JPS5620388A - Picture display unit - Google Patents

Picture display unit

Info

Publication number
JPS5620388A
JPS5620388A JP9647679A JP9647679A JPS5620388A JP S5620388 A JPS5620388 A JP S5620388A JP 9647679 A JP9647679 A JP 9647679A JP 9647679 A JP9647679 A JP 9647679A JP S5620388 A JPS5620388 A JP S5620388A
Authority
JP
Japan
Prior art keywords
deflecting
picture
fluorescent screen
crt
fluorescent
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
JP9647679A
Other languages
Japanese (ja)
Inventor
Akihiko Doke
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 JP9647679A priority Critical patent/JPS5620388A/en
Publication of JPS5620388A publication Critical patent/JPS5620388A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
    • H04N3/32—Velocity varied in dependence upon picture information

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To prolong the life of CRT greatly by preventing a fluorescent display screen from deteriorating by finely changing a display picture in position by supplying a deflecting circuit with an auxiliary deflecting signal of extremely small amplitude and a minute frequency. CONSTITUTION:Still picture signal Vs is input to picture signal input terminal 1 and a picture is displayed on fluorescent screen 4 of CRT2. In this state, two output sine waves SH and SV from auxiliary deflecting circuit 11 are adjusted to 0.01Hz in frequency and amplitudes about 1/100-1/500 those of horizontal and vertical deflecting currents IH and IV and supplied to horizontal and vertical deflecting circuits 7 and 8, so that the display picture on fluorescent screen 4 will move along a circle on fluorescent screen 4 at a slow speed, i.e. 0.01 rotation/second. Such a moving speed can not be sensed through normal observation, so that there will be no obstacle to the observation. Consequently, since parts where electron beam B strike at any time are dispersed, no burning occurs and the life of CRT can be prolonged.
JP9647679A 1979-07-27 1979-07-27 Picture display unit Pending JPS5620388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9647679A JPS5620388A (en) 1979-07-27 1979-07-27 Picture display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9647679A JPS5620388A (en) 1979-07-27 1979-07-27 Picture display unit

Publications (1)

Publication Number Publication Date
JPS5620388A true JPS5620388A (en) 1981-02-25

Family

ID=14166092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9647679A Pending JPS5620388A (en) 1979-07-27 1979-07-27 Picture display unit

Country Status (1)

Country Link
JP (1) JPS5620388A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03501982A (en) * 1987-10-13 1991-05-09 モル　フィリップ Method and apparatus for manufacturing parts of clothing or individual pieces thereof
JPH04263653A (en) * 1990-11-21 1992-09-18 General Motors Corp <Gm> Cloth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03501982A (en) * 1987-10-13 1991-05-09 モル　フィリップ Method and apparatus for manufacturing parts of clothing or individual pieces thereof
JPH04263653A (en) * 1990-11-21 1992-09-18 General Motors Corp <Gm> Cloth

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