JPS57121390A - Color picture tube device - Google Patents

Color picture tube device

Info

Publication number
JPS57121390A
JPS57121390A JP648581A JP648581A JPS57121390A JP S57121390 A JPS57121390 A JP S57121390A JP 648581 A JP648581 A JP 648581A JP 648581 A JP648581 A JP 648581A JP S57121390 A JPS57121390 A JP S57121390A
Authority
JP
Japan
Prior art keywords
green
drive
red
blue
picture tube
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
JP648581A
Other languages
Japanese (ja)
Inventor
Toshio Nakakuki
Eizaburo Hamano
Hidetoshi Yamazaki
Hiroo Kobayashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP648581A priority Critical patent/JPS57121390A/en
Publication of JPS57121390A publication Critical patent/JPS57121390A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/28—Arrangements for convergence or focusing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To obtain a well bisymmetrical convergence characteristic in the peripheral part of the screen, by inserting a phase correcting circuit in a luminance signal system to make phases of red, green, and blue drive signals coincident with one another in the signal input teminal of a color picture tube. CONSTITUTION:Color difference signals R-Y, G-Y, and B-Y are inputted to red, green, and blue drive circuits 11-13 respectively, and a luminance signal Y is inputted to these circuits 11-13 also. If the phase of the green drive signal is earlier than that of red and blue drive signals, the luminance signal Y to the green drive circuit 12 is inputted through a phase correcting circuit 14 constituting a delay circuit. Outputs of drive circuits 11-13 are sent to red, green, and blue cathodes KR, KG, and KB of a color picture tube 10 respectively. As the result, the phase of the green drive signal in the cathode KG is delayed to make phases of respective drive signals coincident with one another.
JP648581A 1981-01-21 1981-01-21 Color picture tube device Pending JPS57121390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP648581A JPS57121390A (en) 1981-01-21 1981-01-21 Color picture tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP648581A JPS57121390A (en) 1981-01-21 1981-01-21 Color picture tube device

Publications (1)

Publication Number Publication Date
JPS57121390A true JPS57121390A (en) 1982-07-28

Family

ID=11639772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP648581A Pending JPS57121390A (en) 1981-01-21 1981-01-21 Color picture tube device

Country Status (1)

Country Link
JP (1) JPS57121390A (en)

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