Abstract: A method of manufacturing an electron-emitting device includes a first step of forming a conductive film on an insulating layer having an upper surface and a side surface connected to the upper surface via a corner portion so as to extend from the side surface to the upper surface and cover at least a part of the corner portion, and a second step of etching the conductive film. At the first step, the conductive film is formed so that film density of a portion on the side surface of the insulating layer becomes lower than film density of a portion on the corner portion of the insulating layer.

Abstract: Provided is an electron-emitting device using a carbon fiber as an electronic member. A carbon fiber through which a cathode electrode and a control electrode are short-circuited is removed to obtain an electron-emitting device having a uniform electron emission characteristic. A first electrode including a plurality of fibers each containing carbon and a second electrode are prepared. Then, a voltage is applied between the first electrode and the second electrode with a state where a potential of the first electrode becomes higher than a potential of the second electrode to remove a carbon fiber through which the first electrode and the second electrode are short-circuited.

Abstract: A microscale vacuum electronic device (10) provides for a mechanical modulation of cathode (12) position with respect to the anode position, the anode electrically biased with respect to the cathode and held in an evacuated housing with the cathode, allowing improved high-frequency modulation of an electron beam (24) useful for vacuum electronic devices such as klystrons, klystrodes, and high frequency triodes.

Abstract: A flat panel display is provided. The flat panel display includes a cathode panel in which a plurality of electron emission areas are provided on a support, and an anode panel in which a plurality of phosphor areas and an anode electrode are provided on a substrate. The cathode panel and the anode panel are joined together at their periphery by a joining member. The anode electrode includes an anode electrode central section covering the phosphor areas, and an anode electrode peripheral section surrounding the anode electrode central section and extending from the anode electrode central section and being provided in contact with the substrate. The average thickness of the anode electrode peripheral section is smaller than the average thickness of the anode electrode central section.

Abstract: There are provided an electron emitter of which deviation in electron emission characteristic is small, a method of manufacturing the electron emitter, and an electro-optical device and an electronic apparatus having the electron emitter. The method of manufacturing an electron emitter, in which electrons are emitted from an electron emission portion formed in a conductive film, comprises forming the conductive film in a pattern on a substrate by the use of a droplet jetting method; selectively removing a part of the conductive film; and forming the electron emission portion in the conductive film.

Abstract: Described is a method for preparation of carbon nanotubes (CNTs) with medium to low-site density growth for use in field emission devices (FEDs). The method involves the deposition of a non-catalytic metal layer (interlayer), preferably a metallic conductor, onto the surface of a substrate, prior to the deposition of a catalytic layer (overlayer). The interlayer allows for only partial (sparse) growth of CNTs on the substrate, and helps to prevent resist layer “lift-off” when photolithographic processing is employed.

Abstract: An electron emission device is provided which has sufficient on/off characteristics and is capable of efficiently emitting electrons with a low voltage. An electron emission device includes a substrate, a cathode electrode, a gate electrode, which are arranged on the substrate, an insulation layer covering the surface of the cathode electrode, and a dipole layer formed by terminating the surface of the insulation layer with hydrogen.

Abstract: To improve anti-corrosion property in a wet-type electric dust collector while ensuring discharge function. A coating layer of thermoplastic resin is provided to an entire surface of a needle-type rigid discharge electrode including a support pipe and a discharge needle of an electric dust collector for removing a corrosive mist in an exhaust gas. Then, the coating layer on a tip surface of the discharge needle is coarsely polished and removed to expose a coarse discharge edge surface.

Abstract: Methods are provided for fabricating field emitters by using laser-induced re-crystallization. A substrate is first provided on which a silicon-containing layer is formed. A plurality of extrusive tips are thereafter formed to be extruded from the surface of the silicon-containing layer by using laser-induced re-crystallization. The methods of the laser-induced re-crystallization include a step of subjecting the overall or partial silicon-containing layer to an energy source, either unpatterned or patterned.

