524results about How to "Improve reflection efficiency" patented technology

In a light emitting diode, a blue light emitting element is mounted on a base having a cup through a phosphor-containing mount so that the light emitting element is located within the cup and is mounted on the bottom of the cup through the phosphor-containing mount. The light emitting diode includes a light emitting element and a p electrode. By virtue of the above construction, blue light emitted from the light emitting element can be reflected from the lower surface of the p electrode without being radiated directly from the upper surface of the light emitting element to the outside of the light emitting diode. As a result, the blue light emitted from the light emitting element can be efficiently mixed with yellow light given off from the phosphor in the phosphor-containing mount to provide white light which is radiated to the outside of the light emitting diode with high efficiency. The white light can be perceived by a viewer to be uniformly radiated from the light radiating surface of the light emitting diode.

A reflection type liquid crystal display provided with a reflective layer, a coplanar gate electrode, a color filter layer and a transparent pixel electrode and a manufacture method thereof. The reflection type liquid crystal display can be manufactured on the same manufacture line as that of a transmission type liquid crystal display. In order to realize this manufacture method, a photolithography mask capable of forming both a gate electrode and a reflective layer, and a photolithography mask capable of forming only the gate electrode are prepared, and by using either one of the masks, the reflection type liquid crystal display in which both the gate electrode and the reflective layer are formed on a transparent insulation substrate, and the transmission type liquid crystal display in which only the gate electrode is formed, are selectively manufactured.

The present invention provides a light source device for projection display, comprising a light source to be supplemented and a laser light source. The laser emitted from the laser light source and the light emitted from the light source to be supplemented are mixed and then output in a same direction.

An air disinfection and cleaning device is provided that includes: a cylindrical reflector having a cylindrical inner surface in which an air flows from an upper end to a lower end and the cylindrical inner surface is subjected to mirror finishing; a rod shaped ultraviolet lamp disposed at the center within the cylindrical reflector parallel to the long side; photocatalytic sheet filters being air permeable photocatalytic sheet filters having a diameter nearly equal to an inner diameter of the cylindrical reflector, provided respectively at one end and the other end in the cylindrical reflector, and being penetrated by the ultraviolet lamp at the center thereof; and a copper sheet filter being an air permeable photocatalytic sheet filter having a diameter nearly equal to an inner diameter of a cylinder member and closing a lower end opening of the cylindrical reflector.

A wrist-worn electronic device includes an antenna that receives externally transmitted radio signals; a case of which at least part is made of a non-conductive material; an information display unit that is housed inside the case, is flat, and is made of a non-conductive material; a back cover that is attached to the case and is made of a conductive material; and a reception unit that is positioned and housed inside the case between the information display unit and the back cover, and processes a reception signal based on radio signals received by the antenna. The antenna has an antenna electrode that is disposed and formed as a line around the outside of the information display unit. The back cover is connected to the ground potential of the reception unit and reflects the radio signals.

A heat-insulating coating for reflecting solar heat rays, which is composed of two parts: a primer and a top-coat. 10-50%, adhesive polymer resin 10-70%; the percentage of solid matter in the top coating is: surface coating reflective heat ray composite material 5-40%, heat reflective material 10-50%, adhesive Polymer resin 10-70%. The coating of the present invention is mainly used as the exterior surface coating of buildings, automobiles, trains, pipelines, storage tanks, etc. When the thickness of the dry coating film is 0.3-0.5mm, the total reflectance to heat rays can reach 85-90%, which can effectively prevent Thermal radiation from the sun.

