KR950033581A - 액정 전기 광학장치, 그것을 이용한 투사형 표시 시스템, 및 액정 전기 광학 장치의 구동 방법 - Google Patents

액정 전기 광학장치, 그것을 이용한 투사형 표시 시스템, 및 액정 전기 광학 장치의 구동 방법 Download PDF

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KR950033581A
KR950033581A KR1019950009490A KR19950009490A KR950033581A KR 950033581 A KR950033581 A KR 950033581A KR 1019950009490 A KR1019950009490 A KR 1019950009490A KR 19950009490 A KR19950009490 A KR 19950009490A KR 950033581 A KR950033581 A KR 950033581A
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liquid crystal
pair
optical device
crystal layer
electro
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KR1019950009490A
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KR100288371B1 (ko
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신지 시마다
기요시 오기시마
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쯔지 하루오
샤프 가부시끼가이샤
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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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)

Abstract

본 발명에 따라, 액정 전기 광학 장치가 제공된다. 액정 전기 광학 장치는 서로 대면하도록 배치된 1쌍의 절연기판들, 상기 절연기판들 사이에 협지된 액정층, 및 상기 액정층과 접촉하도록 상기 절연기판들위에 각각 형성된 1쌍의 배향막들을 포함한다. 상기 1쌍의 배향막들과 접촉하는 상기 액정층에 액정분자들의 배향이 상기 1쌍의 절연기판들에 실질적으로 수직인 방향으로 배향되고, 상기 액정층은 그 두께의 대략 4배인 트위스트 피치를 갖는다.

Description

액정 전기 광학 장치, 그것을 이용한 투사형 표시 시스템, 및 액정 전기 광학 장치의 구동 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 액정 전기 광학 장치의 단면도.

Claims (12)

  1. 서로 대면하도록 배치된 1쌍의 절연기판들, 상기 1쌍의 절연 기판들사이에 끼워진 액정층, 및 상기 액정층과 접촉하도록 상기 1쌍의 절연기판들위에 각각 형성된 1쌍의 배향막들을 포함하며, 상기 1쌍의 배향막들과 접촉하는 상기 액정층내 액정 분자들의 배향이 상기 1쌍의 절연기판들에 실질적으로 수직한 방향으로 배향되고, 상기 액정층은 상기 액정층 두께의 대략 4배인 트위스트 피치를 갖는 액정 전기 광학 장치.
  2. 제1항에 있어서, 상기 액정층은 부의 유전 이방선을 갖는 네마틱 액정을 포함하는 액정 전기 광학 장치.
  3. 제1항에 있어서, 상기 액정층은 상기 액정층내 액정분자들의 배향이 뒤틀리도록 키랄 도펀트로 도핑된 액정을 포함하는 액정 전기 광학 장치.
  4. 제1항에 있어서, 상기 액정 분자들의 배향은 상기 액정층에 전계가 인가될 때 상기 액정층의 두께를 따라 실질적으로 90°뒤틀리는 액정 전기 광학 장치.
  5. 제1항에 있어서, 상기 1쌍의 배향막들은 수직배향막으로서 이와 접촉하는 액정분자들을 배향시키고, 하나의 수직 배향막이 제1방향으로 러빙되는 한편 다른 하나의 수직 배향막이 제2방향으로 러빙되고, 상기 제1방향이 상기 제2방향으로부터 실질적으로 90°이동되도록 상기 수직 배향막들이 배열되는 액정 전기 광학 장치.
  6. 제1항에 있어서, 상기 1쌍의 배향막들이 측쇄를 가진 폴리아미드 함유 재료로 형성되는 액정 전기 광학 장치.
  7. 제1항에 있어서, 상기 1쌍의 절연기판을 협지하도록 배치된 1쌍의 편광기들을 더 포함하고, 상기 1쌍의 편광기들은 그 편광축선들이 실질적으로 서로 수직이 되도록 배열되는 액정 전기 광학 장치.
  8. 제5항에 있어서, 상기 1쌍의 절연기판을 협지하도록 배치된 1쌍의 편광기들을 더 포함하고, 상기 1쌍의 절연기판들은 그 편광축선들이 실질적으로 서로 수직이 되도록 배열되는 액정 전기 광학 장치.
  9. 제8항에 있어서, 상기 1쌍의 편광기들의 편광축선들 중 하나가 상기 제1방향에 실질적으로 평행하고 상기 1쌍의 편광기들의 편광축선들중 다른 하나가 상기 제2방향에 실질적으로 평행한 액정 전기 광학 장치.
  10. 제1항에 있어서, 상기 액정층의 두께가 상기 트위스트 피치의 20% 내지 35%범위에 있는 액정 전기 광학 장치.
  11. 광원, 이 광원으로부터 광을 받아 화상을 표시하는 전기 광학 장치, 및 상기 전기 광학 장치에 의해 표시된 화상을 투시하는 투사렌즈를 포함하고, 상기 광원과 투사렌즈가 상기 전기 광학 장치를 협지하도록 배치되어 있는 투사형 표시 시스템으로서, 상기 전기 광학 장치는, 서로 대면하도록, 배치된 1쌍의 절연기판들, 상기 1상의 절연기판들 사이에 협지된 액정충, 및 상기 액정층과 접촉하도록 상기 1쌍의 절연기판들에 각각 형성된 1쌍의 배향막들을 포함하고, 상기 1쌍의 배향막들과 접촉하는 상기 액정층내 애정분자들의 배향이 상기 1쌍의 절연기판들에 실질적으로 수직인 방향으로 배향되고, 상기 액정층이 상기 액정층의 두께의 대략 4배인 트위스트 피치를 갖는 투사형 표시 시스템.
  12. 액정충 양단에 전압을 인가하는 단계를 포함하여, 상기 액정층의 최대 투과율을 제공하는 전계의 1.1배 이하의 전계가 상기 액정층에 인가되는, 제1항에 따른 액정 전기 광학 장치를 구동하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950009490A 1994-04-20 1995-04-19 액정 전기 광학 장치, 그것을 이용한 투사형 표시 시스템 및 액정 전기 광학 장치의 구동 방법 KR100288371B1 (ko)

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JP94-81888 1994-04-20
JP8188894 1994-04-20
JP6257149A JPH086025A (ja) 1994-04-20 1994-10-21 液晶電気光学装置、それを用いた投射型表示システムおよび液晶電気光学装置の駆動方法
JP94-257149 1994-10-21

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KR100288371B1 KR100288371B1 (ko) 2001-05-02

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