摘要:
This invention provides an electron source manufacturing apparatus which can be easily downsized and operated. The electron source manufacturing apparatus includes a support member for supporting a substrate (10) having a conductor (11), a vessel (12) which has a gas inlet port (15) and a gas exhaust port (16) and covers a partial region of the surface of the substrate (10); a gas inlet unit (24) connected to the gas inlet port (15) to introduce gas into the vessel, an exhaust unit (26) connected to the gas exhaust port to evacuate the interior of the vessel, and a voltage application unit (32) for applying a voltage to the conductor.
摘要:
A method for manufacturing an electron emission element comprising, between its electrodes, a conductive film having an electron emission section. The method comprising the steps of forming a gap in the conductive film located between the electrodes, and applying a voltage between the electrodes in an atmosphere that has an aromatic compound with a polarity or a polar group and in which the partial pressure ratio of water to the aromatic compound is 100 or less.
摘要:
In an electron-emitting device including, between electrodes, an electroconductive film having an electron emitting region, the electroconductive film has a film formed in the electron emitting region and made primarily of a material having a higher melting point than that of a material of the electroconductive film. Alternatively, the electroconductive film has a film formed in the electron emitting region and made primarily of a material having a higher temperature at which the material develops a vapor pressure of 1.3.times.10.sup.-3 Pa, than that of a material of the electroconductive film. A manufacturing method for an electron-emitting device includes a step of forming a film made primarily of a metal in the electron emitting region of the electroconductive film. The electron-emitting device has stable characteristics and improved efficiency of electron emission. An image-forming apparatus comprising the electron-emitting devices has high luminance and excellent stability in operation.
摘要:
A recording medium comprises an electroconductive oxide film held between a substrate and an insulating oxide film. A recording method locally applies a voltage onto the medium to form a portion different in electric resistance or oxygen content in the electroconductive oxide film. A record-readout method comprises the steps of applying a voltage to the electroconductive oxide film having information recorded thereon and detecting the intensity of current flowing through a recorded portion to read out the recorded information.
摘要:
A compact information processing apparatus does not require any coarse mobile mechanism. In the information processing apparatus, a probe can be brought close to a medium to read information from the medium and to write it onto the medium. The information processing apparatus includes a device for applying a voltage between the probe 31 and the medium 31, and a device for generating a progressive wave in the in-plane direction of the medium to displace the medium.
摘要:
A displacement element including a substrate having electrodes and a cantilever provided on the substrate, wherein the cantilever is formed from a semiconductor material and has at least two electrostatic driving electrodes formed by diffusing an impurity into a semiconductor material.
摘要:
The present invention relates to a superconductive electromagnetic wave mixer comprising a local-oscillator section and a receiving section, said receiving section serving as a section at which an electromagnetic wave from the local-oscillator section and an externally originating electromagnetic wave are combined. The local-oscillator section and said receiving section are each formed by at least one Josephson junction employing at least one oxide superconductor.
摘要:
The video image display apparatus of flat tube type comprisinga phosphor screen, an electron beam source having a predetermined number (15) of line cathodes for in turn emitting said predetermined number of horizontal rows of electron beams, each row having a second predetermined number (320) of rod shaped electron beams,horizontal deflection means for horizontally deflection of the electron beams,vertical deflection means for vertical deflections of the electron beams of the horizontal rows,switch pair means of said predetermined number, each switch pair means comprises each-other oppositely working first switching means and second switching means, in each switch pair means the first switching means switches cathode heating current and the second switching means switches cathode bias voltage to bias a selected cathode in turn to enable electron emission, the switch pair means being controlled by switch control signal in turn impressed thereto.
摘要:
A flat type color display apparatus includes a phosphor screen and 15 horizontal line cathodes activated in turn from the top one to the bottom one. An electron beam control means and a beam deflection means are provided. Each horizontal line cathode emits a horizontal sheet-shaped electron beam which is vertically deflected in 16 steps, and is divided into 320 rod-shaped electron beams by 320 vertically oblong slits and individually controlled of its intensity by 320 beam-control electrodes. The rod-shaped electron beams are horizontally deflected each selectively impinging R, G and B vertical phosphor stripes in turn. In the operation circuit, R, G and B video signals are sampled and held in R, G and B parts of 320 sample-hold circuits, and stored at one time in 320 memories for respective colors, and time sharingly applied to the respective beam-control electrodes. A color video image is thereby displayed of 240 lines each having 320 picture elements.
摘要:
A flat type display apparatus includes an electron beam source for emitting a row of a large number of electron beams, and a phosphor screen having a phosphor layer which emits light in response to impingement by the electron beams. An electron beam convergence means is provided and an electrostatic deflection means for deflecting the electron beams prior to impingement on the phosphor screen. An electron beam controlling means has a number of electron beam controlling electrodes for individually controlling the current of the electron beams to control light emissions from the phosphor screen. A pulse width modulation circuit feeds electron control signals of a constant voltage and pulse-width modulated by video signal information to be displayed. Light emission control without changing converging conditions of electrostatic lenses is thus obtained so that a good linearity between the video signals and the electron beams is obtained.