Abstract: A touch panel includes a first electrode plate and a second electrode plate. The first electrode plate includes a first substrate, and a first conductive layer disposed on a lower surface of the first substrate. The second electrode plate includes a second substrate, and a second conductive layer disposed on an upper surface of the second substrate. The first conductive layer and the second conductive layer both include a carbon nanotube layer. Each carbon nanotube layer includes a plurality of carbon nanotubes. The first substrate and the second substrate are flexible. Further, the present invention also relates to a display device. The display device includes a displaying unit and a touch panel.

Abstract: A touch panel includes a first electrode plate and a second electrode plate connected to the first electrode plated. The first electrode plate includes a first substrate, and a first conductive layer disposed on the first substrate. The second electrode includes a second substrate, and a second conductive layer disposed on the second substrate. The first or the second conductive layer includes at least one carbon nanotube composite layer.

Abstract: A touch control device includes a transparent substrate, a display element, and a touch panel. The display element is disposed on a surface of the transparent substrate and includes a displaying surface. The displaying surface is located away from the transparent substrate. The touch panel is located on opposite side of the display element from the transparent substrate. The touch panel includes a first electrode plate and a second electrode plate. The first electrode plate includes a first substrate and a first conductive layer disposed on a lower surface of the first substrate. The second electrode plate is separated from the first electrode plate and includes a second flexible substrate and a second conductive layer disposed on an upper surface of the second substrate. The first conductive layer and the second conductive layer both include a carbon nanotube layer.

Abstract: A touch panel includes a first electrode plate and a second electrode plate. The first electrode plate includes a first substrate, a first conductive layer disposed on a lower surface of the first substrate, and two first-electrodes disposed on opposite ends of the first conductive layer. The second electrode plate separates from the first electrode plate and includes a second substrate, a second conductive layer disposed on an upper surface of the second substrate, and two second-electrodes disposed on opposite ends of the second conductive layer. At least one of the first-electrodes and the second-electrodes includes a carbon nanotube layer. Further, the present invention also relates to a display device. The display device includes a displaying unit and a touch panel.

Abstract: A touch panel includes a first electrode plate and a second electrode plate separated from the first electrode plate. The first electrode plate includes a first substrate and a first conductive layer located on a lower surface of the first substrate. The second electrode plate includes a second substrate and a second conductive layer located on an upper surface of the second substrate. At least one of the first conductive layer and the second conductive layer includes at least two stacked carbon nanotube layers, each carbon nanotube layer comprising a plurality of carbon nanotubes aligned in a single direction, and the carbon nanotubes in the two adjacent carbon nanotube layers arranged along different directions. A display device adopting the touch panel includes the touch panel and a display element.

Abstract: A stable cold field electron emitter is produced by forming a coating on an emitter base material. The coating protects the emitter from the adsorption of residual gases and from the impact of ions, so that the cold field emitter exhibits short term and long term stability at relatively high pressures and reasonable angular electron emission.

Abstract: Provided is a field emission device. The field emission device includes an insulated cathode substrate facing an anode substrate, a plurality of cathodes arranged on the cathode substrate and separated from each other, and an emitter formed on each of the cathodes. In order to prevent accumulation of charges on an exposed area of the cathode substrate between the cathodes due to electrons discharged from the emitter, the distance between the cathodes is equal to or smaller than a first threshold value, and the distance from the emitter to the end of the cathode is equal to or greater than a second threshold value. Accordingly, in the field emission device in which a plurality of cathodes are separated from each other on the same plane, it is possible to prevent abnormal field emission and arc generation due to accumulated charges between the cathodes, thereby performing stable operation.

Abstract: A wireless communications system can include a charged particle generator configured to generate plural energized particles and a charge transformer configured to receive the plural energized particles that include charged particles from the charged particle generator and to output energized particles that include particles having substantially zero charge. The charged particle generator can be configured to direct the plural energized particles through the charge transformer to propagate through free space until received by a broadband signal receiver that can demodulate a data signal to complete the data communication.

