Display control apparatus having a plurality of driving voltage

Details Display control apparatus having a plurality of driving voltage Display control apparatus having a plurality of driving voltage

1988-03-30

1990-10-09

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

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

340805, 350331T, G09G 336

Patent

active

049623761

ABSTRACT:
A display control unit is combined with a display device including a display element and electrodes for applying an electric field to the display element. The display control unit includes a control unit for changing and setting a plurality of voltages applied to the electrodes such that one of the plurality of voltages is fixed, and differences between the fixed voltage and other voltages are kept at a predetermined ratio.

REFERENCES:
patent: 4278325 (1981-07-01), Kondo et al.
patent: 4763992 (1988-08-01), Takada et al.
patent: 4800382 (1989-01-01), Okada et al.

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