The invention relates to a side light type LED backlight module. The backlight module comprises a light guiding plate made of a transparent material, an LED light source, a fluorescent film, and a transparent heat conducting material. At least one side of the light guiding plate is connected with support bars; and an accommodating space is formed between the light guiding plate and the support bars. The LED light source comprises a circuit board and a plurality of LED chips connected with the circuit board. The fluorescent film is arranged between the LED chips and the light guiding plate, and mixes the light rays emitted by the LED chips so as to produce white backlight or other required color backlights; and the LED light source and the fluorescent film are positioned inside the accommodating space. The transparent heat conducting material is filled in the accommodating space between the light guiding plate and the support bars. The LED backlight module integrally encapsulates a plurality of LED chips, thereby solving the problems of low light source density and insufficient brightness caused by the separately encapsulated LED chips in array. Consequently, the side light type backlight module is applied to large-scale ultra thin type LCD devices.

For lasting stable vapor deposition of a material for a long term, the present invention provides the vapor deposition crucible comprising an evaporation chamber defined by a container part of the material and an orifice plate controlling vapor pressure of the material evaporated therein, and a pressure-controlling chamber defined in a space between the orifice plate and a discharge plate through which the material is discharged to the exterior of the vapor deposition crucible. A protrusion extending outwardly from the pressure-controlling chamber and having a second opening on its distal end may be provided on the upper surface of the discharge plate, and a heater may be provided on the side surface of the protrusion to oppose the side surface of the protrusion with an insulation mechanism provided at a position higher than the heater but lower than the second opening. In the vapor deposition crucible, temperature of the pressure-controlling chamber may be kept higher than that of the evaporation chamber by the other heaters.

The invention discloses an array antenna for generating microwave orbital angular momentum based on a phase gradient super-surface. The array antenna is formed by the arrangement of phase shift units (1), each phase shift unit (1) comprises a dielectric plate (3), a metal patch (4) is arranged on the surface of the dielectric plate (3), an upper hole (5) is formed in the middle of the metal patch (4), a metal ground plate (6) is arranged at the bottom of the dielectric plate (3), a lower hole (7) is formed in the middle of the metal ground plate (6), and a metal pipe (8) is arranged at the middle of the dielectric plate (3) and communicates with the upper hole (5) and the lower hole (7). The array antenna has the characteristics of small size, light weight and low cost; meanwhile, the continuous control of the orbital angular momentum in phases of 0 to 2Pi is further achieved, and obvious vortex orbital angular momentum is generated; and moreover, the array antenna has an excellent reflection effect.

The invention provides an AlGaInP-based light emitting diode and a manufacturing method therefor, wherein a P electrode adopts a through hole technology; equivalently, a P electrode through hole for running through an epitaxial layer is formed in a direction perpendicular to the direction of the plane where the epitaxial layer is located, to enable the P electrode main body to be partially locatedin an n type epitaxial layer; and the P electrode and an N electrode are manufactured, and then the P electrode and the N electrode are kept in the same height. The problem of increasing of the packaging difficulty caused by easy side tilting of an LED chip in chip packaging and bonding due to relatively high height difference existing between the P electrode and the N electrode in the existing LED can be solved; in addition, an isolation trench is also formed in the LED on the above basis, so that the problem of easy electric leakage between the P / N electrodes caused by extrusion and deformation of soldering flux in the existing LED packaging and bonding process also can be solved; and in addition, an ODR reflector mirror structure comprises an ODR reflector mirror dielectric film layerand an ODR reflector mirror metal layer, so that high reflection efficiency is realized.

A surface acoustic wave device, includes: an interdigital transducer serving as an electrode pattern to excite a Rayleigh surface acoustic wave, the interdigital transducer including a comb-tooth-shaped electrode having a plurality of electrode fingers; a piezoelectric substrate on which the interdigital transducer is formed, the piezoelectric substrate being made of a quartz substrate that is cut out at a cut angle represented by an Euler angle representation (φ, θ, Ψ) of (0°, 95°≦θ≦155°, 33°≦|Ψ|≦46°); electrode finger grooves formed between the electrode fingers of the comb-tooth-shaped electrode; and electrode finger bases being quartz portions sandwiched between the electrode finger grooves and having upper surfaces on which the electrode fingers are positioned The surface acoustic wave device provides an excitation in an upper limit mode of a stop band of the surface acoustic wave.

