is increased, the electron hole can be well balanced in the quantum dot light emitting layer, the effective recombination probability can be improved, and the QLED light emitting performance can be enhanced.

The present invention makes possible video expressions with increased feeling of brightness and increased contrast feeling and to be able to prevent the feeling of brightness and the contrast feeling from becoming unnatural during execution of the multi display. This video display device comprises: a control portion (a signal processing portion (1); an area-active-control/luminance-stretch-portion (4)) that controls a displaying portion (8) and a backlight portion (6); and a display instruction detection portion (13a) that detects display instructions of first and second input video signals. The control portion stretches and increases the luminance of the backlight portion (6), and also controls a light emitting portion enhancement processing according to a result of the detection. In the light emitting portion enhancement processing, the display luminance of a light emitting portion is enhanced by producing a histogram by integrating number of pixels for a predetermined feature amount relating to the brightness of the input video signal, detecting an upper region of a predetermined range of the histogram as the light emitting portion, and reducing luminance of a video signal of non-light emitting portion except the light emitting portion of the input video signal.

An electroluminescence device having enhanced overall luminescence or brightness resulting from a plurality of luminescence groups arranged in a stacked configuration, such that the luminescence output from one luminescent group is caused to blend with the luminescent output from one or more additional luminescent groups to provide an improved luminescence output that enhances the intensity of the overall luminescence generated by the device as compared to a device with a single luminescent group, or electrode assembly containing such. In some aspects, the improvement or increase may be at least additive, and in some cases synergistic. The device can include a multi-layer diamond electroluminescence device configured to provide enhanced luminescence intensity, wherein the device comprises a plurality of operating pairs of electrode layers; at least one diamond-like carbon layer disposed between each of the operating pairs of electrode layers, and electrically coupled to an electrode layer within a respective pair of electrode layers; and at least one luminescent layer disposed between each of the operating pairs of electrode layers, and electrically coupled to the diamond-like carbon layer and the respective pair of electrode layers, such that upon receiving electrons from the diamond-like carbon layer the luminescent layer illuminates.

Provided herein are isolated polynucleotide encoding modified click beetle luciferase polypeptides that have enhanced luminescence and longer wavelength near-infrared signals. The disclosure also relates to near-infrared bioluminescence systems that include said modified click beetle luciferase polypeptides and novel luciferin derivatives, as well as methods of using said modified click beetle luciferase polypeptides and bioluminescence systems.

The invention discloses a display panel and a display device. The display panel comprises a first electrode layer, N light-emitting structure layers arranged on the first electrode layer in a stackedmode and a second electrode layer located on the light-emitting structure layers, and N is a positive integer; the light-emitting structure layers are provided with a plurality of light-emitting unitscorresponding to the sub-pixels, each light-emitting unit comprises a plurality of functional film layers arranged in a stacked mode, and one functional film layer is a light-emitting layer; a firstoptical path is arranged between the first electrode layer and the light-emitting layer in the ith light-emitting structure layer, the first optical path corresponds to the same color sub-pixel value,the first optical path and the wavelength of light emitted by the light-emitting unit are in a linear relation, and i is 1, 2, 3... N. According to the embodiment of the invention, the light-emittingbrightness of the same color can be enhanced, and the light-emitting effect can be enhanced.

The invention is suitable for the technical field of detection, and provides a dipterex electrogenerated chemiluminescence molecular imprinting sensor as well as a preparation method and application thereof. The preparation method of the dipterex electrogenerated chemiluminescence molecularly imprinted sensor comprises the following steps: preparing the molecularly imprinted sensor: preparing a polymer film base solution from an o-phenylenediamine solution and a dipterex solution; putting the cleaned gold electrode into a polymer membrane base solution, and carrying out electropolymerization through cyclic voltammetry to obtain an electropolymer; eluting the electropolymer by using water, eluting for 3-10 minutes by using a mixed solution of NaOH and absolute ethyl alcohol as an eluent, and eluting the electrode by using water to obtain the molecularly imprinted sensor; preparing a chemiluminescent base solution: uniformly mixing a luminol solution, a PBS (Phosphate Buffer Solution) and a 3% hydrogen peroxide solution to prepare the chemiluminescent base solution. According to the present invention, the dipterex can enhance the luminescence effect on the luminol-H2O2 luminescence system, and the molecular imprinting technology and the electrogenerated chemiluminescence are combined so as to obtain the high-sensitivity and high-selectivity dipterex detection sensor;.