GB1378990A - Luminescent screen assemblies for post-deflection focusing type colour picture tubes - Google Patents

Luminescent screen assemblies for post-deflection focusing type colour picture tubes

Info

Publication number
GB1378990A
GB1378990A GB6012772A GB6012772A GB1378990A GB 1378990 A GB1378990 A GB 1378990A GB 6012772 A GB6012772 A GB 6012772A GB 6012772 A GB6012772 A GB 6012772A GB 1378990 A GB1378990 A GB 1378990A
Authority
GB
United Kingdom
Prior art keywords
post
screen assemblies
luminescent screen
picture tubes
focusing type
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
Application number
GB6012772A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1378990A publication Critical patent/GB1378990A/en
Expired legal-status Critical Current

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
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Cosmetics (AREA)
  • Luminescent Compositions (AREA)
  • Laminated Bodies (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1378990 Cathode-ray tubes HITACHI Ltd 29 Dec 1972 [30 Dec 1971] 60127/72 Heading H1D The screen of a part-deflection focusing colour television tube is coated first with aluminium and then with a layer of graphite particles having a density in the range 0À2 to 0À5 gm.cm<SP>-3</SP>. and a thickness in the range 3000 to 800Š, whereby to suppress halo due to electrons scattered from the colour selection grid without undue reduction of brightness.
GB6012772A 1971-12-30 1972-12-29 Luminescent screen assemblies for post-deflection focusing type colour picture tubes Expired GB1378990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP235372A JPS5727575B2 (en) 1971-12-30 1971-12-30

Publications (1)

Publication Number Publication Date
GB1378990A true GB1378990A (en) 1975-01-02

Family

ID=11526893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6012772A Expired GB1378990A (en) 1971-12-30 1972-12-29 Luminescent screen assemblies for post-deflection focusing type colour picture tubes

Country Status (5)

Country Link
JP (1) JPS5727575B2 (en)
CA (1) CA963070A (en)
DE (1) DE2263825C3 (en)
FR (1) FR2166164B1 (en)
GB (1) GB1378990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120840A (en) * 1982-05-12 1983-12-07 Philips Electronic Associated Contrast improvement in vacuum image display devices

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58184073U (en) * 1982-06-01 1983-12-07 シ−ケ−デイコントロ−ルズ株式会社 Gas flow control valve
US4623820A (en) * 1984-05-07 1986-11-18 Rca Corporation CRT with carbon-particle layer on a metallized viewing screen
KR960016719B1 (en) * 1993-02-08 1996-12-20 마쯔시다덴기산교 가부시기가이샤 Electron beam display and method of manufacturing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4531546Y1 (en) * 1970-01-26 1970-12-03
JPS5222015B2 (en) * 1972-06-20 1977-06-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120840A (en) * 1982-05-12 1983-12-07 Philips Electronic Associated Contrast improvement in vacuum image display devices

Also Published As

Publication number Publication date
FR2166164B1 (en) 1975-03-28
JPS4874780A (en) 1973-10-08
DE2263825B2 (en) 1975-11-20
DE2263825A1 (en) 1973-07-12
DE2263825C3 (en) 1979-01-11
FR2166164A1 (en) 1973-08-10
CA963070A (en) 1975-02-18
JPS5727575B2 (en) 1982-06-11

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee