Abstract:
To realize a high-quality flat-face type of color cathode ray tube by combining a tint panel with a pressed mask, the outer surface of the panel of the color cathode ray tube is made nearly flat and the inner surface of the panel is curved in a concave shape, and the long-length direction pitch of slots formed in an aperture region 2 of a pressed mask 1 to be disposed close to the inner surface and the connection-direction width of each of bridges which connect the slots are made different between a central portion (A) and a peripheral portion (B) in the apertured region 2 of the pressed mask 1, whereby the ratio of bridges per unit area is made larger in the central portion (A) than in the peripheral portion (B) or the opening rate of slots per unit area is made larger in the peripheral portion (B) than in the central portion (A). According to this construction, the mechanical strength of the central portion (A) of the pressed mask becomes large, whereby it is possible to restrain the occurrence of undesired deformation of the pressed mask 1 due to the increase of the radius of curvature of the central portion (A) and it is possible to uniformize brightness over the entire screen.
Abstract:
A resonant microcavity display (20) having microcavity with a substrate (25), a phosphor active region (50) and front and rear reflectors (30 and 60). The front and rear reflectors may be spaced to create either a standing or treaveling eledtromagnetic wave to enhance the efificenty of the light transmission.
Abstract:
An electroluminescence phosphor, containing zinc sulfide particles that have an average particle size of 20 nullm or less, of which a distribution of particle size is a monodispersion, and which have a multi-twin crystal structure therein.
Abstract:
A Psychophysical Perception Enhancement, for use in juxtaposition to a perceptible output spectrum, and the enhancement includes: (a) designating a target enhancement region in the spectrum and the region is defined as having at least one boundary; (b) proximate to one of the boundaries, defining a perceptible transition region; and (c) in the transition region, applying a filter having a spectral shape substantially inverse to normal perception for the transition region. The enhancement is preferably applicable to a visual or audio systems and can be embodied as a digital, analog, mechanical, passive, optical element.
Abstract:
A method of manufacturing a cathode ray tube (CRT) having a color filter luminescent screen assembly is disclosed. The luminescent screen assembly is formed on an interior surface of a faceplate panel of the CRT tube. The luminescent screen assembly includes a patterned light-absorbing matrix that defines a plurality of sets of fields corresponding to one of a blue region, a red region and a green region. A color filter is formed in one of the plurality of sets of fields. The color filter is formed by applying a photosensitive material layer on the inner surface of the faceplate panel and exposing one of the sets of fields corresponding to the blue region, the red region or the green region, to harden the photosensitive material in such region. A pigment layer, having a color that corresponds to the color of the region of hardened photosensitive material, is then applied over the exposed photosensitive material layer. After the pigment layer is applied, the unhardened photosensitive material layer is removed to form the color filter.
Abstract:
A screen for display devices and manufacturing method thereof capable of enhancing optical characteristics as well as increasing customers' satisfaction through functional substances. The screen for display devices has a front panel formed by coating on the upper surface of a screen substrate a substance mixed with organic or inorganic functional fine particles. The organic or inorganic functional fine particles contain at least one or more functional substances for anti-bacteria, aroma, and deodorization. Further, the fine particles are encapsulated in predetermined sizes so as not to obstruct optical characteristics, and the capsules may be formed in circle-shaped, ellipse-shaped, or amorphous class 1-shaped grain sizes. In non-glare treatments, a convexoconcave-shaped front panel is formed to enhance optical characteristics by mixing a non-glare treatment substance and a fine particle-mixed substance.
Abstract:
The phosphor screen is capable of minimizing the spread of lights in the phosphor screen, so as to restrict fading images and lowering contrast. The phosphor screen comprises a lot of minute phosphor sections. The phosphor sections are respectively enclosed by barriers, which absorb visible lights and have electric conductance, and whose height is equal to or higher than a half of thickness of the phosphor sections. The barriers are made of a material including the particles of an inorganic compound, whose average diameter is 1-8 nullm, and carbon particles, whose average diameter is less than 1 nullm.
Abstract:
A two-layer antistatic/antireflective coating technique employs a 2-step sputtering approach for first depositing an inner metallic antistatic layer on the outer surface of a glass display screen of a video display device such as a cathode ray tube (CRT), followed by deposit of an outer antireflective layer on the antistatic layer. The inner metallic antistatic layer is comprised of Ti and Cr and has a light refractive index of 2.0-2.8 and a thickness of 2-8 nm. The outer antireflective layer is comprised of SiO2 and MgO and has a light refractive index of 1.3-1.47 and a thickness of 70-100 nm. Light transmission through the inner metallic antistatic layer may be closely adjusted as desired by precise control of the thickness of this inner layer.
Abstract:
A viewing screen (100) for a display device (115) includes a glass substrate (110) having a thermal coefficient of expansion within a range of 3.5null10null6null4.5null10null6null C.null1. Viewing screen (100) further includes a black matrix (111), which is affixed to glass substrate (110), and which includes a black surround, a ductile metal, and lead titanate. A method for fabricating viewing screen (100) includes the steps of: adding to a black surround paste a ductile metal paste, adding to the black surround paste lead titanate particles, depositing the black surround paste on glass substrate (110), and heating the black surround paste and glass substrate (110) to affix the black surround paste to glass substrate (110), thereby forming black matrix (111). The ductile metal paste and lead titanate particles are added in amounts sufficient to realize an extent of cracking in black matrix (111) upon repeated heating to a temperature within a range of 450-600null C. that is significantly less than that exhibited by an unimproved black matrix, which is made only from the material of the black surround paste.
Abstract:
A cathode ray tube includes a faceplate panel having a substantially flat exterior surface and a substantially concave interior surface, and a phosphor screen formed on the interior surface of the faceplate panel. The phosphor screen has a horizontal axis, a vertical axis and a diagonal axis. A length from a central portion of the phosphor screen to a point where a vertical side line of the phosphor screen intersects the horizontal axis is less than a length from the central portion of the phosphor screen to a point where the vertical side line intersects the diagonal axis.