KR880701394A - 스멕틱 액정장치 - Google Patents
스멕틱 액정장치Info
- Publication number
- KR880701394A KR880701394A KR1019870701120A KR870701120A KR880701394A KR 880701394 A KR880701394 A KR 880701394A KR 1019870701120 A KR1019870701120 A KR 1019870701120A KR 870701120 A KR870701120 A KR 870701120A KR 880701394 A KR880701394 A KR 880701394A
- Authority
- KR
- South Korea
- Prior art keywords
- liquid crystal
- cholesteric
- smectic
- polarizer
- pitch
- Prior art date
Links
- 239000004990 Smectic liquid crystal Substances 0.000 title claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 230000003098 cholesteric effect Effects 0.000 claims 10
- 210000002421 cell wall Anatomy 0.000 claims 3
- 230000003287 optical effect Effects 0.000 claims 3
- 230000010287 polarization Effects 0.000 claims 3
- 230000002269 spontaneous effect Effects 0.000 claims 3
- 230000007704 transition Effects 0.000 claims 3
- 239000002178 crystalline material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- G02F1/141—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 using ferroelectric liquid crystals
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1도는 필름 카메라용 액정 셔터 시스템의 단면도이다.
제 2도는 4캐릭터 8바아형 디스플레이(four character eight bar display)의 개략도 이다.
제 3a도 및 제 3b도는 각각 경사 키랄 스멕틱 액정 물질층의 양식화된 평면도 및 측면도이다.
Claims (16)
- 각각 전극 및 액정분자가 균일하게 정렬되어 정렬방향이 평행하거나 거의 평행하도록 처리된 표면을 수반하는 두 개의 셀 벽 사이에 함유된 경사 키랄 스멕틱 액정 결정물질의 층 ; 및 셀 벽면 어느 한면에 배열되어 있으며, 전환된 상태중의 어느 하나에 있어서 한 편광자의 광축이 다른 편광자의 광축에 대하여 교차하고 한 편광자의 광축이 액정분자의 정렬상태에 대해 평행한 두 개의 편광자로 이루어지며, 상기의 액정물질은 정상적인 장치 작동 온도에서는 경사 키랄 스멕틱 상이며 더 높은 온도에서는 콜레스테릭 상이고, 콜레스테릭 피치가 콜리스테릭/스멕틱 전이온도보다 적어도 0.1℃높은 콜레스테릭 상에서 층 두께 이상이며, 사실상 자발 분극 계수를 가지며, 온도가 증가함에 따라 상이 키랄 스멕틱-콜레스테릭-등방성으로 되는 물질임을 특징으로 하는 두가지 상태로 전환할 수 있는 액정장치.
- 제 1항에 있어서, 적합한 극성의 직류 펄스를 전극에 적용하여 장치의 상태를 광투과 상태와 불투명 상태 사이에서 변화시키는 수단 ; 장치에 입사되는 빛을 측정하는 수단 ; 및 측정된 빛이 예정치를 초과하는 경우에 비-광투과 상태로 장치를 전환시키는 수단을 추가로 포함하는 장치.
- 제 1항에 있어서, 셀 벽상의 정렬상태가 대략 평행하며, 동일한 방향인 장치.
- 제 1항에 있어서, 순 자발분극계수 Ps가 0.1nC/㎠이상인 장치.
- 제 1항에 있어서, 순 자발분극계수 Ps가 1.0nC/㎠이상인 장치.
- 제 1항에 있어서, 스멕틱 피치가 1㎛이상인 장치.
- 제 1항에 있어서, 스멕틱 피치가 액정 초 두께이상인 장치.
- 제 1항에 있어서, 액정 층 두께 d가 15㎛미만인 장치.
- 제 8항에 있어서, 콜레스테릭 피치 p가 콜레스테릭/스멕틱상 전이보다 적어도 0.1℃높은 콜레스테릭상에서 2d인 장치.
- 제 8항에 있어서, 콜레스테릭 피치P가 콜레스테릭/스멕틱상 전이보다 적어도 0.1℃높은 콜레스테릭 상에서 4d인 장치.
- 제 1항에 있어서, 장치작동 온도가 100℃이하인 장치.
- 제 1항에 있어서, 장치작동 온도가 40℃이하인 장치.
- 제 1항에 있어서, 두가지 전환된 상태에서의 액정 분자 방향(D1, D2)사이의 각도가 약 45℃인 장치.
- 제 1항에 있어서, 전극이 형성되어 디지탈 값을 표시하는 장치.
- 제 4항에 있어서, 액정층과 편광자를 통해 주위의 빛을 역반사 시키는 반사기를 추가로 포함하는 장치.
- 제 1항에 있어서, 하나의 편광자가 액정물질에서 다량의 이색성 염료로 대치된 장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868608115A GB8608115D0 (en) | 1986-04-03 | 1986-04-03 | Smectic liquid crystal devices |
GB8608115 | 1986-04-03 | ||
PCT/GB1987/000221 WO1987006021A1 (en) | 1986-04-03 | 1987-04-01 | Smectic liquid crystal devices |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880701394A true KR880701394A (ko) | 1988-07-26 |
KR0141983B1 KR0141983B1 (ko) | 1998-06-15 |
Family
ID=10595594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870701120A KR0141983B1 (ko) | 1986-04-03 | 1987-04-01 | 스멕틱 액정장치 |
Country Status (10)
Country | Link |
---|---|
US (1) | US4969719A (ko) |
EP (1) | EP0301020B1 (ko) |
JP (2) | JP2575768B2 (ko) |
KR (1) | KR0141983B1 (ko) |
CA (1) | CA1281404C (ko) |
DE (1) | DE3787279T2 (ko) |
GB (2) | GB8608115D0 (ko) |
HK (1) | HK148594A (ko) |
MY (1) | MY101914A (ko) |
WO (1) | WO1987006021A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010062815A (ko) * | 1999-12-28 | 2001-07-07 | 미다라이 후지오 | 액정소자의 제조방법 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61249019A (ja) * | 1985-04-26 | 1986-11-06 | Canon Inc | 液晶素子 |
GB8608114D0 (en) | 1986-04-03 | 1986-05-08 | Secr Defence | Smectic liquid crystal devices |
GB8608115D0 (en) * | 1986-04-03 | 1986-05-08 | Secr Defence | Smectic liquid crystal devices |
US5676880A (en) * | 1987-09-18 | 1997-10-14 | Rolic Ag | Ferroelectric liquid crystal cell |
DE3876059D1 (de) | 1987-09-18 | 1992-12-24 | Hoffmann La Roche | Ferroelektrische fluessigkristallzelle. |
JP2566807B2 (ja) * | 1987-11-11 | 1996-12-25 | キヤノン株式会社 | 光学活性物質、その製造方法およびそれを含む液晶組成物 |
JP2610467B2 (ja) * | 1987-11-12 | 1997-05-14 | キヤノン株式会社 | 液晶性化合物、それを含有する液晶組成物およびそれを使用した液晶素子 |
GB8726996D0 (en) * | 1987-11-18 | 1987-12-23 | Secr Defence | Multiplex addressing of ferro-electric liquid crystal displays |
JPH01302226A (ja) * | 1988-05-30 | 1989-12-06 | Alps Electric Co Ltd | 強誘電液晶素子 |
US5231528A (en) * | 1989-06-23 | 1993-07-27 | Hoechst Aktiengesellschaft | Ferroelectric liquid crystal components having high spontaneous polarization and low helical pitch |
US5327273A (en) * | 1989-06-29 | 1994-07-05 | Hoffmann-La Roche Inc. | Bistable ferroelectric liquid crystal display cell |
US5168381A (en) * | 1989-10-30 | 1992-12-01 | University Research Corporation | Smectic liquid crystal devices using SSFLC and electroclinic effect based cells |
GB9002105D0 (en) * | 1990-01-31 | 1990-03-28 | Stc Plc | Ferro electric liquid crystal cells |
JP2982330B2 (ja) * | 1990-04-28 | 1999-11-22 | ソニー株式会社 | 液晶表示素子 |
US5539555A (en) * | 1990-07-20 | 1996-07-23 | Displaytech, Inc. | High contrast distorted helex effect electro-optic devices and tight ferroelectric pitch ferroelectric liquid crystal compositions useful therein |
KR100607007B1 (ko) | 1997-10-08 | 2006-08-01 | 휴렛-팩커드 컴퍼니(델라웨어주법인) | 액정 소자 및 그의 제조 방법 |
JP4605978B2 (ja) * | 2002-08-30 | 2011-01-05 | 富士通株式会社 | 液晶表示装置の製造方法 |
JP4266321B2 (ja) * | 2003-04-18 | 2009-05-20 | フジノン株式会社 | デジタルカメラ |
JP3856141B2 (ja) * | 2003-12-17 | 2006-12-13 | ソニー株式会社 | レンズ鏡筒および撮像装置 |
FR2939916B1 (fr) * | 2008-12-15 | 2011-04-01 | Essilor Int | Element optique a puissance variable |
EP2417481B1 (en) | 2009-04-10 | 2016-11-16 | Ravenbrick, LLC | Thermally switched optical filter incorporating a guest-host architecture |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2966302D1 (en) * | 1978-09-13 | 1983-11-17 | Secr Defence Brit | Improvements in or relating to liquid crystal materials and devices |
