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103results about How to "Guaranteed glow effect" patented technology

Light source assembly, display device and preparing method of light source assembly

The invention provides a light source assembly, a display device and a preparing method of a light source assembly. The light source assembly is characterized in that a carrier comprises two superposed film layers and a conductive layer between the two superposed film layers; the conductive layer comprises a plurality of pad patterns; the pad patterns are electrically connected through leads; onefilm layer is provided with a plurality of windows for exposing the pad patterns; LED chips are fixed on different pad patterns correspondingly through tin soldering; and the same fluorescent layer fills the clearances among the LED chips and covers all LED chips. Compared with a traditional backlight source, the light source assembly and the preparing method thereof according to the invention have advantages of ensuring high light emitting effect, realizing high flexibility and foldability of the light source assembly for matching preparation of a narrow-frame and even no-frame display device. Compared with an existing popular OLED screen, the display device according to the invention can realize a substitution plan with advantages of low cost, high yield and high popularization value forrealizing high screen-to-body ratio.
Owner:SHENZHEN LT OPTOELECTRONICS CO LTD

Display panel and display device

The invention relates to the technical field of display, and discloses a display panel and a display device. The display panel comprises a first area formed by a front surface pixel array and a secondarea formed by a back surface pixel array, so that double-sided display can be realized; the pixel of the first area comprises a first light-shielding layer, a first thin-film transistor and a top-emitting OLED unit; the first light-shielding layer is arranged, and material of a first anode and a first cathode can be selected, so that emitting and light leakage of the light from the top-emittingOLED unit on the back surface of the display panel can be prevented; the pixel of the second area comprises a second thin-film transistor, a bottom-emitting OLED unit and a second light-shielding layer; the second light-shielding layer is made of a material with a light shielding effect, such as a black film MMCBX or a black matrix BM, and is made on a metal electrode, and the effect of the composite functional electrode thin film can be achieved, so that the light-emitting effect of the back-side display pixels is guaranteed, and light leakage is prevented. The display panel can be a flexiblefolding panel, so that the light and thin double-sided display effect is easy to realize.
Owner:BOE TECH GRP CO LTD

LED coating for encapsulating quantum dots by multiple layers and preparation method thereof

PendingCN108511582ADense high barrier particlesControl glow qualityLuminescent paintsSemiconductor devicesQuantum dotHigh surface
The invention relates to an LED coating for encapsulating quantum dots by multiple layers. The LED coating comprises a traditional encapsulation material layer and a plurality of encapsulation particles of quantum dots and scattered particles, which are scattered in the traditional encapsulation material layer, wherein from inside to outside, the encapsulation particle of the quantum dot and the scattered particle comprises a quantum dot, a compatible polymer layer and a water and oxygen barrier film layer in sequence, and a plurality of inorganic nano scattered particles are scattered in thecompatible polymer layer. The compatible polymer and the quantum dot are highly compatible, so that the high surface energy property of the quantum dot is prevented from damaging colloid crosslinking,and the quantum dot is more stable. According to the LED coating, the quantum dot is wrapped in the compatible polymer and then is crushed into particles, the surface of the particle is encapsulatedby the water and oxygen barrier film layer, and finally, the obtained particles are scattered in another colloid, so as to prepare the quantum dot coating, therefore, the quantum dots are less likelyto gather so as to maintain the luminescence performance; and the multilayer encapsulation structure improves the water and oxygen blocking performance of the quantum dot coating.
Owner:SOUTH CHINA UNIV OF TECH

Camera module, mobile terminal and control method

The invention discloses a camera module, a mobile terminal and a control method, and the camera module comprises a housing which is provided with at least one light transmission area; The lens is embedded in the shell; And the at least one light-emitting assembly is embedded in the shell, one light-emitting assembly corresponds to one light-transmitting area, and light emitted by the light-emitting assembly can penetrate out of the light-transmitting area. According to the invention, the integrity of the shell of the camera module is ensured while the light emitting effect of the camera moduleis ensured, and the space utilization of the camera module is facilitated.
Owner:VIVO MOBILE COMM CO LTD

