KR950033624A - 전기-광학장치 - Google Patents

전기-광학장치 Download PDF

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KR950033624A
KR950033624A KR1019950014079A KR19950014079A KR950033624A KR 950033624 A KR950033624 A KR 950033624A KR 1019950014079 A KR1019950014079 A KR 1019950014079A KR 19950014079 A KR19950014079 A KR 19950014079A KR 950033624 A KR950033624 A KR 950033624A
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liquid crystal
switching element
electrodes
thin film
electrode
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KR100284948B1 (ko
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준 고야마
유지 가와사키
사토시 데라모토
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야마자끼 순페이
가부시키가이샤 한도오따이 에네루기 겐규쇼
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G09G3/3614—Control of polarity reversal in general
    • 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
    • G09G3/3659—Control of matrices with row and column drivers using an active matrix the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76—Unipolar devices, e.g. field effect transistors
    • H01L29/772—Field effect transistors
    • H01L29/78—Field effect transistors with field effect produced by an insulated gate
    • H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136213—Storage capacitors associated with the pixel electrode
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Ceramic Engineering (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

액정이 한쌍의 기판사이에 배치되는 활성 매트릭스형 액정 디스플레이 장치에서 두개의 TFT는 기판상에 형성된 각각의 대응전극(하나의 픽셀에 대해)과 접속된다.
액정은 두개의 TFT에 의해 구동되고 수위칭된다.
액정에 인가된 전압은 두개의 TFT에 의해 분할되기 때문에, TFT의 항복 전압보다 더 큰 전압이 액정에 인가되어, TFT에 인가된 전압, 즉 각각의 TFT의 소스 및 드레인 사이에 인가된 전압은 감소된다. 전압 각각은 반대 위상을 갖는다.

Description

전기-광학장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예에 따른 전기-광학장치에서 매트릭스 형태로 배치된 개략의 픽셀부분을 보여주는 도면, 제10A도 내지 제10C도는 주변회로를 갖는 액정 디스플레이 판넬의 개략의 구조를 보여주는 도면, 제11도는 실시예에 따라 전기-광학장치에서 매트릭스 형태로 배치되는 픽셀부분의 회로 배치를 보여주는 도면.

Claims (18)

