39results about How to "Luminous properties are stable" patented technology

A display apparatus includes a substrate, a plurality of pixels formed on the substrate, and a barrier plate for separating adjoining pixels from each other. Each pixel includes a lower layer portion having wiring formed on the substrate, an upper layer portion having an organic electro-luminescent element, and a middle layer portion for insulating the lower layer portion and the upper layer portion from each other electrically. The organic electro-luminescent element is connected with the windings through a contact hole formed in the middle layer portion. The barrier plate is disposed in the upper layer portion so as to overlap with a region including a contact hole not suitable for forming the organic electro-luminescent element.

A strontium silicate-based phosphor, a fabrication method thereof, and an LED using the strontium silicate-based phosphor are provided. The phosphor is applied to a long wavelength ultraviolet LED, an active luminous LCD, etc., to enable an improvement in the color purity and to enhance the luminous efficiency. The strontium silicate-based phosphor is expressed by a chemical formula: Sr3-xSiO5Eu2+x wherein x is 0<x≦1. The LED using the phosphor has a wide wavelength spectrum, shows a superior color purity characteristic, and can have a very high luminous efficiency as applied in the backlight source of an LED panel or an active luminous LCD.

The purpose of the invention is to provide an organic electroluminescent element having stable luminescent characteristics with a low luminescence starting voltage and without non-luminescing black spots in the luminescing surface. The invention relates to a method of manufacturing an organic electroluminescent element and an organic electroluminescent element produced by said method, said method of manufacturing an organic electroluminescent element comprising a process for forming a positive electrode substrate by dry etching a transparent electrode in a vacuum, a process for dry washing said positive electrode substrate in a continuous vacuum without exposure to air, a process for forming an organic layer incorporating an organic luminescing layer on said positive electrode substrate, and a process for forming a negative electrode on said organic layer.

A thin-profile organic EL device with a high degree of reliability is provided. The anode, the organic layer and the light transmissible-type cathode are laminated on the substrate and the inorganic water-barrier layer are laminated thereon, and then a UV rays-curable type water-capturing agent comprising a UV rays-curing agent and a water-absorbing agent is cured to bond to the sealing substrate instead of an adhesive layer. The UV rays-curing agent comprises an acrylic monomer, initiator and accelerator. The UV rays-curable type sealing agent is placed to the outer peripheral portion of the UV rays-curable type water-capturing agent to be cured. The emission of the organic layer is transmitted upward via the cathode, UV rays-curable type water-capturing agent and the sealing substrate. The UV rays-curable type water-capturing agent can be formed in a desired thickness and pattern by applying it and irradiating with UV-rays, thereby making it possible to produce a low-profile organic EL device in large quantities with a high degree of reliability and without damaging the organic layer which is not resistant to water.

An organic EL element includes a functional layer disposed between an anode and a cathode on a substrate and including laminated different organic thin films including a light-emitting layer, and a partition wall which defines the functional layer. Each of the organic thin films is formed by applying a liquid containing a functional layer-forming material on a film-forming region defined by the partition wall and then drying the liquid. The partition wall has at least one step portion provided in the side wall thereof in the thickness direction, and liquid repellency is imparted to the uppermost surface of the partition wall and the upper surface of the step portion. The surface of the side wall excluding the step portion has lyophilicity in comparison with the upper surface of the step portion.

The present invention provides an organic electroluminescent device that can keep a stable luminescent characteristic for a long period. An organic electroluminescent device includes at least an anode 2, a charge generating layer 3, a luminescent layer 4 and a cathode 5 in this order. The charge generating layer 3 has an area 3a containing an electron transporting material at the anode side, and an area 3b containing a hole transporting material and a material capable of forming a charge transfer complex with the hole transporting material by an oxidation-reduction reaction at the cathode side, the hole transporting material and the material being laminated or mixed. The hole transporting material is in a radical cation state.