An embodiment of the present invention has an insulating substrate in which a first concave hole for mounting an LED chip and a second concave hole for connecting a metallic small-gauge wire are formed, where a metallic sheet that serves as a first wiring pattern is formed at a portion that includes the first concave hole, a metallic sheet that serves as a second wiring pattern is formed at a portion that includes the second concave hole, an LED chip is mounted upon the metallic sheet inside the first concave hole, the LED chip is electrically connected to the metallic sheet inside the second concave hole via a metallic small-gauge wire, and the chip-type LED is sealed with a clear resin.

The present invention aims at compatibility between the improvement in luminance or suppression of deterioration in luminance and the improvement in contrast with respect to a display apparatus and a color cathode-ray tube. Each of the display apparatus and the color cathode-ray tube according to the present invention includes: a fluorescent screen having a color-filter layer and a phosphor layer, which is formed inside a panel glass having light transmissivity of 55% to 20% when a wavelength is 546 nm and a plate thickness is 20 mm and in which at least the phosphor layer is formed by the transfer method.

Disclosed are an optical fiber probe for side imaging and a method of manufacturing the same. An optical fiber probe according to an aspect of the invention includes a photonic crystal fiber, and an optical fiber lens that is formed by applying heat to a predetermined region including one end of the photonic crystal fiber and substantially removing air holes formed in the predetermined region. The optical fiber lens includes a light diffusion region that diffuses light propagating along a core of the photonic crystal fiber and focuses the light to enable side imaging, a reflector surface that reflects the light at a right angle to enable side imaging, and a lens surface that focuses the light. A small-sized optical fiber probe can be manufactured using a simple manufacturing process, and the optical fiber probe can be miniaturized. Therefore, a light measurement system can be miniaturized, which makes it possible to obtain side images of a very small sample, such as a blood vessel.

A microscope, endoscope or optical coherence tomograph, comprising a light source, a flexible light transmitter (18) for receiving and transmitting light from the light source, an optical element (20) with a forward end (30) for receiving the light from the light transmitter (18) and a rear wall (26) having an internal surface for reflecting the light laterally, and an external sleeve (14) enclosing the optical element (20) and transparent to the light in at least a region of the sleeve where the light is directed by the internal surface (26). The internal surface (26) has an optical figure suitable for focussing the light to an observational field (28) external to the sleeve (14). A confocal configuration may be used.

The invention provides a water nano compound photosensitive coating and a preparation method thereof and a photosensitive film formed by the coating. The water nano composite photosensitive coating is formed by the way that nano material with excellent properties is compounded with film forming agent, thus refractive index modulation degree of photosensitive coating is improved. The coating comprises the following components (by weight percent): 10-50% of film forming agent, 15-30% of monomer, 20-50% of photoinitiator, 0.05-1% of photosensitizer, 2-10% of crosslinking agent and 0.1-1% of nano material. The holographic photosensitive film of the invention comprises a base film, a photosensitive nano compound polymer coating and a surface protective film. The reflecting holographic photosensitive film has higher luminous sensitivity, reflection efficiency and refractive index modulation degree, storage life is long, and hologram is stable.

Disclosed are a color compensation multi-layered member for a display apparatus, an optical filter for a display apparatus having the same, and a display apparatus having the same. The color compensation multi-layered member for a display apparatus includes a thin layer having a thickness of about 780 nm or less and a first refractive index; a first thick layer having a greater thickness than the thin layer, being formed on a surface of the thin layer, and having a second refractive index; and a second thick layer having a greater thickness than the thin layer, being formed on another surface of the thin layer, and having a third refractive index.

An organic light emitting device may includes a pixel electrode formed on a substrate and having a reflecting layer and a transparent electrode layer, a pixel defining layer having an opening to expose a portion of the pixel electrode, an organic layer formed on the opening, and an upper electrode formed on an entire surface of the substrate. The reflecting layer may be a material having excellent reflection efficiency and having an oxidation-reduction potential difference of about 0.3 or less with respect to the transparent electrode layer.

