98results about How to "Uniform light color" patented technology

A white light LED of reflection type by applying fluorescent powder excitation is prepared as arranging reflector on outgoing light path of blue light or ultraviolet ray diode in proper angle, shooting out said outgoing light by light outgoing surface of LED after it is reflected by reflector, coating fluorescent powder on reflector or on light outgoing surface of diode to let fluorescent powder generate white light by exciting blue light or ultraviolet ray form diode on fluorescent powder.

The invention discloses a method for packaging a white LED locally sprayed with fluorescent powder. The method comprises the following steps: after an LED chip is subjected to die bonding and wire bonding on a power bracket, putting the LED bracket into a die, and exposing the chip and an edge area; atomizing the sprayed fluorescent powder by using an atomizing nozzle of an automatic glue dispenser, and connecting fine fluorescent powder glue drops on the surface and side wall of the chip into a film; treating the surface of a heat sink of the bracket by using plasmas, and mainly converging the glue drops at the periphery of the chip; and forming a layer of uniform fluorescent powder glue film, and forming the local coating of the LED fluorescent powder after thermocuring or ultraviolet curing. The photochromic uniformity of the white LED is improved; and because the fluorescent powder forms the uniform coating layer on the surface and the side face of the chip through surface tension, the ratios of fluorescence excitation and chip emitting light in various directions are almost equal, and the photochromism is uniform.

The invention discloses a white light emitting diode with high color rendering property and a white light emitting diode lamp. The white light emitting diode comprises a heat conducting substrate, a light reflecting cup, a light emitting diode chip and a lead wire frame, wherein the light reflecting cup plays a light mixing role, and small protrusions are arranged on the inner wall surface of the light reflecting cup; the light emitting diode chip outputs at least six lights in different colors and is arranged on the heat conducting substrate to carry out electric combination; the lead wire frame is matched with the bottom of a light emitting cup in shape and size, arranged outside the light reflecting cup, and fixed on the upper surface of a base; an electrode of the chip is electrically connected with a lead wire on the lead wire frame, and a transparent optical material is covered on the chip; and polychromatic lights are evenly mixed through the diffuse reflection of a reflecting wall of the light reflecting cup to produce the white light emitting diode with high color rendering property and high efficiency. By applying the white light emitting diode lamp made of the white light emitting diode and a flat light source, the white light emitting diode lamp eliminates the light energy loss of fluorescent powder in the photochromic conversion process, thereby having high electro-optical conversion efficiency, long service life and convenient batched production.

The invention discloses a quantum dot white light LED device. The quantum dot white light LED device comprises a flip chip, a quantum dot layer, a transparent packaging layer, a reflective layer and an electrode layer, wherein a groove is formed in the upper surface of the flip chip; first lines are arranged on the inner surface of the groove; the quantum dot layer is arranged in the groove; the electrode layer is arranged at the bottom of the flip chip; the reflective layer coats the side wall of the flip chip, a non-groove region on the upper surface of the flip chip, and the side wall of the electrode layer; the spaces between electrodes of the electrode layer is filled with the reflective layer; second lines are arranged on the upper surface and the inner wall of the reflective layer; and the exposed region of the quantum dot layer and the upper surface of the reflective layer are coated with the transparent packaging layer. The invention also correspondingly discloses a preparation method for the quantum dot white light LED device. The quantum dot white light LED device is high in airtight property, excellent in heat dissipation, high in reliability, and high in color rendering; and the preparation method is free of a packaging link, simple in preparation process and easy to implement, mature, and high in preparation efficiency.

The invention provides a backlight module and a display device. The display device comprises the backlight module and a display panel. The backlight module comprises a light guide plate, a base, a first LED and a second LED. The base is arranged on one side of the light guide plate, the first LED is arranged on a first setting face of the base, and the second LED is arranged on a second setting face of the base. The distance between the first LED and the bottom face of the base is larger than the distance between the second LED and the bottom face of the base. The invention can improve the problem of color offset and improve the light coupling effect of the LEDs.

