FR2373154A1 - Flat CRT screen with limits for beam deflection - has large number of parallel vertical walls forming channels between front and back walls - Google Patents

Flat CRT screen with limits for beam deflection - has large number of parallel vertical walls forming channels between front and back walls

Info

Publication number
FR2373154A1
FR2373154A1 FR7735827A FR7735827A FR2373154A1 FR 2373154 A1 FR2373154 A1 FR 2373154A1 FR 7735827 A FR7735827 A FR 7735827A FR 7735827 A FR7735827 A FR 7735827A FR 2373154 A1 FR2373154 A1 FR 2373154A1
Authority
FR
France
Prior art keywords
large number
limits
crt screen
flat crt
beam deflection
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.)
Granted
Application number
FR7735827A
Other languages
French (fr)
Other versions
FR2373154B1 (en
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.)
Filing date
Publication date
Priority claimed from US05/746,213 external-priority patent/US4103205A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2373154A1 publication Critical patent/FR2373154A1/en
Application granted granted Critical
Publication of FR2373154B1 publication Critical patent/FR2373154B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/124—Flat display tubes using electron beam scanning

Landscapes

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

Abstract

A flat CRT screen has a conducting system to limit the beam and to deflect it selectively out of the conducting system. There is an earthing plane formed in front of the screen, with holes which would allow the beam to penetrate during the deflection. There is limiting device on the side which extends on each side of the path of the beam of a conductor. The electrons are limited to a relatively narrow beam in the sideways direction. The tube contains a large number of parallel support walls (24) mounted vertically between the front and back walls (18, 20). They form a number of chanels (26).
FR7735827A 1976-12-01 1977-11-29 Flat CRT screen with limits for beam deflection - has large number of parallel vertical walls forming channels between front and back walls Granted FR2373154A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/746,213 US4103205A (en) 1975-08-25 1976-12-01 Flat display device with beam guide

Publications (2)

Publication Number Publication Date
FR2373154A1 true FR2373154A1 (en) 1978-06-30
FR2373154B1 FR2373154B1 (en) 1980-09-12

Family

ID=24999910

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7735827A Granted FR2373154A1 (en) 1976-12-01 1977-11-29 Flat CRT screen with limits for beam deflection - has large number of parallel vertical walls forming channels between front and back walls

Country Status (10)

Country Link
JP (1) JPS5380962A (en)
AU (1) AU509561B2 (en)
CA (1) CA1088613A (en)
DE (1) DE2753643A1 (en)
ES (1) ES464425A1 (en)
FR (1) FR2373154A1 (en)
NL (1) NL7713233A (en)
PL (1) PL202574A1 (en)
SE (1) SE7713450L (en)
ZA (1) ZA776995B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850670A (en) * 1955-12-02 1958-09-02 Kaiser Ind Corp Electronic device
US2858464A (en) * 1955-09-26 1958-10-28 Westinghouse Electric Corp Cathode ray tube
US2953707A (en) * 1957-03-29 1960-09-20 Bell Telephone Labor Inc Electron beam focusing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858464A (en) * 1955-09-26 1958-10-28 Westinghouse Electric Corp Cathode ray tube
US2850670A (en) * 1955-12-02 1958-09-02 Kaiser Ind Corp Electronic device
US2953707A (en) * 1957-03-29 1960-09-20 Bell Telephone Labor Inc Electron beam focusing system

Also Published As

Publication number Publication date
ZA776995B (en) 1978-09-27
ES464425A1 (en) 1978-08-01
JPS5380962A (en) 1978-07-17
PL202574A1 (en) 1978-06-19
AU3100077A (en) 1979-06-07
DE2753643A1 (en) 1978-06-08
SE7713450L (en) 1978-06-02
FR2373154B1 (en) 1980-09-12
AU509561B2 (en) 1980-05-15
CA1088613A (en) 1980-10-28
NL7713233A (en) 1978-06-05

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Legal Events

Date Code Title Description
ST Notification of lapse