Low-temperature plasma preparation method of nitride fluorescent powder

The invention relates to a low-temperature plasma preparation method of nitride fluorescent powder. The chemical general formula of the nitride fluorescent powder is M(1-x)AlSiN3:xEu<2+>, wherein M is Ca, Sr or Ba and x is greater than or equal to 0.005 and less than or equal to 0.20. A nitride fluorescent powder material is synthesized at an ordinary pressure by carbon thermal reduction and residual carbon in the material is removed by adopting a low-temperature plasma decarbonizing technique. The method provided by the invention has the advantages and positive effects that the low-temperature plasma preparation method of the nitride fluorescent powder is relatively simple in preparation condition, raw materials are easily available, the decarbonizing process is efficient and energy-saving, and the nitride fluorescent powder material is prevented from being damaged, so that the production cost of the nitride fluorescent powder is extremely lowered and the light emitting performance of the material is ensured, thereby facilitating popularization and application of the nitride fluorescent powder in the field of illumination and display.
Owner:深圳惠农智光科技有限公司

Organic light emitting device and flexible display device

The invention provides an organic light-emitting device and a flexible display device, which relate to the technical field of display and are used for solving the technical problem that a flexible display device cannot be normally used due to the separation of a cathode electrode layer and a thin film encapsulation layer. Wherein the organic light emitting device comprises a light emitting unit and a thin film encapsulation layer arranged in a stack, the light emitting unit includes a first electrode and a pixel layer, the organic light emitting device further includes a pixel defining layer that isolates the pixel layer, the pixel defining layer and the pixel layer are provided with the first electrode facing the thin film encapsulation layer, The first electrode faces the surface of thethin film encapsulation layer and a region corresponding to the pixel defining layer is provided with a plurality of projections, and at least a portion of the thin film encapsulation layer faces thelower surface of the first electrode and is provided with a recess fitted with the projections. The first electrode faces the surface of the thin film encapsulation layer and the region correspondingto the pixel defining layer.
Owner:GUANGZHOU GOVISIONOX TECH CO LTD

Spherical solar power lamp

The invention provides a spherical solar power lamp, comprising a spherical housing, a left shaft, a right shaft, a light source part, a photovoltaic battery plate and a storage battery, wherein the spherical housing comprises an upper hemisphere, a connecting part and a lower hemisphere, the upper hemisphere and the lower hemisphere are respectively connected with two ends of the connecting part; the left shaft is arranged on one side of the connecting part; the right shaft is arranged on the opposite side of the connecting part; the spherical housing is positioned on a U-shaped bracket, the two ends of the U-shaped bracket are respectively connected with the right shaft and the left shaft, the bottom end of the U-shaped bracket is connected with a support bar, the end part of the support bar is provided with branches on which solar panels are fixedly arranged; the light source part is arranged in the lower hemisphere; the photovoltaic battery plate is arranged in the upper hemisphere and is made of brass alloy; and the storage battery is arranged in the connecting part and is respectively electrically connected with the light source part and the photovoltaic battery plate. According to the solar power lamp, the vertical positions of the photovoltaic battery plate and the light source can be conveniently and quickly changed, thereby compromising luminous efficiency and photoelectric conversion efficiency, and prolonging the service life.
Owner:潘云清

Dispensing method for LED display screen and dispensing device for LED display screen

The invention discloses a dispensing method for an LED display screen and a dispensing device for the LED display screen. The LED display screen comprises a circuit board and multiple LED lamps arranged on the circuit board. The dispensing method for the LED display screen includes the steps that the circuit board including the multiple LED lamps is arranged on a heating table of the dispensing device; the single-time glue spraying amount of a dispensing nozzle of the dispensing device is set according to the distance between the adjacent LED lamps; an adhesive in an adhesive cylinder of the dispensing device is heated to the target temperature, and the dispensing nozzle of the dispensing device is used for extruding out the adhesive so that the part between every two adjacent LED lamps can be filled with the adhesive; and the circuit board obtained after dispensing is baked so that the adhesive formed between the LED lamps in a filling manner can be formed. By means of the dispensingmethod for the LED display screen and the dispensing device for the LED display screen, the single-time glue spraying amount of the dispensing nozzle is set according to the distance between the adjacent LED lamps, the temperature of the adhesive is controlled to be the target temperature, the requirement for conducting dispensing between small-distance light sources can be met, the phenomenon ofglue pulling or glue hanging is avoided, and the performance of the LED display screen is improved.
Owner:SHENZHEN DICOLOR OPTOELECTRONICS

