FR2294462A2 - Procede d'alignement de cristaux liquides et son application aux cellules de visualisation du type " nematique en helice " - Google Patents
Procede d'alignement de cristaux liquides et son application aux cellules de visualisation du type " nematique en helice "Info
- Publication number
- FR2294462A2 FR2294462A2 FR7441132A FR7441132A FR2294462A2 FR 2294462 A2 FR2294462 A2 FR 2294462A2 FR 7441132 A FR7441132 A FR 7441132A FR 7441132 A FR7441132 A FR 7441132A FR 2294462 A2 FR2294462 A2 FR 2294462A2
- Authority
- FR
- France
- Prior art keywords
- polymer layer
- electrodes
- orientation
- org
- liquid crystals
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (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 |
JP13133175A JPS5167149A (en) | 1974-10-31 | 1975-10-31 | Ekishono seiretsuhoho |
DE19752548925 DE2548925A1 (de) | 1974-10-31 | 1975-10-31 | Verfahren zur ausrichtung von fluessigkristallen |
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 true FR2294462A2 (fr) | 1976-07-09 |
FR2294462B2 FR2294462B2 (fr) | 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 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0059790A1 (fr) * | 1981-02-27 | 1982-09-15 | Siemens Aktiengesellschaft | Procédé de préparation de couches minces de polyimide |
EP0060329A1 (fr) * | 1981-02-27 | 1982-09-22 | Siemens Aktiengesellschaft | Procédé de préparation de couches d'orientation pour affichages à cristaux liquides ainsi que affichages à cristaux liquides contenant ces couches d'orientation |
EP0060330A1 (fr) * | 1981-02-27 | 1982-09-22 | Siemens Aktiengesellschaft | Procédé de prépartion de couches d'orientation pour affichages à cristaux liquides ainsi qu'affichages contenant ces couches d'orientation |
-
1974
- 1974-12-13 FR FR7441132A patent/FR2294462A2/fr active Granted
Non-Patent Citations (1)
Title |
---|
JOURNAL OF COLLOID AND INTERFACE SCIENCE" VOLUME 27, NO. 4, PAGES 751-760 AUGUST 1968 ) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0059790A1 (fr) * | 1981-02-27 | 1982-09-15 | Siemens Aktiengesellschaft | Procédé de préparation de couches minces de polyimide |
EP0060329A1 (fr) * | 1981-02-27 | 1982-09-22 | Siemens Aktiengesellschaft | Procédé de préparation de couches d'orientation pour affichages à cristaux liquides ainsi que affichages à cristaux liquides contenant ces couches d'orientation |
EP0060330A1 (fr) * | 1981-02-27 | 1982-09-22 | Siemens Aktiengesellschaft | Procédé de prépartion de couches d'orientation pour affichages à cristaux liquides ainsi qu'affichages contenant ces couches d'orientation |
Also Published As
Publication number | Publication date |
---|---|
FR2294462B2 (fr) | 1978-08-25 |
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