Abstract: Surface field electron emitters using a carbon nanotube yarn and a method of fabricating the same are disclosed. To fabricate the carbon nanotube yarn for use in fabrication of simple and efficient carbon nanotube field electron emitters, the method performs densification of the carbon nanotube yarn during rotation of a plying unit and heat treatment of the carbon nanotube yarn that has passed through the plying unit without using organic or inorganic binders or polymer pastes. The method fabricates the carbon nanotube yarn with excellent homogeneity and reproducibility through a simple process. The carbon nanotube yarn-based surface field electron emitters can be applied to various light emitting devices.

Abstract: A method for producing an electron-emitting device includes forming a first conductive film on a side surface of an insulation layer including the side surface and a top surface connected to the side surface; forming a second conductive film from the top surface to the side surface and on the first conductive film; and etching the second electrically conductive film.

Abstract: The present invention relates to a field emission display and a manufacturing method of the same having selective positioning of electron field emitters. More specifically, the present invention provides a field emission display and a manufacturing method of the same having selective positioning of electron field emitters which can prevent a cross-talk that is a mutual interference phenomenon between pixels and improve uniformity of pixels based on uniform electron emission by deciding positions of carbon nano-tubes which are sources of electron emission and growing carbon nano-tubes before the structure of electrodes is formed, and forming spacers directly on electrodes such that the spacers divide carbon nano-tubes formed uniformly and selectively into pixel units.

Abstract: A field emission device includes: a first substrate on which a gate electrode line, a cathode line, and an electron emission source are formed; a second substrate disposed to face the first substrate, and on which an anode and a phosphor layer are formed; and a side frame surrounding an area between the first substrate and the second substrate, and forming a sealed internal space, wherein the first substrate and the second substrate respectively comprise a first protrusion part and a second protrusion part that protrude outside the side frame in the same direction, wherein a rear terminal part for applying a voltage to the gate electrode line and the cathode line is formed on the first protrusion part, wherein an anode terminal for applying a voltage to the anode is formed on the second protrusion part.

Abstract: A transmission electron microscope (TEM) micro-grid includes a base and a plurality of electron transmission portions. The base includes a plurality of first carbon nanotubes and the first carbon nanotubes have a first density. Each electron transmission portions includes a hole defined in the base and a plurality of second carbon nanotubes located in the hole. The second carbon nanotubes have a second density. The second density is less than the first density. The base and the electron transmission portions form the TEM micro-grid for observation of a sample using a TEM microscope.

Abstract: Described is a micro-fabricated charged particle emission device including a substrate and a plurality of charged particle emission sites formed in the substrate. A path extends between each emission site and a source of liquid metal. Each path is coated with a wetting layer of non-oxidizing metal for wetting the liquid metal. Exemplary non-oxidizing metals that may be used to provide the wetting layer include gold and platinum. The wetting layer is sufficiently thin such that some liquid metal is able to flow to each emission site despite any chemical interaction between the liquid metal and the non-oxidizing metal of the wetting layer.

Abstract: A structure includes a substrate and a metallized carbon nano-structure extending from a portion of the substrate. In a method of making a metallized carbon nanostructure, at least one carbon structure formed on a substrate is placed in a furnace. A metallic vapor is applied to the carbon nanostructure at a preselected temperature for a preselected period of time so that a metallized nanostructure forms about the carbon nanostructure.

Abstract: A large-area and high-luminance deep ultraviolet light source device is provided under circumstances where the scales of existing mercury lamps used as ultraviolet light sources cannot be reduced and light-emitting diodes of 365 nm or less do not reach the practical level. The deep ultraviolet light source device comprises at least an anode substrate having an ultraviolet phosphor thin film doped with rare-earth metal ions such as gadolinium (Gd) ions and containing with aluminum nitride as the host material, a cathode substrate having a field electron emission material thin film, a spacer for holding the anode substrate and the cathode substrate opposite to each other and maintaining the space between the substrates in a vacuum atmosphere, and a voltage circuit for applying an electric field to the space between the anode substrate and the cathode substrate.

