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118results about How to "Improve electron emission efficiency" patented technology
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Electron-emitting devices, electron sources, and image-forming apparatus
InactiveUS7012362B2Improve electron emission efficiencyRapid responseDischarge tube luminescnet screensNanoinformaticsFiberElectron source
Provided are electron-emitting devices, electron sources, and image-forming apparatus improved in electron emission efficiency and in convergence of trajectories of emitted electrons. An electron-emitting device has a first electrode and a second electrode placed in opposition to each other with a gap between first and second electrodes on a surface of a substrate, and a plurality of fibers electrically connected to the first electrode and containing carbon as a main component, and the fibers are placed on a surface of the first electrode facing the second electrode.
Owner:CANON KK
DLC field emission with nano-diamond impregnated metals
InactiveUS20070126312A1Improve electron emission efficiencyCathode ray tubes/electron beam tubesDischarge tube/lamp detailsDiamond-like carbonMaterials science
Diamond-like carbon based energy conversion devices and methods of making and using the same which have improved conversion efficiencies and increased reliability are provided. In one aspect, such a device may include a cathode having a plurality of nano-diamond particles disposed in a metal matrix, where the plurality of nano-diamond particles protrude partially from the metal matrix. A layer of diamond-like carbon (DLC) may be deposited on the plurality of nano-diamond particles and the metal matrix. Additionally, an anode may be located in a position to face the plurality of nano-diamond particle protrusions.
Owner:SUNG CHIEN MIN
Luminescence crystal particle, luminescence crystal particle composition, display panel and flat-panel display
InactiveUS20010024084A1Uniform electron-emitting propertyImprove adhesionDischarge tube luminescnet screensGas discharge electrodesDisplay deviceVolumetric Mass Density
A luminescence crystal particle which emits light upon irradiation with an energy beam and which has a crystal defect density of 5x107 defects / cm2 or less in a region located from the surface of the luminescence crystal particle to a portion as deep as the energy beam reaches.
Owner:SONY CORP
Luminescence crystal particle, luminescence crystal particle composition, display panel and flat-panel display
InactiveUS6819041B2Improve adhesionImprove propertiesDischarge tube luminescnet screensGas discharge electrodesDisplay deviceVolumetric Mass Density
Owner:SONY CORP
Diamond-like carbon thermoelectric conversion devices and methods for the use and manufacture thereof
InactiveUS20050275330A1Conveniently formedLow costThermionic cathodesDischarge tube solid thermionic cathodesElectricityDiamond-like carbon
Diamond-like carbon based thermoelectric conversion devices and methods of making and using the same which have improved conversion efficiencies and increased reliability. The device can include a cathode having a base member with a layer of diamond-like carbon material such as amorphous diamond coated over the cathode. A dielectric intermediate member can be electrically coupled between the diamond-like carbon material and an anode. Various additional layers and configurations can allow for improved performance such as multiple cathode layers and / or multiple intermediate layers. The thermoelectric conversion devices can be configured as an electrical generator and / or a cooling device and can be conveniently formed. In addition, the devices of the present invention do not require formation of a vacuum space and are typically completely solid throughout. As a result, the devices of the present invention are susceptible of mass production at reduced costs and have improved conversion efficiencies and reliability.
Owner:SUNG CHIEN MIN
Pixel array
InactiveUS6919128B2Improve electron emission efficiencyOptical radiation measurementNanoinformaticsElectronMolecular physics
Owner:THE OHIO STATE UNIV RES FOUND
Electron emitter and method of producing the same
InactiveUS7307383B2Improve electron emission efficiencyIncrease the number ofWeighing apparatus using elastically-deformable membersDischarge tube luminescnet screensTriple junctionElectron
An electron emitter includes an emitter section having a plate shape, a cathode electrode formed on a front surface of the emitter section, and an anode electrode formed on a back surface of the emitter section. A gap is formed between an outer peripheral portion of the cathode electrode and the front surface of the emitter section. The front surface of the emitter section contacts a lower surface of the outer peripheral portion to form a base end as a triple junction. The gap expands from the base end toward a tip end of the outer peripheral portion.
