GB1397047A - Method of collective orientation of the molecules of a mesomorphous liquid crystal interposed between two walls - Google Patents
Method of collective orientation of the molecules of a mesomorphous liquid crystal interposed between two wallsInfo
- Publication number
- GB1397047A GB1397047A GB1306873A GB1306873A GB1397047A GB 1397047 A GB1397047 A GB 1397047A GB 1306873 A GB1306873 A GB 1306873A GB 1306873 A GB1306873 A GB 1306873A GB 1397047 A GB1397047 A GB 1397047A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molecules
- phase
- walls
- alignment
- smectic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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
- G02F1/133—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
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
-
- 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
- C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
-
- 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
- C09K19/22—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and nitrogen atoms as chain links, e.g. Schiff bases
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
Abstract
1397047 Modulating light COMMISSARIAT A L'ENERGIE ATOMIQUE 19 March 1973 [31 March 1972] 13068/73 Heading H4F A homotropic alignment is imposed on a layer of a mesophase between two walls by depositing on the walls a thin crystalline or liquid crystalline film wherein elongate molecules are disposed in parallel planes and oriented transversely to those planes, i.e. a smectic phase or a solid material with layers having the molecular alignment of a smectic phase. As particularly described a crystalline smectic material with A phase (molecules at 90 degrees to the wall) or C phase (molecules inclined to the normal to the wall) alignment forms the film and is deposited by vacuum evaporation to 500 Š. The mesophase layer may be nematic, e.g. p-methoxybenzylidene p-n-butylaniline, 50 Á thick, or a mixture of mesophases, e.g. cholesteric and nematic. The aligned phase may form part of an electro-optic cell, e.g. showing variable birefringence and disposed between polarizers for a colour filter or in a light beam addressing device as in Specification 1,383,969. Use of a magnetic field is also referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7211503A FR2186294B1 (en) | 1972-03-31 | 1972-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1397047A true GB1397047A (en) | 1975-06-11 |
Family
ID=9096169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1306873A Expired GB1397047A (en) | 1972-03-31 | 1973-03-19 | Method of collective orientation of the molecules of a mesomorphous liquid crystal interposed between two walls |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4948346A (en) |
| CH (1) | CH570453A5 (en) |
| FR (1) | FR2186294B1 (en) |
| GB (1) | GB1397047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2324382A (en) * | 1997-04-14 | 1998-10-21 | Merck Patent Gmbh | Homeotropically aligned liquid crystal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60246869A (en) * | 1984-05-23 | 1985-12-06 | 東レ株式会社 | Modification of synthetic fiber |
-
1972
- 1972-03-31 FR FR7211503A patent/FR2186294B1/fr not_active Expired
-
1973
- 1973-03-14 CH CH368573A patent/CH570453A5/xx not_active IP Right Cessation
- 1973-03-19 GB GB1306873A patent/GB1397047A/en not_active Expired
- 1973-03-30 JP JP48036614A patent/JPS4948346A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2324382A (en) * | 1997-04-14 | 1998-10-21 | Merck Patent Gmbh | Homeotropically aligned liquid crystal |
| GB2324382B (en) * | 1997-04-14 | 2001-10-10 | Merck Patent Gmbh | Homeotropically aligned liquid crystal layer and process for the homeotropic alignment of liquid crystals on plastic substrates |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2315541B2 (en) | 1976-05-26 |
| DE2315541A1 (en) | 1973-10-04 |
| JPS4948346A (en) | 1974-05-10 |
| CH570453A5 (en) | 1975-12-15 |
| FR2186294B1 (en) | 1974-12-20 |
| FR2186294A1 (en) | 1974-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |