Abstract:
PURPOSE: To easily manufacture a filter pattern by applying rinse treatment to remove the second pigment layer formed on the first pigment layer obtained by means of exposure-hardening-treatment, by using a pigment solution containing an adhesion controlling agent at least in one part. CONSTITUTION: A silica or aluminosilane film is formed in a whole surface of a glass substrate 1. A photoabsorptive layer 2 of prescribed pattern of graphite particle is formed on this substrate 1. Next on this layer, after applying a blue pigment dispersed solution dried, exposure hardening and rinsing is performed through a color select filter, to form a blue color pigment layer 3. Then, by using a green color pigment dispersed solution, a green color pigment layer 5 is formed by means of exposure hardening and rinse treatment. A red color pigment dispersed solution is applied to be dried to form a red color pigment layer 6 on this substrate 1. Here, in each pigment dispersed solution, an adhesion controlling agent of silica, Li-silicate, alumina, etc., of 0.1μm or less grain size is contained. Next, by rinse treatment, each color pigment layer 3, 5, 6 of prescribed pattern is obtained. Thereafter, each color fluorescent material layer 7 to 9 is provided.
Abstract:
PROBLEM TO BE SOLVED: To reduce cost by facilitating division in the two-dimensional direction of a metal film used as a metal back layer and reducing the number of processes for division. SOLUTION: This method for forming the metal back layer 12 comprises a process preparing a transfer film 5 wherein the a mold releasing agent layer 2, a metal film 3 and a resin film 4 are sequentially laminated on a base film 1, a process forming a phosphor 9 containing a phosphor layer 7 and a light-shielding layer 8 on the inner surface of a front face substrate 6, a process forming an adhesive layer 10 in a dot shape on the phosphor layer 7 of the phosphor 9 or the phosphor layer 7 containing a part of the light-shielding layer 8, a process pressing the transfer film 5 on the phosphor 9 keeping the resin film 4 downward and a process stripping the base film 1 of the transfer film 5. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a thin-type image display device having good contrast and excellent withstand voltage characteristics. SOLUTION: This image display device is provided with a face plate; a rear plate arranged facing the face plate; a large number of electron emission elements formed on the rear plate; and a light absorbing layer and a phosphor layer formed on the inner surface, facing the rear plate, of the face plate. The light absorbing layer has a matrix lattice shaped pattern, and the phosphor layer has a striped pattern. The thickness of the light absorbing layer is made as thin as 2 μm or less, and it is preferable to form the pattern of the phosphor layer on the pattern of the light absorbing layer so as to have no clearance between the adjacent stripes. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method and equipment for cleaning a substrate wherein dirt sticking to the marginal part or the end face of the planar substrate can be cleaned without breaking a layer formed in the central part of the substrate surface. SOLUTION: The planar substrate 11 is supported by a supporting mechanism 30, and cleaning members 24a, 56 are pressed to the marginal part of the substrate surface or its end face. In this state, the substrate and the cleaning members are relatively moved along the marginal part of the substrate by a driving mechanism 34 to remove the dirt sticking to the marginal part of the substrate surface or the end face by the cleaning members. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a display provided with an inexpensive electron gun of a long service life high in electron emission ability with excellent luminous efficiency and reliability. SOLUTION: This display is constituted to make a rear plate formed with an electron source in its inner face arranged opposedly to a face plate having a phosphor layer. The electron source is provided with an Al layer formed with a prescribed pattern, a porous alumina layer formed by anodic oxidation on one face of the Al layer, an embedded layer comprising Ni or the like formed in a nano-hole thereof, and a thin film comprising Au or the like formed on a surface of the porous alumina layer with a different pattern. A bottom end part of the nano-hole in the porous alumina layer is partitioned from the Al layer by a barrier layer comprising alumina. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescent plane having a metal back with high brightness of which, an electron emitting element and the fluorescent plane are prevented from breakage and deterioration caused by discharge. SOLUTION: The fluorescent plane with a metal back has a metal back layer with high reflection rate.high resistance. A layer of oxide of In, Sn, or Bi is used as the metal back layer with high reflection rate.high resistance. For the fluorescent plane with metal back, the metal back layer is possible to form into a lamination structure of a layer with high reflection rate formed to phosphor layer side, and a high resistance layer. Here, the layer with high reflection rate can be constructed by Al, In, Sn, or Bi, and a layer of oxide or nitride of Al, In, Sn, Bi, or Si can be used as the high resistance layer. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescent face with metal back and an image display device that are excellent in both characteristics of withstand voltage characteristics and luminance characteristics and a formation method of the fluorescent face with metal back. SOLUTION: In the fluorescent face that has at least a fluorescent substance layer on the inner face of the face plate and a metal back layer formed on top of it, it satisfies the following formula, when the mean thickness of the metal back layer is made d (nm), the mean light transmittance t(%), the surface coarseness of the fluorescent substance layer r1, and the surface coarseness of the metal back layer r2; t≤(2.3-log 10 d)/0.3 and r2/r1×100≥20. And it further satisfies the following formula; Va≤0.002×R 2.1 +0.1×R, provided that R=r2/r1×100. This kind of fluorescent face with metal back can be realized by heat press treatment of the metal membrane formed on a fluorescent face. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To improve a luminance characteristic by suppressing degradation of light emission luminance of a phosphor layer having a metal back in an FED. SOLUTION: In this phosphor layer having the metal back, adhesion of a metal back film to the phosphor layer is 30% or more in contact area ratio between both layers. Thickness of the metal back film is 5 to 100 nm and light transmittance is 10% or lower, thereby providing high luminance display with a high reflecting property. Such phosphor layer having the metal back can be formed by transferring a metal film using a transfer film on the phosphor layer formed on the inner surface of a translucent substrate.
Abstract:
PROBLEM TO BE SOLVED: To provide a color cathode-ray tube having high luminance and high contrast by arranging filter layers having transmissivity of a specific wave length in blue and green light emitting areas on the under side of blue and green phosphor layers on a panel inside surface. SOLUTION: Preferably, a filter layer on which transmissivity of the light having a wave length of 450nm is larger than that having a wave length of 550nm, is arranged in a blue and green light emtting area on the under side of a blue and green phosphor layer on a panel inside surface. Next, filter layers having colors corresponding to respective colors in respective color light emitting areas just under green and red phosphor layers are respectively arranged on this filter layer or the panel inside surface. In this way, since the filter layers are arranged on the panel inside surface, a color cathode-ray tube on which contrast and color purity are improved and which has high luminance and high contrast, can be obtained.
Abstract:
PROBLEM TO BE SOLVED: To obtain a compatibility for the improvement in brightness and contrast characteristics of a effective display screen and the improvement in coloring property of each color including green of a display image, and provide a color picture tube capable of realizing a display of high quality by regulating the chromaticity of a color filter corresponding to the green picture element. SOLUTION: A number of red, blue and green picture elements arranged on the inside of a face plate 101 have a phosphor layer 103 and a color filter 106 interposed with the face plate 101. The green picture element is constituted in such a manner that it has a chromaticity plotted in the fourth quadrant when the chromaticity of the reflected light when the light from a standard light source is emitted from the outside of the face plate 101 is plotted in a coordinate system having a* in (L*a*b*) color system as horizontal shaft and b* as a vertical shaft. Thus, high brightness and high contract characteristics of the effective display screen and high coloring property of each color including green of display image are made compatible, whereby a color picture tube capable of realizing a display of high quality can be provided.