Scrolling liquid crystal spatial light modulator

Details Scrolling liquid crystal spatial light modulator Scrolling liquid crystal spatial light modulator

1986-04-08

1989-03-21

Hecker, Stuart N.

Static information storage and retrieval

Radiant energy

Liquid crystal

365233, 350332, 350335, 340765, 340784, 377 67, 377 78, G11C 1304, G11C 1930, G02F 113, G09G 336

Patent

active

048150355

ABSTRACT:
A device, and a corresponding method for its operation, for converting binary electrical signals into optical form and for scrolling the optical signals across an array of liquid crystal cells. The device in its two-dimensional form includes an array of rows of liquid crystal cells of the ferroelectric smectic type, input circuits for applying binary signals to an input cell in each row, and a three-phase clocking circuit connected to the remaining cells in each row, to propagate the states of the input cells rapidly into successive cells across the array, in the same manner as a shift register, but with the signals being stored in optical form for ease of processing in optical processing apparatus.

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Noel A. Clark & Sven T. Lagerwall, "Submicrosecond Bistable Electro Optic Switching in Liquid Crystals," Appl. Phys. Lett., 36(11), pp. 899-901, 1 Jun. 1980.

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