公开(公告)号：JP2000200549A

公开(公告)日：2000-07-18

申请号：JP143599

申请日：1999-01-06

Applicant: SONY CORP

Inventor： WATABE CHIYOJI

IPC: H01J9/227

Abstract: PROBLEM TO BE SOLVED: To manufacture a fluorescent screen of stabilized quality while restricting the rise of panel temperature and making the fine control of panel temperature possible by drying the coating coated on the inner surface of a panel with a heat source so as to form a phosphor film on the inner surface of a panel in the condition that a shielding plate is arranged between the heat source and a cathode-ray tube. SOLUTION: A panel support mechanism 2 of a fluorescent screen manufacturing device 1 supports a panel 3, and the inner surface of the panel is coated with the water soluble photosensitive composition, carbon slurry, phosphor slurry, and filming agent slurry or the like. A heat source 4 is arranged opposite to a main surface of the panel 3, and a shielding plate 6 is supported by a shielding plate support mechanism 5 between the panel 3 and the heat source 4 opposite to the main surface of the panel 3. The shielding plate 6 can be provided with an external control device for controlling the operation of the shielding plate 6 and a detecting device 8 for detecting the main surface temperature of the panel 3. With this structure, remote control of the shielding plate 6 and arrangement of the shielding plate 6 and removal thereof can be performed in response to the main surface temperature of the panel 3.

公开(公告)号：JPH11162346A

公开(公告)日：1999-06-18

申请号：JP32487497

申请日：1997-11-26

Applicant: SONY CORP

Inventor： WATABE CHIYOJI

IPC: G03F7/42 ,  H01J9/227

Abstract: PROBLEM TO BE SOLVED: To provide the black matrix forming method for fluorescent screen while restraining a reaction with a carbon coating film by devising the solution, with which a resist layer is swelled for peeling. SOLUTION: A resist layer 60 is formed in the inner surface of a panel 20 as a structural member of a fluorescent screen in the predetermined area, and a carbon coating film 90 is formed for lamination so as to coat the resist layer 60, and a surface of the carbon coating film 90 is filled with the solution so as to peel the resist layer 60 from the panel 20, and while the carbon coating film 90 formed for lamination on a top surface of the resist layer 60 is peeled so as to form a black stripe 10. In this method of forming the black stripe 10, composition of potassium permanganate solution and sodium hydroxide solution is used as a described solution. Chemical reaction of the solution with the black stripe 10 is thereby restrained so as to form an appropriate black stripe 10.

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.

公开(公告)号：JPH10208635A

公开(公告)日：1998-08-07

申请号：JP1026597

申请日：1997-01-23

Applicant: SONY CORP

Inventor： WATABE CHIYOJI ,  TSUNODA TATSUYA

IPC: G03F7/30 ,  H01J9/227

Abstract: PROBLEM TO BE SOLVED: To obtain the manufacturing method of a fluorescent screen to improve its quality and yield, by improving the developing capacity, in the developing process when the fluorescent screen of a cathode-ray tube is formed. SOLUTION: This manufacturing method of a fluorescent screen has a process to carry out the development by making the expanding direction of developing water 3b by a nozzle 3a near the end of either one side, of plural nozzles 3a provided in a line form, which develop an exposed pattern by injecting developing water 3b, almost symmetric to the expanding direction of the developing water 3b by a nozzle 3a almost at the center. An alternative manufacturing method of the fluorescent screen is a process of carrying out the development by making the injection amount per unit time of developing water 3b by a nozzle 3a near the end of either one side larger than that of the developing water 3b by the nozzle 3a at almost the center may be provided, or a process of carrying out the development by making the injection angle of developing water 3b by the nozzle 3a of any of near one end part smaller than the injection angle of developing water 3b by the nozzle 3a of approximately central part may be provided.

公开(公告)号：JPH1050215A

公开(公告)日：1998-02-20

申请号：JP20015996

申请日：1996-07-30

Applicant: SONY CORP

Inventor： WATABE CHIYOJI ,  TERASAWA TOSHIHISA ,  SATO TAKASHI ,  TSUNODA TATSUYA

IPC: G03F7/004 ,  C08L29/04 ,  C08L71/00 ,  C08L71/02 ,  G03F7/04 ,  H01J9/227

Abstract: PROBLEM TO BE SOLVED: To restrict pouring mark after pouring fluorescent slurry by specifying a composition. SOLUTION: A preprocessing composition is made of powder, polyvinyl alcohol, ammonium dichromate, surfactant, and water. Specifically, zinc sulfide is used for the powder, and weight percentages of the ingredients are, in the order of the above enumeration, 25%, 2.5%, 0.1%, and 0.2%, is weight and the remainder, and the mixture is uniformly mixed. The obtained slurry is extended over a panel of a CRT, developed, and dried. When fluorescent material slurry is poured, dripped, and dried, and when the formed coating surface is visually observed, improvement up to a favorable level is recognized in that almost no pouring mark is found.

公开(公告)号：JPH09245643A

公开(公告)日：1997-09-19

申请号：JP8187496

申请日：1996-03-12

Applicant: SONY CORP

Inventor： WATABE CHIYOJI ,  SATO TAKASHI ,  TSUNODA TATSUYA

IPC: H01J9/227

Abstract: PROBLEM TO BE SOLVED: To obtain a high picture quality improved even in the stripe edge, by fixing a panel, scanning a developer nozzle in the direction of a forming surface of a fluorescent screen stripe with a fixed space, so as to obtain a uniform developing time in the center part and the peripheral part. SOLUTION: In the case of manufacturing a carbon stripe and three-color fluorescent material stripe, a fluorescent screen stripe 2 is formed in the direction Y relating to the internal surface of a panel 1, a developer nozzle row 3 arranged in the direction Z relating to the surface of the panel 1 is opposed. The nozzle row 3 is moved in the direction Y by a nozzle row vertical motion mechanism part 4. The fixed panel 1 and the nozzle row 3 opposed in the direction Z with a fixed space are moved in the direction Y, scanning of developer is performed. By controlling this moving speed, a developing time is made uniform, since an injection direction of the developer is in the same direction to the stripe 2, the amount of liquid traversing the stripe 2 is reduced, the stripe edge is improved. Further, even when the picture plane shape is formed laterally long, it can sufficiently correspond.

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.

公开(公告)号：JPS6372030A

公开(公告)日：1988-04-01

申请号：JP21755386

申请日：1986-09-16

Applicant: SONY CORP

Inventor： KATO HARUO ,  WATABE CHIYOJI ,  MIYAZAKI HIDEKI

IPC: H01J9/227

Abstract: PURPOSE:To enable formation of an excellent black pattern by changing high water pressure into low water pressure in a developing process and injecting an interface activator after the developing process and performing a hard film process. CONSTITUTION:A PVA sensitive film 12 is first developed for 15 seconds with high water pressure of 4 kg/cm to 5 kg/cm or so, and next it is developed for 30 or more seconds with low water pressure of 1.5 kg/cm to 2.5 kg/cm or so, so that a PVA resist layer 15 is formed with stripes on positions corresponding to respective colors. Just after the developing process, an interface activator is injected. Next the layer is coated with a hard film agent. Successively, on the whole surface involving the PVA resist layer 15, a carbon coated film 16 made of carbon slurry is formed, and after it is dried, a peeling agent such as periodate is injected and reversal is performed by water spray, and so the PVA layer 15 and the carbon coated film 16 on the layer 15 are removed to form a black stripe 17.

公开(公告)号：JPS62213038A

公开(公告)日：1987-09-18

申请号：JP5588786

申请日：1986-03-13

Applicant: SONY CORP

Inventor： WATABE CHIYOJI ,  YAMAZAKI JUN ,  KATO HARUO

IPC: H01J9/227

Abstract: PURPOSE:To realize carbon stripes with pretty edges, by preparing a sensitive solution to produce a fluorescent screen by mixing a PVA-ADC type sensitizer and a PVP-DAS type sensitizer, which is used for forming carbon stripes as a photoabsorption layer, for example. CONSTITUTION:As a sensitive solution to produce a fluorescent screen, to form carbon stripes as a photoabsorption layer, for example, is used a sensitive solution mode by mixing a PVA (polyvinyl alcohol)-ADC (ammonium dicromic acid) type sensitizer and a PVP (polyvinyl pyrrolidone)-DAS (diacidic stilbene sodiumsulfonicacid) type sensitizer. Since the sensitive solution mixing the PVA- ADC type and PVP-DAS type sensitizers is used, a contraction of the resist layer of such a sensitizer is prevented in a membrane hardening process. Therefore, carbon stripes with pretty edges can be realized.

公开(公告)号：JPH113656A

公开(公告)日：1999-01-06

申请号：JP15463697

申请日：1997-06-12

Applicant: SONY CORP

Inventor： GOTO KUNIO ,  KINOSHITA NORIYASU ,  WATABE CHIYOJI

IPC: H01J9/227

Abstract: PROBLEM TO BE SOLVED: To quickly, surely and accurately adjust the chromaticity in the case where abnormality of the chromaticity is generated in the fluorescent surface adjusting phosphor slurry by mixing an appropriate quantity of phosphor slurry for adjusting chromaticity in different color from the fluorescent surface adjusting slurry in the fluorescent surface adjusting phosphor slurry, of which chromaticity is to be adjusted. SOLUTION: In the case of correcting chromaticity of the green fluorescent surface adjusting phosphor slurry, a blue chromaticity adjusting phosphor slurry at 4 wt.% or less or a red chromaticity adjusting phosphor slurry at 4 wt.% or less is mixed. In the case of correcting chromaticity of the blue fluorescent surface adjusting phosphor slurry, a green chromaticity adjusting phosphor slurry at 2 wt.% or less or a red chromaticity adjusting phosphor slurry at 2 wt.% or less is mixed. In the case of correcting chromaticity of the red fluorescent surface adjusting phosphor slurry, a green chromaticity adjusting phosphor slurry at 3 wt.% or less or a blue chromaticity adjusting phosphor slurry at 1 wt.% or less is mixed.