A luminous module encapsulation method is suitable for a compression molding mechanism having an upper mold and a lower mold, wherein, the surface of the upper mold is provided with mold cavity. The encapsulation method includes: firstly arranging the fluorescent film on the surface of the upper mold having the mold cavity; and then, forming the gel on the fluorescent membrane; then, placing the colloid on the substrate, and one side of the substrate having the light emitting chip is contacted with the side of colloid; then, the upper mold and the lower mold performing heat pressing to the substrate, the colloid and the fluorescent film, to form a luminous module with at least one light-emitting component; after the compression, divorcing the luminous module from the upper mold and the lower mold. Herein, fluorescent powders are homogeneously distributed on the light outlet surface of the light-emitting components, which can avoid the heating absorption of the fluorescent powder and can improve the process speed.

The present invention provides an OLED device and an OLED display. The OLED device can increase the luminescent intensity of the OLED device by times through connecting two or more than two luminescent units in series; and a semitransparent anode is employed to introduce the microcavity effect to narrow the luminescence spectrum, make the light color purer and further improve the luminescent intensity. The OLED display includes the OLED device, the luminescent intensity is increased by times through connecting two or more than two luminescent units in series; the semitransparent anode is employed to introduce the microcavity effect to narrow the luminescence spectrum, make the light color purer and further improve the luminescent intensity so as to help to motivate a color conversion film to emit red and green light to obtain red, green and blue three-primary color lights with high color saturation and improve the color gamut of the OLED display; and because luminescent layers corresponding to red, green and blue pixels in the OLED display are blue luminescent layers, a precision metal mask version is avoided to use so as to facilitate improving the resolution ratio of the OLED display.

The present invention discloses a pixel defining layer, a preparation method thereof and a display panel. The invention aims to improve the film formation uniformity of an OLED (Organic Light EmittingDiode) light emitting layer, improve the light emitting effect of the OLED light emitting layer, and prolong the service life of a display device. The pixel defining layer provided by one embodimentof the present invention is disposed on a substrate; the pixel defining layer comprises at least four pixel defining sub-layers which are composed of hydrophilic pixel defining layers and hydrophobicpixel defining layers which are alternately stacked on the substrate; the pixel defining sub-layer adjacent to the substrate is a hydrophilic pixel defining layer; and in a direction perpendicular tothe substrate, the pixel defining sub-layer farthest from the substrate is a hydrophobic pixel defining layer.

The invention provides an illumination lamp. The illumination lamp comprises a light splitting lens having an optical shaft, and a light source and a reflector arranged in the extending direction of the optical shaft in sequence, wherein a light mixing component is arranged between the light source and the light splitting lens; the optical shaft penetrates through the light mixing component; and emitting light of the light source is transmitted to the light splitting lens after being mixed by the light mixing component. As the light mixing component is arranged between the light source and the light splitting lens, the emitting light of the light source experiences once light homogenization before being emitted into the light splitting lens so as to obtain more collimated and uniform light distribution; and the illumination lamp has the characteristics of high optical efficiency, high center light intensity, low glare value and light spots with uniform light color. The illumination lamp can generate various light distribution rays with narrow, medium and wide light beams according to demands of illumination places.

The invention relates to an oil paint coating method and a coating system for a middle-sized luxury yacht. The method includes: subjecting a gel coat surface to primer pretreatment; spraying primer on treated materials; subjecting the materials to primer post-treatment after primer spraying; subjecting the materials undergoing the primer post-treatment to topcoating; subjecting the materials undergoing the topcoating to top coat post-treatment; spraying vanish to the materials undergoing top coat post-treatment; subjecting the materials undergoing vanish coating to vanish post-treatment. The coating system comprises a spray coating pretreatment system, a spray coating system and a spray coating post-treatment system. The oil paint coating method and the coating system for the middle-sized luxury yacht have the advantages that oil paint can be coated on the outer surface of glass reinforced plastic yacht housing, the oil paint is high in resistance to high-speed seawater erosion and adhesion, resistant to oceanic climate, smooth in paintcoat, uniform in glossiness and color, clear in color separation and rich in paintcoat, glossiness is larger than 95%, and the requirement on colorful yacht body can be met.