An organic electroluminescent panel, an organic electroluminescent display, an organic electroluminescent lighting device, each include an organic electroluminescent element that maintains stable light emission characteristics for a long period of time. The organic electroluminescent panel includes an element substrate; a sealing substrate facing the element substrate; and an organic electroluminescent element disposed on a sealing substrate side of the element substrate, wherein the organic electroluminescent panel further includes a first sealing member and a second sealing member, the first sealing member sealing a gap between the element substrate and the sealing substrate, the second sealing member covering the organic electroluminescent element, the first sealing member and the second sealing member being arranged with a space therebetween, the space is in a vacuum or reduced pressure state.

The invention belongs to the technical field of nanomaterial and particularly relates to a covalent light emitting organic semiconductor polymer nanofiber with a triazine-like structure and a preparation method of the covalent light emitting organic semiconductor polymer nanofiber. Different organic construction units are connected by carbon-carbon bonds. The covalent light emitting organic semiconductor polymer nanofiber with the triazine-like structure is prepared by synthesis of simple solvothermal reaction and dehydration-condensation reaction of aldehyde group and methylene catalyzed by acatalyst adopting Lewis base. The photophysical properties of a derivate and application of the covalent light emitting organic semiconductor polymer nanofiber with the triazine-like structure in water decomposition by photocatalysis are researched by utilizing an ultraviolet absorption spectrum and a fluorescence spectrum. The compound prepared with the preparation method disclosed by the invention is a fluorescent organic semiconductor material with excellent overall properties and can efficiently and stably transmit electrons in photocatalysis water decomposition reaction.

In a light emitting device having a light emitting element, mounted on a substrate, at least one portion of which is coated with a mold component, the mold component is provided with resin particles and or inorganic material particles, phosphor particles and a sealing resin, and phosphor particles have a specific gravity different from that of resin particles and / or the inorganic material particles, and are made from a grain-shaped phosphor which, when irradiating with excited light, emits fluorescent light having a wavelength longer than that of the excited light, with resin particles and / or the inorganic material particles and the phosphor particles being dispersed in sealing resin; thus, the present invention relates to such a light emitting device and a method for manufacturing the same.

An organic luminescence device is constituted by an organic luminescence lamination structure comprising a pair of an anode and a cathode, and at least one organic compound layer disposed between the anode and the cathode, a hermetic sealing housing enclosing therein the organic luminescence lamination structure and blocking external air, and a drying agent disposed within the hermetic sealing housing. The drying agent comprises a compound represented by the following formula (1):wherein R denotes a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted styryl group, a substituted or unsubstituted acyl group, or a substituted or unsubstituted heterocyclic group. The drying agent comprises the compound of the formula (1) in a polymerized form.

The present invention combines 4-(N, N-dimethylamino)-1, 8-naphthalene imide and fluorene in the same compound, and prepares fluorene-containing 4-(N, N-dimethylamino)-1, 8-naphthalene imide derivative through the synthesis path of Ulman ammonation and amidation. The compound has its chemical structure expressed via element analysis, infrared spectrum and nuclear magnetic resonance, electrochemical property expressed in cyclic voltametry and photophysical property researched in ultraviolet absorption spectrum and fluorescent spectrum. Its application in organic electroluminescence is researched, and experiments shows that the compound has excellent comprehensive performance as electronic transmitting material and yellow and green electroluminescent material.

The present invention provides an organic electroluminescence device that can maintain a stable light emitting characteristic for a long time, an organic electroluminescence panel provided with the organic electroluminescence element, an organic electroluminescence display, organic electroluminescence illumination and a method of manufacturing them. The organic electroluminescence panel is provided with a device substrate, a sealing substrate set opposite to the device substrate and an organic electroluminescence element formed on the sealing substrate side of the device substrate. The organic electroluminescence panel is comprised of a first sealing member to seal the device substrate and the sealing substrate and a second sealing member to coat the organic electroluminescence element at a position separated from the first sealing member, wherein a space defined between the first and second sealing members is reduced in pressure or is in a vacuum state.

