JPS6418355A - Picture display device - Google Patents

Picture display device

Info

Publication number
JPS6418355A
JPS6418355A JP17520487A JP17520487A JPS6418355A JP S6418355 A JPS6418355 A JP S6418355A JP 17520487 A JP17520487 A JP 17520487A JP 17520487 A JP17520487 A JP 17520487A JP S6418355 A JPS6418355 A JP S6418355A
Authority
JP
Japan
Prior art keywords
picture
magnetic
board
display
erasure
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
JP17520487A
Other languages
Japanese (ja)
Inventor
Kimio Yatsunami
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP17520487A priority Critical patent/JPS6418355A/en
Priority to US07/218,991 priority patent/US4884146A/en
Priority to DE3851585T priority patent/DE3851585T2/en
Priority to EP88111325A priority patent/EP0299479B1/en
Publication of JPS6418355A publication Critical patent/JPS6418355A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To simultaneously drive a picture erasure means and a picture recording means and to quicken the rewrite of picture information by allowing the picture recording means, picture read means and picture erasure means to scan the picture display means simultaneously. CONSTITUTION:A board 1 is provided with a magnetic migration display board 3. In applying magnetic force to the surface sheet 14 by a magnetic recording head device 4, magnetic particles 12 are migrated to the surface to display a picture, and in applying the magnetic force to the rear sheet 13 by using a magnetic erasure head device 5, the particles are migrated to the rear face to erase the picture. The devices 4, 5 and a board reader 6 are provided incorporatedly to the same carriage 21 and the device 5 is provided on the rear sheet 13 of the display board at a location in preceding over the device 4 in the running direction at write. Thus, new picture information is written by the device just after the picture information described on the display board 3 by the preceding device 5 to rewrite the picture information in a short time.
JP17520487A 1987-07-14 1987-07-14 Picture display device Pending JPS6418355A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP17520487A JPS6418355A (en) 1987-07-14 1987-07-14 Picture display device
US07/218,991 US4884146A (en) 1987-07-14 1988-07-14 Image display system
DE3851585T DE3851585T2 (en) 1987-07-14 1988-07-14 Image display system.
EP88111325A EP0299479B1 (en) 1987-07-14 1988-07-14 Image display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17520487A JPS6418355A (en) 1987-07-14 1987-07-14 Picture display device

Publications (1)

Publication Number Publication Date
JPS6418355A true JPS6418355A (en) 1989-01-23

Family

ID=15992115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17520487A Pending JPS6418355A (en) 1987-07-14 1987-07-14 Picture display device

Country Status (1)

Country Link
JP (1) JPS6418355A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263557A (en) * 1984-06-11 1985-12-27 Oki Electric Ind Co Ltd Electronic blackboard device with automatic writing input
JPS6240862A (en) * 1985-08-19 1987-02-21 Canon Inc electronic display and recording device
JPS62132696A (en) * 1985-12-05 1987-06-15 キヤノン株式会社 image display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263557A (en) * 1984-06-11 1985-12-27 Oki Electric Ind Co Ltd Electronic blackboard device with automatic writing input
JPS6240862A (en) * 1985-08-19 1987-02-21 Canon Inc electronic display and recording device
JPS62132696A (en) * 1985-12-05 1987-06-15 キヤノン株式会社 image display device

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