The invention relates to a coating technological method and a coating system of a motorboat. The method comprises the following steps of implementing primer pre-treatment on an SMC (Sheet Moulding Compound) base material; spraying primer onto the treated SMC base material; implementing primer post-treatment on a product which is completely sprayed with the primer; implementing finish pre-treatment on the treated product; spraying finish onto the treated product; implementing finish post-treatment on the product which is completely sprayed with the finish so as to obtain a finished product; the coating system comprises a spray coating pre-treatment system, a spray coating system and a spray coating post-treatment system. By applying the coating technological method and the coating system, paint can be coated onto the external surface of a moulded glass fiber reinforced plastics motorboat shell; moreover, the paint resists high-speed seawater scouring, is good in adhesion, and withstands oceanic climate; the paint coat is smooth and flat; the light color is uniform; the color separation is clear; the paintcoat is so rich that the lustrousness is greater than 95%; moreover, a bright and colorful boat body can be obtained.

The invention relates to a fluorescent tube type neon light and belongs to the technical field of decorative lighting. The fluorescent tube type neon light comprises a tube casing, tube bases and electrodes. The tube bases are arranged at two ends of the tube casing, the electrodes are arranged on the tube bases, flexible circuit boards are arranged in the tube casing, beads are welded to the flexible circuit boards, two ends of each flexible circuit board are provided with an anode connector and a cathode connector which are connected with the electrodes, and a light-dispersing glue layer is arranged on an inner wall of the tube casing. The two flexible circuit boards are arranged back to back. The light-dispersing glue layer is a transparent silica gel layer mixed with artificial crystal, the tube casing is a transparent plastic pipe, and the beads are red, yellow, green, verdant, blue, purple and white. The fluorescent tube type neon light is simple in structure, easy to produce and manufacture, low in cost and convenient to use, and can not only be used for families, but also be used for shops, wineshops and pubs and the like. The advantages of a light-emitting diode (LED) light source are fully utilized, aeration is not required, a glass casing is not required, and the fluorescent tube type neon light is good in impact resistance, not easy to break, convenient to transport, wide in using range, high in light-emitting efficiency, energy-saving, electricity-saving, long in service life, uniform and soft in light color and rich and bright in color.

The invention discloses an efficient intelligent LED light source which comprises a package substrate and a chip unit arranged on the package substrate. The chip unit is divided into at least one naked type chip unit body and at least one wrapped type chip unit body, wherein the wrapped type chip unit body is formed by covering the surface of the naked type chip unit body with a first fluorescent layer. The color temperature of the naked type chip unit body is different from that of the wrapped type chip unit body. The naked type chip unit body and the wrapped type chip unit body are further covered with a second fluorescent layer. According to the efficient intelligent LED light source, the light-color consistency is good, the light is uniform, the light-color consistency is enhanced after color mixture, the problem that mixed light is partitioned and layered is solved, and the LED light source which is packaged integrally is good in airtightness, high in reliability, high in light-color quality and convenient and fast to manufacture.

An LED synchronous red-blue light panel light source used for promoting plant growth is composed of a high reflection panel, blue light LED light bars, a rare earth luminous panel, a light guiding board and an aluminum frame. The aluminum frame is a rectangular, the blue light LED light bars and the middle of the inner side face of the aluminum frame are fixed, the four side faces of the cuboid light guiding board, are connected with the blue light LED light bars around the cuboid light guiding board respectively, and the high reflection panel and the rare earth luminous panel adhere to the upper face and the lower face of the aluminum frame in a sealing mode. The LED synchronous red-blue light panel light source has the advantages that the structure is simple, implementation is easy, LED conversion is achieved from a traditional point light source to an area light source, the spectrum is wide, brightness is high, light colors are even, the capacity of damp and hot resistance is high, and service life is long; the full width at half maximum of an emitted red light peak is approximate to 70nm and is closer to red light in natural light, the irradiance proportion of red light and blue light is adjustable, coverage can be effectively performed on the absorption spectra of plants so that requirements of plant growth can be met, and the LED synchronous red-blue light panel light source can be widely applied to an intelligent plant factory and the fields of perpendicular planting, tissue culture seedling growth, home gardening and others.