Owner:NGK INSULATORS LTD
Dielectric device
InactiveUS20070222067A1Improve efficiencySuppress impairment of propertySemiconductor/solid-state device detailsNanoinformaticsOptoelectronicsFine particulate
The dielectric device includes a substrate, a lower electrode, a dielectric layer, and an upper electrode. The lower electrode is bonded onto the substrate. The dielectric layer is bonded onto the lower electrode. The dielectric layer is obtained through thermal treatment of a film layer formed by spraying of a powdery dielectric material and a fine-particulate metal. In the thus-formed film layer, the metal is dispersed in the matrix of the dielectric material. Thermal treatment of the film layer causes migration of the metal in the film layer. This metal migration causes a lower-electrode-adjacent portion and upper-surface-adjacent portion of the dielectric layer to have different metal contents.
Owner:NGK INSULATORS LTD
Electron emission device, electron emission type backlight unit and flat display apparatus having the same
InactiveUS20070018553A1Improve electron emission efficiencyImprove efficiencyDischarge tube luminescnet screensCathode ray tubes/electron beam tubesEmission efficiencyGate voltage
An electron emission device with improved electron emission efficiency and an electron emission type backlight unit with a new structure using the electron emission device in which an electric field between an anode electrode and a cathode electrode is effectively blocked, and electrons are emitted continuously and stably by a low gate voltage, thereby improving light-emitting uniformity and efficiency. Also provided is a flat display apparatus employing the electron emission type backlight unit having the electron emission device. The electron emission device includes a base substrate; a cathode electrode formed on the base substrate having a cross-section whose height is greater than its width; a gate electrode that is formed on the base substrate and alternately separated from the cathode electrode and has a cross-section whose height is greater than its width; and an electron emission layer disposed on a surface of the cathode electrode toward the gate electrode.
Owner:SAMSUNG SDI CO LTD
Electron-emitting device, electron source and image-forming apparatus, and method for manufacturing electron emitting device
InactiveUS7034444B2Reduce capacityReduce voltageDischarge tube luminescnet screensCathode-ray/electron-beam tube vessels/containersElectron sourceLight beam
To provide an electron-emitting device, an electron source, an image-forming apparatus, and a method for manufacturing the electron-emitting device whereby it is possible to reduce a device capacity and a driving voltage, to improve the efficiency of emitting electrons, and to obtain high-resolution beam. The extracting electrode and the cathode electrode are provided on an insulating substrate, a layer having growth selectivity of fibrous carbon is formed on the cathode electrode, and the fibrous carbon is grown via catalyst particles formed on the layer.
Owner:CANON KK
Method for manufacturing electron-emitting device, methods for manufacturing electron source and image display device using the electron-emitting device
InactiveUS7572164B2Improve electron emission efficiencyImage stabilizationNon-emitting electrodes manufacturePhoto-emissive cathodes manufactureElectron sourceDisplay device
Owner:CANON KK
Method for manufacturing electron-emitting device, methods for manufacturing electron source and image display device using the electron-emitting device, and information displaying/reproducing apparatus using the image display device
InactiveUS20050282458A1Stabilize electron emission characteristicImprove electron emission efficiencyNon-emitting electrodes manufacturePhoto-emissive cathodes manufactureEngineeringElectron source
Owner:CANON KK
Electron-Emitting Device, Electron Source Using the Same, Image Display Apparatus, and Information Displaying and Reproducing Apparatus
InactiveUS20080122336A1Improve display qualityImprove efficiencyDischarge tube luminescnet screensLamp detailsElectron sourceMinimum distance
An electron-emitting device is provided with improved electron emitting efficiency. An electron-emitting device includes first and second electroconductive films disposed (21a, 21b) on a surface of a substrate in opposition to each other to form a gap (8) between ends of the first and second electroconductive films. The end of the first electroconductive film includes a portion (A) the minimum distance d1 from which to the second electroconductive film (B) is 10 nm or less. Let d2 denote a minimum distance between the end of the first electroconductive film which is away from the portion the minimum distance d1 from which to the second electroconductive film is 10 nm or less by the minimum distance d1 and the end of the second electroconductive film. The relation of d2 / d1≧1.2 is satisfied.