Abstract: Provided are a transistor and a method of manufacturing the transistor, and more particularly, a vacuum channel transistor emitting thermal cathode electrons and a method of manufacturing the vacuum channel transistor. The vacuum channel transistor includes: a motherboard; a micro heater member having a thin-film structure formed on the motherboard; a cathode member having a thin-film structure spaced apart from a center part of the micro heater member by a first interval and formed on the micro heater member; a gate member formed on both outer walls of upper parts of the cathode member; and an anode member spaced apart from the cathode member by a second interval through spacers disposed on the gate member, wherein a vacuum electron passing area is interposed between the cathode member and the anode member by the second interval.

Abstract: A pixel tube for field emission display includes a sealed container, three anodes, three phosphor layers, and a cathode. The sealed container has a light permeable portion. The three anodes are located in the sealed container. Each of the three phosphor layers is located corresponding to one of the three anodes. The cathode is spaced from the three anodes and includes three cathode emitters. Each of the three cathode emitters is located corresponding to one of the three phosphor layers and includes a carbon nanotube pipe. One end of the carbon nanotube pipe has a plurality of carbon nanotube peaks.

Abstract: Spindt-type field-emission cathodes for use in electric propulsion (EP) systems having self-assembling nanostructures that can repeatedly regenerate damaged cathode emitter nanotips. A nanotip is created by applying a negative potential near the surface of a liquefied base metal to create a Taylor cone converging to a nanotip, and solidifying the Taylor cone for use as a field-emission cathode. When the nanotip of the Taylor cone becomes sufficiently blunted or damaged to affect its utility, the base metal is re-liquefied by application of a heat source, a negative potential is reapplied to the surface of the base metal to recreate the Taylor cone, and a new nanotip is generated by solidifying the base metal.

Abstract: A field emission device in which a protecting vapor is present in an evacuated space between a field emission cathode assembly and an anode. The protecting vapor may be one or more hydrogen-containing gases such as a gas containing M—H bonds where M may be C, Si, B, Al or P.

Abstract: A phosphorus-doped diamond film, which contains phosphorus at a concentration of 1015 cm?3 or more, has a resistivity of 107 ?cm or less, and allows the voltage for initiation of electron emission to be 30V or less. A method for producing the phosphorus-doped diamond film by growing a diamond film on a diamond substrate by chemical vapor deposition method in an atmosphere containing methane and hydrogen gases and phosphorus with the use of tertiary butyl phosphorus as a source of addition of phosphorus. A diamond electron source having an electrode and a substrate which contains the phosphorous-doped diamond film and emitting electron beams from the phosphorous-doped diamond film when voltage is applied between the electrode and the substrate.

Abstract: A method of forming an electron emitter structure for use in a field emission display, or as a field emission backlight for an LCD display is provided. The electron emitter structure is formed by depositing mask elements onto an laminar Al substrate, and etching the Al substrate chemically through gaps between the mask elements, such that a spikes are formed on the substrate. These spikes are then covered with an electron emitter material. The spikes can be formed with a desired pitch/height ratio.

Abstract: An electron source producing an electron beam which is highly reliable and stable even when it is externally oscillated. The electron source comprises a cathode (1) having an electron emitting section which is so connected to be interposed between top ends of two filaments (3) which are respectively connected to two conductive pins (4) provided on an insulator member (5), an end of the cathode (1) which differs from the electron emitting section being fixed to the insulator member (5), wherein the two filaments (3) are being twofold symmetry with a center on a center axis of the cathode (1), and preferably, the end of the cathode (1) which differs from the electron emitting section is fixed to the insulator member (5) via a metallic member (6) brazed to the insulator member, and more preferably, a curved portion is provided to the filaments.

Abstract: An electron emission film having a pattern of diamond in X-ray diffraction and formed of a plurality of diamond fine grains having a grain diameter of 5 nm to 10 nm is formed on a substrate. The electron emission film can restrict the field intensity to a low level when it causes an emission current to flow, and has a uniform electron emission characteristic.

Abstract: An electron source has an electron emitter with an electron emission cathode, a high voltage unit provided for power supply of the electron emission cathode, and a low voltage unit provided to control the high voltage unit. Data are transmitted non-electrically (in particular optically) between the high voltage unit and the low voltage unit.

Abstract: A field emission electron source includes a CNT needle and a conductive base. The CNT needle has an end portion and a broken end portion; the end portion is contacted with and electrically connected to a surface of the conductive base. The CNTs at the broken end portion form a taper-shape structure, wherein one CNT protrudes and is higher than the adjacent CNTs.

Abstract: The field emission cathode device includes an insulating substrate with a number of cathodes mounted thereon. A number of field emission units are mounted on the cathodes. A dielectric layer is disposed on the insulating substrate and defines a number of voids corresponding to the field emission units. The dielectric layer has an upper and lower section and disposed on the insulating substrate. The dielectric layer defining a plurality of voids corresponding to the field emission units. A number of grids disposed between the upper and lower sections, and wherein each grid are secured by the upper and lower sections of the dielectric layer.

Abstract: Apparatus and method for modifying an object with electrons are provided, by which the object can be uniformly and efficiently modified with the electrons under a pressure substantially equal to atmospheric pressure even when having a relatively wide surface area to be treated. This method uses a cold-cathode electron emitter having the capability of emitting electrons from a planar electron emitting portion according to tunnel effect, and preferably comprising a pair of electrodes, and a strong field drift layer including nanocrystalline silicon disposed between the electrodes. The object is exposed to electrons emitted from the planar electron emitting portion by applying a voltage between the electrodes.

Abstract: An object is to provide an electron emitting cathode achieving high luminance, low energy dispersion, and long life. It is therefore an object to provide a diamond electron emitting cathode graspable on a sufficiently stable basis, sharpened at the tip, and improved in electric field intensity. A diamond electron emitting cathode 110 according to the present invention is partitioned into at least three regions, i.e., a front end region 203 intended for electron emission at a tip of columnar shape, a rear end region 201 intended for grasping opposite in the longitudinal direction, and a thinned intermediate region 202, a cross-sectional area of the rear end region is not less than 0.2 mm2, the tip of the front end region is sharpened, and a maximum cross-sectional area of the thinned intermediate region is not more than 0.1 mm2.

Abstract: A method for preparation of carbon nanotubes (CNTs) bundles for use in field emission devices (FEDs) includes forming a plurality of carbon nanotubes on a substrate, contacting the carbon nanotubes with a polymer composition comprising a polymer and a solvent, and removing at least a portion of the solvent so as to form a solid composition from the carbon nanotubes and the polymer to form a carbon nanotube bundle having a base with a periphery, and an elevated central region where, along the periphery of the base, the carbon nanotubes slope toward the central region.

Abstract: It is possible to provide an electron emission cathode, an electron emission source having a high-luminance and narrow energy width by using diamond and an electronic device using them. The diamond electron discharge cathode has a monocrystal diamond at least at a part of it. The diamond electron emission cathode has a columnar shape including a sharpened section and a heating section. The sharpened section has an electron emission section. The electron emission section and the heating section are formed by diamond semiconductor, which is formed by a p-type semiconductor containing 2×1015 cm?3 of p-type impurities or above. The electron emission section has the semiconductor. A metal layer is formed on the surface of the electron emission cathode. The metal layer exists at least at a part of the heating section. The distance from the electron emission section to the position nearest to the end of the metal layer is 500 ?m.

Abstract: An electronic device is presented for performing at least one logic function. The device comprises an electron emission based electrode arrangement associated with an electron extractor. The electrode arrangement comprises at least one basic unit including a photocathode, an anode, and one or more gates arranged aside a cavity defined between the photocathode and the anode. Said one or more gates are connectable to a voltage supply unit to be operated by one or more input voltages signals corresponding to one or more logical values, respectively. Said anode is operable as a floating electrode from which an electrical output of the device indicative of a resulted logic function is read. The anode is electrically connected to a photocathode of another cathode-anode unit of the same device, or is connected to an electrode of another electronic device.