The invention relates to a self-learning LED (Light-Emitting Diode) navigation aiding lamplight strength control device. The input ends of a transformer and a current transformer are connected to the secondary stage of an isolation transformer in a navigation aiding lamp loop after being connected in series; the output end of the transformer is connected with the input end of a power supply unit; the output end of the power supply unit is connected with the power supply input ends of a control unit and a driving unit; the output end of the current transformer is connected with the input end of the detection unit; the output end of the detection unit is connected with the input end of the control unit; the output end of the control unit is connected with the input end of the driving unit; and the output end of the driving unit is connected with an LED light source. The self-learning LED navigation aiding lamplight strength control device has the advantages that: the LED navigation aiding lamp can be used for directly replacing the original conventional navigation aiding lamp for an airport, so that an original dimming system is not required to be refitted; in a designed lamp, a high-power LED is taken as a light source; and compared with the conventional lamp, the self-learning LED navigation aiding lamplight strength control device has the characteristics of pure light color, low power consumption, long service life, high adaptability, and the like.

The invention discloses a high-luminous-efficiency white-light LAMP-LED structure and a packaging method, which solve the problems of poor wire soldering and poor luminous efficiency occurred in the white-light LAMP LED packaging process in the prior art. The white-light LAMP-LED structure comprises a flip LED chip, wherein the flip LED chip is mounted on a platform of a flat-headed type reversedL-shaped bracket; an LED fluorescent powder glue mixture wraps the flip LED chip and the upper end of the flat-headed type reversed L-shaped bracket to form a hemispherical LED fluorescent powder light emitting layer; epoxy resin coats the hemispherical LED fluorescent powder light emitting layer to form an epoxy resin lens; the flip LED chip and the platform of the flat-headed type reversed L-shaped bracket are connected by means of a die bonding solder paste; and the flat-headed type reversed L-shaped bracket is composed of a pair of matched flat-headed type reversed L-shaped positive electrode bracket and flat-headed type reversed L-shaped negative electrode bracket. The white-light LAMP-LED structure uses the flat-headed type reversed L-shaped bracket as a white-light LED packaging bracket, simplifies the die bonding and line welding process, improves the reliability of products, and greatly improves the luminous efficiency of a white-light LAMP LED.

The invention discloses an efficient red fluorescent material which is excited by an LED (light-emitting diode) chip from near ultraviolet to purple light. The composition of the efficient red fluorescent material is as follows: La[3-y]BW[1-x]MoxO9:Eu<3+>y, wherein x is smaller than or equal to 0.5 and greater than or equal to 0, and y is smaller than or equal to 1.5 and greater than or equal to 0. The invention also discloses a preparation method and a performance research result of the fluorescent material. The fluorescent material has strong broadband excitation in an area from ultraviolet to purple lights, has a sharp line excitation peak at the blue light position of 466nm, and is matched with the chip from the near ultraviolet to ultraviolet purple light and the blue light chip in the market respectively; a sharp line red light of which the main peak is 618nm is emitted; the color purity is high. Compared with the red phosphor in the market, the efficient red fluorescent material has the advantages of simple and mild preparation condition, good stability, low preparation cost and the like, so that the material has a wide application prospect.

The invention discloses a multipoint dispensing process and an LED (light emitting diode) device. The dispensing process sequentially comprises the steps of dehumidifying, die bonding, multipoint dispensing on a chip, heating and curing. The LED device comprises a bracket; the bracket is provided with a chip; and a fluorescent powder glue layer formed by a multipoint dispensing method is arranged on the chip. According to the LED device formed by the dispensing method disclosed by the invention, the fluorescent powder glue is uniformly distributed, the luminous efficiency of the LED device is high, and the uniformity and color temperature consistency of the luminous light spots of the LED device are good.

The invention discloses an LED (light-emitting diode) light source module, which comprises a plurality of light source cells and a substrate. Each light source cell comprises a silicon chip and a chip array; the silicon chip is arranged on the substrate; the chip array is arranged on the silicon chip; the silicon chip comprises an upper surface and a welding face; a circuit is arranged on the upper surface; the silicon chip is provided with a conducting hole; an LED chip is welded on the conducting hole; and the LED chip is connected with the circuit on the upper surface and the welding face. By coating fluorescent powder on the substrate, the LED light source module disclosed by the invention has evener light color; by directly adhering the LED chip welded with the silicon chip on the substrate, the occurrence of open circuit and short circuit is reduced, and heat radiation performance is good, and the packaging is convenient.