To provide a light-emitting device mounting a light-emitting element having a metal film on the rear side surface, which is excellent in light extraction efficiency since it has high heat dissipating properties and high light reflection efficiency, and which can suppress the reduction of light extraction efficiency due to the deterioration with time.A light-emitting device which comprises:a substrate made of an inorganic insulating material,a metal conductor layer formed on the mounting portion of the substrate,a conductive protective layer formed on the above metal conductor layer,a light-emitting element having a metal film on the rear side surface, and mounted on the mounting portion of the above substrate so that the metal film faces the conductive protective layer and is located inside the edge of the conductive protective layer,an electroconductive bonding material to bond the light-emitting element with the conductive protective layer,a reflection film formed on the mounting surface of the above substrate in such a shape as to exclude the conductive protective layer and the vicinity around it, andan insulating protective layer formed on the mounting surface of the substrate so as to cover the entirety of the above reflection film including its edge.

A conductive ink composition is obtained by dispersing, in an organic solvent, a solid material made from metal fine particles each coated with protective colloids each made of at least two organic compounds, the metal fine particles consisting of an alloy containing at least a noble metal. Each of the protective colloids is made from, e.g., a raw material containing an (A) amine and a (B) carboxylic acid. By applying and baking the conductive ink composition, grain growth is restrained. This allows acquirement of a metal film whose surface smoothness is excellent, and whose adhesiveness to an application target is improved as compared with that of a metal film made from a conventional conductive ink composition.

A transflective liquid crystal display device includes a pixel region having reflective and transmissive portions. A first passivation layer having one or more protrusions in the reflective portion is disposed on a thin film transistor formed on a first substrate. A reflective layer disposed on the first passivation layer in the reflective portion is uneven, at least in part due to the protrusions. A second passivation layer and a pixel electrode are disposed on the first passivation layer. A color filter layer disposed on an inner surface of the second substrate has at least one through hole in the reflective portion. An overcoat layer disposed on the color filter layer has an open portion in the transmissive portion. A common electrode is disposed on the overcoat layer and a liquid crystal layer is disposed between the pixel electrode and the common electrode.

The invention relates to a high lighting effect pattern substrate and a manufacturing method thereof. Centrosymmetric patterns are etched on the substrate and extend to the periphery of the substrate. The centrosymmetric patterns are quadrates, regular hexagons, circles, equilateral rhombuses with 60 degrees of angles, regular hexagons formed by six same regular triangles, regular hexagons formed by six symmetrically distributed same regular triangles with circular centers and embedded circles, and regular hexagons formed by six symmetrically distributed same regular hexagons with circular centers and being separated from the circles. The centrosymmetric patterns extend to the periphery of the substrate as reference units so that the vertical distance between the side lengths of two adjacent quadrates, the vertical distance between the side lengths of two adjacent regular triangles, the vertical distance between the side lengths of two adjacent regular hexagons, the vertical distance between the side lengths of two adjacent equilateral rhombuses, the shortest distance between circumferences of two adjacent circles and the shortest distance between the circles and the adjacent regular hexagon are mutually equal.

The invention provides a reflective material, a reflective membrane and a preparation method thereof. The reflective material comprises 30 to 50 weight percent of barium sulfate powder, 5 to 8 weight percent of titanium white powder, 5 to 10 weight percent of pearl powder, 10 to 20 weight percent of film forming aid and the balance of organic solvent. The reflective material provided by the invention has the advantages of high reflectivity, oxidation and corrosion resistance, low cost and the like.

A repeller structure is provided in a plasma generating chamber of an ion source facing a cathode that emits electrons for ionizing a source gas in the plasma generating chamber to generate a plasma. The repeller structure reflects the ions toward the cathode. The repeller structure includes a sputtering target that is sputtered by the plasma to emit predetermined ions, the sputtering target including a through hole that connects a sputtering surface and a back surface of the sputtering target; and an electrode body that is inserted in the through hole, the electrode body including a repeller surface that is exposed to the sputtering surface side through the through hole.

