Electrostatic pixel module capable of providing size variable pi

Details Electrostatic pixel module capable of providing size variable pi Electrostatic pixel module capable of providing size variable pi

1987-09-11

1989-05-16

Yusko, Donald J.

Communications: electrical

Land vehicle alarms or indicators

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

34081504, 340805, G09G 334

Patent

active

048313718

ABSTRACT:
An electrostatic pixel module capable of providing size-variable pixels for use in an electrostatic display board. The module is made up of a known electrostatic display elements arranged so as to form a substantially square-faced pixel unit consisting of four substantially square-faced sub-pixel units. The four sub-pixel units, when operated collectively, provide a larger pixel; and when operated independently, provide four smaller pixels.

REFERENCES:
patent: 4229732 (1980-10-01), Hartstein et al.
patent: 4468663 (1984-08-01), Kalt
patent: 4741599 (1988-05-01), Togo et al.

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