Abstract: A method for fabricating a carbon nanotube-based field emission display includes providing a substrate, forming a cathode array on the substrate, forming a catalyst layer on the cathode array of the substrate by self-assembly of catalyst powders onto the cathode array, growing carbon nanotubes from the cathode array of the substrate, forming an insulating layer on an area of the substrate bearing no cathode array, forming a grid array on the insulating layer of the substrate; and packaging the substrate with a phosphor screen to form the field emission display.

Abstract: An electron emission device is disclosed. The electron emission device includes a resistance layer for electrically connecting a line electrode and isolate electrodes included in the cathode electrode. The cathode electrode can maintain a uniform voltage due to the resistance layer. A protection layer is located on the resistance layer. The protection layer prevents conductive elements contained in the resistance layer from diffusing over the protection layer. The protection layer also prevents the resistance layer from being oxidized.

Abstract: A field emission electron source for emitting electrons under applied electric field includes a cold cathode having molecules of an aromatic compound vapor-deposited thereon at a pointed end of said cold cathode.

Abstract: A method of manufacturing a light emitting device includes steps of setting a threshold of luminous intensity, measuring luminous intensity of a measured light emitting device, calculating an offset value between the threshold of luminous intensity and the measured luminous intensity, performing a destruct structure capable of decreasing energy of light beam on an optical element of the measured light emitting device, wherein the energy decreasing efficiency of the destruct structure is direct proportion to the offset value. While the light beam is radiated from a light emitting chip of the measured light emitting device and to the destruct structure, few light energy is absorbed or scattered by the destruct structure to decrease the luminous intensity. Therefore, the light emitting device with the destruct structure has a consistent luminous intensity due to the energy decreasing efficiency of the destruct structure is direct proportion to the offset luminous intensity.

Abstract: A method of manufacturing a light emitting unit includes steps of previously setting a threshold of luminous intensity, measuring luminous intensity of a measured light emitting unit, calculating an offset value between the threshold of luminous intensity and the measured luminous intensity, performing absorption of light by a light absorbing portion direct proportion to the offset value, and positioning the designed light absorbing portion onto an optical element of the measured light emitting unit. While light beam is radiated from the measured light emitting unit and passed through the light absorbing portion, few light energy is absorbed by the light absorbing portion to decrease the luminous intensity. Therefore, the light emitting unit with the light absorbing portion has a consistent luminous intensity due to the light absorbing ratio of the light absorbing portion is direct proportion to the offset luminous intensity.

Abstract: A method for producing a carbon nanotube array element includes the steps of: providing a first substrate coated with a conductive paste layer; forming an array of thin film blocks of catalyst on a second substrate; forming each of the thin film blocks into islands of catalyst; forming carbon nanotube bundles on the islands of catalyst, each of the carbon nanotube bundles including a plurality of carbon nanotubes and having a free end portion; pressing the second substrate toward the first substrate such that the free end portions insert into the conductive paste layer; solidifying the conductive paste layer; and removing the second substrate together with the islands of catalyst from the carbon nanotube bundles, thereby forming an open end for each of the carbon nanotubes. A carbon nanotube array element for a field emission cathode device is also disclosed.

Abstract: A Field Emission Device (FED) and its method of manufacture includes: forming a substrate; forming a cathode having a cathode aperture on an upper surface of the substrate; forming a material layer having a first through hole with a smaller diameter than that of the cathode aperture on an upper surface of the cathode; forming a first insulator having a first cavity on an upper surface of the material layer; forming a gate electrode having a second through hole on an upper surface of the first insulator; and forming an emitter in a central portion of the cathode aperture.

Abstract: A cathode substrate according to the present invention comprises a cathode electrode layer (12), insulator layer (14) and gate electrode layer (15) formed sequentially on a substrate to be processed (11). The insulator layer includes a hole (14a) formed therethrough. A gate aperture (16) is formed through the gate electrode layer. An emitter (E) is then provided at the bottom of the hole (14a). In this case, the gate aperture comprises a plurality of openings (16a), the total area of which is smaller than the area of top opening of the hole in the insulator layer. The openings are arranged densely at a position opposite to the emitter and just above the hole of the insulator layer.

