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72results about "Non-electron-emitting shielding screens" patented technology
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Image display device
InactiveUS20020129952A1Improve working efficiencyElectrical conduction unstableTelevision system detailsCathode-ray/electron-beam tube electrical connectionConductive coatingDisplay device
There is provided an image display device including a panel of good work efficiency which can prevent the destruction of its conductive coat due to discharge and can highly efficiently reduce the leakage of unwanted radiation electric fields. The image display device includes a panel grounding electrode which connects a conductive coat and a grounding member together, and the panel grounding electrode uses a conductive adhesive material having in the whole of an adhesive layer, and an insulative protective tape.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Displaying device and lighting device employing organic electroluminescence element
InactiveUS20090236962A1Shape is not particularly restrictedInhibition is effectiveControl electrodesSolid-state devicesDisplay deviceEffect light
Owner:KK TOSHIBA
Negative voltage generator
InactiveUS20080018318A1Stable output negative voltageStable voltageDc-dc conversionDischarge tube/lamp detailsControl signalVoltage reference
A negative voltage generator includes a current mirror unit, a control unit, a resistor, and a switching unit. The current mirror unit receives a first positive voltage from a first positive voltage source and a second positive voltage from a second positive voltage source and determines how to generate a first output current and a second output current according to the difference of a received positive reference voltage and the second positive voltage. The control unit generates a control signal whose value depends on the voltage variation of a negative voltage generated by a negative voltage source, and the on / off state of the switching unit is determined according to the control signal to keep the current passing through the switching unit constant and to generate a first output negative voltage having a constant level.
Owner:ETRON TECH INC
Information storage
InactiveUS20060072427A1Increase speedImprove accuracyRead-only memoriesRecord information storageHigh energyPotential difference
To greatly increase the storage density of a storage apparatus, an electron beam E emitted from a cold cathode 101 is accelerated by an accelerating electrode 102, caused to converge by a convergence electrode 103, deflected by a deflection electrode 104 and applied to a minute region of a storage film 105. The storage film 105 includes, for example, a phase change film 105a. The film is rapidly heated and cooled to change into an amorphous state upon irradiation with an electron beam E with high energy, while being gradually cooled to change into a crystallized state upon irradiation with an electron beam E with approximately intermediate energy, thereby storing data. Upon irradiation with an electron beam E with low energy, the potential difference between a detection electrode 105b and an anode 105c is detected depending on the state, i.e., the amorphous or crystallized state, thereby reading stored data.
Owner:PANASONIC CORP
Organic El Element, Organic El Display Apparatus, Method for Manufacturing organic El Element, and Apparatus for Manufacturing Organic El Element
ActiveUS20080038583A1Good reproducibilityCurrent can be suppressedDischarge tube luminescnet screensElectroluminescent light sourcesElectron injectionHole injection layer
An object of the present invention is to enable suppression of a leak current of an organic EL element while improving a conductivity of the organic EL element and suppressing an operation voltage thereof. An organic EL element is used which comprises at least a luminescent layer, a hole transport layer adjacent to a positive-electrode side of the luminescent layer, and an electron injection transport layer adjacent to a negative-electrode side of the luminescent layer, wherein a hole injection layer is provided between the hole transport layer and the positive electrode, and the conductivity of the hole injection layer continuously changes along a thickness direction of the hole injection layer.
Owner:UDC IRELAND
Electron beam apparatus
InactiveUS20060164001A1Improve reliabilityPrevent creeping dischargeDischarge tube luminescnet screensLamp detailsOptoelectronicsElectron
There provided is an electron beam apparatus of preventing surface creeping discharge from newly arising due to discharge that arises between an anode electrode and an electron-emitting device. In an electron-emitting device including a scan signal device electrode and an information signal device electrode, a portion of the scan signal device electrode is covered by an insulating layer of insulating scan signal wiring from information signal wiring, an additional electrode is connected to the scan signal device electrode at an end portion of the insulating layer and the additional electrode is configured so that energy Ee being lost due to melting of the additional electrode is larger than energy Ea of discharge current flowing in to the electron-emitting device.
