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WO/1997/008729A1 |
Color display device comprising a shadow mask and means for correcting landing-errors. The correction means comprise first and second correction deflection devices which are arranged one behind the other in the direction of the electron ...
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WO/1997/008731A1 |
A field emission display device includes a baseplate having a set of field-induced electron emitters for each pixel in a display. Each set includes a plurality of emitters each carried by a supporting substrate and disposed within a resp...
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WO/1997/008730A1 |
A display system comprises a display screen including a matrix of display elements and a permanent magnet having an array of channels formed therein. Each channel corresponds to a different display element. Each display element comprises...
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WO/1997/007524A1 |
Display panels comprise at least one suspended fibrous cathode containing an electron field emitter. The fibrous cathode is supported by a substrate (10) containing two sets of parallel rows of crests and valleys. The first set of parall...
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WO/1997/007523A1 |
The centring cup of an in-line electron gun of a colour cathode ray tube is provided with four slits, positioned substantially mirror-symmetrical with respect to the in-line plane and with respect to a plane perpendicular to the in-line ...
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WO/1997/006285A1 |
A raw material for a magnetic shield for use in a color picture tube, having excellent internal magnetic shield characteristics and excellent handling strength, which is produced by cold-rolling a hot-rolled low-carbon strip containing n...
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WO/1997/006552A1 |
A triple-layered shadow mask (50) for a CRT which comprises a first thin metal plate (51) formed in a shape corresponding to the phosphor elements on the faceplate (18) of the panel. The first metal plate (51) has multiple electron beam ...
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WO/1997/006551A1 |
Disclosed are a shadow mask (50), a cathode ray tube having the above shadow mask and a method for manufacturing a screen using the shadow mask. The shadow mask has a first and a second thin metal plate (51, 53). A first and a second vol...
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WO/1997/006549A1 |
A field electron emission material comprises an electrically conductive substrate (13, 14) and, disposed thereon, electrically conductive particles (11) embedded in, formed in, or coated by a layer of inorganic electrically insulating ma...
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WO/1997/005643A1 |
A color cathode-ray tube (10) has an evacuated envelope (11) with an electron gun (26) therein for generating at least one electron beam (28). The envelope further includes a faceplate panel (12) having a luminescent screen (22) with pho...
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WO/1997/005641A1 |
The present invention relates to a color cathode-ray tube (10) having an evacutated envelope (11) with an electron gun (26) therein for generating at least one electron beam (28). The envelope (11) further includes a faceplate panel (12)...
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WO/1997/005642A1 |
A color cathode-ray tube (10) has an evacuated envelope (11) with an electron gun (26) therein for generating at least one electron beam (28). The envelope further includes a faceplate panel (12) having a luminescent screen (22) with pho...
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WO/1997/004482A1 |
A method for forming resistors for regulating current in a field emission display (10) comprises integrating a high resistance resistor (32) into circuitry for the field emission display. The resistor (32) is in electrical communication ...
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WO/1997/003454A1 |
A cathode structure comprises at an end portion (1) and electron-emitting material (4) and a heating element (5) of wire (7), said cathode structure having a plurality of primary helical turns (8). These primary turns are used to form a ...
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WO/1997/002587A1 |
A display device with a DAF-gun (Dynamic Astigmatism and Focusing) in which the first focusing electrode (G3a) has at the side facing the pre-focusing part of the electron gun three elongated apertures (36, 37, 38). Hereby in operation i...
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WO/1997/001861A2 |
An X-ray image intensifier tube (1) comprises an entrance section (2) for converting high-energy X-rays of from 100 keV to 120 keV into an electron beam (10). The entrance section (2) comprises a conversion layer (3) with a filter layer ...
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WO/1996/042102A1 |
A deflection unit having a hollow synthetic material coil support within which a line deflection coil system is arranged, which line deflection coils are connected in an electric circuit to a line balance coil arrangement comprising a cy...
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WO/1996/041327A1 |
An electroluminescent (EL) display is formed on a ceramic substrate having a front ceramic surface and a back ceramic surface. The ceramic substrate includes a metal core that provides structural support, electrical ground, and heat diss...
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WO/1996/039582A1 |
An ion pump permits the continuous evacuation of a small-envelope vacuum chamber while drawing a relatively small amount of power (micro watts). In a preferred embodiment, the present ion pump occupies a space enclosed by a first surface...
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WO/1996/038854A1 |
A lateral field-emission device (10) has a lateral emitter (100) substantially parallel to a substrate (20) and has a simplified anode structure (70). The anode's top surface is precisely spaced apart from the plane of the lateral emitte...
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WO/1996/036064A1 |
A color cathode-ray tube in which the brightness is improved while using the conventional electron gun and emitter layer as such, which is characterized in that both or either one of panel glass (3) and safety glass (1) which are used at...
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WO/1996/036165A1 |
A method according to the invention reduces spot-growth towards the edges of a display screen (10) of a display tube (1). The number of electrons per second in a modulated electron beam is determined by a picture signal (Pi). A corrected...
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WO/1996/036061A1 |
A lateral-emitter field-emission device includes a thin-film emitter cathode (50) of thickness less than several hundred angstrom and has an edge or tip (110) with small radius of curvature. In the display cell structure, a cathodolumine...
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WO/1996/035224A1 |
Colour cathode ray tube (1) device having an electron gun (6) of the in-line type for generating three electron beams (7, 8, 9), a display screen (10) and deflection means (11) for scanning the electron beams over the display screen, whe...
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WO/1996/035223A1 |
Dry-powdered, silica-coated phosphor particles for use in manufacturing a CRT screen are dispersively coated with silica particles (SC) on the surface thereof to enhance the flow characteristics of the phosphor particles (P) according to...
