ES2025871A6 - Color cathode ray tube lacking inner shield. - Google Patents
Color cathode ray tube lacking inner shield.Info
- Publication number
- ES2025871A6 ES2025871A6 ES9000117A ES9000117A ES2025871A6 ES 2025871 A6 ES2025871 A6 ES 2025871A6 ES 9000117 A ES9000117 A ES 9000117A ES 9000117 A ES9000117 A ES 9000117A ES 2025871 A6 ES2025871 A6 ES 2025871A6
- Authority
- ES
- Spain
- Prior art keywords
- inner shield
- ray tube
- cathode ray
- color cathode
- high permeability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/88—Coatings
- H01J2229/882—Coatings having particular electrical resistive or conductive properties
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
A color cathode ray tube (10b) lacking an inner shield (16) is disclosed which is characterized in that the inner surface of the funnel is coated with a conductive layer (18b), the conductive layer being made of a high permeability metal or an alloy of high permeability metals, or being made of a high permeability metal or an alloy of high permeability metals and a high resistance material. According to the present invention, the inner shield is totally removed, and therefore, the manufacturing process for the products is simplified and the manufacturing cost is saved.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890009624A KR910010104B1 (en) | 1989-07-06 | 1989-07-06 | Color cathode ray tube without innnershield |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2025871A6 true ES2025871A6 (en) | 1992-04-01 |
Family
ID=19287859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9000117A Expired - Lifetime ES2025871A6 (en) | 1989-07-06 | 1990-01-17 | Color cathode ray tube lacking inner shield. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0406503A3 (en) |
JP (1) | JPH0343943A (en) |
KR (1) | KR910010104B1 (en) |
CN (1) | CN1048631A (en) |
ES (1) | ES2025871A6 (en) |
MY (1) | MY105192A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5536997A (en) * | 1991-05-08 | 1996-07-16 | U.S. Philips Corporation | Cathode ray tube |
KR100403393B1 (en) * | 1996-05-31 | 2004-02-05 | 오리온전기 주식회사 | Method for depositing conductive film for cathode ray tube |
KR20010055983A (en) * | 1999-12-13 | 2001-07-04 | 이완두 | Cathode ray tube having inner and outer conducting layers thereon and the method of forming the same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2721995A (en) * | 1953-06-15 | 1955-10-25 | Magnetic Metals Company | Cathode ray tube shield structures |
US3443138A (en) * | 1966-11-08 | 1969-05-06 | Nat Video Corp | Magnetic shielding means for cathode ray tube |
DE2050841A1 (en) * | 1970-10-16 | 1972-05-04 | Licentia Gmbh | Cathode ray tubes, in particular color television picture tubes |
JPS5149671A (en) * | 1974-10-26 | 1976-04-30 | Asahi Glass Co Ltd | TAIDENATSU TOKUSEIOKOJOSHITA INKYOKUSENKAN |
JPS51120924A (en) * | 1975-04-15 | 1976-10-22 | Daido Steel Co Ltd | Alloy with quick machinability and high magnetic permeability |
US4210844A (en) * | 1978-11-20 | 1980-07-01 | Gte Sylvania Incorporated | Cathode ray tube arc suppressor coating |
JPS59171439A (en) * | 1983-03-18 | 1984-09-27 | Hitachi Ltd | Color braun tube |
JPH01169855A (en) * | 1987-12-25 | 1989-07-05 | Hitachi Ltd | Cathode-ray tube |
-
1989
- 1989-07-06 KR KR1019890009624A patent/KR910010104B1/en not_active IP Right Cessation
- 1989-11-02 JP JP1287287A patent/JPH0343943A/en active Pending
- 1989-11-15 EP EP19890403138 patent/EP0406503A3/en not_active Withdrawn
-
1990
- 1990-01-17 ES ES9000117A patent/ES2025871A6/en not_active Expired - Lifetime
- 1990-01-19 MY MYPI90000098A patent/MY105192A/en unknown
- 1990-01-25 CN CN90100749A patent/CN1048631A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH0343943A (en) | 1991-02-25 |
KR910010104B1 (en) | 1991-12-16 |
EP0406503A2 (en) | 1991-01-09 |
MY105192A (en) | 1994-08-30 |
KR910003733A (en) | 1991-02-28 |
EP0406503A3 (en) | 1991-07-24 |
CN1048631A (en) | 1991-01-16 |
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