FR2348561A1 - Image reproduction CRT with evacuated vessel - has transparent screen with phosphor coating and matrix of field-effect emission electrodes - Google Patents

Image reproduction CRT with evacuated vessel - has transparent screen with phosphor coating and matrix of field-effect emission electrodes

Info

Publication number
FR2348561A1
FR2348561A1 FR7630818A FR7630818A FR2348561A1 FR 2348561 A1 FR2348561 A1 FR 2348561A1 FR 7630818 A FR7630818 A FR 7630818A FR 7630818 A FR7630818 A FR 7630818A FR 2348561 A1 FR2348561 A1 FR 2348561A1
Authority
FR
France
Prior art keywords
field
emission
emission electrodes
crt
matrix
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
FR7630818A
Other languages
French (fr)
Other versions
FR2348561B3 (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.)
Battelle Memorial Institute Inc
Original Assignee
Battelle Memorial Institute Inc
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 US05/676,492 external-priority patent/US4075535A/en
Application filed by Battelle Memorial Institute Inc filed Critical Battelle Memorial Institute Inc
Publication of FR2348561A1 publication Critical patent/FR2348561A1/en
Application granted granted Critical
Publication of FR2348561B3 publication Critical patent/FR2348561B3/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
    • 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
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/126—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using line sources

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

The screen has a luminescent phosphor layer (3) on a transparent plate (1) over the entire tube window. Field-effect emission electrodes (7) with low emission threshold are arranged in rows and columns and emit towards the phosphor layer. Along the rows of the emission electrodes are conductive tracks (5), mutually insulated, each electrode row being connected to the respective track. A second set of conductive tracks (4), also mutually insulated, are mounted along the emission electrodes columns. The two sets of conductive tracks can be brought at a different potential each. A separate electrode runs parallel to the phosphor layer and is connected to a potential source. At intersection points opposite the emission electrode ends provide potential drops sufficient for field-effect emission.
FR7630818A 1976-04-13 1976-10-13 Image reproduction CRT with evacuated vessel - has transparent screen with phosphor coating and matrix of field-effect emission electrodes Granted FR2348561A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/676,492 US4075535A (en) 1975-04-15 1976-04-13 Flat cathodic tube display

Publications (2)

Publication Number Publication Date
FR2348561A1 true FR2348561A1 (en) 1977-11-10
FR2348561B3 FR2348561B3 (en) 1979-06-22

Family

ID=24714737

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7630818A Granted FR2348561A1 (en) 1976-04-13 1976-10-13 Image reproduction CRT with evacuated vessel - has transparent screen with phosphor coating and matrix of field-effect emission electrodes

Country Status (2)

Country Link
DE (1) DE2646716A1 (en)
FR (1) FR2348561A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561019A1 (en) * 1984-03-09 1985-09-13 Etude Surfaces Lab PROCESS FOR PRODUCING FLAT VISUALIZATION SCREENS AND FLAT SCREENS OBTAINED BY IMPLEMENTING SAID METHOD

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772234A (en) * 1980-10-20 1982-05-06 Matsushita Electric Ind Co Ltd Production of electrode structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561019A1 (en) * 1984-03-09 1985-09-13 Etude Surfaces Lab PROCESS FOR PRODUCING FLAT VISUALIZATION SCREENS AND FLAT SCREENS OBTAINED BY IMPLEMENTING SAID METHOD
EP0155895A1 (en) 1984-03-09 1985-09-25 Jean-Paul Biberian Method for making flat display screens and flat screens made according to this method

Also Published As

Publication number Publication date
DE2646716A1 (en) 1977-11-03
FR2348561B3 (en) 1979-06-22

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Legal Events

Date Code Title Description
ST Notification of lapse