Pixel arrangement structure, display panel and display device

The application discloses a pixel arrangement structure, a display panel and a display device. The pixel arrangement structure comprises a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, wherein four two adjacent first sub-pixels are taken as a first combination to share an evaporation mask plate opening, four two adjacent second sub-pixels aretaken as a second combination to share the evaporation mask plate opening, and the first combination and the second combination are arranged in the row direction in sequence; at least two third sub-pixels are taken as a third combination to share the evaporation mask plate opening, and the third combination is arranged on adjacent rows of each of the first combination and the second combination in a staggered manner relative to the first combination and / or the second combination, and thus the opening areas of the four first sub-pixels, the four second sub-pixels and the at least two third sub-pixels can be respectively combined when the evaporation mask plate is used for manufacturing the pixel arrangement structure, so that the evaporation mask plate opening areas are reduced, and the opening rate of the pixels is effectively improved.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

LED (Light-Emitting Diode) lamp panel and manufacturing method thereof

InactiveCN102434857AAvoid strip-by-strip placementTake advantage ofPoint-like light sourceLight fasteningsEngineeringLED lamp
The invention provides an LED (Light-Emitting Diode) lamp panel and a manufacturing method thereof. The method comprises the following steps of: forming an electric conduction trace on a printed circuit board to partition the printed circuit board into a plurality of first LED lamp installation strips arranged side by side and a plurality of second LED lamp installation strips arranged together with the first LED lamp installation strips at intervals; arranging LED lamps on the first LED lamp installation strips and the second LED lamp installation strips; and cutting the printed circuit board into two independent lamp panels.
Owner:SUZHOU DONGSHAN PRECISION MANUFACTURING CO LTD

Luminous keyboard

The invention relates to a luminous keyboard. The luminous keyboard comprises a plurality of keys, a membrane switch circuit and a light emitting module used for generating light beams, wherein the membrane switch circuit is triggered by the keys to generate signals; the membrane switch circuit comprises a plurality of light guide areas; and each light guide area is filled with a light guide layer in a gapless way. Therefore, the light guide layer has a firm structure and is not easy to wear. By using the luminous keyboard, the light emitting effect of the luminous keyboard can be ensured; and moreover, the yield of the light guide layer of the luminous keyboard is high.
Owner:PRIMAX ELECTRONICS LTD

Radiation-proof table lamp

The invention discloses a radiation-proof table lamp. The radiation-proof table lamp comprises a lamp holder, a lamp pole, a lampshade, a lamp cap, an electronic ballast and a lamp tube, wherein the lamp cap, the electronic ballast and the lamp tube are assembled in the lampshade, the lamp cap is electrically connected to the input end of the electronic ballast through a wire, and the lamp tube is electrically connected to the output end of the electronic ballast; the lampshade is divided into a front lampshade cover and a rear lampshade cover, the front lampshade cover is made of transparent radiation-proof material, a heat absorption layer absorbing heat and a shielding layer shielding electromagnetic radiation are sequentially arranged on the inner wall of the rear lampshade cover, the heat absorption layer dissipates the heat out of the lampshade through heat conduction columns, and the heat absorption layer and the shielding layer are electrically connected to a wire between the lamp cap and the electronic ballast through a radiation coupler. Compared with existing radiation-proof table lamps, the radiation-proof table lamp has the advantages that the radiation-proof effect is better and the service life is longer.
Owner:王可欣

Efficient self-cleaning energy-storage illuminating light reflection film

InactiveCN106324736AGuaranteed light absorption efficiencyGuaranteed glow effectOptical elementsLight reflectionClean energy
The invention discloses an efficient self-cleaning energy-storage illuminating light reflection film. The efficient self-cleaning energy-storage illuminating light reflection film sequentially comprises a self-cleaning cladding layer, a light reflection film layer, an air layer, an energy-storage illuminating light reflection film layer and an adhesive layer from top to bottom. According to the efficient self-cleaning energy-storage illuminating light reflection film, cleaning can be kept for a long time through the self-cleaning effect of the self-cleaning cladding layer outdoors; under the illumination condition, and the warning and guiding aims are achieved through the efficient light reflection effect of the light reflection layer; under the dark condition, the warning and guiding aims can be also achieved through the illuminating effect of the energy-storage illuminating layer. The light reflection film has the advantages of being good in self cleaning, efficient in light refection, high in illuminating brightness, long in illuminating time and service life, wide in application range and the like.
Owner:ANHUI ZHONGYI NEW MATERIAL TECH CO LTD

