System and method for hinge memory mitigation

Details System and method for hinge memory mitigation System and method for hinge memory mitigation

2006-08-29

2008-03-25

Spector, David N. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S198100, C359S224200, C345S084000, C345S085000, C235S462490

Reexamination Certificate

active

07349146

ABSTRACT:
System and method for reducing failures due to hinge memory in a microdisplay display system. A preferred embodiment includes setting the state of each micromirror in a digital micromirror device based on an image being displayed, recording a usage history for the micromirrors, and providing a sequence of states to each micromirror when the display system is in an inactive mode. The sequence of states provided to a micromirror is based on the micromirror's usage history. The operation of the micromirrors while a display system containing the digital micromirror device is not in active use can help to reverse or eliminate hinge memory, thereby extending the lifetime of the digital micromirror device.

REFERENCES:
patent: 6204085 (2001-03-01), Strumpell et al.
patent: 6885493 (2005-04-01), Ljungblad et al.
patent: 7183618 (2007-02-01), Ishii
patent: 2005/0147750 (2005-07-01), Jacobs et al.

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