KR930016803A - Driving Method of Active-Matrix Liquid Crystal Display - Google Patents

Driving Method of Active-Matrix Liquid Crystal Display Download PDF

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Publication number
KR930016803A
KR930016803A KR1019930000446A KR930000446A KR930016803A KR 930016803 A KR930016803 A KR 930016803A KR 1019930000446 A KR1019930000446 A KR 1019930000446A KR 930000446 A KR930000446 A KR 930000446A KR 930016803 A KR930016803 A KR 930016803A
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South Korea
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liquid crystal
electric field
active
crystal display
display device
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KR1019930000446A
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Korean (ko)
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KR960016726B1 (en
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도모야끼 쿠라타테
쯔기꼬 미나미하라
토시오 마쯔모또
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쯔지 하루오
샤프 가부시끼가이샤
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    • 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
    • G09G3/3651—Control of matrices with row and column drivers using an active matrix using multistable liquid crystals, e.g. ferroelectric liquid crystals
    • 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
    • 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
    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • 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
    • G09G2320/0204—Compensation of DC component across the pixels in flat panels
    • 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
    • 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
    • G09G3/3406—Control of illumination source

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  • 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)

Abstract

본 발명은, 주사선과 데이타선에 연결된 스위칭소자들과, 이 스위칭소자의 도움으로 액정에 전계를 인가하는 화소전극들을 포함하며, 상기 스위칭소자들과 화소전극들은 매트릭스 형태로 배열되고, 상기 액정은 자발분극을 갖는 액정으로 이루어지는 액티브-매트릭스 액정표시장치의 구동방법에 있어서; 액정의 전기-광학적 응답기간보다 짧은 기간 동안 상기 스위칭소자들과 화소전극들을 통해 액정에 전계를 인가하여, 액정분자들을 여진하도록 액정을 충전하는 단계; 선형 순차 모드로 전계를 인가하여 모든 주사선에 대응하는 화소전극에 놓여있는 액정을 주사하여, 1개의 화상 필드를 형성하는 단계; 상기 화상 필드들 여러개를 직렬로 결합하여 1프레임을 형성하는 단계; 및 그 결과 표시된 화상을 다수의 제조들에 제공하는 단계; 로 구성되는 액티브-매트릭스 액정표시장치의 구동방법에 관한 것이다.The present invention includes switching elements connected to a scan line and a data line, and pixel electrodes for applying an electric field to the liquid crystal with the aid of the switching element, wherein the switching elements and the pixel electrodes are arranged in a matrix form, A method of driving an active-matrix liquid crystal display device comprising a liquid crystal having spontaneous polarization; Charging an liquid crystal to excite liquid crystal molecules by applying an electric field to the liquid crystal through the switching elements and the pixel electrodes for a period shorter than the electro-optical response period of the liquid crystal; Applying an electric field in a linear sequential mode to scan liquid crystals placed on the pixel electrodes corresponding to all the scan lines, thereby forming one image field; Combining the plurality of picture fields in series to form one frame; And providing the resulting displayed image to multiple manufactures; It relates to a driving method of an active-matrix liquid crystal display device.

Description

액티브-매트릭스 액정표시장치의 구동방법Driving Method of Active-Matrix Liquid Crystal Display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 단순-매트릭스 어드레스법에 있어서 데이타선과 주사선에 인가되는 전계 및 액정셀의 각 화소에 인가되는 전계를 도시한 도면; 제2도는 TFT 소자를 갖는 액티브-매트릭스 액정표시장치의 특성들을 도시한 파형도; 제3도는 2-단자 스위칭소자의 특성을 도시한 도면.1 is a diagram showing an electric field applied to the data line and the scanning line and an electric field applied to each pixel of the liquid crystal cell in the simple matrix address method; 2 is a waveform diagram showing characteristics of an active-matrix liquid crystal display device having a TFT element; 3 shows characteristics of a two-terminal switching element.

Claims (7)