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WO/1996/035222A1 |
The method develops a uniform density of the screen structure material on a faceplate (18) for a CRT. According to the present invention the method comprises the steps of first-coating the faceplate with a volatilizable conductive layer ...
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WO/1996/031896A1 |
A cathode ray tube comprising an electron gun for generating at least one electron beam and a deflection unit for deflecting the electron beam(s) across a display screen. The deflection unit comprises a first system inside the coil holde...
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WO/1996/030919A1 |
A uniformly luminous EL sheet diaphragm and a lighted switch which is of a thin structure, provided with the EL sheet diaphragm, and used in input operating sections of various kinds of electronic devices are disclosed. A diffusion EL sh...
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WO/1996/030926A1 |
The invention provides spacers for separating and supporting a faceplate structure and a backplate structure in a flat panel display, and methods for fabricating these spacers. Each spacer is typically made of ceramic, such as alumina, c...
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WO/1996/026529A1 |
A display screen (3) of a cathode ray tube (1), or of another display device, which display screen is provided with phosphors, is coated with a spectrally selective, light-absorbing coating (8) comprising silicon oxide and at least two d...
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WO/1996/025753A1 |
An improved field emission cathode and methods for fabricating such a cathode are disclosed. In the methods of the invention, the field emission cathode is made from at least one body containing a first substance. The method steps includ...
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WO/1996/025756A1 |
An in-line electron gun comprises main lens electrodes. Said main lens electrodes have a common aperture and, at a distance from the common aperture, three in-line apertures in a plate-shaped part. The outer apertures extend, viewed in a...
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WO/1996/024152A1 |
A gated filament structure for a field emission display includes a plurality of filaments. Included is a substrate, an insulating layer positioned adjacent to the substrate, and a metal gate layer position adjacent to the insulating laye...
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WO/1996/023316A1 |
Raster demodulation apparatus for a raster-scanned cathode ray tube display comprises control means (400) for varying the shape of at least one scanned electron beam spot (661-663) in a direction perpendicular to scan lines of the raster...
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WO/1996/023315A1 |
A cathode ray tube display comprises a cathode ray tube (10) having a screen (11) connected to a neck portion (12) via a bell portion (13). Cancellation coil means (160, 160') are arranged to receive a signal based on a scanning signal f...
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WO/1996/021939A1 |
A colour display tube comprises an in-line electron gun for generating three co-planar electron beams having a mean lens comprising a first and second lens electrode for producing a focusing lens field for focusing the electron beams. At...
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WO/1996/021237A1 |
Disclosed are film-type deflection members (LF and RF) in a color picture tube, which comprises a plurality of films each containing at least an electrical conductive line patterned so as to produce magnetic field in a given pattern. The...
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WO/1996/020418A1 |
Method for manufacturing a glass substrate with reduced glare wherein a suspension comprising sub-micron transparent oxide particles and a binder is coated on the substrate to form a film, whereafter the film is dried in such a manner th...
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WO/1996/019819A1 |
A magnetic correction circuit is provided with a magnetic sensor (1), a control circuit (2) which generates a signal for magnetic correction, and a coil (3) for magnetic correction. The sensor (1) is provided with a pair of amorphous mag...
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WO/1996/019075A1 |
An electromagnetic emission shield (1) for reducing electromagnetic radiation from a video display device (5) comprising an oversize conductive face plate (2) significantly larger in area than a front surface of said video display device.
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WO/1996/018204A1 |
A support structure (3) is provided that enables use of high voltage phosphors in field-emission flat panel displays, to maintain vacuum gap (4) between the cathode (2) and anode (1), and to prevent distortion of the transparent view scr...
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WO/1996/017369A1 |
A process for the metallization of a phosphor screen which process comprises the steps of: i) applying to a phosphor screen a coating of an aqueous dispersion of a poly(hydroxyalkanoate) and allowing the screen to dry; ii) optionally hea...
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WO/1996/017370A1 |
A process for the metallization of a phosphor screen which process comprises the steps of: i) applying to a phosphor screen a coating composition comprising a poly(acrylate) or poly(methacrylate) dissolved in an acrylate or methacrylate ...
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WO/1996/017371A1 |
A process for the metallization of a phosphor screen comprises the steps of applying to a phosphor screen a preformed film of a polymeric material which decomposes and/or volatilizes at a temperature of below 450 �C, the film either ha...
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WO/1996/016426A1 |
A particle-beam column comprising a needle-type ions source (1) such as a liquid metal ion source, one or more round lenses (2), and a plurality of interleaved quadrupole lenses (14, 16). Also an ion-beam column comprising a liquid alloy...
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WO/1996/016429A2 |
A field emission display device has a faceplate and a backplate. The faceplate includes a faceplate interior side with an active region made of a plurality of phosphor pixel elements; and the backplate has a backplate interior side with ...
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WO/1996/016428A1 |
A picture display device provided with a display screen, means for transmitting light in a spectral range, and a selectively transmissive coating is described. The local transmission of the coating in said spectral range is dependent on ...
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WO1996015543A1 |
The invention relates to a deflection ring of sintered MgZn-ferrite material. In accordance with the invention, this deflection ring is characterized in that the majority of the grains of the sintered material have a monodomain structure...
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WO/1996/015542A1 |
A method for assembling two parallel plates (1, 2) forming the bottom and the surface respectively of a flat display, comprising a step of degassing the plates (1, 2) and vacuum debugging step. According to the method, a first plate (2) ...
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WO/1996/014652A1 |
A multilayer antireflective coating (32) is applied to the outer surface of a video display panel (14) such as a CRT (10) or a flat panel display in the form of successive thin layers each having a different light refractive index, where...
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