A backlight module provided by the present invention comprises a light source, an optical wavelength conversion film, a first group of optical films and a second group of optical films. The light source is applicable to emit a first ray of light. The optical wavelength conversion film is applicable to convert the first ray of light to a second ray of light with different wavelengths. The first group of optical films is configured between the light source and the optical wavelength conversion film. The optical wavelength conversion film is located between the first group of optical films and the second group of optical films, wherein the ratio of the penetration rate of the second group of the optical films with respect to the second ray of light and the penetration rate of the first group of the optical films with respect to the first ray of light is not less than 45%. Thereby, the backlight module is provided with uniform glaring colors.

The invention discloses mixed fluorescent powder matched with a blue-light chip and a preparation method thereof. The method comprises the following steps of: mixing red fluorescent powder A1-xByOzN2 / 3+4 / 3y-2 / 3z:xRe and yellow fluorescent powder Y3-a-bAl5Baa012:Ceb3+ according to a mass ratio of 50-35:100 in ethanol in the mass which is 2 to 10 times that of the yellow fluorescent powder, adding polyvinyl alcohol in the mass which is 5 to 10 times that of the yellow fluorescent powder and polyacrylamide in the mass which is 5 to 10 times that of the yellow fluorescent powder, and fully mixing to form a gelatinous mixture. In the method, two conventional fluorescent powders are mixed in absolute ethyl alcohol, and the polyvinyl alcohol and the polyacrylamide are added to be prepared into a supermolecular template for auxiliary mixing, so that the two fluorescent powders are uniformly dispersed to form a low-color temperature mixed fluorescent powder gel with stable homogeneous phase.

The invention relates to portable military camping LED energy-saving equipment with an intelligent charging function. In army camp, a flashlight is used as a lighting tool, and when a back-up battery is run down, the flashlight cannot be used. The energy-saving equipment comprises a charging collection box and an LED illuminating lamp component, wherein the charging collection box comprises a box body, a waterproof seal ring and a solar energy component; a waterproof air-permeable valve and a charging interface are arranged on a bottom cover; the LED illuminating lamp component is placed in the bottom cover; the LED illuminating lamp comprises a housing, a waterproof ventilated membrane, a silica gel seal ring A, a silica gel seal ring B, a lithium battery, a circuit, an LED lamp bead component, a charging contact, a membrane keyboard and a buckle; and the circuit comprises a PWN charging management circuit and a constant-current drive circuit that are optimally designed, and has the function of dump energy automatic detection. The energy-saving equipment has a simple structure, is convenient to carry, is waterproof and air-permeable, combines the solar energy charging and the other charging manners, can be specially used for army camp training, and can also be suitable for occasions such as earthquake relief, geological exploration and field work.

The invention discloses an Ir(III) complex, a preparation method of the Ir(III) complex, and application of the Ir(III) complex to preparation of an electroluminescent device. The structural formula of the Ir(III) complex is shown in the description. The preparation method of the Ir(III) complex Ir-Fppy2-phq comprises the following steps: enabling an Fppy ligand and IrCl3 to react to obtain an intermediate [Ir(Fppy)2Cl]2, and further enabling the intermediate [Ir(Fppy)2Cl]2 to react with a phq ligand to obtain the target product Ir-Fppy2-phq. The Ir(III) complex gives off red light, is good in stability and reproducibility, and can be used as a luminescent material to prepare the electroluminescent device. The prepared electroluminescent device has the advantages of good photoluminescence stability and pure light color, and is easy to be compounded with green light and blue light materials to obtain a white light electroluminescent device. The Ir(III) complex has an excellent application prospect in the fields of LEDs.

