MECHANICAL RELAXATION TRACKING AND RESPONDING IN A MEMS DRIVER
First Claim
1. A device for driving a microelectromechanical system (MEMS) device in a display, said MEMS device having a movable reflective layer, comprising:
- a sensing unit configured to generate information related to frame rate of the movable reflective layer of at least one MEMS device, and to generate information related to one or more of time and environmental exposure; and
a driver circuit configured to apply voltages to drive said at least one MEMS device, said voltages being based at least in part on said information.
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Accused Products
Abstract
The invention comprises systems and methods for adjusting a driving voltage based on relaxation information of a movable reflective layer of an interferometric modulator. In one example, a device for driving a MEMS device having a movable reflective layer comprises a sensing unit configured to generate information related to one or more of time, environmental exposure, and frame rate of a movable reflective layer of at least one MEMS device, and a driver circuit configured to apply voltages to drive said at least one MEMS device, said voltages being based at least in part on said information.
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Citations
30 Claims
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1. A device for driving a microelectromechanical system (MEMS) device in a display, said MEMS device having a movable reflective layer, comprising:
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a sensing unit configured to generate information related to frame rate of the movable reflective layer of at least one MEMS device, and to generate information related to one or more of time and environmental exposure; and a driver circuit configured to apply voltages to drive said at least one MEMS device, said voltages being based at least in part on said information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of controlling a driving voltage of a microelectromechanical system (MEMS) device having a movable reflective layer, the method comprising:
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generating information related to frame rate of the movable reflective layer of a MEMS device; generating information related to one or more of time and environmental exposure; and driving said MEMS device with a voltage based at least in part on said generated information. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A control device for driving at least one microelectromechanical (MEMS) device in a display, said at least one MEMS device having a movable reflective layer, comprising:
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means for generating information related to frame rate of the movable reflective layer of at least one MEMS device means for generating information related to one or more of time and environmental exposure; and means for driving said at least one MEMS device by providing voltages based at least in part on said information. - View Dependent Claims (24, 25)
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26-28. -28. (canceled)
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29. A method of driving a MEMS device, comprising reducing bias voltage according to a pre-defined time schedule based on a predicted relaxation of a movable reflective layer of the MEMS device.
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30. The method of claim 30, wherein said reducing is performed is a step-wise manner.
Specification