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AssigneeOki Electric Industry Co., Ltd.
InventorsShintaro Kotani, Ichimatsu Abiko, Takashi Arae, Mio Chiba, Tomoo Araki, Hiromasa Kanno
Estimating the term…
Disclosed is an erasable display apparatus including a heat-sensitive medium 1 having a hysteresis effect relative to temperature change. This display apparatus comprises an endless broad-width heat-sensitive display medium 1, driving means 2 for rotating and transferring the heat-sensitive display medium 1, a first heating member 3 for thermally recording information to be displayed on the heat sensitive display medium 1, a plane transparent panel heater 4 disposed on the back of the display surface contiguously to the heat-sensitive display medium 1, lighting means 5 disposed on the back of the transparent heat-insulating member 4 to illuminate the display surface, a color filter 6 disposed in front of the display surface and cooling means 7 for erasing the information recorded on the heat-sensitive display medium 1 after display. By this display apparatus, a display can be accomplished at a high density and the displayed picture quality can be enhanced. This display apparatus can be used repeatedly at a high frequency.
A display apparatus comprising a heat-sensitive medium of an endless, broad-width belt-like shape having a hysteresis effect between the temperature and color, driving means for rotating and transferring said heat-sensitive display medium, a first heating member comrpising a plurality of heating elements aligned in the lateral direction of the heat-sensitive display medium, a plane transparent panel heater located on the back of the display surface contiguously to the heat-sensitive display medium, lighting means disposed on the back of the transparent heat-insulating member to illuminate the display surface, a color filter disposed in front of the display surface, and cooling means for cooling the heat-sensitive display medium after display, and a second heating member disposed in the passage of the heat-sensitive display medium between the transparent panel heater and the cooling means, the entire heat-sensitive medium being uniformly discolored by said second heating member to erase said information recorded on the heat-sensitive display medium.
Dependencies are inferred from the claim text.