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US 8,264,507 B2Granted
Gray scale drive sequences for pulse width modulated displays
AssigneeJasper Display Corp.
InventorsEdwin Lyle Hudson, David John Cowl
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Abstract
Methods, apparatus, and systems for generating drive sequences for pulse width modulated displays are described. A pulse width modulated signal that includes a drive sequence of temporal segments that are activated and deactivated to produce a desired gray scale. The temporal segments can be non-binary, non-equally weighted. The drive sequence can also include at least two of the temporal segments are least significant bit segments and the other segments are higher order segments.
Claims10
A projection display system comprising:
- an illumination source with optics to direct that illumination to a liquid crystal display component;
- projection optics to direct light from a liquid crystal display component to a display screen;
- and
- a liquid crystal display component system comprising a liquid crystal display component and display controller;
- wherein the display component is modulated by data from the display controller;
- wherein the data comprises a pulse set of non-binary, non-equal, weighted temporal segments based on the image data, assembled into a sequence;
- wherein selected segments are activated in accordance with a desired brightness level of pixels within the display;
- and
- wherein the sequence includes at least two least significant bit segments.
6 more elements
Dependencies are inferred from the claim text.