1510 results about "Cathode Ray Tube Display" patented technology

Provided are: a silicon nitride powder for siliconitride phosphors with higher luminance, which can be used for a fluorescent display tube (VFD), a field emission display (FED), a plasma display panel (PDP), a cathode ray tube (CRT), a light emitting diode (LED), and the like; a CaAlSiN₃ phosphor, an Sr₂Si₅N₈ phosphor, an (Sr, Ca)AlSiN₃ phosphor and an La₃Si₆N₁₁ phosphor, each using the silicon nitride powder; and methods for producing the phosphors. The present invention relates to a silicon nitride powder for siliconitride phosphors, which is characterized by being a crystalline silicon nitride powder that is used as a starting material for producing a siliconitride phosphor that includes silicon element and nitrogen element but does not contain oxygen element as a constitutent element, and which is characterized by having an oxygen content of 0.2% by weight to 0.9% by weight; a CaAlSiN₃ phosphor, an Sr₂Si₅N₈ phosphor, an (Sr, Ca)AlSiN₃ phosphor and an La₃Si₆N₁₁ phosphor, each using the silicon nitride powder; and methods for producing the phosphors.

Disclosed are polythiophene-based conductive polymer liquid compositions of high conductivity and transparency. The compositions comprise 16-32 weight % of an aqueous polythiophene-based conductive polymer solution, 52-80 weight % of an alcohol solvent, 1-12 weight % of an amide solvent, 0.01-0.4 weight % of a sulfonic acid group-containing monomer dopant, and optionally 2-8 weight % of an alkoxysilane. The compositions can be applied to transparent substrates to form coatings which have a surface resistance of 1 kOMEGA/square or less and a transmittance of 92% or higher. With the excellent conductivity and transparency, the compositions are useful as electromagnetic wave-shielding materials, finding numerous applications in cathode ray tube screens (TV sets and computer monitors) as well as CPP films, polyethyleneterephthalate films, polycarbonate panels, and acryl panels.

A work center monitoring system includes an output device, such as a cathode ray tube (CRT), liquid crystal display (LCD), or other display device and a display controller. The controller formats work center information to be displayed on the output device as single-valued and multi-valued display segments. Each segment displays information related to work center activities, which may be categorized as various skills. The displays may be provided to a work center supervisor to assist in the management of a work center, such as a contact and fulfillment center. Current and historical values of the parameters may be displayed, simultaneously, or in sequence. The values of the displayed parameters may be different types, such as any of a variety of numerical representations which might represent the number of calls in one or more queues, or the oldest call in a queue, for example. The values may be indicative of the elapsed time for servicing the oldest call in a queue, or other indications of time. The information being displayed may derive from a number of sources such as a work center management database, directly from a call management system, or from some other source. In accordance with the principles of the invention, the displayed parameter representations include indicia of “permissible” parameter values. One such indicator might be an “I-beam” glyph that indicates the highest and lowest acceptable values for a particular parameter. The area immediately surrounding such an “I-beam” glyph may include further indicia, such as graduated zones of acceptability.

Disclosed are a glass for a cathode ray tube which glass can be decreased in thickness and weight, a glass panel for a cathode ray tube, a cathode ray tube and methods for producing them. Further disclosed are a strengthened glass having a high bending strength and a thick stress-strain layer, a glass for a display which glass is made of the strengthened glass, particularly, a glass panel for a cathode ray tube and a cathode ray tube. The present invention provides (1) a glass for a cathode ray tube which glass is made of a chemically strengthened glass and has a Young's modulus of at least 90 GPa, (2) a glass for a cathode ray tube, which is a chemically strengthened glass from a matrix glass which comprises SiO2, Al2O3, an alkali metal oxide, SrO and ZrO2 and has an Al2O3 content of more than 4% by weight but not more than 20% by weight and an SrO content of 5 to 20% by weight, and (3) a strengthened glass formed by chemical strengthening of a physically strengthened matrix glass at a temperature lower than the strain temperature of the matrix glass.

The present invention aims at compatibility between the improvement in luminance or suppression of deterioration in luminance and the improvement in contrast with respect to a display apparatus and a color cathode-ray tube. Each of the display apparatus and the color cathode-ray tube according to the present invention includes: a fluorescent screen having a color-filter layer and a phosphor layer, which is formed inside a panel glass having light transmissivity of 55% to 20% when a wavelength is 546 nm and a plate thickness is 20 mm and in which at least the phosphor layer is formed by the transfer method.

Dynamic adjustment techniques for aligning video images in cathode ray tube (CRT) devices are disclosed. A host computer stores correction factor data and video image data in video graphics controller RAM. The host computer processes and transmits the correction factor data, representative of the cathode ray tube distortion characteristics, to the CRT device during the retrace time of the electron beam and video image data during the trace time. The correction factor data may be generated by a vision system, a gain matrix table, interpolation engine or manual methods. Circuitry, within the CRT device, for separating the correction factor data from the video signal is disclosed along with the methods and apparatus used to decode correction data. Data can also be transferred from the monitor back to the host computer over the video connector.

Provided is a cathode ray tube video display device, including: a micro computer for receiving data of factors affecting the brightness of a screen with time, computing a decreased amount of the brightness of the screen to compensate for the decreased amount and outputting a screen brightness compensation signal; and cathode ray tube controlling means for receiving the screen brightness compensation signal output from the micro computer, controlling a brightness level of a chrominance signal applied externally according to a level of the screen brightness compensation signal, and compensating the brightness of the screen which is decreased with time.

In a rear projection television, cathode ray tubes are mounted inside an enclosure so that each cathode ray tube projects output images onto a rear projection screen using a corresponding electron beam. Calibration images are generated for each cathode ray tube. A camera, also mounted inside the enclosure, acquires an input image of each calibration image. A distortion in each input image is measured, and the output images of the cathode ray tubes are corrected by adjusting the signals controlling the corresponding electron beams according to the distortion.

A system for generating correction factor data that is representative of the distortion characteristics of a cathode ray tube. The correction factor data is stored with a cathode ray tube to allow later alignment of a video signal, or can be provided on a storage medium or on a network. Distortion data, and resultant correction factor data is generated for a series of discrete physical locations on the cathode ray tube screen. In this manner, the entire screen surface can be utilized to align a video image. Maximum correctable distortion data is also generated in accordance with the present invention to provide exit criteria for cathode ray tube manufacturers. The exit criteria is based upon maximum correction factor data that can be generated to correct distortions. A characterization module is provided that can be coupled to cathode ray tube coils that stores the correction factor data or an identification number for the cathode ray tube that can be used to retrieve the correction factor data from any desired source such as CD ROMS, a LAN, a database coupled to a WAN, or the Internet, etc. Interpolation techniques can be used to generate correction factor data for any desired number of interpolation points based upon correction factor data provided for a lesser number of characterization locations.

A method and system for preventing a visual video copy being made of a projected image on a screen. In a theater or television or computer screen environment, an image is displayed on a screen by a film projector or a video projector or by the cathode ray tube or the LCD screen. A form of piracy is accomplished by copying the image on the screen with a video camcorder or camera. This invention seeks to produce visual presentations which invention inhibits off-screen copying by camcorders or cameras. A preferred embodiment of the invention comprises of recording means which records images at variable frame rates which rates are either pre-programmed or decided by the user of the means. The variation of the frame rates forms a rate sequence which is recorded simultaneously when the images are recorded. The rate sequence will be read by the display device when the recorded images are displayed such that the images are displayed at the frame rates at which they are recorded. An unauthorized attempt to record the image sequence off the screen without the rate sequence will only record images displayed at unsynchronized rates. It will be extremely difficult if not impossible for an unauthorized person to attempt to synchronize his recording means to the various frame rates of display when the frame rate variation is large. This will make the unauthorized duplicated copy virtually unwatchable.

The invention field emitting cathode is a metal nano wire array which grows on metal base of planar electrode and the metal is same as the base's. The thickness of base is 1 micro m to 0.5 mm, the diameter of nano wire is 20-200 nm, the length is 100 to 500 nm. The producing steps are: to select modular board with nanometer holes according to size requirement of display unit, to make a metal filmelectrode on a surface of the selected modular board by evaporating and electroplating, to electrochemical grow metal nanometer wire array in the nanometer holes of nanometer modular board, to clean and dry the dissolved part or whole modular to expose metal nanometer wires. It can be used to cathode-ray tube and plate display, and has low beginning field strength for field emitting cathode, highcurrent density and low cost.