Owner:CANON KK
Energy conversion device and production method therefor
InactiveUS20060132014A1High light efficiencyRaise the ratioControl electrodesCigar manufactureInfraredEngineering
An energy converter according to the present invention includes a heat source (radiator 1), which receives externally applied energy and raises its temperature, thereby emitting electromagnetic radiations, and a radiation cut portion (mesh 2) for cutting down infrared radiations, of which the wavelengths are longer than a predetermined wavelength. The mesh 2 is a woven or knitted mesh of metal wires. The openings of the woven or knitted mesh have an aperture size that is smaller than the predetermined wavelength.
Owner:PANASONIC CORP
Gasket and display apparatus having the same
InactiveUS20080078574A1Reducing electromagnetic wave noiseReduce noiseElectrically conductive connectionsScreening gaskets/sealsContact failureEngineering
A gasket is interposed between a circuit board that generates electromagnetic waves and a conductive member, and includes an elastic member separating the circuit board from the conductive member. The gasket is electrically connected with the circuit board by a conductive layer to receive the electromagnetic waves from the circuit board. The conductive layer is covered with an insulating layer except for a contact area where the conductive layer is coupled with the circuit board. The insulating layer blocks the electromagnetic waves received from the circuit board. The electromagnetic wave noise of a display apparatus is reduced even if a contact failure occurs between the gasket and a top chassis.
Owner:SAMSUNG DISPLAY CO LTD
Organic light emitting diode display and pixel driving method thereof
ActiveUS7800556B2Quality improvementDischarge tube luminescnet screensStatic indicating devicesVoltage dropDisplay device
A light emitting diode (OLED) display and pixel driving method thereof are disclosed. Each storage capacitor is discharged via the driving TFT and OLED until conductive current of each OLED is almost zero so as to record a sum of a voltage drop across each OLED under a specific condition and the threshold voltage of the driving TFT. By using the sum of the voltage drop across each OLED and the threshold voltage of the corresponding TFT in the subsequent OLED driving process, the luminance reduction issue caused by TFT threshold-voltage shift and OLED material decay can be solved.
Owner:AU OPTRONICS CORP
Organic light emitting diode display and pixel driving method thereof
ActiveUS20070210994A1Quality improvementDischarge tube luminescnet screensStatic indicating devicesVoltage dropDisplay device
A light emitting diode (OLED) display and pixel driving method thereof are disclosed. Each storage capacitor is discharged via the driving TFT and OLED until conductive current of each OLED is almost zero so as to record a sum of a voltage drop across each OLED under a specific condition and the threshold voltage of the driving TFT. By using the sum of the voltage drop across each OLED and the threshold voltage of the corresponding TFT in the subsequent OLED driving process, the luminance reduction issue caused by TFT threshold-voltage shift and OLED material decay can be solved.
Owner:AU OPTRONICS CORP
Image display apparatus
InactiveUS20060043866A1Reduce magnetic influenceSmall luminance unevennessImage/pattern display tubesImage pickup tubesElectron sourceFluorescence
In an image display apparatus composed of a vacuum container having an electron source composed of multiple electron-emitting devices and a phosphor film that is irradiated with an electron from the electron source to emit light for display, an ion pump for exhausting the vacuum container through a communicating path by virtue of an action of a magnetism forming portion is arranged. A magnetic shielding member is arranged in a space where the ion pump and the electron-emitting devices are in communication with each other, whereby an influence of a magnetic field generated by the magnetism forming portion on the trajectory of an electron emitted from any one of the electron-emitting devices and display luminance unevenness incidental to the influence are removed.
Owner:CANON KK +1
Front panel for plasma display
InactiveUS6078139AEffective shieldingSimple processDischarge tube luminescnet screensCathode ray tubes/electron beam tubesPolymerPlasma display
A front panel for a plasma display comprising a transparent substrate and two or more electroconductive films, each electroconductive film comprising a transparent polymer film with a transparent electroconductive layer on at least one surface thereof, can effectively shield an electromagnetic wave and can be produced in a simple process.