US4367924A (en) * | 1980-01-08 | 1983-01-11 | Clark Noel A | Chiral smectic C or H liquid crystal electro-optical device |
JPS58173719A (ja) * | 1982-04-05 | 1983-10-12 | Hitachi Ltd | 液晶表示装置 |
GB2187018B (en) | 1984-02-24 | 1988-02-10 | Colin Robert Francis | Hazzard or security monitoring device |
FR2561657B1 (fr) * | 1984-03-20 | 1988-02-19 | Thomson Csf | Procede d'obtention d'un cristal liquide smectique c chiral ferroelectrique cristal liquide obtenu par ce procede et dispositif de visualisation utilisant ce cristal liquide |
US4634228A (en) * | 1984-05-01 | 1987-01-06 | Hitachi, Ltd. | Ferroelectric liquid crystal cell with rubbed polyimide alignment layer |
JPH0754382B2 (ja) * | 1984-12-27 | 1995-06-07 | 旭硝子株式会社 | 液晶電気光学装置の製造方法 |
JPH0717904B2 (ja) * | 1985-01-29 | 1995-03-01 | 旭硝子株式会社 | 強誘電性液晶組成物 |
JPS61249019A (ja) * | 1985-04-26 | 1986-11-06 | Canon Inc | 液晶素子 |
JPH0750272B2 (ja) * | 1985-05-02 | 1995-05-31 | 旭硝子株式会社 | 強誘電性スメクチック液晶電気光学装置の製造方法 |
JPS62143030A (ja) * | 1985-12-17 | 1987-06-26 | Matsushita Electric Ind Co Ltd | 強誘電性液晶表示装置 |
JPS62141093A (ja) * | 1985-12-17 | 1987-06-24 | Matsushita Electric Ind Co Ltd | 強誘電性液晶表示装置 |
JP2867135B2 (ja) * | 1985-12-20 | 1999-03-08 | セイコーエプソン株式会社 | 強誘電性液晶組成物 |
JPS62205189A (ja) * | 1986-03-05 | 1987-09-09 | Matsushita Electric Ind Co Ltd | 液晶表示装置 |
JPS62205190A (ja) * | 1986-03-05 | 1987-09-09 | Matsushita Electric Ind Co Ltd | 液晶組成物 |
GB8606338D0 (en) | 1986-03-14 | 1986-04-23 | Campbell M D | Rolling apparatus |
GB8608115D0 (en) * | 1986-04-03 | 1986-05-08 | Secr Defence | Smectic liquid crystal devices |
GB8608116D0 (en) * | 1986-04-03 | 1986-05-08 | Secr Defence | Liquid crystal devices |
-
1986
- 1986-04-03 GB GB868608115A patent/GB8608115D0/en active Pending
-
1987
- 1987-04-01 WO PCT/GB1987/000221 patent/WO1987006021A1/en active IP Right Grant
- 1987-04-01 JP JP62502159A patent/JP2575768B2/ja not_active Expired - Fee Related
- 1987-04-01 EP EP87902581A patent/EP0301020B1/en not_active Expired - Lifetime
- 1987-04-01 DE DE87902581T patent/DE3787279T2/de not_active Expired - Fee Related
- 1987-04-01 KR KR1019870701120A patent/KR0141983B1/ko not_active IP Right Cessation
- 1987-04-02 CA CA000533699A patent/CA1281404C/en not_active Expired - Lifetime
- 1987-09-29 MY MYPI87002115A patent/MY101914A/en unknown
-
1988
- 1988-04-01 GB GB8823118A patent/GB2210468B/en not_active Expired - Lifetime
- 1988-12-01 US US07/279,555 patent/US4969719A/en not_active Expired - Lifetime
-
1994
- 1994-12-30 HK HK148594A patent/HK148594A/xx not_active IP Right Cessation
-
1995
- 1995-09-14 JP JP7237355A patent/JP2804908B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010062815A (ko) * | 1999-12-28 | 2001-07-07 | 미다라이 후지오 | 액정소자의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
EP0301020A1 (en) | 1989-02-01 |
JP2804908B2 (ja) | 1998-09-30 |
JPH01500855A (ja) | 1989-03-23 |
US4969719A (en) | 1990-11-13 |
DE3787279T2 (de) | 1994-01-27 |
GB8608115D0 (en) | 1986-05-08 |
DE3787279D1 (de) | 1993-10-07 |
MY101914A (en) | 1992-02-15 |
KR0141983B1 (ko) | 1998-06-15 |
GB8823118D0 (en) | 1988-11-30 |
GB2210468A (en) | 1989-06-07 |
HK148594A (en) | 1995-01-06 |
CA1281404C (en) | 1991-03-12 |
JPH08101368A (ja) | 1996-04-16 |
WO1987006021A1 (en) | 1987-10-08 |
JP2575768B2 (ja) | 1997-01-29 |
GB2210468B (en) | 1990-07-25 |
EP0301020B1 (en) | 1993-09-01 |
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