Quantum dot film and preparation method thereof

The invention belongs to the field of optical films and packaging, and particularly discloses a quantum dot film and a preparation method thereof. The preparation method comprises the following steps:S1, coating quantum dots to obtain quantum dot microspheres; S2, mixing the quantum dot microspheres in an organic polymer solution, and carrying out curing and forming to obtain an initial quantum dot film; and S3, depositing an oxide layer on the surface of the initial quantum dot film to obtain a quantum dot film, thus completing the preparation of the quantum dot film. According to the preparation method, the quantum dots are sequentially coated with an organic or inorganic substance, an organic polymer and an oxide, the prepared quantum dot film is good in uniformity, the stability of the quantum dots is effectively improved, and the service life of the quantum dots is prolonged.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for manufacturing quantum dot display device and corresponding quantum dot display device

The invention relates to the technical field of quantum dot displaying and discloses a method for manufacturing a quantum dot display device. The method comprises: providing an array substrate and a butting substrate facing each other; printing alignment solution containing quantum dot material to one side of the array substrate which faces the butting substrate; removing a solvent in the alignment solution printed to the side of the array substrate which faces the butting substrate; after the solvent is removed, heating the array substrate; providing a backlight module on the side of the array substrate which is opposite to the butting substrate. The invention also discloses a corresponding quantum dot display device. By the aid of such manufacturing method, the display quality of the manufactured quantum dot display device is greatly improved, and related manufacture cost and process difficulty are decreased.
Owner:BOE TECH GRP CO LTD +1

Light-emitting porous water-permeable concrete pavement structure

The invention relates to a light-emitting porous pervious concrete pavement structure. The structure comprises a porous pervious cement concrete base layer and light-emitting surface layers arranged on the two sides of the upper surface of the porous pervious cement concrete base layer, and the light-emitting surface layers are distributed on the two sides of the upper surface of the porous pervious cement concrete base layer in a grid shape. Compared with the prior art, artificial luminous stone with no radioactivity is used, the structure is composed of an alkaline earth long-afterglow material activated by rare earth elements, and therefore the structure can automatically emit light and is long in light-emitting time. The adhesiveness of the light-emitting layers and the pervious cementconcrete structure is guaranteed through transparent epoxy resin glue, the light-emitting effect is not influenced, and the bonding performance is good; the light-emitting structure layer is of a grid structure, and the light-emitting performance and the mechanical property are ensured while the light-emitting performance is ensured.
Owner:TONGJI UNIV

OLED organic luminescent material and preparation method thereof, OLED device and preparation method thereof

The invention belongs to the technical field of organic luminescent materials, in particular to an OLED organic luminescent material, wherein the surface of the organic luminescent material powder iscoated with an organic cladding layer, and the surface of the organic cladding layer is coated with an inorganic cladding layer. The invention also provides a preparation method of the OLED organic luminescent material, which comprises the steps of: firstly forming an organic cladding layer on the surface of the organic luminescent material powder by MLD, and then cladding an inorganic cladding layer on the surface of the organic cladding layer by ALD. The invention also provides a preparation method of an OLED device, wherein the OLED organic luminescent material is evaporated and deposited as a luminescent layer. The invention also provides an OLED device prepared by adopting the preparation method. An inorganic cladding layer formed on the surface of organic luminescent material powdercan prevent the organic luminescent material powder from reacting with water or oxygen, thereby prolonging the service life; the inorganic cladding layer and the organic cladding layer will rupture inthe evaporation process, and the organic luminescent material is mixed with the inorganic clad layer and evaporated into the luminescent layer to form doping, and the luminescent efficiency is improved.
Owner:柔电(武汉)科技有限公司

Inorganic ceramic energy storage self-luminous material, preparation method and application thereof, self-luminous ceramic particles and self-luminous ceramic tile

The invention provides an inorganic ceramic energy storage self-luminous material, a preparation method and application thereof, self-luminous ceramic particles and a self-luminous ceramic tile, and relates to the technical field of materials. The inorganic ceramic energy-storage self-luminous material comprises the following raw materials: low-melting-point glass powder and a luminous material, and the melting point of the low-melting-point glass powder is 400-800 DEG C. According to the inorganic ceramic energy-storage self-luminous material, the low-melting-point glass powder with the melting point of 400-800 DEG C is adopted as the raw material, damage to the luminous material can be effectively avoided, it is guaranteed that the inorganic ceramic energy-storage self-luminous materialhas high brightness, and therefore the requirement of customers for the luminous brightness is met.
Owner:周立军 +3

