Field emission array (FEA) addressed deformable light valve modulator
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United States of America Patent
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Feb 12, 2002
Grant Date -
N/A
app pub date -
Jul 10, 2000
filing date -
Jul 10, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A compact, high resolution, bright and long life modulator for projection displays, mates a field emission array (FEA) with a deformable light valve modulator (DLVM) of reflective operation in a thin vacuum package. The DLVM includes a continuous film mirror layer formed on or between one or more deformable layers on a transparent substrate. The field emitters (at least one per pixel) are driven to deliver primary electrons that strike and deposit a charge that produces electrostatic forces that locally deform the continuous film mirror layer. Because the mirror layer is a continuous film, i.e. not pixelated, the modulator resolution is limited only by the addressing resolution of the FEA. Mating the FEA and DLVM technologies also reduces the drive voltage requirements associated with typical FEA driven phosphor displays and scanned beam DLVMs thus improving their performance and extending the lifetime of each.
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