FR2294462B2 - - Google Patents
Info
- Publication number
- FR2294462B2 FR2294462B2 FR7441132A FR7441132A FR2294462B2 FR 2294462 B2 FR2294462 B2 FR 2294462B2 FR 7441132 A FR7441132 A FR 7441132A FR 7441132 A FR7441132 A FR 7441132A FR 2294462 B2 FR2294462 B2 FR 2294462B2
- Authority
- FR
- France
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
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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
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7441132A FR2294462A2 (fr) | 1974-12-13 | 1974-12-13 | Procede d'alignement de cristaux liquides et son application aux cellules de visualisation du type " nematique en helice " |
| GB4509975A GB1526246A (en) | 1974-10-31 | 1975-10-30 | Method of aligning liquid crystalline materials and its application to helical nematic display cells |
| DE19752548925 DE2548925A1 (de) | 1974-10-31 | 1975-10-31 | Verfahren zur ausrichtung von fluessigkristallen |
| JP13133175A JPS5167149A (en) | 1974-10-31 | 1975-10-31 | Ekishono seiretsuhoho |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7441132A FR2294462A2 (fr) | 1974-12-13 | 1974-12-13 | Procede d'alignement de cristaux liquides et son application aux cellules de visualisation du type " nematique en helice " |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2294462A2 FR2294462A2 (fr) | 1976-07-09 |
| FR2294462B2 true FR2294462B2 (OSRAM) | 1978-08-25 |
Family
ID=9146140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7441132A Granted FR2294462A2 (fr) | 1974-10-31 | 1974-12-13 | Procede d'alignement de cristaux liquides et son application aux cellules de visualisation du type " nematique en helice " |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2294462A2 (OSRAM) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3107519A1 (de) * | 1981-02-27 | 1982-09-16 | Siemens AG, 1000 Berlin und 8000 München | "verfahren zur herstellung von orietierungsschichten fuer fluessigkristalldisplays sowie orientierungsschichten aufweisende fluessigkeitskristalle" |
| DE3107520A1 (de) * | 1981-02-27 | 1982-09-16 | Siemens AG, 1000 Berlin und 8000 München | "verfahren zur herstellung von orientierungsschichten fuer fluessigkristalldisplays sowie orientierungsschichten aufweisende fluessigkristalldisplays" |
| DE3107633A1 (de) * | 1981-02-27 | 1982-09-16 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur herstellung duenner polyimidschichten" |
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1974
- 1974-12-13 FR FR7441132A patent/FR2294462A2/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2294462A2 (fr) | 1976-07-09 |