JPS562793A - Display unit having color cathode-ray tube - Google Patents

Display unit having color cathode-ray tube

Info

Publication number
JPS562793A
JPS562793A JP7785579A JP7785579A JPS562793A JP S562793 A JPS562793 A JP S562793A JP 7785579 A JP7785579 A JP 7785579A JP 7785579 A JP7785579 A JP 7785579A JP S562793 A JPS562793 A JP S562793A
Authority
JP
Japan
Prior art keywords
screen
oscillator
mirror
beam scanning
scanning face
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
JP7785579A
Other languages
Japanese (ja)
Other versions
JPS6238915B2 (en
Inventor
Nobutoshi Kihara
Minoru Morio
Tadahiko Nakamura
Hidehiko Okada
Yoshimaru Maruno
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP7785579A priority Critical patent/JPS562793A/en
Publication of JPS562793A publication Critical patent/JPS562793A/en
Publication of JPS6238915B2 publication Critical patent/JPS6238915B2/ja
Granted 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
    • H04N9/18—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals
    • H04N9/20—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals with more than one beam in a tube

Landscapes

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

Abstract

PURPOSE:To improve resolution of a color CRT, by providing a means, which deflects auxiliarily a beam so that the beam may reciprocate on the beam scanning face, and a means which corrects visually vibration of the screen dependent upon the means above. CONSTITUTION:A auxiliary deflecting means which deflects auxiliarily three beams so that the beam scanning face may reciprocate in the approximately horizontal direction for fluorescent material layer PH and mask MS of color CRT1 is constituted by horizontal deflecting coil 3, horizontal deflecting circuit 4, and triangular wave oscillator 5. For example, 2Hz is selected as the oscillation frequency of oscillator 5, and an amplitude where the beam scanning face is vibrated in a range of + or -3.75L (L is the pitch of slits of mask MS) horizontally for layer PH is selected as the amplitude of the frequency above. A plane mirror is fitted to the diaphragm of speaker 8, and the output of oscillator 5 is supplied to speaker 8 to vibrate mirror 7 in parallel as shown in 7'. Thus, vibration of the screen is corrected visually when the reflection image of the screen of CRT1 is seen from the direction at angle 45 deg. for mirror 7.
JP7785579A 1979-06-20 1979-06-20 Display unit having color cathode-ray tube Granted JPS562793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7785579A JPS562793A (en) 1979-06-20 1979-06-20 Display unit having color cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7785579A JPS562793A (en) 1979-06-20 1979-06-20 Display unit having color cathode-ray tube

Publications (2)

Publication Number Publication Date
JPS562793A true JPS562793A (en) 1981-01-13
JPS6238915B2 JPS6238915B2 (en) 1987-08-20

Family

ID=13645668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7785579A Granted JPS562793A (en) 1979-06-20 1979-06-20 Display unit having color cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS562793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05188896A (en) * 1991-05-20 1993-07-30 Hughes Aircraft Co Image reinforcing system in color video display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05188896A (en) * 1991-05-20 1993-07-30 Hughes Aircraft Co Image reinforcing system in color video display

Also Published As

Publication number Publication date
JPS6238915B2 (en) 1987-08-20

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