The present invention relates to a transparent conductive thin film and a method for the preparation of the same, and more particularly to a method for the preparation of a transparent conductive thin film comprising the steps of a) preparing a sol solution of antimony-tin oxides (ATO) or indium-tin oxides (ITO), b) forming a transparent coating layer on an outer surface of a cathode ray tube using the sol solution, and c) rapidly increasing a temperature of the transparent coating layer to a predetermined temperature of 300 to 1200° C., and rapidly cooling the transparent coating layer either immediately or after maintaining the predetermined temperature for up to 20 seconds, and a transparent conductive thin film prepared by this preparation method, i.e., a transparent conductive thin film which not only has superior conductivity, high hardness, and non-reflectivity but also saves production process time and increases production process effectiveness, and a method for the preparation of the same.

Manufacturing steps for a cathode ray tube or a glass bulb for the cathode ray tube are controlled in such a manner that a two-dimensional matrix code 3 comprised of a plurality of dots is marked by laser in an outer side surface of a glass bulb 1, 5, the two-dimensional matrix code 3 containing the information which can identify individually glass bulbs, and the manufacturing steps are conducted by using a computer and the particulars specified by the serial information.

A sealing glass composition in powdered form comprising a crystallizable base glass in the vitreous state and vanadium zirconium silicate in an amount from about 0.1 to 1 weight percent of the base glass. The sealing glass also may contain aluminum oxide having a particle size of about 90 to 99 percent minus 325 mesh in an amount from about 0.1 to 1.0 weight percent of the base glass and bismuth nitrate in an amount from about 0.02 to 0.08 weight percent of the base glass. The glass composition can be used to seal cathode ray tube face plates and funnels with excellent results when heated to a hold range of about 4300 C to 4500 C. The crystallized sealing glass exhibits improved adhesion to seal edges of the face plates and funnels, increased strength, and improved resistance to organic contamination.

The invention discloses an intelligent building system. In the invention, on the basis of the existing digital technology, by adopting a modern architecture technology, a modern control technology, a computer technology, a communication technology and a CRT (cathode ray tube) image display technology, namely 'A+4C', sharing of information resource and integrated task management of information resources are realized; and by means of design and implementation of a Web-based configuration software platform, the problem of heterogeneous interconnection among subsystems in an intelligent building is solved so that a remote user can monitor field configuration pictures of equipment through a standard Web browser. In addition, the intelligent building system is simple in operation and convenient in maintenance.

Provided is an antireflection film comprising a transparent support, at least one high refractive index layer having a refractive index higher by 0.05 or greater but not greater than 1.5 than that of the transparent support and a low refractive index layer having a refractive index lower by 0.05 or greater but not greater than 2.0 than that of the high refractive index layer, wherein the high refractive index layer contains matting agent particles having an average particle size of 0.3 μm or greater but not greater than 20 μm; and the film has a haze value of 10% or less. This antireflection film has a low reflectance, is clear, has a surface less tinged with white and has reduced color due to interference, so that it is suitably used for image display devices such cathode ray tube display device (CRT), plasma display panel (PDP) and liquid crystal display (LCD). The film is also used for a polarizing plate.

A leaching composition that substantially removes lead from solid materials and a method of using said composition. Preferably, the concentration of lead in the solid materials following processing is low enough that the solid materials can be reused and/or disposed of at minimal cost to the processor. Preferably, the solid materials comprise glass, such as cathode ray tube glass.

Coupling fluids for use in optically coupling a projection lens system of a projection television to a cathode ray tube (CRT (16)) are provided. The fluids have: (1) at least one polymer having a siloxane backbone, i.e., at least one polymer having a -Si-O-Si-O-Si- backbone, and (2) methyl, phenyl, and hydrophilic groups attached to the silicon atoms of the backbone. The fluid can be composed of a single siloxane polymer having methyl, phenyl, and hydrophilic side groups or a mixture of a siloxane polymer having methyl and phenyl side groups with a siloxane polymer having methyl and hydrophylic side groups. The index of refraction of the fluid is preferably greater than 1.52 so as to minimize reflections at the interface between the fluid and the faceplate (17) of the CRT (16).