Owner:CANON KK
Diamond-like carbon thermoelectric conversion devices and methods for the use and manufacture thereof
InactiveUS7235912B2Improve conversion efficiencyImprove reliabilityThermionic cathodesDischarge tube solid thermionic cathodesElectricityDiamond-like carbon
Diamond-like carbon based thermoelectric conversion devices and methods of making and using the same which have improved conversion efficiencies and increased reliability. The device can include a cathode having a base member with a layer of diamond-like carbon material such as amorphous diamond coated over the cathode. A dielectric intermediate member can be electrically coupled between the diamond-like carbon material and an anode. Various additional layers and configurations can allow for improved performance such as multiple cathode layers and / or multiple intermediate layers. The thermoelectric conversion devices can be configured as an electrical generator and / or a cooling device and can be conveniently formed. In addition, the devices of the present invention do not require formation of a vacuum space and are typically completely solid throughout. As a result, the devices of the present invention are susceptible of mass production at reduced costs and have improved conversion efficiencies and reliability.
Owner:SUNG CHIEN MIN
Flat-panel display device with gate-modulated multi-tilt cathode structure and its preparing process
InactiveCN101071732AIncrease the amount of electron emissionImprove electron emission efficiencyControl electrodesImage/pattern display tubesImaging qualityCarbon nanotube
The invention relates to a flat-panel display of a grid-controlled multiple-tilted cathode structure and the making process thereof, comprising: sealed vacuum cavity composed of anode glass panel, cathode glass panel, and peripheral glass frame; anode conducting layer on the anode glass panel and fluorescent powder layer prepared on the anode conducting layer; grid lead layer, carbon nanotube and grid-controlled multiple-tilted cathode structure on the cathode glass panel; supporting wall structure and degassing agent auxiliary component between the anode glass panel and cathode glass panel, and it can further raise electron emission efficiency of carbon nanotube cathode and number of emitted electrons, improve control function of grid, helps to improve display resolution and image quality, and has advantages of stable and reliable making course, simple making process, low making cost, and simple structure.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Carbon-nanotube cold cathode and method for fabricating the same
InactiveUS20060103287A1Improve electron emission efficiencyImprove efficiencyNanoinformaticsThermionic cathodesCarbon nanotubeCold cathode
A method for fabricating a carbon-nanotube cold cathode is described. A conductive layer is formed on a substrate, and then a metal film is selectively formed on predetermined emitter regions of the conductive layer. An anodization treatment is done to the metal film to form numerous nanopores through the metal film. Thereafter, carbon nanotubes are deposited into the nanopores through electrodeposition, wherein one end of each carbon nanotube is exposed outside a corresponding nanopore of the metal film.
Owner:CHUNGHWA PICTURE TUBES LTD
Surface tunneling miniature electron source, array thereof and implementation method of array
ActiveCN107248489ASimple structureImprove electron emission efficiencyCathode ray tubes/electron beam tubesTransit-tube cathodesElectron sourceMicrowave tube
Owner:PEKING UNIV
Electron emitting device
InactiveUS20050133735A1Low energy bandLow stateDischarge tube luminescnet screensLamp detailsElectronAtomic physics
The present invention relates to an electron emitting device having a structure for efficiently emitting electrons. The electron emitting device has a substrate comprised of an n-type diamond, and a pointed projection provided on the substrate. The projection comprises a base provided on the substrate side, and an electron emission portion provided on the base and emitting electrons from the tip thereof. The base is comprised of an n-type diamond. The electron emission portion is comprised of a p-type diamond. The length from the tip of the projection (electron emission portion) to the interface between the base and the electron emission portion is preferably 100 nm or less.
Owner:SUMITOMO ELECTRIC IND LTD
Metal halide lamp and metal halide lamp lighting device
InactiveUS20050134182A1Increase transmit powerLow level of sensitivityVehicle headlampsPoint-like light sourceNoble gasRubidium
A metal halide lamp comprises a refractory, light-transmitting hermetic vessel, a pair of electrodes sealed in the hermetic vessel, a discharge medium including a halide and a rare gas, and metal storing means storing at least one selected from the group consisting of potassium (K), rubidium (Rb) and cesium (Cs), the metal storing means being heated during lighting and gradually discharging at least one metal in the hermetic vessel.
