X-Y addressable electrophoretic display device with control elec

Details X-Y addressable electrophoretic display device with control elec X-Y addressable electrophoretic display device with control elec

1977-11-23

1980-05-13

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340716, 340763, 340785, 350362, G09F 932

Patent

active

042031060

ABSTRACT:
An electrophoretic display device in which an colloidal suspension of pigment particles is contained between a pair of electrodes, and means are provided in the structure of the electrodes of the cell for the establishment of a voltage threshold for the transport of pigment particles. This threshold permits the changing of the spatial distribution of pigment particles in specifically defined regions of the display cell.

REFERENCES:
patent: 3892568 (1975-07-01), Ota
patent: 3897137 (1975-07-01), Dobbins
patent: 4046456 (1977-09-01), Bonne
patent: 4071430 (1978-01-01), Liebert

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