Fault tolerant light modulator display system
First Claim
1. A display system attached to a fixed substrate, the display system comprisinga two-dimensional light modulator array having a plurality of light modulators arranged in a first row and a second row, with the first row at a first row position with respect to the fixed substrate and the second row at a second row position with respect to the fixed substrate, anda movable element attaching the two-dimensional light modulator array to the fixed substrate, with the movable element moving the first row from its first row position to substantially occupy the second row position.
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Accused Products
Abstract
A display system attached to a fixed substrate includes a two-dimensional light modulator array having a plurality of light modulators arranged in a first row and a second row, with the first row at a first row position with respect to the fixed substrate and the second row at a second row position with respect to the fixed substrate. A mechanically movable element such as a rotary stepper or piezovibrator attaches the two-dimensional light modulator array to the fixed substrate. The movable element is operated to move the first row from its first row position to substantially occupy the second row position. In conjunction with various image processing deblurring and rescaling techniques, this effectively distributes light between adjacent rows to compensate for failure of one or more light modulators in a row.
114 Citations
14 Claims
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1. A display system attached to a fixed substrate, the display system comprising
a two-dimensional light modulator array having a plurality of light modulators arranged in a first row and a second row, with the first row at a first row position with respect to the fixed substrate and the second row at a second row position with respect to the fixed substrate, and a movable element attaching the two-dimensional light modulator array to the fixed substrate, with the movable element moving the first row from its first row position to substantially occupy the second row position.
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7. A fault tolerant display system comprising
a fixed substrate, a light source for producing a variable intensity light beam, a two-dimensional light modulator array positioned to intercept the variable intensity light beam from the light source, the two-dimensional light modulator array having a plurality of light modulators arranged in a first row and a second row, with the first row at a first row position with respect to the fixed substrate and the second row at a second row position with respect to the fixed substrate, a movable element attaching the two-dimensional light modulator array to the fixed substrate, with the movable element moving the first row from its first row position to substantially occupy the second row position, and a light modulator failure compensation system for correcting for failure of at least one of the plurality of light modulators, the light modulator failure compensation system having an image rescaling module to vary apparent light modulator display intensity, and a light source intensity control for increasing intensity of the variable intensity light beam.
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13. A fault tolerant display system comprising
a light modulator array having a plurality of light modulators, each light modulator having a defined length, the light modulator array being movable with respect to a fixed substrate, a movable element attaching the light modulator array to the fixed substrate, with the movable element periodically displacing the light modulator array through at least the defined length of each of the light modulators with a frequency exceeding about 1/10 of a second, and a light modulator failure compensation system for correcting for failure of at least one of the plurality of light modulators, the light modulator failure compensation system having an image shifting module for shifting image position in coordination with periodic displacement of the light modulator array, and a rescaling module to reduce apparent light modulator display intensity for at least some light modulators based on a location of failed light modulators.
Specification