Preparation method for photoluminescent hydrogel composite material

The invention discloses a preparation method for a photoluminescent hydrogel composite material. The preparation method comprises: preparing an emulsion by foam plastic (waste foam plastic recommended); carrying out surface coating on a long-afterglow luminescent material by the emulsion to form micro-emulsion balls; and then adding a hydrophilic macro-molecular monomer to initiate grafted polymerization reaction on the surfaces of the micro-emulsion balls of the monomer under the condition of a crosslinking agent and an initiator to prepare the hydrogel composite material. The photoluminescent hydrogel prepared by the method disclosed by the invention not only has water adsorption and water-retaining property of the hydrogel, but also has a photoluminescent function, is of certain appreciation, and plays roles of indicating at night and marking.
Owner:NANJING NORMAL UNIVERSITY

Preheating method for xenon lamp light source of endoscope, xenon lamp light source and endoscope

The invention provides a preheating method of an endoscope xenon lamp light source, a xenon lamp light source and an endoscope, the method can determine the target brightness of the endoscope xenon lamp light source and collect the real-time brightness of the endoscope xenon lamp light source in the preheating process, and the endoscope xenon lamp light source can be preheated when the real-time brightness of the endoscope xenon lamp light source is larger than or equal to the target brightness. When the endoscope xenon lamp light source is preheated, it can be prompted that the preheating progress of the endoscope xenon lamp light source is completed, at the moment, in the process of preheating the endoscope xenon lamp light source, the completion of the preheating progress can be fed back timely and accurately, and therefore it can be guaranteed that the endoscope xenon lamp light source is fully preheated, and meanwhile waste of working time caused by blind waiting after full preheating is avoided; the light emitting effect of the endoscope xenon lamp light source is guaranteed, and the preheating efficiency of the endoscope xenon lamp light source is also improved.
Owner:APEIRON SURGICAL (BEIJING) CO LTD

Automobile paint surface check station with LED matrix arrangement type variable-combination light source

InactiveCN108662561AUniform light exposureThe light is stableLighting support devicesMaterial analysis by optical meansPower flowCurrent voltage
The invention discloses an automobile paint surface check station with a LED matrix arrangement type variable-combination light source. The automobile paint surface check station is characterized in that the check station enables an automobile inside the check station to be an irradiation scope of 180 degrees through irradiation combination of spotlights mounted on a top plate, spot lamp tubes installed on a connecting plate, lamp tubes arranged inside vertical sides and oblique sides, and two rows of panel lights between two vertical sides; and illumination light is uniform and stable. The check station employs improved LED luminaires, so that the current-voltage stability of a driving power source is improved, the luminescence stability and effect of LED lamps are ensured, and the powerconsumption cost of an enterprise is effectively reduced; and different light color combinations and specific composition angles of a basic frame structure are utilized, so that the inspection and polishing repair processing efficiency of the exterior paint surface of the automobile are comprehensively improved and ensured, and the polishing repair quality and the perfect mirror effect achievementrate of final products are ensured.
Owner:深圳市欧珀锐纳米科技有限公司

Automotive interior trim atmosphere lamp assembly and manufacturing method thereof

The invention discloses an automotive interior trim atmosphere lamp assembly and a manufacturing method thereof, and relates to the technical field of automotive interior trims. The atmosphere lamp assembly comprises: a light-transmitting surface layer, wherein one side of the light-transmitting surface layer is carved off to form a light-transmitting pattern; a foaming layer arranged on one side,provided with the light-transmitting pattern, of the light-transmitting surface layer; a light scattering framework flatly bonded with one side, far away from the light-transmitting surface layer, ofthe foaming layer through a hot melt adhesive layer and used for uniformly scattering received light rays; a lamp shell provided with a containing cavity, wherein the lamp shell is buckled to the side, away from the foaming layer, of the light scattering framework, and a light reflecting layer used for reflecting light is arranged on the inner wall of the containing cavity; and a lamp body arranged in the containing cavity. According to the automotive interior trim atmosphere lamp assembly and the manufacturing method thereof, the texture effect of soft touch of the automotive interior trim atmosphere lamp assembly can be achieved, and when the atmosphere lamp is lightened, the light-emitting effect of the atmosphere lamp can be guaranteed, and customer requirements are met; and the overall brightness of the atmosphere lamp and the light transmittance uniformity of the atmosphere lamp assembly can be further improved.
Owner:DONGFENG MOTOR CORP HUBEI