Owner:SUMITOMO CHEM CO LTD
Electron beam apparatus
InactiveUS7427826B2Improve reliabilityPrevent creeping dischargeDischarge tube luminescnet screensLamp detailsOptoelectronicsElectron
Owner:CANON KK
Electromagnetic wave shielding film and method for producing the same
InactiveUS20070181326A1Moderate transparencyMaintain good propertiesElectrolytic coatingsMagnetic/electric field screeningZincSilicon
An electromagnetic wave shielding sheet 1 comprises a transparent substrate 11, and a first anticorrosive layer 23A, a first blackening layer 25A, a metal layer 21, and a second anticorrosive layer 23B that are successively formed on the transparent substrate 11 through an adhesive layer 13. A second blackening layer 25B is formed so that it fully covers the side faces of the first anticorrosive layer 23A, the first blackening layer 25A, the metal layer 21, and the second anticorrosive layer 23B, as well as the front face of the second anticorrosive layer 23B. At least either of the first anticorrosive layer 23A and the second anticorrosive layer 23B contains one or more metals selected from nickel, chromium, and silicon, and also zinc and / or tin when it is initially formed, and the zinc and / or tin is removed from the first anticorrosive layer 23A and / or the second anticorrosive layer 23B in an intermediate steps.
Owner:DAI NIPPON PRINTING CO LTD
Lamp with metal grid radiator for heat dissipation
InactiveUS20050200262A1Increase light intensityRemove heatControl electrodesLighting heating/cooling arrangementsPolymer compositesLight emitting device
A metal grid is placed in the open end of a cup-shaped light bulb as a radiator to dissipate the heat generated from the light emitting device. One or more light emitting devices can be placed on the inner side surface of the metal grid, and the light emitted from the light emitting devices is reflected by the inner surface of the cup and transmitted through the windows in the metal grid. The horizontal plates of the metal grid and the vertical walls of the grid can be insulated from each other to serve as electrodes for the light emitting device. The cup can be back-filled with glass or other transparent polymer composite to prevent dust from entering the cup. Alternatively, a single light emitting device is place near the bottom of the cup
Owner:WU JIAHN CHANG
Video Display and manufacturing method therefor
InactiveUS6380681B1Reduce thicknessSmall thicknessPrinted circuit assemblingElectroluminescent light sourcesDisplay deviceEngineering
Disclosed herein are a video display and a manufacturing method therefor, more particularly, there is provided a video display including a display panel having a plurality of anodes and cathodes arranged orthogonally to each other so as to form grids, a printed wiring board having a drive circuit with wirings for driving the display panel and a plurality of bumps for electrically connecting the wirings of the drive circuit to the anodes and the cathodes, and an adhesive layer for bonding the display panel and the printed wiring board to form a multilevel structure. With this structure, a large-sized video image with no discontinuities can be displayed, and the thickness of the video display can also be reduced.
Owner:SONY CORP
Method of forming spherical electrode surface for high intensity discharge lamp
InactiveUS6705914B2Suppress mutationControl electrodesNon-electron-emitting control electrodesOptoelectronicsHigh intensity
A high pressure discharge lamp which achieves a long life of at least 3000 hours and in which variations in lamp characteristics are suppressed is disclosed. In the high pressure discharge lamp of the present invention, during manufacturing of an electrode, a covering member 123 having a coil shape and being made of refractory metal is applied on a discharge side end of an electrode rod 122 made of refractory metal so as to cover a circumference of the electrode rod 122 in a vicinity of the discharge side end. The discharge side end 124 on which the covering member 123 is applied is fused into a semi-sphere by intermittently heat fusing the discharge side end according, for instance, to arc discharge or laser irradiation.
Owner:PANASONIC CORP
Filter for plasma display and fabricating method thereof
InactiveUS20100164358A1Reduce thicknessAvoid crackingMagnetic/electric field screeningOptical filtersManufacturing cost reductionElectromagnetic electron wave
A filter for a plasma display includes an electromagnetic interference shielding mesh formed on a substrate to shield electromagnetic waves and a hard coating layer made of inorganic material formed on the electromagnetic interference shielding mesh. The filter is fabricated so as to provide a reduced thickness of a plasma display, to prevent cracks from being generated on surfaces of the mesh and to reduce manufacturing costs.
