IT1202798B - Cella di visualizzazione a cristalli liquidi a elettrodi interni - Google Patents
Cella di visualizzazione a cristalli liquidi a elettrodi interniInfo
- Publication number
- IT1202798B IT1202798B IT29607/78A IT2960778A IT1202798B IT 1202798 B IT1202798 B IT 1202798B IT 29607/78 A IT29607/78 A IT 29607/78A IT 2960778 A IT2960778 A IT 2960778A IT 1202798 B IT1202798 B IT 1202798B
- Authority
- IT
- Italy
- Prior art keywords
- liquid crystal
- crystal display
- internal electrodes
- display cell
- cell
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title 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
- G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
-
- 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
- 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
- G02F1/13781—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 using smectic liquid crystals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
- C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
- C09K2019/122—Ph-Ph
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K2019/528—Surfactants
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4681977A GB1569686A (en) | 1977-11-10 | 1977-11-10 | Smectic display cell |
GB4682077A GB1569687A (en) | 1977-11-10 | 1977-11-10 | Smectic display cell |
GB4682177A GB1569688A (en) | 1977-11-10 | 1977-11-10 | Smectic display cell |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7829607A0 IT7829607A0 (it) | 1978-11-09 |
IT1202798B true IT1202798B (it) | 1989-02-09 |
Family
ID=27259970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT29607/78A IT1202798B (it) | 1977-11-10 | 1978-11-09 | Cella di visualizzazione a cristalli liquidi a elettrodi interni |
Country Status (3)
Country | Link |
---|---|
US (1) | US4291948A (it) |
JP (1) | JPS5952406B2 (it) |
IT (1) | IT1202798B (it) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4702561A (en) * | 1977-04-11 | 1987-10-27 | Minnesota Mining And Manufacturing Company | Pleochroic dyes and electro-optical displays therewith |
JPS54153053A (en) * | 1978-05-22 | 1979-12-01 | Nec Corp | Liquid crystal cell and driving method thereof |
GB2091753B (en) * | 1981-01-23 | 1984-08-22 | Standard Telephones Cables Ltd | Use of 1,4-b15 (hydrocarbylamino) anthraquinos as dyes in the smetic layers of a liquid crystal cell |
US4514045A (en) * | 1981-06-22 | 1985-04-30 | Minnesota Mining And Manufacturing Company | Helichromic-smectic liquid crystal compositions and display cells |
JPS5887535A (ja) * | 1981-11-20 | 1983-05-25 | Sony Corp | 液晶表示装置 |
JPS58159581A (ja) * | 1982-03-17 | 1983-09-21 | アルプス電気株式会社 | カラ−液晶表示装置 |
EP0106386A3 (de) * | 1982-09-23 | 1985-03-13 | BBC Brown Boveri AG | Verfahren zur Ansteuerung einer multiplexierbaren, bistabilen Flüssigkristallanzeige |
US4530572A (en) * | 1982-12-30 | 1985-07-23 | Minnesota Mining And Manufacturing Company | Substituted anthraquinone-type isotropic dyes for liquid crystal display devices |
US4561726A (en) * | 1983-07-29 | 1985-12-31 | At&T Bell Laboratories | Alignment of ferroelectric LCDs |
JPS60501132A (ja) * | 1983-08-17 | 1985-07-18 | クリスタルビジヨン・インコ−ポレイテツド | 液晶表示装置 |
GB8324642D0 (en) * | 1983-09-14 | 1983-10-19 | Univ Manchester | Liquid crystal storage device |
US4585310A (en) * | 1983-12-12 | 1986-04-29 | International Business Machines Corporation | Alignment layer orientation in raster scan thermally addressed smectic liquid crystal displays |
JPS60188925A (ja) * | 1984-03-09 | 1985-09-26 | Canon Inc | 光学変調素子の製造法 |
US4617646A (en) * | 1984-06-29 | 1986-10-14 | International Business Machines Corporation | Electric field gradient excited liquid crystal cell having bistability |
US4820026A (en) * | 1986-03-20 | 1989-04-11 | Canon Kabushiki Kaisha | Ferroelectric liquid crystal device with modified polyvinyl alcohol alignment film |
GB8608116D0 (en) * | 1986-04-03 | 1986-05-08 | Secr Defence | Liquid crystal devices |
CA1294954C (en) * | 1986-12-26 | 1992-01-28 | Masakatsu Nakatsuka | Optically active naphthalene derivatives |
GB8807090D0 (en) * | 1988-03-24 | 1988-04-27 | Secr Defence | Liquid crystal colour display |
