JPS57180287A - Color shift compensating device for color cathode ray tube - Google Patents

Color shift compensating device for color cathode ray tube

Info

Publication number
JPS57180287A
JPS57180287A JP6404081A JP6404081A JPS57180287A JP S57180287 A JPS57180287 A JP S57180287A JP 6404081 A JP6404081 A JP 6404081A JP 6404081 A JP6404081 A JP 6404081A JP S57180287 A JPS57180287 A JP S57180287A
Authority
JP
Japan
Prior art keywords
color
compensation
electron
electron beams
compensate
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
JP6404081A
Other languages
Japanese (ja)
Other versions
JPH0147957B2 (en
Inventor
Yasuharu Kamata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6404081A priority Critical patent/JPS57180287A/en
Publication of JPS57180287A publication Critical patent/JPS57180287A/en
Publication of JPH0147957B2 publication Critical patent/JPH0147957B2/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
    • H04N9/28—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 compensate dynamic convergence easily with good accuracy, by providing a dynamic convergence compensation magnet having 4 sets of electromagnet coils at an electron gun, and adjusting the convergence with a current required for compensation stored in a memory. CONSTITUTION:A dynamic convergence compensation magnet 100 connected to a color shift compensation circuit 200 is arranged to an electron gun of a color CRT1 locating the electron gun in in-line. The magnet 100 is located with the 1st electromagnet coil 101 deflecting electron beams from the electron guns at both ends horizontally and mutually reversely, 2nd electromagnet coil 102 deflecting electron beams vertically and mutually reversely, and 3rd and 4th electromagnet coils 103 and 104 deflecting the electron beams horizontally and vertically toward the same direction. A current required for compensation stored in a memory provided in the circuit 200 flows to the coils 101-104 to compensate the position shift of the electron beams arriving on the display surface, allowing to compensate the dynamic convergence with good accuracy.
JP6404081A 1981-04-30 1981-04-30 Color shift compensating device for color cathode ray tube Granted JPS57180287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6404081A JPS57180287A (en) 1981-04-30 1981-04-30 Color shift compensating device for color cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6404081A JPS57180287A (en) 1981-04-30 1981-04-30 Color shift compensating device for color cathode ray tube

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP24411190A Division JPH03201694A (en) 1990-09-17 1990-09-17 Color cathode ray tube device and color slurring correcting method for the same

Publications (2)

Publication Number Publication Date
JPS57180287A true JPS57180287A (en) 1982-11-06
JPH0147957B2 JPH0147957B2 (en) 1989-10-17

Family

ID=13246600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6404081A Granted JPS57180287A (en) 1981-04-30 1981-04-30 Color shift compensating device for color cathode ray tube

Country Status (1)

Country Link
JP (1) JPS57180287A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280191A (en) * 1985-06-04 1986-12-10 Mitsubishi Electric Corp Convergence subadjusting device
JPH03201694A (en) * 1990-09-17 1991-09-03 Hitachi Ltd Color cathode ray tube device and color slurring correcting method for the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145936A (en) * 1974-10-17 1976-04-19 Hitachi Ltd
JPS55163988A (en) * 1979-06-07 1980-12-20 Nippon Hoso Kyokai <Nhk> Digital convergence unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145936A (en) * 1974-10-17 1976-04-19 Hitachi Ltd
JPS55163988A (en) * 1979-06-07 1980-12-20 Nippon Hoso Kyokai <Nhk> Digital convergence unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280191A (en) * 1985-06-04 1986-12-10 Mitsubishi Electric Corp Convergence subadjusting device
JPH03201694A (en) * 1990-09-17 1991-09-03 Hitachi Ltd Color cathode ray tube device and color slurring correcting method for the same

Also Published As

Publication number Publication date
JPH0147957B2 (en) 1989-10-17

Similar Documents

Publication Publication Date Title
US4257023A (en) Deflecting device for cathode-ray tube
ES8204260A1 (en) Color TV display system
ES477438A1 (en) Deflection unit for color television display tubes
JPS57180287A (en) Color shift compensating device for color cathode ray tube
KR930002655B1 (en) Electron gun having electrodes and color cathode-ray tube
EP0254338B1 (en) Colour picture tube with astigmatism correction means
KR850005199A (en) Image correction device of in-line color water tube
US3534208A (en) Cathode ray tube having three in-line guns and center beam convergence shield modifying center beam raster size
BR9305487A (en) Deflection device for use in a color cathode ray tube
US2806164A (en) Beam convergence apparatus for tri-color kinescopes
US2725496A (en) Magnetic deflecting means for cathode ray tubes
GB1254064A (en) Electron beam correction apparatus for a color picture tube
KR890010997A (en) Deflection yoke for cathode ray tube
KR950001845A (en) Electronic deflection yoke for colored cathode ray tubes
KR910007739B1 (en) Revising method for a biased error of electron beam for crt
KR100327400B1 (en) Deflection yoke for cathode ray tube
JPS56162455A (en) Color picture tube device
JP2716091B2 (en) In-line color picture tube device
JPS6412448A (en) Deflection york
KR930001418Y1 (en) Distortion correction apparatus of deflection yoke
JPH0963508A (en) Deflection device
TH10399EX (en) Deflection yoke that compensates for non-convergence in the same position Of the number of raster electrons in the horizontal center of the screen
KR940027561U (en) Magnet body with increased flux vector component for adjusting electron beam path in cathode ray tube (CRT) with electron gun
JPS52149028A (en) Color braun tube
JPS5784683A (en) Picture tube device