Abstract: Electron emissive compositions comprising a barium neodymium oxide are described. These compositions may be applied to electrodes such that electron emission is facilitated. Methods of manufacturing emissive electrodes comprising a barium neodymium oxide are also described. Various discharge lamps employing such electrodes are described as well.

Abstract: An apparatus for generating a planar light source and method for driving the same is provided. The apparatus for generating a planar light source comprises an emitting layer disposed not only on a cathode electrode, but also on a gate electrode as well. Accordingly, by applying an AC voltage to the apparatus, a duty cycle of the AC voltage can reach 100% so as to enhance the brightness to the extent that the apparatus is applied a DC voltage.

Abstract: An LED chip encapsulation process includes the steps of (a) forming a fluorescent member by injection molding to encapsulate an LED chip; (b) hardening the fluorescent member; (c) forming a transparent dome to embed and encapsulate the LED chip and the fluorescent member; and (d) securing the dome and the substrate together to finish a packaging of the LED chip. Shape of the fluorescent member disposed on the LED chip can be controlled precisely, thereby increasing quality and color uniformity of the produced LED chip. Alternatively, the LED chip is a remote LED chip and step (a) is replaced by forming a plastic member to encapsulate the LED chip and forming a fluorescent member on the top of the plastic member by injection molding.

Abstract: 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.

Abstract: The invention relates to a method for protecting the interior of at least one cavity (4) having a portion of interest (5) and opening onto a face of a microstructured element (1), consisting of depositing, on said face, a nonconformal layer (6) of a protective material, in which said nonconformal layer closes off the cavity without covering the portion of interest. The invention also relates to a method for producing a device comprising such a microstructured element.

Abstract: A field emission display (FED) with an integrated triode structure is provided. The FED can be manufactured without using a complex packaging process and have a significantly reduced well diameter and a significantly reduced cathode-to-anode distance. In the FED, front and rear panels form a single body using an anode insulating layer as an intermediate. A method for manufacturing the FED using anodic oxidation is also provided.

Abstract: The present invention relates to a field emission device comprising an anode and a cathode, wherein said cathode includes carbon nanotubes which have been treated with an ion beam. The ion beam may be any ions, including gallium, hydrogen, helium, argon, carbon, oxygen, and xenon ions. The present invention also relates to a field emission cathode comprising carbon nanotubes, wherein the nanotubes have been treated with an ion beam. A method for treating the carbon nanotubes and for creating a field emission cathode is also disclosed. A field emission display device containing carbon nanotube which have been treated with an ion beam is further disclosed.

Abstract: In a method of manufacturing an electron emission device, cathode electrodes are first formed on a substrate. An insulating layer is formed on the entire surface of the substrate such that the insulating layer covers the cathode electrodes. The insulating layer is wet-etched two or more times such that openings each with an aspect ratio of more than 1 are formed in the insulating layer. Gate electrodes are formed on the insulating layer. Electron emission regions are formed on the cathode electrodes within the openings of the insulating layer. The respective etchings are conducted using separate mask patterns with the same-sized openings such that under-cuts are made.

Abstract: A method for producing a durable electron-emitting device having a uniform electron emission characteristic, an electron source, and an image-forming apparatus having a uniform display characteristic for a long period are provided. The method for producing an electron-emitting device according to the present invention includes the steps of: disposing a cathode electrode on a surface of a substrate; providing an electrode opposite the cathode electrode; disposing plural pieces of fiber containing carbon as a main component on the cathode electrode; and applying potential higher than potential applied to the cathode electrode under depressurized condition to an electrode opposite the cathode electrode.

