EP0778558A3 - Circuit de commande de colonnes d'un dispositif d'affichage à cristaux liquides avec commande du rapport cyclique de trame - Google Patents

Circuit de commande de colonnes d'un dispositif d'affichage à cristaux liquides avec commande du rapport cyclique de trame Download PDF

Info

Publication number
EP0778558A3
EP0778558A3 EP96308500A EP96308500A EP0778558A3 EP 0778558 A3 EP0778558 A3 EP 0778558A3 EP 96308500 A EP96308500 A EP 96308500A EP 96308500 A EP96308500 A EP 96308500A EP 0778558 A3 EP0778558 A3 EP 0778558A3
Authority
EP
European Patent Office
Prior art keywords
lcd
duty cycle
cycle control
column driver
frame duty
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.)
Withdrawn
Application number
EP96308500A
Other languages
German (de)
English (en)
Other versions
EP0778558A2 (fr
Inventor
Kai Pui c/o Varitronix Limited Ho
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.)
Varintelligent BVI Ltd
Original Assignee
Varintelligent BVI 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
Application filed by Varintelligent BVI Ltd filed Critical Varintelligent BVI Ltd
Publication of EP0778558A2 publication Critical patent/EP0778558A2/fr
Publication of EP0778558A3 publication Critical patent/EP0778558A3/fr
Withdrawn legal-status Critical Current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
    • G09G3/36—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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2230/00—Details of flat display driving waveforms
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
EP96308500A 1995-11-27 1996-11-25 Circuit de commande de colonnes d'un dispositif d'affichage à cristaux liquides avec commande du rapport cyclique de trame Withdrawn EP0778558A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9524193 1995-11-27
GBGB9524193.1A GB9524193D0 (en) 1995-11-27 1995-11-27 A driver

Publications (2)

Publication Number Publication Date
EP0778558A2 EP0778558A2 (fr) 1997-06-11
EP0778558A3 true EP0778558A3 (fr) 1998-02-04

Family

ID=10784492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96308500A Withdrawn EP0778558A3 (fr) 1995-11-27 1996-11-25 Circuit de commande de colonnes d'un dispositif d'affichage à cristaux liquides avec commande du rapport cyclique de trame

Country Status (5)

Country Link
EP (1) EP0778558A3 (fr)
KR (1) KR970029309A (fr)
GB (2) GB9524193D0 (fr)
SG (1) SG54392A1 (fr)
TW (1) TW337579B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3339492B2 (ja) * 2000-05-10 2002-10-28 日新電機株式会社 イオン源の運転方法およびイオンビーム照射装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193728A2 (fr) * 1985-03-08 1986-09-10 Ascii Corporation Système de commande d'affichage
US5053764A (en) * 1987-10-09 1991-10-01 Thomson Csf System for the display of images in half tones on a matrix screen
US5196839A (en) * 1988-09-16 1993-03-23 Chips And Technologies, Inc. Gray scales method and circuitry for flat panel graphics display

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0720821A (ja) * 1993-06-24 1995-01-24 Internatl Business Mach Corp <Ibm> 多階調薄膜トランジスタ液晶表示装置
JP3275991B2 (ja) * 1994-07-27 2002-04-22 シャープ株式会社 アクティブマトリクス型表示装置及びその駆動方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193728A2 (fr) * 1985-03-08 1986-09-10 Ascii Corporation Système de commande d'affichage
US5053764A (en) * 1987-10-09 1991-10-01 Thomson Csf System for the display of images in half tones on a matrix screen
US5196839A (en) * 1988-09-16 1993-03-23 Chips And Technologies, Inc. Gray scales method and circuitry for flat panel graphics display

Also Published As

Publication number Publication date
TW337579B (en) 1998-08-01
GB2307584A (en) 1997-05-28
EP0778558A2 (fr) 1997-06-11
SG54392A1 (en) 1998-11-16
GB9624443D0 (en) 1997-01-15
GB9524193D0 (en) 1996-01-31
KR970029309A (ko) 1997-06-26

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