发明名称 DISPLAY SHEET AND IMAGE DISPLAY DEVICE USING THE DISPLAY SHEET
摘要 PROBLEM TO BE SOLVED: To provide an inexpensive display sheet which is capable of displaying characters and images of electronic information and with which write once and read after and partial erasure are possible and a display device using the same. SOLUTION: The display sheet which is provided with at least many display pixels changed in their state by a magnetical effect and partially magnetizable and degaussable semi-rigid magnetic materials and contains particles and in which the display pixels contain particles which are rotatable and unidirectionally magnetized permanent magnets selectively coated with >=2 colors on the surfaces in capsules and the image display device using this display sheet.
申请公布号 JP2001175203(A) 申请公布日期 2001.06.29
申请号 JP19990353568 申请日期 1999.12.13
申请人 RICOH CO LTD 发明人 KAWASHIMA IKUE
分类号 G09F9/37;(IPC1-7):G09F9/37 主分类号 G09F9/37
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