Abstract: The invention is to provide a producing method for an electron emitting device of field emission type, having sufficient on/off characteristics and capable of efficient electron emission at a low voltage. There is provided a producing method for an electron emitting device including steps of preparing a plurality of electroconductive particles each covered with an insulation material having a thickness of 10 nm or less at least on a part of a surface of the particle, and forming a dipole layer on a surface of the insulation material covering each of the plurality of electroconductive particles.

Abstract: A method for manufacturing an electron emitter, the method includes discharging a droplet of a function liquid containing a material for forming the conductive film onto a discharge surface of the substrate by a droplet discharge device to adhere a liquid-state object to at least part of an area in which the conductive film is to be formed, drying the liquid-state to form the conductive film, and forming an electron emission section in the conductive film by applying an current between the pair of element electrodes, wherein when accompanied by the drying to form the conductive film, the discharging forms the liquid-state object in a shape having a constricted part for forming a latent image section that has a relatively thin film thickness in a portion for forming the electron emitter.

Abstract: A method for manufacturing a precursor to an electron-emitting device includes the steps of preparing an electron-emitting member, and alternately exposing the electron-emitting member to an oxygen-containing gas and a metal-containing gas.

Abstract: A preferred method for making a carbon nanotube-based field emission cathode device in accordance with the invention includes the following steps: preparing a solution having a solvent and a predetermined quantity of carbon nanotubes dispersed therein; providing a base with an electrode (101) formed thereon; forming a layer of conductive grease (102) on the base; distributing the solution on the layer of conductive grease, and forming a carbon nanotube layer (103) at least attached on the surface of the conductive grease after the solvent evaporates; and scratching the layer of conductive grease, in order to raise first ends of at least some of the carbon nanotubes from the conductive grease and thereby attain an effective carbon nanotube field emission cathode.

Abstract: The present invention provides a method of making white light source by violet-LED. A phosphor powder which at least contains four elements (Zn, S, Se, O) is used with violet-LED to make white light source of LED. The phosphor powder can be excited by violet light with wavelength from 380 to 410 nm and emits yellow light with continuous wavelength from 470 nm to 670 nm. Putting suitable amount of the phosphor powder on the surface of violet-LED chip, sealing it to be a LED, after providing a current to the LED, a white light with high color rendering index is obtained.

Abstract: A method of fabricating a composite field emission source is provided. A first stage of film-forming process is performed by using RF magnetron sputtering, so as to form a nano structure film on a substrate, in which the nano structure film is a petal-like structure composed of a plurality of nano graphite walls. Afterward, a second stage of film-forming process is performed for increasing carbon accumulation amount on the nano structure film. Therefore, the composite field emission source with high strength and nano coral-like structures can be obtained, whereby improving the effect and life of electric field emission.

Abstract: A method of manufacturing an LED lamp is disclosed. The method includes admixing an uncured curable liquid resin and a phosphor, dispensing the uncured admixture on an LED chip, centrifuging the chip and the admixture to disperse the phosphor particles in the uncured resin, and curing the resin while the phosphor particles remain distributed.

Abstract: Provided is a white LED including a reflector cup; an LED chip mounted on the bottom surface of the reflector cup; transparent resin surrounding the LED chip; a phosphor layer formed on the transparent resin; and a light transmitting layer that is inserted into the surface of the phosphor layer so as to form an embossing pattern on the surface, the light transmitting layer transmitting light, incident from the phosphor layer, in the upward direction.

Abstract: A method of batch fabrication using established photolithographic techniques allowing nanoparticles or nanodevices to be fabricated and mounted into a macroscopic device in a repeatable, reliable manner suitable for large-scale mass production. Nanoparticles can be grown on macroscopic “modules” which can be easily manipulated and shaped to fit standard mounts in various devices.