Abstract: An electron gun, an electron source for an electron gun, an extractor for an electron gun, and a respective method for producing the electron gun, the electron source and the extractor are disclosed. Embodiments provide an electron source utilizing a carbon nanotube (CNT) bonded to a substrate for increased stability, reliability, and durability. An extractor with an aperture in a conductive material is used to extract electrons from the electron source, where the aperture may substantially align with the CNT of the electron source when the extractor and electron source are mated to form the electron gun. The electron source and extractor may have alignment features for aligning the electron source and the extractor, thereby bringing the aperture and CNT into substantial alignment when assembled. The alignment features may provide and maintain this alignment during operation to improve the field emission characteristics and overall system stability of the electron gun.

Abstract: A carbon film of the present invention has an elongated needle shape whose radius decreases toward a tip. The shape is, preferably, a shape in which a field concentration coefficient ? in the Fowler-Nordheim equation is expressed by h/r where r denotes the radius in an arbitrary position and h denotes height from the arbitrary position to the tip.

Abstract: A color pixel element for field emission display includes a sealed container having a light permeable portion, at least two anodes, a cathode, at least two phosphor layers formed on the end surfaces of the anodes, and at least two CNT strings electrically connected to and in contact with the cathode with the emission portions of the CNT strings suspending. The phosphor layers are opposite to the light permeable portion, and one emission portion is corresponding to one phosphor layer. In each CNT string, some of CNT bundles are taller than and project over the adjacent CNT bundles, and each of projecting CNT bundles functions as an electron emitter. The anodes, the cathode, the phosphor layers and the CNT strings are enclosed in the sealed container. The luminance of the color pixel element is enhanced at a relatively low voltage.

Abstract: Provided is an electron emitting device which can achieve high electron emission efficiency even in the case where excitation energy is low. The device includes a carbon nanotube layer which is formed on an SiC substrate and is made up of plural carbon nanotubes vertically oriented with respect to a surface of the SiC substrate; an MgO layer which is formed on and touches the carbon nanotube layer; an ohmic electrode which is connected to the carbon nanotube layer; an electrode which is facing the MgO layer with an air-gap between the MgO layer and the electrode; and a voltage source which applies a voltage between the electrode and the ohmic electrode.

Abstract: Provided is an electron source which outputs a stable electron beam even when vibration is applied from the external to an apparatus which uses the electron source. The electron source is provided with an insulator (5); two conductive terminals (4) arranged at an interval on the insulator (5); a long filament (3) stretched between the conductive terminals (4); and a needle-like cathode (1) having an electron emitting section attached to the filament (3). The vertical cross-section shape of the filament (3) in the axis direction has a long direction and a short direction, and the maximum length in the long direction is 1.5 times or more but not more than 5 times the maximum length in the short direction.

Abstract: The present invention provides a novel method for the manufacture of an enhanced cold cathode electron emission source allowing a measure of area to be processed at one time. The method includes the steps of: dissolving first and second polymers in solvent to obtain a polymer solution, and applying the polymer solution onto a second conductive layer before forming a hole; precipitating and immobilizing the first polymer in a particulate in the second polymer by evaporating the solvent; removing the first polymer particulate with a developer to form an etching hole in the second polymer; and performing etching process via the etching hole so as to form the hole in the second conductive layer. In one embodiment, the second polymer has greater solubility than the first polymer in the solvent, and the first polymer has greater solubility than the second polymer in the developer.

Abstract: Particles, which may include nanoparticles, are mixed with carbon nanotubes and deposited on a substrate to form a cold cathode. The particles enhance the field emission characteristics of the carbon nanotubes. An additional activation step may be performed on the deposited carbon nanotube mixture to further enhance the emission of electrons.

