Semitransparent electrophoretic information displays (EPID) empl

Details Semitransparent electrophoretic information displays (EPID) empl Semitransparent electrophoretic information displays (EPID) empl

1989-03-02

1991-08-20

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

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

359296, G09G 334

Patent

active

050418246

ABSTRACT:
An electrophoretic display includes a plurality of intersecting grid and cathode lines which are spaced one from the other by means of an insulating material. The grid and cathode lines are associated with an anode electrode which constitutes a planar glass plate having deposited thereon a thin layer of ITO or a similar metal. Interposed between the cathode and grid structure and the anode plate is a mesh electrode which is relatively of the same size as the anode plate. Control voltages are applied to the mesh structure and the anode electrode to further control particle propagation. The conventional anode structure may be entirely replaced with the mesh-like structure to provide an electrophoretic display which can be optimumly illuminated by back lighting.

REFERENCES:
patent: 4071430 (1978-01-01), Liebert
patent: 4196973 (1980-04-01), Hochstrate
patent: 4522472 (1985-06-01), Liebert et al.
patent: 4746917 (1988-05-01), Di Santo et al.
patent: 4833464 (1989-05-01), DiSanto et al.

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