Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1992-01-27
1994-06-28
Oberley, Alvin E.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 89, G09G 326
Patent
active
053251067
ABSTRACT:
A scrollable spatial light modulator--or SLM--provides non-destructively transfer and display of an analog signal, which may include multiple levels of gray scale information, for high speed analog optical processing. Each pixel in the scrollable SLM consists of a metal-oxide-semiconductor--or MOS--transistor and four MOS capacitors in a four-phase charge-coupled device--or CCD--array. Two of the MOS capacitors in each pixel are used for charge storage while the other two are used to implement charge transfer. An MOS transistor used to control the gate of one of the charge storage MOS capacitors is clocked to float only when the charge signal is being stored therein and then drives a pixel of the liquid crystal display, such as a ferroelectric liquid crystal display to encode a frame of data onto a light beam as an image.
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Anderson Terry J.
Block Robert B.
Hoch Jr. Karl J.
Liang Regina
Northrop Corporation
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