Abstract: A pixel element for field emission display includes a sealed container having a light permeable portion, an anode, a cathode, a phosphor layer formed on an end surface of the anode, and a CNT string electrically connected to and in contact with the cathode with an emission portion of the CNT string suspending. The phosphor layer is opposite to the light permeable portion, and the emission portion is corresponding to the phosphor layer. Some of CNT bundles in the CNT string are taller than and project over the adjacent CNT bundles, and each of projecting CNT bundles functions as an electron emitter. The anode, the cathode, the phosphor layer and the CNT string are enclosed in the sealed container. The luminance of the pixel element is enhanced at a relatively low voltage.

Abstract: An electron emission film having a pattern of diamond in X-ray diffraction and formed of a plurality of diamond fine grains having a grain diameter of 5 nm to 10 nm is formed on a substrate. The electron emission film can restrict the field intensity to a low level when it causes an emission current to flow, and has a uniform electron emission characteristic.

Abstract: An electron emission material includes an electron emission material main body, a base metal layer disposed on the electron emission material main body, and a thermal electron emission layer disposed on the base metal layer.

Abstract: 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.

Abstract: Provided is an electron source which provides a stable electron beam even when vibration is applied from external to a device which uses the electron source. The electron source is provided with a needlelike chip (1) having an electron emitting section at one end; a cup-like component (6) bonded to the other end of the needlelike chip (1); and a filament (3) for heating the cup-like component (6). The filament (3) is arranged in a gap inside the cup-like component (6), in a noncontact state to the cup-like component (6).

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 method for operating a charged particle beam emitting device and, in particular, an electron beam emitting device including a cold field emitter is provided. The method includes the steps of placing the cold field emitter in a vacuum of a given pressure, the emitter exhibiting a high initial emission current I0 and a lower stable mean emission current IS under a given electric extraction field; applying the given electric extraction field to the emitter for emitting electrons from the emitter surface; performing a cleaning process by applying at least one heating pulse to the cold field emitter for heating the emitter surface, whereby the cleaning process is performed before the emission current of the cold field emitter has declined to the lower stable mean emission value IS; and repeating the cleaning process to keep the emission current of the emitter continuously above the substantially stable emission value IS.

Abstract: A system and method for developing a solid state stripper device is described that more effectively strips off negative carbon ions to produce positively charged carbon ions. In one embodiment the solid state stripping device is a self-supporting aggregate of nanotubes or Buckminster-Fullerenes. Such devices provide, among other things, carbon stripper foil for use in a tandem generator.

Abstract: An electron emission device includes first and second substrates facing each other with a predetermined distance, cathode electrodes formed on the first substrate, electron emission regions formed on the cathode electrodes, and gate electrodes placed over the cathode electrodes while interposing an insulating layer. The gate electrodes have opening portions exposing the electron emission regions on the first substrate. The electron emission region has a height compensation portion formed on the cathode electrode such that the width of the height compensation portion is reduced in a direction toward the second substrate. An electron emission layer covers the surface of the height compensation portion and contacts the cathode electrode such that the electron emission layer is electrically connected to the cathode electrode.

Abstract: An object of the present invention is to reduce power consumption in a plasma display panel (PDP) by reducing the discharge firing voltage, while suppressing the occurrence of discharge variability when the PDP is driven, as well as ensuring the wall-charge holding performance of a protective film surface. To achieve this, a front panel of a PDP of the present invention has a catalyst layer dispersed on a surface of display electrodes formed in stripes on one side of a glass substrate, and needle crystals composed of graphite formed to stand upright on the catalyst layer. The needle crystals form a phase-separated structure with the materials of a dielectric film and a protective film.

Abstract: An electric field emission device having a triode structure is fabricated by using an anodic oxidation process. The device includes a supporting substrate, a bottom electrode layer to be used as an cathode electrode of the device, a gate insulating layer having a plurality of first sub-micro holes, a gate electrode layer having a plurality of second sub-micro holes connecting to the first sub-micro holes, an anode insulating layer having a plurality of third sub-micro holes connecting to the second sub-micro holes, a top electrode layer for hermetically sealing the device, the top electrode layer being used as an anode of the device and a plurality of emitters formed in the first sub-micro holes. The emitters are formed so as to come into as close contact as possible to the electrodes of the device, which results in decreasing a driving voltage.