Method and apparatus to reduce or eliminate stiction and image retention in interferometric modulator devices
First Claim
Patent Images
1. A display element comprising:
- a plurality of interferometric modulator devices configured in a matrix forming a plurality of rows and columns, each interferometric modulator device comprisinga movable reflective layer comprising two opposite edges that are each supported by a rail and two opposing free edges; and
a plurality of posts configured to support the movable reflective layer, the plurality of posts being spaced apart to define post spacing distances between adjacent posts positioned along an axis parallel to one of the rails, wherein the post spacing distance between adjacent posts along the axis and closest to each free edge is smaller than the post spacing distance between a plurality of other adjacent posts along the axis.
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Abstract
Method and apparatus to reduce or eliminate stiction and image retention in interferometric display devices are disclosed. In some embodiments, a display element comprises a plurality of interferometric modulator devices configured in a matrix, each interferometric modulator device having a movable reflective layer and a plurality of supporting posts, the plurality of posts defining a post spacing distance in at least one direction that is greater for one or more interferometric modulator devices disposed adjacent to an edge of the display element than one or more interferometric modulator devices disposed nonadjacent to an edge of the display element.
273 Citations
21 Claims
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1. A display element comprising:
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a plurality of interferometric modulator devices configured in a matrix forming a plurality of rows and columns, each interferometric modulator device comprising a movable reflective layer comprising two opposite edges that are each supported by a rail and two opposing free edges; and a plurality of posts configured to support the movable reflective layer, the plurality of posts being spaced apart to define post spacing distances between adjacent posts positioned along an axis parallel to one of the rails, wherein the post spacing distance between adjacent posts along the axis and closest to each free edge is smaller than the post spacing distance between a plurality of other adjacent posts along the axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A display element comprising:
a plurality of interferometric modulator devices configured in a matrix forming a plurality of rows and columns, each interferometric modulator device comprising a movable reflective layer comprising two opposite edges that are each supported by a rail and two opposing free edges, and a plurality of posts configured to support the movable reflective layer, the plurality of posts being spaced apart to define post spacing distances between adjacent posts positioned along an axis parallel to one of the rails, wherein an outer post spacing distance between two adjacent outer posts along the axis is smaller than an inner post spacing distance between two adjacent inner posts along the axis, where the outer posts are closer to a free edge than the inner posts. - View Dependent Claims (16, 17, 18, 19, 20, 21)
Specification