IT1245140B - Metodo di fabbricazione di uno schermo fosforico per un tubo a raggi catodici - Google Patents
Metodo di fabbricazione di uno schermo fosforico per un tubo a raggi catodiciInfo
- Publication number
- IT1245140B IT1245140B ITMI910312A ITMI910312A IT1245140B IT 1245140 B IT1245140 B IT 1245140B IT MI910312 A ITMI910312 A IT MI910312A IT MI910312 A ITMI910312 A IT MI910312A IT 1245140 B IT1245140 B IT 1245140B
- Authority
- IT
- Italy
- Prior art keywords
- phosphoric
- screen
- ray tube
- cathode ray
- manufacture
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229910001430 chromium ion Inorganic materials 0.000 abstract 2
- 238000013508 migration Methods 0.000 abstract 2
- 230000005012 migration Effects 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 230000008542 thermal sensitivity Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
Abstract
La presente invenzione si riferisce ad un metodo di fabbricazione di uno schermo fosforico per un tubo a raggi catodici (CRT) e riguarda, in modo più specifico, un metodo di preparazione di una sospensione fosforica utilizzata per la realizzazione dello schermo del tubo a raggi catodici. Il metodo include lo stadio di miscelazione di un materiale fotosensibile appropriato, di un sensibilizzante bicromatico, di un fosforo luminescente e di un intensificatore della migrazione degli ioni cromo. L'aggiunta dell'intensificatore della migrazione degli ioni cromo aumenta le caratteristiche di scorrimento della sospensione fosforica, in modo tale da ottenere una maggior uniformità dello schermo. Inoltre, il risultante strato fosforico fotosensibile risulta notevolmente sensibile alla luce ma presenta una minor sensibilità termica ed una maggior resistenza all'indurimento al buio, rispetto agli strati ottenuti in accordo con la tecnologia anteriore.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI910312A IT1245140B (it) | 1991-02-07 | 1991-02-07 | Metodo di fabbricazione di uno schermo fosforico per un tubo a raggi catodici |
DE4202701A DE4202701A1 (de) | 1991-02-07 | 1992-01-31 | Verfahren zum herstellen eines leuchtschirms fuer eine kathodenstrahlroehre |
CN92100703.5A CN1065549A (zh) | 1991-02-07 | 1992-02-01 | 制造阴极射线管荧光屏的方法 |
PL29336792A PL293367A1 (en) | 1991-02-07 | 1992-02-03 | Method of making image tube luminescent screen and luminophore suspension therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI910312A IT1245140B (it) | 1991-02-07 | 1991-02-07 | Metodo di fabbricazione di uno schermo fosforico per un tubo a raggi catodici |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI910312A0 ITMI910312A0 (it) | 1991-02-07 |
ITMI910312A1 ITMI910312A1 (it) | 1992-08-07 |
IT1245140B true IT1245140B (it) | 1994-09-13 |
Family
ID=11358469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI910312A IT1245140B (it) | 1991-02-07 | 1991-02-07 | Metodo di fabbricazione di uno schermo fosforico per un tubo a raggi catodici |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1065549A (it) |
DE (1) | DE4202701A1 (it) |
IT (1) | IT1245140B (it) |
PL (1) | PL293367A1 (it) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3269838A (en) * | 1963-03-18 | 1966-08-30 | Rca Corp | Method of making luminescent screens for cathode ray tubes |
NL6602797A (it) * | 1966-03-04 | 1967-09-05 | ||
DE3538167A1 (de) * | 1985-10-26 | 1987-04-30 | Standard Elektrik Lorenz Ag | Farbbildwiedergabevorrichtung |
-
1991
- 1991-02-07 IT ITMI910312A patent/IT1245140B/it active IP Right Grant
-
1992
- 1992-01-31 DE DE4202701A patent/DE4202701A1/de not_active Ceased
- 1992-02-01 CN CN92100703.5A patent/CN1065549A/zh active Pending
- 1992-02-03 PL PL29336792A patent/PL293367A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CN1065549A (zh) | 1992-10-21 |
PL293367A1 (en) | 1992-09-21 |
ITMI910312A1 (it) | 1992-08-07 |
DE4202701A1 (de) | 1992-08-20 |
ITMI910312A0 (it) | 1991-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2611198B1 (fr) | Materiau composite a matrice et fibres de renforcement carbonees et son procede de fabrication | |
KR890005801A (ko) | 블랙매트릭스 컬러브라운관 및 그 제조방법 | |
GB1323540A (en) | Correcting lens used to form fluorescent screens of colour television | |
IT1245140B (it) | Metodo di fabbricazione di uno schermo fosforico per un tubo a raggi catodici | |
ES455017A1 (es) | Un metodo para fabricar un tubo de exhibicion de imagenes decolor. | |
IT1261195B (it) | Foglio a trasferimento termico e metodo per formare uno schermo di fosfori impiegando il foglio a trasferimento termico. | |
US2189322A (en) | Photoelectric cathode | |
US3906285A (en) | Luminescent display tube anode assembly comprising anode segments each having a tungsten carbide conductive layer | |
JPS577051A (en) | Radiation excited fluorescent face and manufacture | |
ES412252A1 (es) | Un metodo de fabricar electrofotograficamente una pantalla de imagen para un tubo de imagen de television en co or. | |
GB789090A (en) | Improvements in or relating to x-ray image intensifiers | |
US3632324A (en) | Method of sealing display cathodes in a glass envelope | |
GB1180799A (en) | Manufacturing Cathode-Ray-Tube Display-Screens | |
US3619694A (en) | Character-indicating electron tube with fluorescent display structure | |
US3573529A (en) | Faceplate of thin-window recording tube having intermediate sheet of smaller refractive index than the face plate | |
MY106537A (en) | Structures and processes for fabricating field emission cathodes. | |
GB778793A (en) | Improvements in or relating to devices for intensifying images produced by radiation | |
US2927237A (en) | Voltage indicator tubes | |
JPS5611832A (en) | Directly heated cathode of electron tube and its manufacture | |
JPS5750761A (en) | Fluorescent lamp | |
US2024762A (en) | Light sensitive tube | |
US1955608A (en) | Photoelectric device | |
GB764160A (en) | Wire electrode for electric vapour and/or gaseous discharge lamp | |
US3570000A (en) | Gas-filled cold-cathode indicator display tube | |
KR940007250B1 (ko) | 형광표시판 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |