Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electron beam excitation
Reexamination Certificate
2006-07-11
2006-07-11
Louie, Wai-Sing (Department: 2814)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electron beam excitation
C349S033000, C349S037000, C349S041000, C349S054000, C257S057000, C257S059000, C257S072000, C257S083000, C257S290000, C257S461000, C257S462000
Reexamination Certificate
active
07075593
ABSTRACT:
A spatial light modulator contains a substrate (90), a plurality of overlying liquid-crystal cells (202), a plurality of respectively corresponding transistors (204), an electron-beam system (400and500), and a control component (203). Each transistor is in electrical communication with the corresponding liquid-crystal cell. The electron-beam system bombards each transistor with electrons that cause it to be selectively in (i) a non-conductive condition in which its channel-region electric field is substantially insufficient for conduction or (ii) a conductive condition in which its channel-region electric field is sufficient for at least partial conduction. During selected time periods when a transistor is in its conductive condition, the control component provides the transistor with a control signal that results in the polarization direction of specified light being selectively rotated in passing through the corresponding liquid-crystal cell.
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Haven Duane A.
Mutchler David K.
Vidal Marcial
Ha Nathan W.
Louie Wai-Sing
Meetin Ronald J.
Video Display Corporation
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