Owner:SAMSUNG SDI CO LTD
Electromagnetic shielding filter
InactiveUS7737370B2Maintain good propertiesHigh transparencyMagnetic/electric field screeningDischarge tube/lamp detailsElectromagnetic shieldingAlloy
Owner:HITACHI CABLE
Plasma display apparatus
InactiveUS20070120485A1Reduce capacitanceExcellent luminous propertiesSustain/scan electrodesDischarge tube luminescnet screensEngineeringLight filter
Provided is a plasma display apparatus. The plasma display apparatus includes a scan electrode and a sustain electrode, a boundary barrier rib, and a filter. The scan and sustain electrodes are formed in parallel with each other on a front substrate. The boundary barrier rib is formed on a rear substrate facing the front substrate, and partitions a discharge cell into two up / down neighbor cells. The filter is positioned in front of a panel. The filter includes an external light shield sheet including a first base part and a first pattern part, and an ElectroMagnetic Interference (EMI) shield sheet. A thickness of the external light shield sheet is 1.01 to 2.25 times of a height of the first pattern part. The sustain electrode is commonly formed only one for the two up / down neighbor cells.
Owner:LG ELECTRONICS INC
Electrode for a high pressure discharge lamp, high pressure discharge lamp, and method of manufacturing therefor
InactiveUS20010030498A1Suppress mutationControl electrodesElectroluminescent light sourcesOptoelectronicsHigh pressure
A high pressure discharge lamp which achieves a long life of at least 3000 hours and in which variations in lamp characteristics are suppressed is disclosed. In the high pressure discharge lamp of the present invention, during manufacturing of an electrode, a covering member 123 having a coil shape and being made of refractory metal is applied on a discharge side end of an electrode rod 122 made of refractory metal so as to cover a circumference of the electrode rod 122 in a vicinity of the discharge side end. The discharge side end 124 on which the covering member 123 is applied is fused into a semi-sphere by intermittently heat fusing the discharge side end according, for instance, to arc discharge or laser irradiation.
Owner:PANASONIC CORP
EMI shielding film of a flat panel display device including a mesh frame of two-layered structure
InactiveUS7119858B2Simple manufacturing processReduce manufacturing costCathode-ray/electron-beam tube vessels/containersMagnetic/electric field screeningInfraredElectromagnetic interference
A front filter being attached to a front surface of a flat panel display device includes a NIR (near infrared ray) blocking film for blocking the emission of near infrared rays to outside; an EMI (electromagnetic interference) shielding film for absorbing electromagnetic waves and for preventing the electromagnetic waves from being emitted to outside; a glass formed on a front surface of the EMI shielding film; and an antireflection coating for preventing incident rays from outside from reflecting back to the outside, in which the EMI shielding film includes a mesh unit formed of conductive meshes that are intersected with each other; and a mesh frame for surrounding the mesh unit to support the mesh unit and to define an effective display area on a screen.
Owner:LG ELECTRONICS INC
Gasket and display apparatus having the same
InactiveUS7880095B2Reduce noiseAvoid emissionsElectrically conductive connectionsScreening gaskets/sealsContact failureContact region
A gasket is interposed between a circuit board that generates electromagnetic waves and a conductive member, and includes an elastic member separating the circuit board from the conductive member. The gasket is electrically connected with the circuit board by a conductive layer to receive the electromagnetic waves from the circuit board. The conductive layer is covered with an insulating layer except for a contact area where the conductive layer is coupled with the circuit board. The insulating layer blocks the electromagnetic waves received from the circuit board. The electromagnetic wave noise of a display apparatus is reduced even if a contact failure occurs between the gasket and a top chassis.