An organic luminescence device is constituted by an organic luminescence lamination structure comprising a pair of an anode and a cathode, and at least one organic compound layer disposed between the anode and the cathode, a hermetic sealing housing enclosing therein the organic luminescence lamination structure and blocking external air, and a drying agent disposed within the hermetic sealing housing. The drying agent comprises a compound represented by the following formula (1):<paragraph lvl="0"><in-line-formula>R-NCO (1),< / in-line-formula>wherein R denotes a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted styryl group, a substituted or unsubstituted acyl group, or a substituted or unsubstituted heterocyclic group. The drying agent comprises the compound of the formula (1) in a polymerized form.

Disclosed is an adjustment component that: includes a complex fluoride fluorophore represented by A2(M1-xMnx)F6 (in the formula: M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and / or K; and x is from 0.001 to 0.3); and adjusts the chromaticity and / or color rendering index of illumination light by absorbing light having a wavelength of from 420 nm to 490 nm inclusive, and emitting light including a red wavelength component.

A light source device for a spectrophotometer includes a light source chamber, a light source retained in the light source chamber and having an electrode therein for generating light, an electrode support part connected to the electrode and extending outside the light source chamber, and a cover disposed around the electrode support part for covering a portion of the electrode support part situated outside the light source chamber. A cooling mechanism is installed for cooling the light source chamber from an outside thereof so that the light source is not directly cooled by means of the cover. The spectrophotometer includes the light source device.

Provided is a beta-SiAlON fluorescent body that is represented by general formula: Si6-zAlzOzN8-z (0 < z < 4.2), that has, as a host crystal, the same crystal structure as that of the beta-SiAlON crystal phase, and that has a bulk density of 0.80-1.60 g / cm3. Also, provided is a light-emitting element having the beta-SiAlON fluorescent body and a semiconductor light-emitting element capable of exciting the beta-SiAlON fluorescent body.

Provided are a film for conversion to green and a film for conversion to red, with which the converted light can retain sufficient intensity over a long period. Also provided is an organic EL device for multicolor light emission that shows stable luminescent properties over a long period. Furthermore provided is a pendant type polymer characterized by having one or more kinds of repeating units represented by general formula (1) and one or more kinds of repeating units represented by general formula (2), (6), or (7), wherein when the molar ratio of (1) to (2), (6), or (7) is expressed by m:n,then n / (m+n) is from 1 / 100 to 100 / 100.

A long-life hot cathode fluorescent lamp can include a pair of parallel lead wires that can be arranged at each end of a tube. A coiled filament can be connected at its opposite end portions to the lead wires. The coiled filament can have two long pitched regions in which a coil pitch is longer than regions outside of the long pitched regions. Emitter can be located in a region defined between the two long pitched regions. Shape characteristics and intensive current flow obtained by the presence of the long pitched regions can form the origins of discharge near the boundaries between long and short pitched regions. Accordingly, stable discharge can be achieved with the origins of discharge located at ends of the emitter. As a result, the hot cathode fluorescent lamp is allowed to have a long life and stable light emission characteristics.

The invention provides a device and method for measuring a luminescent spectrum change rule with temperature of a quantum dot. The device comprises a blue-ray or ultraviolet LED lighting source, a hollow cylinder arranged on the blue-ray or ultraviolet LED lighting source, a transparent sheet arranged in the middle of the hollow cylinder and plated with a quantum dot film, a resistance wire wound on the hollow cylinder, a universal meter temperature probe internally inserted between the resistance wire and the outer surface of the hollow cylinder, and a photoelectric probe fixed on the top end of the hollow cylinder. After the LED lighting source is lightened, the resistance wire is used for heating the quantum dot film in the hollow cylinder, the photoelectric probe is used for acquiring a signal of the luminescent source formed by irradiating the quantum dot film through the LED lighting source, and the luminescent spectrum change rule with the temperature of the quantum dot can be acquired according to luminescent feature parameters of the acquired luminescent spectrum and the like of the quantum dot under different temperatures.

