DISPLAY DEVICE AND ITS DRIVING METHOD

Japanese Patent JPH02183222

A

PURPOSE:To follow up an unnecessary motion picture in an erasing process and a fast image variation by putting picture elements back into an erasure state before a 3rd image plane scan when picture elements selected by a 1st image plane scan are held until a 2nd image plane scan and not selected for the 2nd image plane scan. CONSTITUTION:A display medium has a laser absorption layer 4 irradiated with irradiation light from a semiconductor laser to perform thermal writing to a display layer 6. Then the picture elements selected by the 1st image plane scan change from the erasure state to a write state and the write state is almost held in the time from the 1st image plane scan to the next 2nd image plane scan. Then when no picture elements are selected in the 2nd image plane scan, the write state disappears and the picture elements are held almost in the erasure state in the time between the 2nd image plane scan and 3rd image plane scan. Consequently the motion image and fast image variation are enabled by the display medium which uses a high polymer compound for the display layer.

YOSHINAGA KAZUO
ONISHI TOSHIICHI
KAI TAKASHI
EGUCHI GAKUO
SATO KOICHI
KANEKO SHUZO

JP202289A

July 17, 1990

January 10, 1989

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CANON KK

G02F1/13; G02F1/133; G09G3/36; (IPC1-7): G02F1/13; G02F1/133; G09G3/36

Yoshio Toyota

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