Owner:HARISON TOSHIBA LIGHTING CORP
Flat board display of splayed inclined bar control structure and its making process
InactiveCN101080123AImprove control efficiencyStrong electric field strengthElectrical apparatusElectroluminescent light sourcesImaging qualityCarbon nanotube
This invention relates to a flat display of slant grid-control structure and its manufacturing method including a closed vacuum cavity composed of an anode glass panel, a cathode glass panel and glass frame around it, in which, an anode conductive layer is set on the anode glass panel and a fluorescent powder layer is prepared on the anode conductive layer, a supporting wall structure and attached elements of a getter is set between the anode glass panel and the cathode glass panel, a grid lead layer, carbon nanometer tubes and a slant grid-control structure are set on the cathode glass panel to control efficiency of the grid structure and increase the electronic emission efficiency and quantity to increase image quality of the device.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Electron-emitting device, electron-emitting apparatus, image display apparatus, and light-emitting apparatus
InactiveUS7186160B2Increase ratingsReduce vacuumNanoinformaticsImage/pattern display tubesCapacitancePotential difference
An electron-emitting device in which the specific capacitance and the drive voltage are reduced, and which is capable of obtaining a finer electron beam by controlling the trajectory of emitted electrons. An electron-emitting portion of an electron-emitting member is positioned between the height of a gate and the height of an anode. When the distance between the gate and a cathode is d; the potential difference at driving the device is V1; the distance between the anode and the substrate is H; and the potential difference between the anode and the cathode is V2, then the electric field E1=V1 / d during driving is configured to be within the range from 1 to 50 times E2=V2 / H.
Owner:CANON KK
Triode type field emission display with high resolution
ActiveUS20050236961A1Improve electron emission efficiencyHigh resolutionDischarge tube luminescnet screensLamp detailsInsulation layerFluorescence
A triode type field emission display in accordance with the invention includes: a cathode electrode (12) formed on an insulation substrate (10); an insulation layer (13) formed on the cathode electrode; a gate electrode (14) formed on the insulation layer; a number of emitters (16); and an anode electrode (18) with a phosphor layer (19) positioned over the gate electrode. The emitters are distributed on portions of the cathode electrode at two sides of the insulation layer, and a height of the emitters is less than a thickness of the insulation layer. The emitters are capable of emitting electrons from tips thereof, and the emitted electrons are focused on the phosphor layer by an electric field generated by the gate electrode.
Owner:HON HAI PRECISION IND CO LTD +1
Method for manufacturing electron-emitting device, methods for manufacturing electron source and image display device using the electron-emitting device, and information displaying reproducing apparatus using the image display device
InactiveUS20090273274A1Improve electron emission efficiencyImage stabilizationDischarge tube luminescnet screensLamp detailsElectron sourceDisplay device
Owner:CANON KK
Light emission device and display device
InactiveUS20080116809A1Increase efficiencyReduce temperature differenceDischarge tube luminescnet screensElectric lighting sourcesPositive temperatureSurface heat
A light emission device and a display device having the light emission device are provided. The light emission device includes first and second substrates that are arranged to face each other, an electron emission unit that is located on a first surface of the first substrate facing the second substrate and has electron emission regions and driving electrodes, a light emission unit that is located on a surface of the second substrate and has an anode electrode and one or more phosphor layers, and a surface heat generation unit that is located on a second surface (or outer surface) of the first substrate facing away from the second substrate to control a temperature of the first substrate using a resistive layer having a positive temperature coefficient (PTC) property.
Owner:SAMSUNG SDI CO LTD
Electron emission device
InactiveUS20070096624A1Enhanced electron emission uniformityImprove electron emission efficiencyDischarge tube luminescnet screensCathode ray tubes/electron beam tubesInsulation layerCathode electrode
An electron emission device is provided. The electron emission device includes first and second substrates facing each other, a cathode electrode arranged on the first substrate, at least one opening electron emission region arranged on the cathode electrode, an insulation layer arranged on the cathode electrode and provided with at least one opening corresponding to the at least one opening electron emission region, and a gate electrode arranged on the insulation layer and provided with at least one opening corresponding to the at least one electron emission region. A width H1 of the at least one opening of the insulation layer is equal to or greater than twice a thickness T1 of the insulation layer.
