Display apparatus utilizing a thermally color reversible display

Details Display apparatus utilizing a thermally color reversible display Display apparatus utilizing a thermally color reversible display

1981-09-14

1984-04-10

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

350353, 350354, G09G 322

Patent

active

044424299

ABSTRACT:
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.

REFERENCES:
patent: 3090687 (1963-05-01), Berman
patent: 3219993 (1965-11-01), Schwertz
patent: 4093344 (1978-06-01), Damen et al.
patent: 4142782 (1979-03-01), O'Brian
patent: 4169661 (1979-10-01), Yamada et al.

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