The invention relates to a photosensitive ferroelectric polymer composite film and a preparation method thereof, and a ferroelectric device or a piezoelectric device using the composite film. The composite film comprises an organic flexible polymer matrix and inorganic-organic hybrid perovskite filler particles, wherein the content of the filler particles relative to the total mass of the composite film is 1%-5% by mass, and the filler particles exist in the matrix in a monodisperse state.

A light source device has a bulb, a discharge medium containing rare gas sealed inside the bulb, an internal electrode disposed inside the bulb, and an external electrode disposed outside the bulb. A holder member holds the external electrode so that the external electrode is opposed to the bulb with a predetermined distance of a space therebetween.

The present disclosure provides a complex having satisfactory dispersibility and stable luminescence characteristics. A complex of the present disclosure includes: a first substance having a property of specifically binding to a target substance; a quantum dot that contains silicon as a main component and that is negatively charged on a surface; and a linker substance that contains a compound represented by general formula (1) below and that covers the surface of the quantum dot, where the first substance has been immobilized on the surface of the quantum dot through the linker substance:X—L—Si—(R1)(R2)(OR3)  (1)where X is a basic functional group; R1, R2, and R3 are each independently an alkyl group; and L is an alkylene group.

The invention discloses an organic white light-emitting device based on a stepped multi-reaction intersystem crossing process and a preparation method thereof. The light-emitting layer is formed of at least two of MCP, DMAC-DPS, 4CzPNPh and PO-T2T materials The composition of exciplexes, the light-emitting layer has a light-emitting layer structure with a stepwise multi-transverse intersystem crossing process. The anti-intersystem crossing rate of excitons is effectively improved, the utilization rate of excitons is greatly improved, and the fluorescence quantum yield of the device is improved at the same time, which improves the problem of low exciton utilization rate of traditional all-fluorescent devices. The advantages of fluorescence, high anti-system crossing rate, and high fluorescence quantum yield effectively improve the luminous efficiency of white light devices.

Provided is a red fluorescent body that is represented by general formula: MSiAlN3 (where M represents at least one element selected from Mg, Ca, Sr, and Ba), a portion of M being substituted with Eu,and that has, as a host crystal, the same crystal structure as that of the CaAlSiN3 crystal phase, wherein the red fluorescent body has a bulk density of 0.70-2.30 g / cm<3>. Also, provided is a light-emitting element having the red fluorescent body and a semiconductor light-emitting element capable of exciting the red fluorescent body.

A metal vapor discharge lamp, comprises: a translucent ceramic envelope, the envelope comprising a center bulb for defining a discharge space and side tubes, the center bulb and the side tubes being integrally molded; a pair of current suppliers extending through hollows of the side tubes respectively, each of the current suppliers comprising an electrode and a lead-in wire, a first end of the electrode being disposed in the discharge space, a second end of the electrode being connected with the lead-in wire; a sealant for hermetically sealing open ends of the side tubes; and a light-emitting metal contained in the discharge space. An inner wall and an external wall of a seamless boundary portion between the center bulb and each of the side tubes have the smallest curvature radius of Ri mm and Ro mm, respectively. The center bulb has an inner diameter of D mm. The lamp has an electric power of P watts. The radius Ri, radius Ro, diameter D and electric power P satisfy,−0.00076P+0.304≦Ri / D≦−0.00076P+0.490,   Formula (1)where P≦350 watts; and1.28Ro≦Ri≦1.39Ro.   Formula (2)

The invention relates to a method for preparing silicon-based metal nanotubes, in particular to a method for growing controllable metal nanotubes including copper, zinc, titanium, cobalt, chromium or magnesium on a silicon substrate. Using semiconductor silicon wafers as raw materials, through electrochemical corrosion and metal deposition, nanotubes of metals including copper, zinc, titanium, cobalt, chromium or magnesium are prepared. This method adopts no mask and no electrodes, and the prepared metal nanotubes are more uniform, with controllable tube diameter, strong luminescence performance and high stability, and have greater development space in the field of microelectronics and optoelectronic devices. .