Title:
MAGNETIC-MATERIAL REVERSE DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2001/050188
Kind Code:
A1
Abstract:
A magnetic-material reverse display panel comprising a dispersion liquid having a yield value, mainly consisting of fine-particulate magnetic display elements different in color on an S-pole side surface and on an N-pole side surface, a dispersion medium and a thickener, and sealed in a storing body consisting of a transparent display member and a rear-surface member, characterized in that the rear-surface member has a magnetic flux concentration member consisting of a ferromagnetic member, and the magnetic flux concentration member acts, when a display changing magnet approaches the front side of the panel, to intensify a magnetic field generated by the display changing magnet and put the magnetic field direction to be perpendicular to the rear-surface member. The magnetic flux concentration member can improve the sharpness of display/erasure on the magnetic-material reverse display panel and a display contrast.
Inventors:
YOKOYAMA TAKEO (JP)
OTA INEO (JP)
IKEDA MASAHIKO (JP)
MISAWA HIDEKI (JP)
OTA INEO (JP)
IKEDA MASAHIKO (JP)
MISAWA HIDEKI (JP)
Application Number:
PCT/JP2000/009429
Publication Date:
July 12, 2001
Filing Date:
December 28, 2000
Export Citation:
Assignee:
PILOT KK (JP)
YOKOYAMA TAKEO (JP)
OTA INEO (JP)
IKEDA MASAHIKO (JP)
MISAWA HIDEKI (JP)
YOKOYAMA TAKEO (JP)
OTA INEO (JP)
IKEDA MASAHIKO (JP)
MISAWA HIDEKI (JP)
International Classes:
G09F9/37; (IPC1-7): G02F1/17; G09F9/37
Foreign References:
| JPS60107689A | 1985-06-13 | |||
| JPH08197877A | 1996-08-06 | |||
| US4368952A | 1983-01-18 | |||
| US3938263A | 1976-02-17 | |||
| JPH1115412A | 1999-01-22 |
Attorney, Agent or Firm:
Tanaka, Takahide (Hacchobori 3-chome Chuo-ku, Tokyo, JP)
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