Abstract: To provide a method of manufacturing a field emission display having an improved electron emission effect by means of laser irradiation and accordingly mitigating a luminance fluctuation among pixels, and other such techniques. Provided is a method of manufacturing a field emission display which includes a cathode substrate and a fluorescent screen glass opposed to the cathode substrate and emits light when an electron emitted from a carbon nanotube printed layer (7) containing a carbon nanotube of the cathode electrode enters a fluorescent material of the fluorescent screen glass, the method including a laser beam irradiation step of irradiating a surface of the carbon nanotube printed layer (7) with a laser beam having its energy density to be spatially modulated to expose and raise the carbon nanotube of the carbon nanotube printed layer so as to form a laser irradiation part (B) and a non-laser irradiation part (C).

Abstract: Disclosed herein are a method of producing microstructure and a method of producing mold, the methods permitting production of much smaller pores than before in an atmosphere where impurities are negligible and also permitting production of microstructures having a smaller size and a higher crystallinity than before with the help of the pores. The method of producing microstructure comprises a step of making pores (4) in a substrate (1) to become a mold (5) by irradiation with a focused energy beam (3) and a step of growing a microstructure (8) in the thus made pores (4). The method of producing a mold includes a step of making pores (4) by irradiating a substrate (1) to become a mold (5) with a focused energy beam (3).

Abstract: A microchannel plate (MCP) is formed from a boule. The MCP includes a plate having opposing end surfaces formed of acid resistant glass and acid etchable glass, and multiple channels extending longitudinally between the opposing end surfaces. The multiple channels are formed by circumferential walls of the acid resistant glass that surround the acid etchable glass. A respective circumferential wall forms a curved surface extending longitudinally between the opposing end surfaces. The curved surface is configured to reduce light from passing from one end surface to the other end surface. The acid resistant glass has a lower softening temperature than the acid etchable glass. As a result, the acid etchable glass may be subjected to a bending process, without reducing the diameter size of the microchannels that are formed after the bending process.

Abstract: A light emitting device and a fabricating method thereof are described. The light emitting device includes a substrate, a light emitting chip, a tubular structure, and a fluorescent conversion layer. The tubular structure is formed on a surface of the substrate. The light emitting chip is disposed on the surface of the substrate and is surrounded by the tubular structure. The fluorescent conversion layer is disposed in the tubular structure and covers the light emitting chip. A ratio of a maximal vertical thickness and a maximal horizontal thickness of the fluorescent conversion layer at the light emitting chip is between 0.1 and 10. A distance for the light ray to pass through the fluorescent conversion layer is controlled by using the tubular structure, so as to solve a problem of the conventional art that fluorescent powder coating package technique results in non-uniform color temperature of the emitted light.

Abstract: A field emission display device and a method of fabricating the same are provided. The field emission display device may include a substrate, a transparent cathode layer, an insulation layer, a gate electrode, a resistance layer, and carbon nanotubes. The transparent cathode layer is deposited on the substrate. The insulation layer is formed on the cathode layer and has a well exposing the cathode layer. The gate electrode is formed on the insulation layer and has an opening corresponding to the well. The resistance layer is formed to surround the surface of the gate electrode and the inner walls of the opening and the well so as to block ultraviolet rays. The carbon nanotube field emitting source is positioned on the exposed cathode layer.

Abstract: This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.

Abstract: In a method of manufacturing a field emitter, a patterned conductive layer is formed on a substrate, an upper surface of the conductive layer is coated with a mixture of a field emission material and metal powder, the mixture is thermally treated to improve adhesion of the mixture to the conductive layer, and a field emission material and a metal deposited on a portion of the substrate other than the conductive layer are removed. Accordingly, the lifespan and field emission characteristic of the field emitter are greatly improved, and a large area field emitter having excellent characteristics that cannot be realized in the conventional art is fabricated.

Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge are provided. When the focusing electrode is an aperture-type electrode, the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.

