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公开(公告)号：JPH09245636A
公开(公告)日：1997-09-19
申请号：JP4998296
申请日：1996-03-07
Applicant: SONY CORP
Inventor： TERASAWA TOSHIHISA , SAWADA TAKEHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a cathode-ray tube manufacturing method by which a high-quality phosphor surface can be formed. SOLUTION: A transmittance measuring device 2 measures the transmittance of an aperture grill 9 conveyed by a conveyor belt 8, at a plurality of measuring points arranged in a matrix. A measurement control device 5 calculates the inherent transmittance of the aperture grill 9 using the transmittance at the plurality of measuring points and in accordance with weighting that takes into account the degree of influence of each measuring point on picture quality. An exposure control device 7 calculates the amount of exposure in accordance with the inherent transmittance of the aperture grill 9. An exposure unit 3 performs exposure that matches the calculated amount of exposure, forming a phosphor surface on the inner surface of a panel 13.
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公开(公告)号：JPH0864130A
公开(公告)日：1996-03-08
申请号：JP22090294
申请日：1994-08-22
Applicant: SONY CORP
Inventor： TSUNODA TATSUYA , SATO TAKASHI , WATABE CHIYOJI , TERASAWA TOSHIHISA , SAWADA TAKEHIRO , NODA ATSUYUKI
IPC: H01J9/227
Abstract: PURPOSE: To prevent the generation of unevenness of color by discharging the curing agent from a discharging nozzle in nearly parallel with the inner surface of a panel. CONSTITUTION: A discharging nozzle 10 as a curing agent coating device is formed into the L-shape, and the curing agent is discharged in nearly parallel with the inner surface of a panel 8. The inner diameter of the discharging nozzle 10 is set at the predetermined size width than that of the conventional one. Consequently, when the tannic acid solution as the curing agent is supplied through a hose 12 connected to the nozzle 10, the tannic acid solution is discharged from the tip of the nozzle 10 in nearly parallel with the inner surface of the panel 8. The tannic acid solution discharged from the nozzle 10 is jetted in parallel, and dropped by the self-weight, but it is dispersed in the process, and width of the curing agent at the time when the curing agent is adhered to the inner surface of the panel, namely, the initial adhesion width is widened. Consequently, the initial adhesion area is widened to 80-300cm , and unevenness of the hardening speed is reduced.
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公开(公告)号：JPH0757652A
公开(公告)日：1995-03-03
申请号：JP20152093
申请日：1993-08-13
Applicant: SONY CORP
Inventor： HAYASHI KOJI , TERASAWA TOSHIHISA
Abstract: PURPOSE:To reduce a difference between chromaticity of a central part on an effective image screen and chromaticity of a peripheral part, and reduce a dispersion range of chromaticity by adjusting a width balance of pseudo- phosphors of three colors according to a light emitting characteristic of a phosphor. CONSTITUTION:After a black stripe 10 is formed, phosphors of respective colors are applied, and fluorescebt screens are manufactured, and an aluminium evaporation film 9 is formed to increase light emitting efficiency of the phosphors of the respective colors, and photosensitive resin 2 used to apply the phosphors and an intermediate film applied before forming the aluminium evaporation film 9 are decomposed, so that fluorescent screens R, G and B are completed. Since patterns of the fluorescent screens R, G and B of three colors are very small, each one of them becomes a light emitting color point to the naked eye, so that light emitting color lines cannot be discriminated, and are recognized as a mixed color of the three colors. Thereby, when a rate of a beam current from an exposure light source 8 to stimulate the phosphors of the three colors is changed, light emission recognizable as various colors can be obtained.
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公开(公告)号：JP2001185031A
公开(公告)日：2001-07-06
申请号：JP36399299
申请日：1999-12-22
Applicant: SONY CORP
Inventor： TERASAWA TOSHIHISA , KAWAHASHI JUNJI
Abstract: PROBLEM TO BE SOLVED: To provide a device of attaching a film for a cathode ray tube that enables to attach film to a panel face having rough portions with a uniform attachment pressure without an exchange of an attachment roll. SOLUTION: This device 21 of attaching a film for the cathode ray tube 25 includes the attachment roll 23 for pressing the film 31 into a panel face 27 of the cathode ray tube 25 while rotating and moving relatively and parallel to the panel face 27, and press roll 41 being disposed at predetermined positions of axial direction of the attachment roll 23 and for locally pressing the attachment roll 23 into the panel face 27 and rotating together with the attachment roll 23.
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公开(公告)号：JPH1097826A
公开(公告)日：1998-04-14
申请号：JP25065396
申请日：1996-09-20
Applicant: SONY CORP
Inventor： TERASAWA TOSHIHISA
IPC: H01J9/227
Abstract: PROBLEM TO BE SOLVED: To provide a cathode-ray tube having excellent color characteristics by plotting, as an exposure data, a mark corresponding to an error of light transmissibility from its design value on a panel part inside surface by exposure so as to decide an exposure rate by the mark. SOLUTION: Green phosphoric stripes are formed on the internal surface of a face part 8 in which black stripes are formed, slurry formed by mixing green phosphoric body and light sensing agent tougher is spread on the internal surface of a panel part 7 so as to form a mixture film by removing moisture and a color selection mechanism used as a mask is installed thereon. When the mark is detected by a detection means via the color selection mechanism fitted to the panel part 7, ultraviolet rays radiated from an ultraviolet rays lamp optically exposed the mixture film in a stripe state and prints the mixture film on the internal surface of the face part 8 in the stripe state. Green phosphoric body stripes are formed adjacently to a range where no carbon stripe is formed on the internal surface of the face part 8. And phosphoric stripes are formed in order of blue and red and in the same work process.
