GB1342636A – Manufacture of luminescent screen structures
– Google Patents
GB1342636A – Manufacture of luminescent screen structures
– Google Patents
Manufacture of luminescent screen structures
Info
Publication number
GB1342636A
GB1342636A
GB1334471*[A
GB1334471A
GB1342636A
GB 1342636 A
GB1342636 A
GB 1342636A
GB 1334471 A
GB1334471 A
GB 1334471A
GB 1342636 A
GB1342636 A
GB 1342636A
Authority
GB
United Kingdom
Prior art keywords
phosphor
plating
baking
light absorbing
binder
Prior art date
1970-05-05
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
GB1334471*[A
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.)
RCA Corp
Original Assignee
RCA Corp
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.)
1970-05-05
Filing date
1971-05-05
Publication date
1974-01-03
1971-05-05
Application filed by RCA Corp
filed
Critical
RCA Corp
1974-01-03
Publication of GB1342636A
publication
Critical
patent/GB1342636A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
H01J29/327—Black matrix materials
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
H01J29/187—Luminescent screens screens with more than one luminescent material (as mixtures for the treatment of the screens)
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
H01J29/34—Luminescent screens provided with permanent marks or references
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
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
H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas
Abstract
1342636 Electroless plating R C A CORPORATION 5 May 1971 [5 May 1970] 13344/71 Heading C7F [Also in Division H1] A method of producing a luminescent screen structure for an image reproducer (e.g. a c.r.t.) comprising light emitting and light absorbing areas on a support surface 23, comprises coating the support surface with a pattern of deposits comprising film-forming binder material and phosphor particle electrolessly plating only the areas between the deposits with at least one of Ni, Co and Cu, and optionally also including Fe, Mn or W, and converting the plated metal to an adherent dark coloured and light absorbing compound material. Surface 23 may be coated with an initiator by cleaning and washing with a 10% aqueous solution of fluoroboric acid to leach and render hydrophilic, rinsed with an aqueous acidic stannous chloride solution whereby stannousions are absorbed, rinsed with Pd salt solution, Pd ions replacing stannous ions producing discontinuous monolayer 25. Green, blue, red phosphors 27, 29, 31 are photographically offset or screen printed, the phosphor being mixed with the binder or applied after the binder is printed. Plating may use Co So 4 7H 2 O, sodium pyrophosphate and conc. ammonium hydroxide, pH being 10 to 10-5 and 90 to 100F temperature producing 0.005mn thickness, followed by aluminizing and baking at 440C in air to oxidize the Co to a black material of one or more oxides and removing organic material. The conversion to a dark coloured material may be by oxidizing or sulfurizing or otherwise converting Ni and Co from black oxides and sulfides and conversion may be by baking in a gas ambient or by a reaction in a liquid medium. In plating, both temperatures of 90 to 100F reduce non-uniformities, a thin layer of an additional promoter, e.g. heat treated tin oxide, leached or hydrated suface, beneath the initiation reduces peeling, phosphor dot porosity may be reduced by baking at 150C or by incorporating an organic filler (e.g. an acrylate copolymer) to promote the hydrophobic character. The film forming binder used with the phosphor reduces Co metal ion poisoning. Reference is made to shadow mask colour TV tube with a light absorbing screen matrix.
GB1334471*[A
1970-05-05
1971-05-05
Manufacture of luminescent screen structures
Expired
GB1342636A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US3469870A
1970-05-05
1970-05-05
Publications (1)
Publication Number
Publication Date
GB1342636A
true
GB1342636A
(en)
1974-01-03
Family
ID=21878041
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1334471*[A
Expired
GB1342636A
(en)
1970-05-05
1971-05-05
Manufacture of luminescent screen structures
Country Status (7)
Country
Link
US
(1)
US3681110A
(en)
JP
(1)
JPS513629B1
(en)
CA
(1)
CA928164A
(en)
DE
(1)
DE2122258A1
(en)
FR
(1)
FR2091227A5
(en)
GB
(1)
GB1342636A
(en)
NL
(1)
NL7106070A
(en)
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NL7500616A
(en)
*
1975-01-20
1976-07-22
Philips Nv
PROCEDURE FOR SELECTIVELY METALLIZING THE DISPLAY OF A CATHOD RAY TUBE AND CATHOD RAY TUBE MADE IN ACCORDANCE WITH THIS PROCESS.
US4556620A
(en)
*
1983-12-27
1985-12-03
Rca Corporation
Image display including a light-absorbing matrix of zinc-iron sulfide and method of preparation
DE4018399A1
(en)
*
1990-06-08
1991-12-19
Leybold Ag
METHOD FOR COATING A SUBSTRATE, ESPECIALLY A GLASS DISC, IN ORDER TO ACHIEVE OPACITY, AND METHOD COATED SUBSTRATE
DE4108616C1
(en)
*
1991-03-18
1992-05-07
Flachglas Ag, 8510 Fuerth, De
KR950034365A
(en)
*
1994-05-24
1995-12-28
윌리엄 이. 힐러
Anode Plate of Flat Panel Display and Manufacturing Method Thereof
AR064377A1
(en)
2007-12-17
2009-04-01
Rovere Victor Manuel Suarez
DEVICE FOR SENSING MULTIPLE CONTACT AREAS AGAINST OBJECTS SIMULTANEOUSLY
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5212608B2
(en)
*
1971-09-14
1977-04-08
1970
1970-05-05
US
US34698A
patent/US3681110A/en
not_active
Expired – Lifetime
1971
1971-04-13
CA
CA110239A
patent/CA928164A/en
not_active
Expired
1971-05-04
JP
JP46029771A
patent/JPS513629B1/ja
active
Pending
1971-05-04
NL
NL7106070A
patent/NL7106070A/xx
unknown
1971-05-05
GB
GB1334471*[A
patent/GB1342636A/en
not_active
Expired
1971-05-05
DE
DE19712122258
patent/DE2122258A1/en
active
Pending
1971-05-05
FR
FR7116164A
patent/FR2091227A5/fr
not_active
Expired
Also Published As
Publication number
Publication date
DE2122258A1
(en)
1971-11-18
NL7106070A
(en)
1971-11-09
JPS513629B1
(en)
1976-02-04
US3681110A
(en)
1972-08-01
CA928164A
(en)
1973-06-12
FR2091227A5
(en)
1972-01-14
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Legal Events
Date
Code
Title
Description
1974-05-15
PS
Patent sealed [section 19, patents act 1949]
1977-11-30
PLNP
Patent lapsed through nonpayment of renewal fees
