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Display device with narrow gap electrostatic actuator

A technology of electrostatic actuators and display devices, which is applied in the direction of electrostatic motors, electrostatic generators/motors, piezoelectric devices/electrostrictive devices, etc., and can solve the problems of accumulated internal stress of beams, slow displays, power consumption, etc.

Inactive Publication Date: 2017-03-15
SNAPTRACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, some manufacturing processes do not cause the beam to accumulate enough internal stress to produce this bending
Therefore, additional voltage may be required to actuate such actuators, resulting in a more power hungry and slower display

Method used

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  • Display device with narrow gap electrostatic actuator
  • Display device with narrow gap electrostatic actuator
  • Display device with narrow gap electrostatic actuator

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Embodiment Construction

[0033] The following description is directed to certain embodiments for the purpose of describing the innovative aspects of this invention. However, one of ordinary skill in the art should readily appreciate that the teachings herein can be applied in many different ways. The described implementations may be practiced in any device, apparatus or system that can be configured to display images, whether in motion (eg, video) or static (eg, still images), and whether textual, graphical or pictorial. More particularly, it is contemplated that the described implementations may be included in or associated with a variety of electronic devices such as (but not limited to): mobile telephones, multimedia Internet-enabled cellular telephones, mobile TV receivers, wireless devices, smart phones, Devices, Personal Data Assistants (PDAs), Wireless Email Receivers, Handheld or Laptop Computers, Netbooks, Notebook Computers, Smartbooks, Tablet Computers, Printers, Copiers, Scanners, Fax Dev...

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Abstract

This disclosure provides systems, methods and apparatus for incorporating tip-gap adjustment features (TGAF) in actuators of shutter assemblies. The TGAF are incorporated into a drive beam of the actuator during the formation of the shutter assembly over a mold. The TGAF are configured such that they develop a mechanical stress or stress gradient. When the shutter assembly is released from the mold, the stress or stress gradient in the TGAF bend the drive beam such that a tip-gap between the drive beam and a load beam of the actuator is reduced. The reduced tip-gap, in turn, reduces an actuation voltage needed to actuate the shutter assembly.

Description

[0001] Related applications [0002] This patent application claims U.S. Utility Application No. 13 / 2013, entitled "Display Apparatus with Narrow Gap Electrostatic Actuators," filed March 13, 2013 and is assigned to its assignee and is hereby expressly incorporated by reference herein. Priority of 800, 151. technical field [0003] This invention relates to the field of imaging displays, and in particular to imaging displays employing electrostatic display element actuators. Background technique [0004] Certain electromechanical systems (EMS) electrostatic actuators include opposing beams supported above a substrate. The voltage required to actuate such actuators depends in part on the minimum distance between the beams. For example, the voltage required to actuate the actuator decreases as the minimum distance between opposing beams decreases. In some embodiments of these actuators, the voltage required to actuate the actuator is reduced due to the inherent stress that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/02B81B3/00G09G3/34H02N1/00
CPCG02F1/0128B81B3/0056B81B3/0072B81B2203/051G02B26/00G02B26/001G02B26/007G02B26/02G02B26/023G02B26/0833G02B26/0841G02B27/0068G09G3/3433G09G3/3466G09G2300/0469G09G2300/0473G09G2300/08H02N1/006
Inventor 凯特·尼奇列里格马克·B·安德森泰勒·A·杜恩乔伊斯·H·吴
Owner SNAPTRACK