주사선과 데이타선에 연결된 스위칭소자들과, 이 스위칭소자의 도움으로 액정에 전계를 인가하는 화소전극들을 포함하며, 상기 스위칭소자들과 화소전극들은 매트릭스 형태로 배열되고, 상기 액정은 자발분극을 갖는 액정으로 이루어지는 액티브-매트릭스 액정표시장치의 구동방법에 있어서; 액정의 전기-광학적 응답기간보다 짧은 기간 동안 상기 스위칭소자들과 화소전극들을 통해 액정에 전계를 인가하여, 액정분자들을 여진하도록 액정을 충전하는 단계; 선형 순차 모드로 전계를 인가하여 모든 주사선에 대응하는 화소전극에 놓여있는 액정을 주사하여, 1개의 화상 필드를 형성하는 단계; 상기 화상 필드들 여러개를 직렬로 결합하여 1프레임을 형성하는 단계; 및 그 결과 표시된 화상을 다수의 제조들에 제공하는 단계; 로 구성되는 액티브-매트릭스 액정표시장치의 구동방법.And switching elements connected to the scan line and the data line, and pixel electrodes for applying an electric field to the liquid crystal with the aid of the switching element, wherein the switching elements and the pixel electrodes are arranged in a matrix, and the liquid crystal has spontaneous polarization. A method of driving an active-matrix liquid crystal display device comprising liquid crystals; Charging an liquid crystal to excite liquid crystal molecules by applying an electric field to the liquid crystal through the switching elements and the pixel electrodes for a period shorter than the electro-optical response period of the liquid crystal; Applying an electric field in a linear sequential mode to scan liquid crystals placed on the pixel electrodes corresponding to all the scan lines, thereby forming one image field; Combining the plurality of picture fields in series to form one frame; And providing the resulting displayed image to multiple manufactures; Method of driving an active-matrix liquid crystal display device consisting of. 제1항에 있어서, 1프레임을 형성하는 상기 화상 필드들 각각을 같은 기간동안 주사하는 액티브-매트릭스 액정표시장치의 구동방법.The driving method of an active-matrix liquid crystal display device according to claim 1, wherein each of the image fields forming one frame is scanned for the same period. 제1항에 있어서, 1프레임을 형성하는 상기 화상 필드들을 각각 다른 기간동안 주사하는 액티브-매트릭스 액정표시장치의 구동방법.The method of driving an active-matrix liquid crystal display device according to claim 1, wherein the image fields forming one frame are scanned for different periods. 제1항에 있어서, 상기 프레임이 n개의 화상 필드로 구성되어 2n개의 계조를 제공하는 액티브-매트릭스 액정표시장치의 구동방법.The method of driving an active-matrix liquid crystal display device according to claim 1, wherein the frame is composed of n image fields to provide 2n gradations. 제1항에 있어서, 상기 전계는 1프레임을 형성하는 기간 동안에 소거될 정도의 크기와 극성을 갖는 액티브-매트릭스 액정표시장치의 구동방법.The method of claim 1, wherein the electric field has a magnitude and a polarity such that the electric field is erased during a period of forming one frame. 제1항에 있어서, 상기 전계는 다수의 프레임을 형성하는 기간 동안에 소거될 정도의 크기와 극성을 갖는 액티브-매트릭스 액정표시장치의 구동방법.The method of claim 1, wherein the electric field has a magnitude and a polarity such that the electric field is erased during a period of forming a plurality of frames. 제1항에 있어서, 인가되는 전계를 소거하기 위해 액정의 전기-광학적 응답기간 보다 짧은 기간을 갖는 고주파 전압을 액정에 인가하는 단계를 더 포함하는 액티브-매트릭스 액정표시장치의 구동방법.The method of driving an active-matrix liquid crystal display device according to claim 1, further comprising applying a high frequency voltage to the liquid crystal having a period shorter than the electro-optical response period of the liquid crystal to cancel the applied electric field. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930000446A 1992-01-14 1993-01-13 Method of driving active-matrix lcd device KR960016726B1 (en)

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JP92-04862 1992-01-14
JP4004862A JP2977356B2 (en) 1992-01-14 1992-01-14 Driving method of active matrix liquid crystal display device

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KR960016726B1 KR960016726B1 (en) 1996-12-20

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* Cited by examiner, † Cited by third party
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JP3644672B2 (en) * 1999-07-09 2005-05-11 シャープ株式会社 Display device and driving method thereof
JP2001337311A (en) 2000-05-29 2001-12-07 Sony Corp Method for driving liquid crystal display element
GB0402046D0 (en) * 2004-01-29 2004-03-03 Koninkl Philips Electronics Nv Active matrix display device

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US4709995A (en) * 1984-08-18 1987-12-01 Canon Kabushiki Kaisha Ferroelectric display panel and driving method therefor to achieve gray scale
NL8703085A (en) * 1987-12-21 1989-07-17 Philips Nv METHOD FOR CONTROLLING A DISPLAY DEVICE
JP2603347B2 (en) * 1989-12-19 1997-04-23 キヤノン株式会社 Information processing device and display device using the same

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KR960016726B1 (en) 1996-12-20
TW212845B (en) 1993-09-11
JPH05188884A (en) 1993-07-30
JP2977356B2 (en) 1999-11-15
EP0552886A1 (en) 1993-07-28

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