The invention discloses an organic light-emitting material and an organic light-emitting device thereof and belongs to the technical field of organic photoelectric materials. The organic light-emitting material takes 2,6-diamino-4H-cyclopentabithiophene-1,1,7,7-tetroxide as a main body structure; the main body structure is connected with different ligand radicals to obtain the organic light-emitting material; meanwhile, the organic light-emitting material has an electron and hole double-polar transmission capability. The organic light-emitting device prepared from the organic light-emitting material has higher light-emitting efficiency, lower driving voltage, better membrane stability and thermal stability and uniform light color.

The invention relates to a novel LED fluorescent powder coating process, which comprises the following steps: covering an LED wafer with an osmosis membrane; and applying the mixture solution of silica gel or epoxy resin and fluorescent powder on the LED wafer through osmosis effect of the osmosis membrane and deposition of the fluorescent powder. The process can ensure that the fluorescent powder mixture solution is directly cured on the LED wafer according to the size of the LED wafer while not being influenced by the size of a bracket opening, thereby uniformly applying the fluorescent powder mixture on the LED waver to prevent the occurrence of blue or yellow blocks or rings in the optical spots or color of light emitted by the LED lamp. In addition, the mixture of silica gel or epoxy resin and fluorescent powder has small thickness, which can enhance the light intensity of the LED.

The invention discloses a phosphor coating method and an LED device. The phosphor coating method comprises the steps that pasty-state phosphor glue which is mixed uniformly is provided; a masking plate is provided and mask holes are designed in the masking plate according to LED wafers in a substrate; the substrate that packages LED wafers is fixed and compressed relative to the masking plate, the masking plate is positioned over the substrate, and the LED wafers are exposed of the mask holes; the pasty-state phosphor glue is filled into the mask holes and flattened via brushing; and the phosphor glue is demolded and solidified. The shape and thickness of a phosphor layer can be accurately controlled via the phosphor coating method, a uniform optical field can be obtained, and LED devices in the same batch are unified in light color.

The invention discloses a white LED packaging structure capable of reducing color temperature drifting. The white LED packaging structure comprises a cup type support and an LED chip fixed to the support, wherein the LED chip is coated with transparent packaging glue and provided with a transparent sheet, and fluorescent powder glue is packaged above the transparent sheet. The invention further discloses a manufacturing method of the white LED packaging structure. The LED chip is fixed to the cup type support, the packaging glue coats the LED chip, the transparent sheet is fixed to the LED chip, and the fluorescent powder glue is then packaged on the transparent sheet. The transparent sheet is made of transparent silicon resin or silicone rubber or epoxy resin. The transparent sheet is arranged above the LED chip, and therefore the phenomenon that fluorescent powder is unevenly distributed due to fluorescent powder sedimentation and the thickness of the chip in the white LED packaging process can be eliminated, the color temperature consistency of a white LED is effectively improved, the yield of the white LED is increased, and the process is easy, convenient and easy to achieve.

The invention provides a projection light color adjusting method and a projection light color adjusting device, and relates to the technical field of vehicle-mounted projection. The method comprises the steps of obtaining gray values of an original image and a projection image corresponding to the original image; calculating to obtain a gray difference value according to the gray values of the original image and the projection image; according to a preset rule and the gray difference value, calculating to obtain a gray deviation value; and adjusting the projection light intensity according tothe gray scale deviation value, and obtaining the adjusted projection light intensity. According to the method, the gray scale deviation value is used for adjusting the projection light intensity, theadjusted projection light intensity is obtained, projection is carried out again, a clear projection image with the uniform light color is obtained, meanwhile, the method is simple in calculation process and good in practicability, and the problem that the vehicle-mounted projection effect is poor is effectively solved.

The invention discloses a surface light source. A radiator (1) and a substrate (2) are arranged at lowermost positions; a copper-coated circuit is arranged on the substrate (2); a light source (3) is distributed and welded on the substrate in the form of regular triangle; a light guide plate (5) is arranged on the plane of the light source (3); the distance between the light guide plate (5) and the plane of the light source (3) is 0.5 to 3 times that of the distance between adjacent light sources (3); the lower surface of the light guide plate (5) is provided with mesh points (4); and the distance between adjacent mesh points is less than 0.3 millimeter. Due to the adoption of a combination method, the working temperature of the LED light source can be lowered, light color of the LED light source (3) is kept consistent and high light energy conversion efficiency is kept in addition of the realization of soft light.