The invention discloses a graph masking method and a method for improving the luminous efficiency of a GaN base LED (light-emitting diode). The method comprises the steps: selectively etching a GaN thin layer by a mask with regularly-distributed patterns to form a plurality of regularly-distributed grooves; and making the grooves in a GaN epitaxial layer to form a hollow cavity by controlling the lateral growing speed during the epitaxial growth of the GaN. As an LED structure is grown on a GaN template with the regularly-distributed masking type hollow cavities, the method effectively improves the luminous efficiency.

An IDT electrode 2 and an electrode pad 3 are formed on one principal face of a piezoelectric substrate 1 and a circular electrode 4 is formed so as to surround these components. The circular electrode 4 is connected to a radiating conductor 15 formed on a bottom face of a circuit board 11 through a via conductor 14 formed within the circuit board 11. Thus, since heat generated in the IDT electrode 2 is easy to be released to the outside through the circular electrode 4, the via conductor 14 and the radiating conductor 15, adverse effects due to the heat can be prevented, thereby improving high power durability.

An electronic device for wireless communications, which may typically be a PC card 21, is adapted to upwardly turn the direction of radiation of the radio wave radiated from an antenna regardless of the mounted position of the antenna. The PC card 21 is contained in or removably fitted to a personal computer 11 so as to provide the personal computer 11 with wireless communication functions. The PC card 21 comprises amounting base board 24 fitted to the personal computer 11 with an end thereof projecting from the personal computer 11 and mounting a wireless 10 circuit, at least a chip antenna 23 arranged at the projecting region of the mounting base board 24 and electronically connected to the wireless circuit and a reflector 28 arranged below the chip antenna 23 and a housing covering the mounting base board 24, and adapted to upwardly reflect at least part of the radio wave that is radiated from the chip antenna 23 and directed downward.

The invention provides a surface acoustic wave gas sensor based on a two-dimensional phonon crystal reflecting grating, belonging to a novel gas sensor structure in the technical field of surface acoustic waves. The surface acoustic wave gas sensor based on a two-dimensional phonon crystal reflecting grating adopts a single-ended resonator structure; two-dimensional phonon crystals composed of a gas sensory semiconductor metal oxide and an air column are used as reflecting gratings at the two ends of the resonator; the phonon crystal reflecting grating has double functions of gas sensing and reflection; the two-dimensional air column phonon crystal gas sensor structure has the characteristics of large surface area, high sensitivity and the like; the two-dimensional phonon crystal reflecting grating is higher than the traditional one-dimensional metal strip reflecting grating in reflection efficiency; and meanwhile, the size of the reflecting grating is reduced, thereby being very favorable for obtaining a surface acoustic wave gas sensor with a high integration level.

The invention discloses a multilayered co-extruded bidirectional-stretching light reflection polyester thin film and a manufacturing method thereof. The thin film is characterized by being composed of layers A and layers B and has a three-layered or five-layered structure; the sum of the thicknesses of the layers A is 10%-20% of the total thickness of the thin film; each layer A is composed of following materials in percentage by weight: 62.5%-79.88% of polyethylene glycol terephthalate slices, 20%-35% of inorganic particles, 0.05%-1% of a heat stabilizing agent, 0.05%-1% of a light stabilizing agent and 0.02%-0.5% of a fluorescent whitening agent; each layer B is composed of following materials in percentage by weight: 68%-80% of the polyethylene glycol terephthalate slices, 19.9%-30% of functional resin, 0.05%-1% of a heat stabilizing agent and 0.05%-1% of a light stabilizing agent. The thin film disclosed by the invention has the high reflectance and the ageing-resistant performance and can be applied to fields of parts of liquid crystal panels or planar light sources, illumination tools, illumination advertising boards and the like.