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WO2008030740A3 - Methods for driving electrophoretic displays - Google Patents

Methods for driving electrophoretic displays Download PDF

Info

Publication number
WO2008030740A3
WO2008030740A3 PCT/US2007/077091 US2007077091W WO2008030740A3 WO 2008030740 A3 WO2008030740 A3 WO 2008030740A3 US 2007077091 W US2007077091 W US 2007077091W WO 2008030740 A3 WO2008030740 A3 WO 2008030740A3
Authority
WO
WIPO (PCT)
Prior art keywords
methods
pixel
electrophoretic displays
optical state
driving electrophoretic
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.)
Ceased
Application number
PCT/US2007/077091
Other languages
French (fr)
Other versions
WO2008030740A2 (en
Inventor
Thomas H Whitesides
Joanna F Au
Karl R Amundson
Robert W Zehner
Ara N Knaian
Benjamin Zion
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.)
E Ink Corp
Original Assignee
E Ink Corp
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 E Ink Corp filed Critical E Ink Corp
Publication of WO2008030740A2 publication Critical patent/WO2008030740A2/en
Publication of WO2008030740A3 publication Critical patent/WO2008030740A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G09G3/344—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 particles moving in a fluid or in a gas, e.g. electrophoretic devices
    • 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
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/065—Waveforms comprising zero voltage phase or pause
    • 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
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/068—Application of pulses of alternating polarity prior to the drive pulse in electrophoretic displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A pixel of an electrophoretic display is driven from one extreme optical state to a second optical state different from the one extreme optical state by applying to the pixel a first drive pulse of one polarity; and thereafter applying to the pixel a second drive pulse of the opposite polarity, the second drive pulse being effective to drive the pixel to the second optical state.
PCT/US2007/077091 2006-09-05 2007-08-29 Methods for driving electrophoretic displays Ceased WO2008030740A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82453506P 2006-09-05 2006-09-05
US60/824,535 2006-09-05

Publications (2)

Publication Number Publication Date
WO2008030740A2 WO2008030740A2 (en) 2008-03-13
WO2008030740A3 true WO2008030740A3 (en) 2008-08-07

Family

ID=39157950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/077091 Ceased WO2008030740A2 (en) 2006-09-05 2007-08-29 Methods for driving electrophoretic displays

Country Status (1)

Country Link
WO (1) WO2008030740A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050162377A1 (en) * 2002-03-15 2005-07-28 Guo-Fu Zhou Electrophoretic active matrix display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050162377A1 (en) * 2002-03-15 2005-07-28 Guo-Fu Zhou Electrophoretic active matrix display device

Also Published As

Publication number Publication date
WO2008030740A2 (en) 2008-03-13

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