  1. 적어도 한쌍의 전극; 전극사이에 배치된 액정재료; 하나의 전극과 접속된 제1스위칭소자; 및 다른 전극과 접속된 제2스위칭 소자를 포함하는 전기-광학장치.
  2. 한쌍의 기판; 기판사이에 배치된 액정재료; 액정재료에 전압을 인가하기 위한 전극; 및 각각의 기판상에 매트릭스 형태로 형성되고 각각의 대응전극과 접속된 스위칭 소자를 포함하는 전기-광학장치.
  3. 한쌍의 전극; 전극사이에 배치된 액정재료; 동일한 극성을 갖고 각각의 대응전극과 접속된 박막트랜지스터를 포함하고, 두개의 박막트랜지스터가 동시에 동작되는 전기-광학장치.
  4. 한쌍의 전극; 전극사이에 배치된 액정재료; 하나의 전극과 접속된 적어도 하나의 N채널형 박막트랜지스터; 및 다른 전극과 접속된 적어도 하나의 P채널형 박막트랜지스터를 포함하고, N채널형 박막트랜지스터 및 P채널형 박막트랜지스터가 동시에 동작되는 전기-광학장치.
  5. 한쌍의 전극; 전극사이에 배치된 액정재료; 하나의 전극과 접속된 적어도 하나의 제1박막트랜지스터; 및 다른 전극과 접속된 적어도 하나의 제2박막트랜지스터를 포함하고, 제1위상을 갖는 신호는 제1박막트랜지스터의 소스에 공급되고, 제1위상에 반대인 제2위상을 갖는 신호는 제2박막트랜지스터의 소스에 공급되는 전기-과학장치.
  6. 한쌍의 기판; 기판사이에 배치된 액정재료; 각각의 기판상에 매트릭스 형태로 배치된 전극; 각각의 대응 전극을 위해 형성된 스위칭 소자; 및 스위칭 소자를 구동시키기 위한 구동회로를 포함하는 전기-광학장치.
  7. 한쌍의 전극; 전극사이에 배치된 액정재료; 및 각각의 대응전극을 위해 형성된 스위칭 소자를 포함하고, 하나의 전극을 위한 하나의 스위칭 소자가 다른 전극을 위한 또 다른 하나의 스위칭 소자와 겹쳐지는 전기-광학장치.
  8. 한쌍의 전극; 전극사이에 배치된 액정재료; 및 각각의 대응전극을 위해 형성된 스위칭 소자를 포함하고, 하나의 전극을 위한 하나의 스위칭 소자가 다른 전극을 위한 또 다른 하나의 스위칭 소자와 겹쳐지지 않는 전기-광학장치.
  9. 한쌍의 전극; 전극사이에 배치된 액정재료; 및 각각의 대응전극을 위해 형성된 스위칭 소자를 포함하고, 하나의 픽셀전극이 다른 픽셀 전극으로부터 이동되는 전기-광학장치.
  10. 한쌍의 기판; 각각이 적어도 하나의 스위칭 소자를 갖고 각각의 대응 기판상에 각각 형성된 한쌍의 활성 매트릭스 회로; 기판상에 형성되고 각각의 대응스위칭 소자가 접속되는 픽셀전극; 및 픽셀전극 사이에 배치된 액정재료를 포함하는 활성 매트릭스형 액정 디스플레이 장치.
  11. 제10항에 있어서, 스위칭 소자가 P-채널형 박막 트랜지스터를 포함하는 활성 매트릭스형 액정 디스플레이 장치.
  12. 제10항에 있어서, 스위칭 소자가 N-채널형 박막 트랜지스터를 포함하는 활성 매트릭스형 액정 디스플레이 장치.
  13. 한쌍의 기판; 각각이 적어도 하나의 스위칭 소자를 갖고 각각의 대응 기판상에 각각 형성된 한쌍의 활성 매트릭스 회로; 기판상에 형성되고 각각이 대응스위칭 소자가 접속되는 픽셀전극; 매트릭스 회로를 구동시키기 위한 구동기를 포함하고, 하나의 구동기는 하나의 활성 매트릭스 회로의 스위칭 소자에 제1위상을 갖는 전압을 공급하고, 다른 구동기는 다른 활성 매트릭스 회로에 제1위상에 반대인 제2위산을 갖는 전압을 공급하는 활성 매트릭스형 액정 디스플레이 장치.
  14. 제13항에 있어서, 스위칭 소자가 P-채널형 박막 트랜지스터를 포함하는 활성 매트릭스형 액정 디스플레이 장치.
  15. 제13항에 있어서, 스위칭 소자가 N-채널형 박막 트랜지스터를 포함하는 활성 매트릭스형 액정 디스플레이 장치.
  16. 적어도 한쌍의 픽셀 전극; 픽셀전극 사이에 배치된 액정재료; 및 각각의 대응픽셀 전극과 접속된 적어도 한쌍의 박막 트랜지스터를 포함하는 활성 매트릭스형 액정 디스플레이 장치.
  17. 제16항에 있어서, 박막 트랜지스터를 구동시키기 위한 적어도 한쌍의 구동기를 각각 추가로 포함하는 활성 매트릭스형 액정 디스플레이 장치.
  18. 제17항에 있어서, 제1위상을 갖는 전압은 하나의 박막 트랜지스터에 공급되고, 제1위상에 반대인 제2위상을 갖는 전압은 다른 박막 트랜지스터에 공급되는 활성 매트릭스형 액정 디스플레이 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950014079A 1994-05-31 1995-05-31 액티브 매트릭스형 액정표시장치 KR100284948B1 (ko)

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JP94-142447 1994-05-31
JP14244794 1994-05-31

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KR100284948B1 KR100284948B1 (ko) 2001-03-15

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CN (1) CN1095090C (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
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KR20160150058A (ko) * 2015-06-18 2016-12-28 포톤 다이나믹스, 인코포레이티드 박막 트랜지스터의 검사를 위한 고해상도 및 고속 스위칭 전기-광학 변조기

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JPH07335904A (ja) 1994-06-14 1995-12-22 Semiconductor Energy Lab Co Ltd 薄膜半導体集積回路
US6906383B1 (en) * 1994-07-14 2005-06-14 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and method of manufacture thereof
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