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Display apparatus with stiction reduction features

A viscous force, equipment technology, applied in the input/output of user/computer interaction, instruments, image reproducers using projection devices, etc., can solve problems such as inoperability

Inactive Publication Date: 2015-08-26
SNAPTRACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Static forces between the shutter and such surfaces may permanently or substantially permanently adhere the shutter to the surface, rendering it inoperable

Method used

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  • Display apparatus with stiction reduction features
  • Display apparatus with stiction reduction features
  • Display apparatus with stiction reduction features

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Embodiment Construction

[0047] Certain electromechanical systems (EMS) devices, such as nanoelectromechanical systems (NEMS), microelectromechanical systems (MEMS), or larger devices, include movable components configured to move in a plane parallel to one or more planar surfaces. Many EMS devices incorporating such components face the possibility of the components permanently sticking to other surfaces due to out-of-plane motion, thereby bringing the components into contact with other surfaces. This movement may occur due to a buildup of electrostatic charge acting on the movable component or due to mechanical shock or other forces. The movable component may be in contact with the substrate on which the EMS device is fabricated, other planar surfaces fabricated on the substrate above the EMS device, or the surface of an opposing substrate positioned adjacent to the movable component. In other cases, movable components of an EMS device that are generally positioned in a common plane can become entang...

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Abstract

A display apparatus includes a plurality of electromechanical systems (EMS) devices disposed on a first surface defined by a face of a substrate. Each EMS device includes a component which is movable in a plane that is substantially parallel to the first surface. The apparatus also includes a second surface positioned proximate to the substrate such that the plurality of EMS devices are located between the first surface and the second surface. In addition, each EMS device includes at least one anti-stiction projection positioned between the movable component and the second surface.

Description

[0001] Related applications [0002] This patent application claims priority to U.S. Utility Model Application No. 13 / 686,464, filed November 27, 2012, entitled "DISPLAY APPARATUS WITH STICTION REDUCTION FEATURES" , and said US utility model application is assigned to the assignee of the present invention and is hereby expressly incorporated herein by reference. technical field [0003] The present invention relates to electromechanical systems (EMS). In particular, the present invention relates to mechanisms for avoiding static viscous forces in EMS displays. Background technique [0004] Some displays are designed to produce images by using shutters to modulate light. These shutters are supported and actuated by a shutter assembly that includes, in addition to the shutters, actuators for actuating the shutters and anchors for supporting the shutters above the substrate. The shutters may be in contact with other surfaces for various reasons. Static forces between the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20H04N9/31G02B26/08
CPCG06F3/01G02B26/0841G06F15/00G02B26/02G02B26/023
Inventor 乔伊·H·吴贾斯柏·L·史汀尤金·E·非克凯特·尼·奇列里格蒂莫西·J·布罗斯尼汉理查德·S·佩恩
Owner SNAPTRACK
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