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Patent Agency Ranking
公开(公告)号：JPH1092311A
公开(公告)日：1998-04-10
申请号：JP24523196
申请日：1996-09-17
Applicant: SONY CORP
Inventor： TSUNODA TATSUYA , TERASAWA TOSHIHISA , MIZUTANI MIKIO
IPC: H01J9/227
Abstract: PROBLEM TO BE SOLVED: To prevent the deterioration of white uniformity, and the extrusion failure of the fluorescent screen to multiple color by irradiating with ultraviolet rays corresponding to the deformation due to thermal expansion of a panel glass, and manufacturing a phosphor screen at an adequate position. SOLUTION: At the time of exposure in forming a carbon stripe CS and phosphor stripes RS, GS, and BS, the carbon stripe CS and phosphor stripes RS, GS, and BS are formed at adequate positions of a panel glass 3 inner surface, by making the exposure through correction lens systems 12 and 13 in accordance with deformation due to the thermal expansion of the panel glass 3 in respective processes.
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公开(公告)号：JPH08318203A
公开(公告)日：1996-12-03
申请号：JP15081795
申请日：1995-05-24
Applicant: SONY CORP
Inventor： KASAI KIYOSHI , KONDO KEIICHIRO , TERASAWA TOSHIHISA
Abstract: PURPOSE: To reuse a viscous solution, which is excessively applied to a treatment body to be coated and flows down from the body, without requiring troublesome processes, to effectively use the viscous solution, to lower the waste liquid treatment cost, to lower the cost of products for which the viscous solution is used, and to contribute saving of natural resources. CONSTITUTION: This apparatus has recovering pipelines 8, 9, 10, 12, 13, 14, 16 to recover an excessive portion of a viscous solution 3 and turn it back to a tank 2 for application, and dust removal and defoaming works are carried out during a process in which the excessive portion of the viscous solution 3 passes the recovering pipelines.
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公开(公告)号：JPH04137337A
公开(公告)日：1992-05-12
申请号：JP25830990
申请日：1990-09-27
Applicant: SONY CORP
Inventor： KONDO KEIICHIRO , TERASAWA TOSHIHISA
IPC: H01J9/22
Abstract: PURPOSE:To prevent floating and separation of a metal back layer in a baking process by previously drying a middle film material in a preset region at a temperature below the film forming temperature before the drying process. CONSTITUTION:Before a drying process in which a middle film material 4 is formed in a middle film, the middle film material 4 which is previously applied in a preset region, for example, an useless screen part such as a panel shirt 5 and so on, is dried at a temperature below the film forming temperature. Drying of the middle film material 4 is promoted, and cracks 7 are generated in the middle film material 4 which is in semi-dry state by this promotion. Then, when the middle film material 4 is formed into a middle film in the next drying process (and water treatment process), a kind of gas escaping parts are constructed by the cracks 7, and when the middle film is thermally decomposed and removed in the baking process carried out thereafter, since gas escapes to the outside through the gas escaping parts, floating and separation of a metal back layer 8 can not be generated.
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公开(公告)号：JPH10290947A
公开(公告)日：1998-11-04
申请号：JP10150297
申请日：1997-04-18
Applicant: SONY CORP
Inventor： TERASAWA TOSHIHISA , TAGO TAKESHI , BABA HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To prevent the splashes of liquid chemicals sticking to a panel face by including splashing preventive plates which exist between the panel and the base of a liquid chemical tank and prevent the bouncing back of the liquid chemicals from the liquid chemical tank by developing on the circumference of the panel. SOLUTION: The splashing preventive plates are arranged between the roller conveyors on the circumference of the panel 20 by developing to enclose the spacings between the roller conveyors. The liquid chemicals flowing along the inner flanks of the panel 20 fall onto the ends 3 of the first splashing preventive plate 1a and second splashing preventive plate 2b projecting to the inner side of the panel 20 and are once accepted by the splashing preventive plates 2a, 2b. The liquid chemicals fall into the liquid chemical tank after flowing on these plates. The liquid chemicals falling onto the bottom plate 32 of the liquid chemical tank by colliding against the inside surface of the panel 20 are bounced back by the bottom plate 32 and side plates 31 of the liquid chemical tank by their force, by which the splashes are formed. Since the splashing preventive plates 2a, 2b close the spacings between the roller conveyors on the circumference of the panel 20, the adhesion of the liquid chemicals at the panel face 21 is prevented.
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公开(公告)号：JPH0945242A
公开(公告)日：1997-02-14
申请号：JP21010095
申请日：1995-07-25
Applicant: SONY CORP
Inventor： WATABE CHIYOJI , TERASAWA TOSHIHISA , SATO TAKASHI
IPC: H01J9/227
Abstract: PROBLEM TO BE SOLVED: To reduce the contract of a boundary line without following cost increase, and eliminate the failure of the presence of the boundary line on a picture surface, by changing the preparing method for a phosphor slurry of color formed at first from a conventional method, in forming a phosphor on the inner surface of a cathode-ray tube panel. SOLUTION: A three-color phosphor is formed by repeating the formation of a phosphor three times, wherein a phosphor slurry, including at least a phosphor, a binder, light cross-linking material, and water, is applied to the inner surface of a cathode-ray tube panel, and then the phosphor slurry is exposed and developed. At that time, about the phosphor slurry of a color to be formed at first, adjustment for reducing the contrast of a boundary line, resulting from drying the slurry in a process of applying, is performed by adjusting a ratio and/or viscosity of the phosphor slurry to the binder of the phosphor, instead of by mixing a surface active agent.
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