JPS5512664A - Picture image indicator - Google Patents

Picture image indicator

Info

Publication number
JPS5512664A
JPS5512664A JP8558078A JP8558078A JPS5512664A JP S5512664 A JPS5512664 A JP S5512664A JP 8558078 A JP8558078 A JP 8558078A JP 8558078 A JP8558078 A JP 8558078A JP S5512664 A JPS5512664 A JP S5512664A
Authority
JP
Japan
Prior art keywords
section
electrodes
overlapped
picture quality
step wave
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
JP8558078A
Other languages
Japanese (ja)
Other versions
JPS5832457B2 (en
Inventor
Norio Aoki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8558078A priority Critical patent/JPS5832457B2/en
Publication of JPS5512664A publication Critical patent/JPS5512664A/en
Publication of JPS5832457B2 publication Critical patent/JPS5832457B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE: To improve the picture quality of planar CRT through addition of simple circuitry for controlling the voltage applied on a plural pair of deflecting electrodes such that the abrupt voltage change is emphasized.
CONSTITUTION: The electron beam from thermion discharging source is passed through selective electrodes then deflected by plural pairs of vertical and horizontal deflection electrodes and impinged against a fluorescent board to emit light. Pulse voltages 18a, 19a are applied on the abrupt voltage changing sections 17a, 18a in the direction to emphasise the changing. The indicating area corresponding the uppermost section of step wave 17 is overlapped with the area 21 corresponding the lowermost section of next period step wave 17, and when adjusting said overlapped section the picture quality can be improved.
COPYRIGHT: (C)1980,JPO&Japio
JP8558078A 1978-07-12 1978-07-12 image display device Expired JPS5832457B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8558078A JPS5832457B2 (en) 1978-07-12 1978-07-12 image display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8558078A JPS5832457B2 (en) 1978-07-12 1978-07-12 image display device

Publications (2)

Publication Number Publication Date
JPS5512664A true JPS5512664A (en) 1980-01-29
JPS5832457B2 JPS5832457B2 (en) 1983-07-13

Family

ID=13862739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8558078A Expired JPS5832457B2 (en) 1978-07-12 1978-07-12 image display device

Country Status (1)

Country Link
JP (1) JPS5832457B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208048A (en) * 1981-06-18 1982-12-21 Matsushita Electric Ind Co Ltd Image display apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208048A (en) * 1981-06-18 1982-12-21 Matsushita Electric Ind Co Ltd Image display apparatus

Also Published As

Publication number Publication date
JPS5832457B2 (en) 1983-07-13

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