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GB2431529B - Shift register and driving method thereof - Google Patents

Shift register and driving method thereof

Info

Publication number
GB2431529B
GB2431529B GB0625444A GB0625444A GB2431529B GB 2431529 B GB2431529 B GB 2431529B GB 0625444 A GB0625444 A GB 0625444A GB 0625444 A GB0625444 A GB 0625444A GB 2431529 B GB2431529 B GB 2431529B
Authority
GB
United Kingdom
Prior art keywords
shift register
driving method
pull
enabled
output
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.)
Expired - Fee Related
Application number
GB0625444A
Other versions
GB2431529A (en
GB0625444D0 (en
Inventor
Su Hwan Moon
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.)
LG Display Co Ltd
Original Assignee
LG Philips LCD Co Ltd
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
Priority claimed from KR1020040021986A external-priority patent/KR101143803B1/en
Priority claimed from KR1020040030337A external-priority patent/KR101073263B1/en
Priority claimed from GB0425498A external-priority patent/GB2412798B/en
Application filed by LG Philips LCD Co Ltd filed Critical LG Philips LCD Co Ltd
Publication of GB0625444D0 publication Critical patent/GB0625444D0/en
Publication of GB2431529A publication Critical patent/GB2431529A/en
Application granted granted Critical
Publication of GB2431529B publication Critical patent/GB2431529B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • 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
    • G09G3/36—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 liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • 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
    • G09G3/36—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 liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/18—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages
    • G11C19/182—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages in combination with semiconductor elements, e.g. bipolar transistors, diodes
    • G11C19/184—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages in combination with semiconductor elements, e.g. bipolar transistors, diodes with field-effect transistors, e.g. MOS-FET
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/15—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors
    • H03K5/15013—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs
    • H03K5/1506—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages
    • H03K5/15093—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages using devices arranged in a shift register
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0404—Matrix technologies
    • G09G2300/0417—Special arrangements specific to the use of low carrier mobility technology
    • 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
    • G09G3/36—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 liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Shift Register Type Memory (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A scan pulse shift register for an LCD panel comprises a pull-up transistor T5 which is enabled by T1 to conduct the clock pulse C1 to the row conductor output. Two pull-down transistors T6,T7 are alternately enabled when the output is low so that gate voltage stress on the transistors T6,T7 is reduced. Clock feedthrough to the gate of T5 via CGD is compensated by an opposite clock feedthrough via the compensating capacitor CC.
GB0625444A 2004-03-31 2006-12-20 Shift register and driving method thereof Expired - Fee Related GB2431529B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020040021986A KR101143803B1 (en) 2004-03-31 2004-03-31 Shift register and method for driving the same
KR1020040030337A KR101073263B1 (en) 2004-04-30 2004-04-30 Shift register and method for driving the same
GB0425498A GB2412798B (en) 2004-03-31 2004-11-18 Shift register and driving method thereof

Publications (3)

Publication Number Publication Date
GB0625444D0 GB0625444D0 (en) 2007-01-31
GB2431529A GB2431529A (en) 2007-04-25
GB2431529B true GB2431529B (en) 2007-08-22

Family

ID=37897272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0625444A Expired - Fee Related GB2431529B (en) 2004-03-31 2006-12-20 Shift register and driving method thereof

Country Status (1)

Country Link
GB (1) GB2431529B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5949398A (en) * 1996-04-12 1999-09-07 Thomson Multimedia S.A. Select line driver for a display matrix with toggling backplane
US6052426A (en) * 1994-05-17 2000-04-18 Thomson Lcd Shift register using M.I.S. transistors of like polarity
US6064713A (en) * 1996-01-11 2000-05-16 Thomson Lcd Shift register using "MIS" transistors of like polarity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6052426A (en) * 1994-05-17 2000-04-18 Thomson Lcd Shift register using M.I.S. transistors of like polarity
US6064713A (en) * 1996-01-11 2000-05-16 Thomson Lcd Shift register using "MIS" transistors of like polarity
US5949398A (en) * 1996-04-12 1999-09-07 Thomson Multimedia S.A. Select line driver for a display matrix with toggling backplane

Also Published As

Publication number Publication date
GB2431529A (en) 2007-04-25
GB0625444D0 (en) 2007-01-31

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Legal Events

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

Effective date: 20211118