Owner:SAMSUNG DISPLAY CO LTD
Field electron emission source
ActiveUS8350459B2Reduced stabilityWide applicationTube/lamp screens manufactureControl electrodesField electron emissionHigh electron
Owner:TSINGHUA UNIV +1
Cathode
ActiveUS7864925B2High electron emissionExtended service lifeControl electrodesX-ray tube electrodesField electron emissionHigh electron
Owner:SIEMENS HEALTHCARE GMBH
Electromagnetic shielding filter
InactiveUS20080047747A1Maintain good propertiesHigh transparencyMagnetic/electric field screeningDischarge tube/lamp detailsElectromagnetic shieldingMaterials science
An electromagnetic shielding filter has two transparent boards and a conductive mesh with plural wires, where the conductive mesh is sandwiched between the two transparent boards. The plural wires are formed of a Cu—Sn—In alloy or a Cu—Ag alloy.
Owner:HITACHI CABLE
High voltage shielding arrangement
ActiveUS20110084592A1Reduced space requirementsIncreased mutual distanceMagnetic/electric field screeningDischarge tube/lamp detailsEngineeringHigh pressure
The invention relates to a high voltage shielding arrangement comprising a first metal part and a second metal part positioned in close vicinity to said first metal part. Said second metal part included in said arrangement to be set at an electrical potential that is lower than the electric potential of the first metal part. Said second metal part having comprising one or more edges and an insulator. The second metal part is at least partially encapsulated by the insulator facing the first metal part.
Owner:ASML NETHERLANDS BV
Electromagnetic wave shielding material and display using the same
InactiveUS20070188066A1Reduce material costsReduce the number of stepsIncadescent screens/filtersMagnetic/electric field screeningElectrical conductorDisplay device
An electromagnetic wave shielding material 1 comprises a light-shielding electrical conductor layer 11 having, on its observer-side external surface, a blackening layer 12. The electrical conductor layer 11 comprises a mesh portion 2 that has a large number of openings adjoining one another and faces the center portion 5b of the image-luminescent part 5a of a display device 5, and a frame portion 3 that surrounds the mesh portion 2 and faces the outer edge portion 5c of the image-luminescent part 5a of the display device 5. When trimming the screen of a display D with a black-colored light-shielding layer, since the electromagnetic wave shielding material 1 is used, it is not necessary to perform9 an additional printing step or the like, so that the total number of steps and material cost are not increased. Moreover, such electromagnetic wave shielding material does not cause non-uniformity in light-shielding properties compared with a light-shielding layer formed by printing. The frame portion 3 includes a light-transmitting pattern part 9 having patterned openings 4a.
Owner:DAI NIPPON PRINTING CO LTD
Information storage apparatus storing and reading information by irradiating a storage medium with electron beam
InactiveUS7471542B2Inhibition of attachmentReduced stabilityRead-only memoriesRecord information storageHigh energyPotential difference
To greatly increase the storage density of a storage apparatus, an electron beam E emitted from a cold cathode 101 is accelerated by an accelerating electrode 102, caused to converge by a convergence electrode 103, deflected by a deflection electrode 104 and applied to a minute region of a storage film 105. The storage film 105 includes, for example, a phase change film 105a. The film is rapidly heated and cooled to change into an amorphous state upon irradiation with an electron beam E with high energy, while being gradually cooled to change into a crystallized state upon irradiation with an electron beam E with approximately intermediate energy, thereby storing data. Upon irradiation with an electron beam E with low energy, the potential difference between a detection electrode 105b and an anode 105c is detected depending on the state, i.e., the amorphous or crystallized state, thereby reading stored data.
Owner:PANASONIC CORP
Electron emission device with decreased electrode resistance and fabrication method and electron emission display
InactiveUS7586251B2Lower electrode resistanceControl electrodesThermionic cathodesFluorescenceDisplay device
An electron emission device includes: a substrate; first and second electrodes insulated from each other and having a predetermined shape on the substrate, at least one of the first and second electrodes being formed with a fine mesh pattern; and an electron emission region formed on the substrate and connected to one of the first and second electrodes. Furthermore, an electron emission display includes: first and second substrate arranged opposite to each other; first and second electrodes insulated from each other and having a predetermined shape on the first substrate, at least one of the first and second electrodes being formed with a fine mesh pattern; an electron emission region formed on the first substrate and connected to one of the first and second electrodes; and an image displaying portion including an anode electrode and a fluorescent layer arranged on the second substrate.
Owner:SAMSUNG SDI CO LTD
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