Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1988-10-20
1991-02-26
Oberley, Alvin E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340782, 340767, 340793, G09G 330
Patent
active
049965239
ABSTRACT:
In the present invention a matrix array of organic electroluminescent storage display elements along with row and column selection circuitry are used to select the particular display elements within the matrix to be illuminated. Interposed between the column and row selection electronics are a plurality of memory cells receiving as inputs bit values that correspond to the desired intensity requested from a display element. The memory cells output activation signals which drive corresponding MOS switches each of which in turn is parallel connected as part of a current driver source feeding a single display element. Activation of one or more of the MOS switches provides a controlled amount of current to be applied to the display element to in turn provide a related amount of light from the display element.
REFERENCES:
patent: 3696393 (1972-10-01), McDonald
patent: 3740570 (1973-06-01), Kaelin et al.
patent: 4688030 (1987-08-01), Uemura et al.
Tannas, "Flat-Panel Displays and CRTs", Van Nostrand Reinhold Company, New York, 1985, pp. 16-17.
Bell Cynthia S.
Gaboury Michael J.
Dugas Edward
Eastman Kodak Company
Oberley Alvin E.
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