EP0488516A3 - Method and apparatus for displaying gray-scale levels - Google Patents

Method and apparatus for displaying gray-scale levels Download PDF

Info

Publication number
EP0488516A3
EP0488516A3 EP19910309733 EP91309733A EP0488516A3 EP 0488516 A3 EP0488516 A3 EP 0488516A3 EP 19910309733 EP19910309733 EP 19910309733 EP 91309733 A EP91309733 A EP 91309733A EP 0488516 A3 EP0488516 A3 EP 0488516A3
Authority
EP
European Patent Office
Prior art keywords
scale levels
displaying gray
gray
displaying
levels
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Withdrawn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
EP19910309733
Other languages
English (en)
Other versions
EP0488516A2 (fr
Inventor
Terazawa Sadahiro
Yamaguchi Hidefumi
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0488516A2 publication Critical patent/EP0488516A2/fr
Publication of EP0488516A3 publication Critical patent/EP0488516A3/en
Withdrawn legal-status Critical Current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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • G09G3/3688—Details of drivers for data 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
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
EP19910309733 1990-11-28 1991-10-22 Method and apparatus for displaying gray-scale levels Withdrawn EP0488516A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP32343290A JPH04194896A (ja) 1990-11-28 1990-11-28 階調表示方法及び装置
JP323432/90 1990-11-28

Publications (2)

Publication Number Publication Date
EP0488516A2 EP0488516A2 (fr) 1992-06-03
EP0488516A3 true EP0488516A3 (en) 1992-10-28

Family

ID=18154615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910309733 Withdrawn EP0488516A3 (en) 1990-11-28 1991-10-22 Method and apparatus for displaying gray-scale levels

Country Status (2)

Country Link
EP (1) EP0488516A3 (fr)
JP (1) JPH04194896A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2659473B2 (ja) * 1990-09-28 1997-09-30 富士通株式会社 表示パネル駆動回路
EP0478386B1 (fr) * 1990-09-28 1995-12-13 Sharp Kabushiki Kaisha Circuit de commande d'un dispositif d'affichage
DE69226723T2 (de) * 1991-05-21 1999-04-15 Sharp K.K., Osaka Verfahren und Einrichtung zum Steuern einer Anzeigeeinrichtung
JP2831518B2 (ja) * 1992-10-30 1998-12-02 シャープ株式会社 表示装置の駆動回路
JP2500417B2 (ja) * 1992-12-02 1996-05-29 日本電気株式会社 液晶駆動回路
JPH06274133A (ja) * 1993-03-24 1994-09-30 Sharp Corp 表示装置の駆動回路及び表示装置
JPH06314080A (ja) * 1993-04-14 1994-11-08 Internatl Business Mach Corp <Ibm> 液晶表示装置
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
US5574475A (en) * 1993-10-18 1996-11-12 Crystal Semiconductor Corporation Signal driver circuit for liquid crystal displays
US5703617A (en) * 1993-10-18 1997-12-30 Crystal Semiconductor Signal driver circuit for liquid crystal displays
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
JPH08115060A (ja) * 1994-10-14 1996-05-07 Sharp Corp 表示装置の駆動回路及び液晶表示装置
KR100218375B1 (ko) * 1997-05-31 1999-09-01 구본준 전하 재활용을 이용한 티에프티-엘씨디의 저전력 게이트드라이버회로
US6124840A (en) * 1997-04-07 2000-09-26 Hyundai Electronics Industries Co., Ltd. Low power gate driver circuit for thin film transistor-liquid crystal display (TFT-LCD) using electric charge recycling technique
KR100234720B1 (ko) * 1997-04-07 1999-12-15 김영환 Tft-lcd의 구동회로

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560957A (en) * 1966-01-26 1971-02-02 Hitachi Ltd Signal conversion systems with storage and correction of quantization error
EP0391655A2 (fr) * 1989-04-04 1990-10-10 Sharp Kabushiki Kaisha Dispositif de commande d'un appareil d'affichage matriciel à cristaux liquides

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2646523B2 (ja) * 1984-10-26 1997-08-27 旭硝子株式会社 画像表示装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560957A (en) * 1966-01-26 1971-02-02 Hitachi Ltd Signal conversion systems with storage and correction of quantization error
EP0391655A2 (fr) * 1989-04-04 1990-10-10 Sharp Kabushiki Kaisha Dispositif de commande d'un appareil d'affichage matriciel à cristaux liquides

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN. vol. 33, no. 6B, November 1990, NEW YORK US pages 384 - 385; 'Driving method for TFT/LCD gray scale' *
PATENT ABSTRACTS OF JAPAN vol. 12, no. 402 (E-673)25 October 1988 *

Also Published As

Publication number Publication date
EP0488516A2 (fr) 1992-06-03
JPH04194896A (ja) 1992-07-14

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