JPS55150537A - Color picture tube device - Google Patents

Color picture tube device

Info

Publication number
JPS55150537A
JPS55150537A JP5950679A JP5950679A JPS55150537A JP S55150537 A JPS55150537 A JP S55150537A JP 5950679 A JP5950679 A JP 5950679A JP 5950679 A JP5950679 A JP 5950679A JP S55150537 A JPS55150537 A JP S55150537A
Authority
JP
Japan
Prior art keywords
arrangement
deflection
axis
mask holes
electron beams
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.)
Pending
Application number
JP5950679A
Other languages
Japanese (ja)
Inventor
Koji Nakamura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5950679A priority Critical patent/JPS55150537A/en
Publication of JPS55150537A publication Critical patent/JPS55150537A/en
Pending 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
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
    • H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam
    • H01J31/206—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam with three coplanar electron beams

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To eliminate a necessity of dynamic convergence and improve the resolution of a tube, by arranging electron beams before their deflection so as to be lined up on a straight line in perpendicular to the direction of horizontal scanning and providing shadow mask holes densely arranged in the direction of horizontal scanning. CONSTITUTION:The arrangement of electron beams BB, GB, RB is of an in-line state in the direction of y-axis. An arrangement A of shadow mask holes is that obtained by rotating the arrangement A of the mask holes 90 deg.. An arrangement B of dots in a fluorescent screen can be determined by the arrangement of the electron beams and the arrangement A of the mask holes. Magnetic lines of force of a deflection field generated by a deflecting yoke are shown by chain lines, with a barrel magnetic field in the direction of x-axis and a pincushion magnetic field in the direction of y-axis. In such an arrangement as in the above, the direction in which a more intensified distortion of deflection remains is shifted from the direction of x- axis to the direction of y-axis, capable of shortening the span in the direction with a larger distortion of deflection. In this way, the resolution of an image in a horizontal direction can be improved simultaneously the distortion of deflection in a horizontal direction can be decreased.
JP5950679A 1979-05-14 1979-05-14 Color picture tube device Pending JPS55150537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5950679A JPS55150537A (en) 1979-05-14 1979-05-14 Color picture tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5950679A JPS55150537A (en) 1979-05-14 1979-05-14 Color picture tube device

Publications (1)

Publication Number Publication Date
JPS55150537A true JPS55150537A (en) 1980-11-22

Family

ID=13115207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5950679A Pending JPS55150537A (en) 1979-05-14 1979-05-14 Color picture tube device

Country Status (1)

Country Link
JP (1) JPS55150537A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445440A1 (en) * 1990-03-08 1991-09-11 Koninklijke Philips Electronics N.V. Shadow mask colour display tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445440A1 (en) * 1990-03-08 1991-09-11 Koninklijke Philips Electronics N.V. Shadow mask colour display tube

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