GB2435164A - Charge control circuit for a micro-electromechanical device - Google Patents

Charge control circuit for a micro-electromechanical device

Info

Publication number
GB2435164A
GB2435164A GB0706042A GB0706042A GB2435164A GB 2435164 A GB2435164 A GB 2435164A GB 0706042 A GB0706042 A GB 0706042A GB 0706042 A GB0706042 A GB 0706042A GB 2435164 A GB2435164 A GB 2435164A
Authority
GB
United Kingdom
Prior art keywords
micro
control circuit
charge control
electromechanical device
mems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0706042A
Other versions
GB2435164B (en
GB0706042D0 (en
Inventor
Eric T Martin
Adam L Ghozeil
Arthur Raymond Piehl
James R Przybyla
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Development Co LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Publication of GB0706042D0 publication Critical patent/GB0706042D0/en
Publication of GB2435164A publication Critical patent/GB2435164A/en
Application granted granted Critical
Publication of GB2435164B publication Critical patent/GB2435164B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/3466—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on interferometric effect
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • G02B26/0841—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD the reflecting element being moved or deformed by electrostatic means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage

Abstract

The present invention provides a micro-electromechanical system (10) comprising an electrostatically controlled micro-electromechanical system (MEMS) device (26) having a first plate and a second plate separated by a deflection distance based on a variable capacitance, a charge storage device (22) configured to store a charge amount, and a switch circuit (18). The switch circuit is configured to control the variable capacitance of the MEMS device by sharing the charge amount between the charge storage device and the MEMS device to equalize the charge storage device and the MEMS device to a same voltage.
GB0706042A 2004-10-15 2007-03-28 Charge control circuit for a micro-electromechanical device Expired - Fee Related GB2435164B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2004/034167 WO2006043937A1 (en) 2004-10-15 2004-10-15 Charge control circuit for a micro-electromechanical device

Publications (3)

Publication Number Publication Date
GB0706042D0 GB0706042D0 (en) 2007-05-09
GB2435164A true GB2435164A (en) 2007-08-15
GB2435164B GB2435164B (en) 2010-01-06

Family

ID=36203252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0706042A Expired - Fee Related GB2435164B (en) 2004-10-15 2007-03-28 Charge control circuit for a micro-electromechanical device

Country Status (4)

Country Link
JP (1) JP4606466B2 (en)
DE (1) DE112004002989T5 (en)
GB (1) GB2435164B (en)
WO (1) WO2006043937A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020025595A1 (en) * 2000-02-02 2002-02-28 Ji-Hai Xu MEMS variable capacitor with stabilized electrostatic drive and method therefor
US6853476B2 (en) * 2003-04-30 2005-02-08 Hewlett-Packard Development Company, L.P. Charge control circuit for a micro-electromechanical device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11211999A (en) * 1998-01-28 1999-08-06 Teijin Ltd Optical modulating element and display device
JP4133155B2 (en) * 2002-09-19 2008-08-13 株式会社リコー Electrostatic drive type device, optical switch, optical scanner and inkjet head
US7370185B2 (en) * 2003-04-30 2008-05-06 Hewlett-Packard Development Company, L.P. Self-packaged optical interference display device having anti-stiction bumps, integral micro-lens, and reflection-absorbing layers
US7072093B2 (en) * 2003-04-30 2006-07-04 Hewlett-Packard Development Company, L.P. Optical interference pixel display with charge control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020025595A1 (en) * 2000-02-02 2002-02-28 Ji-Hai Xu MEMS variable capacitor with stabilized electrostatic drive and method therefor
US6853476B2 (en) * 2003-04-30 2005-02-08 Hewlett-Packard Development Company, L.P. Charge control circuit for a micro-electromechanical device

Also Published As

Publication number Publication date
WO2006043937A1 (en) 2006-04-27
JP4606466B2 (en) 2011-01-05
JP2008517324A (en) 2008-05-22
GB2435164B (en) 2010-01-06
GB0706042D0 (en) 2007-05-09
DE112004002989T5 (en) 2008-01-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20121015