Owner:SAMSUNG SDI CO LTD
Electron emission device, electron emission type backlight unit and flat display apparatus having the same
InactiveUS20070018565A1Improve electron emission efficiencyImproving light-emitting uniformityDischarge tube luminescnet screensCathode ray tubes/electron beam tubesAuxiliary electrodeEmission efficiency
An electron emission device with improved electron emission efficiency and an electron emission type backlight unit with a new structure using the electron emission device in which an electric field between an anode electrode and a cathode electrode is effectively blocked, and electrons are emitted continuously and stably by a low gate voltage thereby improving light-emitting uniformity and light-emitting efficiency. Also provided is a flat display apparatus employing the electron emission type backlight unit having the electron emission device. The electron emission device includes a base substrate; a cathode electrode formed on the base substrate; a gate electrode that is formed on the base substrate and alternately separated from the cathode electrode when there are more than one; an electron emission layer disposed on a surface of the cathode electrode; and a supplementary electrode formed on the cathode electrode or the gate electrode and is higher than the corresponding electrode.
Owner:SAMSUNG SDI CO LTD
Method for preparing pressure sensor with nano SiC thin film
InactiveCN101586992AUniform textureIncrease the areaFluid pressure measurement using piezo-electric devicesNanostructure manufactureScreen printingSlurry
The invention relates to the field of pressure sensor design and manufacturing and discloses a method for preparing a pressure sensor with a nano SiC thin film, which comprises the following steps: a, preparing nano SiC slurry; b, preparing a cathode emitter plate; c, preparing an emitter; and d, forming the sensor. The method prepares the nano SiC thin film by screen printing and is low in manufacturing cost; the obtained nano SiC thin film is large in area and uniform; and the manufactured sensor is high in sensitivity, good in stability and long in service life.
Owner:XI AN JIAOTONG UNIV
Gas-discharge tube and display apparatus
InactiveUS20050088091A1Stable discharge characteristicsEliminate dispersionSustain/scan electrodesAlternating current plasma display panelsPhosphorSecondary electrons
A gas-discharge tube has a glass tube as its main body and a trench is provided in the axial direction of the glass tube on one surface (the surface opposed to the discharge surface) among the external surfaces of the glass tube. An address electrode is placed in the trench. The inner surface of the region of the glass tube where sustain electrodes are placed is formed to have a microscopic unevenness. A secondary electron emission film is formed on this inner surface where the unevenness is formed. In addition, a phosphor support member, whose cross section across the axis is in approximately a C-shape and where a phosphor layer has been formed in advance on the inner surface, is placed inside of the glass tube. Stable discharge characteristics is obtained by eliminating dispersion of the position of an electrode, relative to the gas-discharge tube.
Owner:SHINODA PLASMA
Composition for forming electron emission sources, method of manufacturing the same, and electron emission sources and electron emission device manufactured using the method
InactiveUS20080174229A1Inhibition effectImprove electron emission efficiencyDischarge tube luminescnet screensCathode ray tubes/electron beam tubesInsulation layerElectron
An electron emission device includes a base substrate, first electrodes on the base substrate, second electrodes electrically insulated from the first electrodes, a first insulation layer between the first electrodes and the second electrodes, electron emission source holes formed in the first insulation layer and the second electrodes to expose the first electrodes, and electron emission sources in the electron emission source holes, each electron emission source including at least one electron emission material and at least one catalyst metal nano particle.
Owner:SAMSUNG SDI CO LTD
Plasma display panel and flat lamp using boron nitride bamboo shoot
InactiveUS20060055323A1Improve durability and brightnessImprove efficiencySustain/scan electrodesGas discharge vessels/containersFlash-lampBamboo shoot
A plasma display panel (PDP) and a flat lamp using a boron nitride bamboo shoot (BNBS). The PDP includes a front substrate and a rear substrate opposing each other and having a plurality of discharge cells between them, a plurality of address electrodes arranged on the rear substrate in parallel to each other, a plurality of sustain electrodes arranged on the front substrate in parallel to each other and crossing the address electrodes, a dielectric layer arranged on the sustain electrodes, and a plurality of secondary electron emission electrodes arranged on the dielectric layer in parallel to each other and corresponding to the sustain electrodes, respectively. The secondary electron emission electrodes include the BNBS.
Owner:SAMSUNG SDI CO LTD
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