Abstract: A fabrication method for carbon fiber which can prevent abnormal growth from electrode wiring metal, and can be formed a carbon nano-tube with high-density and uniform, by a simple and cheap method and the fabrication method includes process steps: forming a cathode electrode on a substrate; forming a first insulating film on the cathode electrode; forming a gate electrode on the first insulating film; forming a hole which reaches to the cathode electrode surface into the first insulating film; forming a catalyst crystallite nucleus on a bottom of the hole; oxidized forming a second insulating film on the gate electrode surface; and forming a carbon nano-tube on the catalyst crystallite nucleus; a carbon fiber electron source of high-output current density; and FED device which has high-intensity and large capacity with high current density, are provided.

Abstract: A method for manufacturing a display panel module is provided by which production costs are reduced. A method is provided for manufacturing a display panel module that includes a display panel, a functional film and a drive circuit board. The method includes attaching the drive circuit board to the display panel, conducting a lighting test of the display panel using the drive circuit board to confirm that the display panel is an acceptable product, and bonding the functional film to a front face of the display panel. In the bonding process, an adhesive layer having a thickness equal to or more than 200 microns is interposed between the front face of the display panel and the functional film.

Abstract: A white light LED is disclosed. The white light LED includes a dual-wavelength chip and an optical thin film. The dual-wavelength chip generates a first wavelength light and a second wavelength light. The optical thin film is disposed above the dual-wavelength chip. The optical thin film can partially be a quantum well thin film. Therefore, the quantum well thin film can be excited by the first wavelength light and/or second wavelength light to generate a third wavelength light. The optical thin film further comprises a plurality of windows to let the first and second wavelength lights pass through. By predetermining a ratio of the quantum well thin film area and the window area that belong to the optical thin film, a lumen ratio of the first, the second, and the third wavelength lights can be adjusted to realize white lights of different color temperatures.

Abstract: A light source includes a substrate, a plurality of blocks, and a plurality of light emitting diodes (LEDs). The blocks are disposed on the substrate and spaced from each other. Each LED includes a first electrode, a second electrode, a chip, and a bonding wire. The first and second electrodes are arranged on the substrate between every two blocks, and are electrically connected each other via the chip and the bonding wire. A related method for manufacturing the light source is also provided.

Abstract: Methods of growing carbon nanotubes and manufacturing a field emission device using the carbon nanotubes are provided. The method of growing carbon nanotubes includes the steps of preparing a substrate, forming a catalyst metal layer on the substrate to promote the growing of the carbon nanotubes, forming an amorphous carbon layer on the catalyst metal layer where the amorphous carbon layer partially covers the catalyst metal layer, and growing the carbon nanotubes from a surface of the catalyst metal layer. The carbon nanotubes are grown in a portion of the surface of the catalyst metal layer that is not covered by the amorphous carbon layer. In the method of growing carbon nanotubes, the carbon nanotubes are grow at a low temperature. A density of carbon nanotubes can be controlled to improve field emission characteristics of an emitter of a field emission device.

Abstract: A method for manufacturing a carbon nanotube field emission display includes the steps of: (a) dispersing a plurality of carbon nanotubes on an array of cathode electrodes formed on an insulative substrate; (b) forming an array of insulation beams on the array of cathode electrodes, the insulation beams being perpendicular to a lengthways direction of the cathode electrodes; (c) forming a plurality of gate electrodes on tops of the insulation beams; (d) making the carbon nanotubes located near opposite sides of each gate electrode stand vertically on the cathode electrodes; and (e) packing and sealing a phosphor screen and side walls. The gate electrodes have the dual functions of driving electron emission and focusing emitted electrons. Thereby the carbon nanotube field emission display has high resolution and good display quality.

Abstract: A process for fabricating a field emitter electrode includes: impregnating a cathode and anode in an electrolyte containing carbon nanotubes dispersed therein and applying a predetermined voltage to the cathode and anode so as to deposit carbon nanotubes on a substrate provided on the anode; recovering the substrate and applying a conductive polymer onto the surface of the substrate having carbon nanotubes deposited thereon; and heat treating the conductive polymer having carbon nanotubes deposited thereon, so as to completely cure it.