EP1528534A1 - Steuereinrichtung eines Flüssigkristallanzeigegeräts und Ansteuerverfahren dafür - Google Patents

Steuereinrichtung eines Flüssigkristallanzeigegeräts und Ansteuerverfahren dafür Download PDF

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Publication number
EP1528534A1
EP1528534A1 EP03025009A EP03025009A EP1528534A1 EP 1528534 A1 EP1528534 A1 EP 1528534A1 EP 03025009 A EP03025009 A EP 03025009A EP 03025009 A EP03025009 A EP 03025009A EP 1528534 A1 EP1528534 A1 EP 1528534A1
Authority
EP
European Patent Office
Prior art keywords
image data
bit
data
liquid crystal
accordance
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
EP03025009A
Other languages
English (en)
French (fr)
Other versions
EP1528534B1 (de
Inventor
Cheng-Jung Chen
Yuh-Ren Shen
Liang-Chen Chien
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.)
VastView Technology Inc
Original Assignee
VastView Technology Inc
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 VastView Technology Inc filed Critical VastView Technology Inc
Priority to EP03025009A priority Critical patent/EP1528534B1/de
Publication of EP1528534A1 publication Critical patent/EP1528534A1/de
Application granted granted Critical
Publication of EP1528534B1 publication Critical patent/EP1528534B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0252—Improving the response speed
    • 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
    • G09G2320/0261—Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to the screen
    • 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
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G09G2330/022—Power management, e.g. power saving in absence of operation, e.g. no data being entered during a predetermined time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous frame
    • 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

Definitions

  • the invention relates to a driving circuit of a liquid crystal display and a driving method thereof according to the pre-characterizing clause of claim 1.
  • the reference table used in the lookup table 45 is different.
  • Fig.7 is a reference table 70 used for the lookup table 45 in this situation.
  • the reference table 70 is recorded with (2 5 x 2 6 ) 8-bit image data values 72.
  • the result value is 1, meaning that the first extracted image data D5' and the second extracted image data D6 are different, the first extracted image data D5' and the second extracted image data D6 are transferred to the lookup table 45.
  • the lookup table 45 selects a corresponding 8-bit image data value 72 from the reference table 70 as a first image value D8' according to the first extracted image data D5' and the second extracted image data D6, and transfers the first image value D8' to the multiplexer 46.
  • the first extracted image data D5' and the second extracted image data D5 are both 5-bit image data
  • the reference table 90 is stored with (2 5 x 2 5 ) 8-bit image data 92.
  • the lookup table 45 selects a corresponding 8-bit image data value 92 from the reference table 90 according to the first extracted image data D5' and the second extracted image data D5 to control the followed operation of the data line driving circuit 47.
  • the lookup table 105 selects a 8-bit over-driving image data from the reference table 50, 70, or 90 according to the first extracted image data D6' and the second extracted image data D6, and extracts 2 LSB D2' and 6 MSB D6-out of the 8-bit over-driving image data.
  • the value of the first extracted image data D6' is 2 (000010) and the value of the second extracted image data D6 is 3 (000011).

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)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
EP03025009A 2003-10-30 2003-10-30 Steuereinrichtung eines Flüssigkristallanzeigegeräts und Ansteuerverfahren dafür Expired - Lifetime EP1528534B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03025009A EP1528534B1 (de) 2003-10-30 2003-10-30 Steuereinrichtung eines Flüssigkristallanzeigegeräts und Ansteuerverfahren dafür

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03025009A EP1528534B1 (de) 2003-10-30 2003-10-30 Steuereinrichtung eines Flüssigkristallanzeigegeräts und Ansteuerverfahren dafür

Publications (2)

Publication Number Publication Date
EP1528534A1 true EP1528534A1 (de) 2005-05-04
EP1528534B1 EP1528534B1 (de) 2012-04-18

Family

ID=34400502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025009A Expired - Lifetime EP1528534B1 (de) 2003-10-30 2003-10-30 Steuereinrichtung eines Flüssigkristallanzeigegeräts und Ansteuerverfahren dafür

Country Status (1)

Country Link
EP (1) EP1528534B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748412A3 (de) * 2005-07-27 2007-09-05 Mitsubishi Electric Corporation Bildverarbeitungsschaltung
CN100353412C (zh) * 2005-06-03 2007-12-05 友达光电股份有限公司 像素驱动方法、时序控制器与平面显示器
CN101101735B (zh) * 2006-07-07 2011-07-27 奇美电子股份有限公司 液晶显示装置及其过度驱动方法
CN108806623A (zh) * 2018-04-25 2018-11-13 南京中电熊猫平板显示科技有限公司 过压补偿装置及方法及过压补偿显示装置及方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04318516A (ja) * 1991-04-17 1992-11-10 Casio Comput Co Ltd 液晶パネル駆動装置
EP0513551A2 (de) * 1991-04-17 1992-11-19 Casio Computer Company Limited Bildanzeigevorrichtung
US20020050965A1 (en) * 2000-10-27 2002-05-02 Mitsubishi Denki Kabushiki Kaisha Driving circuit and driving method for LCD
US20020196221A1 (en) * 2001-06-25 2002-12-26 Toshiyuki Morita Liquid crystal display device
US20020196218A1 (en) * 2001-06-11 2002-12-26 Lg. Phillips Lcd Co., Ltd. Method and apparatus for driving liquid display
WO2003041043A1 (en) * 2001-11-09 2003-05-15 Sharp Kabushiki Kaisha Liquid crystal display
US20030098839A1 (en) * 2001-11-26 2003-05-29 Lee Baek-Woon Liquid crystal display and a driving method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04318516A (ja) * 1991-04-17 1992-11-10 Casio Comput Co Ltd 液晶パネル駆動装置
EP0513551A2 (de) * 1991-04-17 1992-11-19 Casio Computer Company Limited Bildanzeigevorrichtung
US20020050965A1 (en) * 2000-10-27 2002-05-02 Mitsubishi Denki Kabushiki Kaisha Driving circuit and driving method for LCD
US20020196218A1 (en) * 2001-06-11 2002-12-26 Lg. Phillips Lcd Co., Ltd. Method and apparatus for driving liquid display
US20020196221A1 (en) * 2001-06-25 2002-12-26 Toshiyuki Morita Liquid crystal display device
WO2003041043A1 (en) * 2001-11-09 2003-05-15 Sharp Kabushiki Kaisha Liquid crystal display
US20030098839A1 (en) * 2001-11-26 2003-05-29 Lee Baek-Woon Liquid crystal display and a driving method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 147 (P - 1508) 24 March 1993 (1993-03-24) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100353412C (zh) * 2005-06-03 2007-12-05 友达光电股份有限公司 像素驱动方法、时序控制器与平面显示器
EP1748412A3 (de) * 2005-07-27 2007-09-05 Mitsubishi Electric Corporation Bildverarbeitungsschaltung
US7642999B2 (en) 2005-07-27 2010-01-05 Mitsubishi Electric Corporation Image processing circuit
CN101101735B (zh) * 2006-07-07 2011-07-27 奇美电子股份有限公司 液晶显示装置及其过度驱动方法
CN108806623A (zh) * 2018-04-25 2018-11-13 南京中电熊猫平板显示科技有限公司 过压补偿装置及方法及过压补偿显示装置及方法

Also Published As

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EP1528534B1 (de) 2012-04-18

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