Light modulation device with matrix addressing

Details Light modulation device with matrix addressing Light modulation device with matrix addressing

1991-04-18

1992-01-07

LaRoche, Eugene R.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359 54, 359230, G02F 103, G02F 113

Patent

active

050784790

ABSTRACT:
A light modulation device with matrix addressing including a matrix of cells. Each cell has two flaps fixed to a substrate by flexible attachments, a control electrode, a row electrode and a maintenance electrode. The flaps can adopt two stable positions through the application of suitable voltages to the row and maintenance electrodes. The flaps are activated by the application of a control voltage to the electrode at the same time as the voltage on the row electrode is returned to zero. The arrangement of the electrodes together with the existence of a maintenance electrode, which is common to all the flaps on the matrix, allows matrix addressing to be achieved.

REFERENCES:
patent: 4725832 (1988-02-01), Lorteije et al.
patent: 4740785 (1988-04-01), Stroomer et al.

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