KR100218983B1 (ko) * | 1995-10-24 | 1999-09-01 | 손욱 | 어카이랄스멕틱 시 액정 물질을 이용한 액정 표시 장치 |
JP3452755B2 (ja) * | 1997-04-07 | 2003-09-29 | シャープ株式会社 | 液晶表示装置 |
JP2004045784A (ja) * | 2002-07-12 | 2004-02-12 | Sony Corp | 液晶パネルおよびその製造方法 |
JP5771682B2 (ja) | 2010-03-15 | 2015-09-02 | ケンブリッジ・エンタープライズ・リミテッドCambridge Enterprise Limited | スメクチックa光学素子のための液晶配合および構造 |
GB201100375D0 (en) | 2011-01-10 | 2011-02-23 | Cambridge Entpr Ltd | Smectic A compositions for use in electrical devices |
PL240079B1 (pl) | 2017-10-31 | 2022-02-14 | Wojskowa Akad Tech | Smektyczna mieszanina ciekłokrystaliczna domieszkowana związkami jonowymi, sposób jej otrzymywania oraz jej zastosowanie |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3775757A (en) * | 1971-11-17 | 1973-11-27 | Int Liquid Xtal Co | Liquid crystal memory, system utilizing the memory and methods of constructing and operating such a memory |
US3796999A (en) * | 1972-10-19 | 1974-03-12 | Bell Telephone Labor Inc | Locally erasable thermo-optic smectic liquid crystal storage displays |
JPS5328102B2 (it) * | 1973-04-16 | 1978-08-12 | ||
DD105701A1 (it) * | 1973-07-02 | 1974-05-05 | ||
US3960751A (en) * | 1973-09-19 | 1976-06-01 | Matsushita Electric Industrial Co., Ltd. | Electro-optical display element |
US4009934A (en) * | 1974-01-11 | 1977-03-01 | Eastman Kodak Company | Electro-optic display devices and methods |
US4084884A (en) * | 1974-02-21 | 1978-04-18 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal devices |
FR2275087A1 (fr) * | 1974-06-14 | 1976-01-09 | Thomson Csf | Dispositif de reproduction d'images en noir et blanc utilisant un materiau presentant une phase smectique et systeme de teletransmission et telereprographie mettant en oeuvre ce dispositif |
FR2284237A1 (fr) * | 1974-09-06 | 1976-04-02 | Thomson Csf | Dispositif de teleprojection et de telereprographie d'images en couleurs |
JPS5175540A (ja) * | 1974-12-26 | 1976-06-30 | Suwa Seikosha Kk | Ekishohyojisochi |
US4145114A (en) * | 1975-06-17 | 1979-03-20 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Pleochroic dyes |
GB1506256A (en) * | 1975-08-21 | 1978-04-05 | Standard Telephones Cables Ltd | Temperature sensitive switch |
GB1557199A (en) * | 1976-01-06 | 1979-12-05 | Standard Telephones Cables Ltd | Liquid crystal display cells |
GB1543599A (en) * | 1976-05-04 | 1979-04-04 | Standard Telephones Cables Ltd | Liquid crystal cell |
US4148805A (en) * | 1976-06-01 | 1979-04-10 | Ciba-Geigy Ag | Naphtholactam dyestuffs |
US4113647A (en) * | 1976-08-13 | 1978-09-12 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystalline materials |
GB1587819A (en) * | 1976-08-13 | 1981-04-08 | Secr Defence | Aromatic diester liquid crystal materials |
GB1596012A (en) * | 1976-08-16 | 1981-08-19 | Secr Defence | Optically active liquid crystal materials and liquid crystal devices containing them |
GB1576106A (en) * | 1976-11-25 | 1980-10-01 | Secr Defence | Temperature compensated liquid crystal devices |
FR2373076A1 (fr) * | 1976-12-03 | 1978-06-30 | Thomson Csf | Cellule a cristal liquide |
JPS6045406B2 (ja) * | 1977-05-24 | 1985-10-09 | 日本電気株式会社 | 投射型液晶表示装置 |
US4128313A (en) * | 1977-08-18 | 1978-12-05 | General Electric Company | Liquid crystal display with dark characters on light background |
DE2862064D1 (en) * | 1977-10-14 | 1982-11-25 | Bdh Chemicals Ltd | Pleochroic dyes suitable for use in solution with liquid crystal materials for electro-optic device applications |
GB2009219B (en) * | 1977-11-02 | 1982-04-28 | Secr Defence | Liquid ctystal material mixtures and devices incorporating such mixtures |
GB1549584A (en) | 1978-03-02 | 1979-08-08 | Standard Telephones Cables Ltd | Temperature responsive device |
-
1978
- 1978-10-30 US US05/955,869 patent/US4291948A/en not_active Expired - Lifetime
- 1978-11-09 IT IT29607/78A patent/IT1202798B/it active
- 1978-11-10 JP JP53137991A patent/JPS5952406B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5952406B2 (ja) | 1984-12-19 |
IT7829607A0 (it) | 1978-11-09 |
JPS5476246A (en) | 1979-06-18 |
US4291948A (en) | 1981-09-29 |
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