Tactile feedback device and flexible display

The invention discloses a tactile feedback device and a flexible display, wherein, the tactile feedback device comprises a touch pad and first particles placed in a space between the touch pad and theflexible panel, wherein the first particles do not block the luminescence of the luminescent area in the flexible panel. Alternatively, the tactile feedback device includes a touch pad, and second particles placed in a non-luminescent region in the flexible panel. The flexible display includes the tactile feedback device described above. When the user presses the touch pad, because of the settingof the particles, the user can feel the uneven tactile feeling very directly and in time, thereby improving the user experience; on the other hand, the arrangement of the tactile feedback device doesnot affect the luminescence of the luminescent area in the flexible panel, so that the flexible display can provide high-quality tactile feedback through the tactile feedback device without affectingthe normal use of the flexible display.
Owner:YUNGU GUAN TECH CO LTD

Transparent solar LED panel

The invention discloses a transparent solar LED panel. The transparent solar LED panel comprises a glass substrate, an ITO conductive thin-film layer, LED chips and solar cell panels. The ITO conductive thin-film layer is formed on the front face of the glass substrate by the method of magnetron sputtering, the ITO conductive thin-film layer forms a circuit by etching, the circuit is provided with a solid crystal region, the LED chips are installed on the solid crystal region upside down, the LED chips are formed in series connection among one another, the back face of the glass substrate is provided with welding spots, the welding spots and the ITO conductive thin-file layer circuit are connected, the solar cell panels and the welding spots are connected in a welding mode, and the solar cell panels are laminated and bonded with the back face of the glass substrate through a laminator. Through the combination of the solar cell panels and the glass substrate, the LED chips are installed on the glass substrate, and on the one hand, the original luminous effect is maintained; on the other hand, the storage of electric energy and a self-powered process can be realized by increasing the storage batteries. The encapsulation requirements are met by controlling the parameters in the magnetron sputtering and controlling the process during encapsulation.
Owner:GUANGZHOU QIHONG ELECTRONICS TECH

Display panel, preparation method thereof and display device

The invention relates to a display panel, a preparation method thereof and a display device, and solves the problem that pixel units in a present display panel is uneven in thickness and low in film homogeneity. The display panel comprises a pixel limiting layer and a conducting layer laminated with the pixel limiting layer, and the first surface, adjacent to the pixel limiting layer, of the conducting layer is provided with infiltration patterns. Thus, the spreading speed of ink drops is improved, the concentration difference of the ink drops is reduced, and finally, the film homogeneity of the pixel unit is improved, and light emitting performance of the display device is ensured.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Display panel and preparation method thereof

The invention discloses a display panel and a preparation method thereof. The display panel comprises a substrate, an anode layer, a light-emitting heat dissipation structure, a cathode layer and a cover plate; the light-emitting heat dissipation structure comprises a light-emitting layer and a heat dissipation layer; and the heat dissipation layer is located between the light-emitting layer and the cathode layer or the anode layer. The heat dissipation layer can reasonably and effectively dissipate heat generated in the light-emitting process, the light-emitting layer is protected, and the light-emitting effect of the display panel is improved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Preparation method for rare earth tricolored red phosphor used for lamp

The invention discloses a preparation method for rare earth tricolored red phosphor used for a lamp. Main raw materials comprise one or more of a yttrium europium oxide co-precipitate, yttrium oxide europium oxide, 4.6-7.5% by mass of europium. The preparation method comprise the steps of weighing the main raw materials; adding auxiliary agents; mixing the above materials thoroughly to obtain a mixture; sintering the mixture; cooling to a room temperature, screening to obtain a sintered product; adding deionized water to the sintered product for slurrying; injecting the slurry into a ball-milling dispersion machine and dispersing the slurry by the ball milling dispersion machine to obtain a powder slurry; filtering the powder slurry by a water sieve, injecting the powder slurry in a cleaning tank, cleaning with warm water; draining liquid supernatant after sedimentation; screening, removing water; finally loading the dewatered powder into a drying machine for drying, cooling to the room temperature, and screening to obtain the red phosphor. The prepared red phosphor has excellent performance, good dispersibility and good coating performance, effectively increases utilization rate of the phosphor in the lamp, and saves phosphor consumption than a conventional red phosphor while guaranteeing a luminescence effect.
Owner:FUJIAN CHANGJIANG GOLDEN DRAGON RARE EARTH CO LTD
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