DE2507524C2 - Flüssigkristallzelle und Verfahren zu ihrer Herstellung - Google Patents
Flüssigkristallzelle und Verfahren zu ihrer HerstellungInfo
- Publication number
- DE2507524C2 DE2507524C2 DE19752507524 DE2507524A DE2507524C2 DE 2507524 C2 DE2507524 C2 DE 2507524C2 DE 19752507524 DE19752507524 DE 19752507524 DE 2507524 A DE2507524 A DE 2507524A DE 2507524 C2 DE2507524 C2 DE 2507524C2
- Authority
- DE
- Germany
- Prior art keywords
- liquid crystal
- molecules
- layer
- platelets
- twist
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 75
- 210000002858 crystal cell Anatomy 0.000 title description 14
- 238000000034 method Methods 0.000 title description 12
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000000463 material Substances 0.000 claims description 72
- 239000000203 mixture Substances 0.000 claims description 10
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 claims description 9
- 230000003098 cholesteric effect Effects 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 239000011149 active material Substances 0.000 claims description 5
- 230000002135 cholesterogenic effect Effects 0.000 claims description 4
- 210000004027 cell Anatomy 0.000 description 25
- 239000011521 glass Substances 0.000 description 13
- 239000011295 pitch Substances 0.000 description 10
- 238000007740 vapor deposition Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 8
- 230000005684 electric field Effects 0.000 description 7
- 230000010287 polarization Effects 0.000 description 6
- 239000004988 Nematic liquid crystal Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 238000009304 pastoral farming Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 235000012000 cholesterol Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 125000004093 cyano group Chemical group *C#N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 244000283070 Abies balsamea Species 0.000 description 1
- 235000007173 Abies balsamea Nutrition 0.000 description 1
- 239000004858 Canada balsam Substances 0.000 description 1
- 244000299507 Gossypium hirsutum Species 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- WCLNGBQPTVENHV-MKQVXYPISA-N cholesteryl nonanoate Chemical compound C([C@@H]12)C[C@]3(C)[C@@H]([C@H](C)CCCC(C)C)CC[C@H]3[C@@H]1CC=C1[C@]2(C)CC[C@H](OC(=O)CCCCCCCC)C1 WCLNGBQPTVENHV-MKQVXYPISA-N 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 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
- 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
- G02F1/1396—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 the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
-
- 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
- C09K19/126—Compounds containing at least one asymmetric carbon atom
-
- 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
- C09K19/58—Dopants or charge transfer agents
- C09K19/586—Optically active dopants; chiral dopants
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB804274A GB1472247A (en) | 1974-02-21 | 1974-02-21 | Liquid crystal devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2507524A1 DE2507524A1 (de) | 1976-01-22 |
| DE2507524C2 true DE2507524C2 (de) | 1985-04-18 |
Family
ID=9844663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752507524 Expired DE2507524C2 (de) | 1974-02-21 | 1975-02-21 | Flüssigkristallzelle und Verfahren zu ihrer Herstellung |
Country Status (5)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1478592A (en) * | 1974-03-01 | 1977-07-06 | Secr Defence | Liquid crystal devices |
| DE2527485C2 (de) | 1975-06-20 | 1985-06-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Elektrisch steuerbares Anzeigeelement |
| JPS5525006A (en) * | 1978-08-09 | 1980-02-22 | Citizen Watch Co Ltd | Liquid crystal display device |
| GB2044975B (en) | 1979-01-26 | 1982-12-08 | Secr Defence | Pseudo-analogue display |
| JPS55127520A (en) * | 1979-03-26 | 1980-10-02 | Citizen Watch Co Ltd | Liquid crystal display element |
| JPS5692518A (en) * | 1979-12-26 | 1981-07-27 | Sharp Corp | Liquid crystal display device |
| JPS5792316A (en) * | 1980-11-28 | 1982-06-08 | Seiko Epson Corp | Manufacture of phase transition type liquid crystal display device |
| GB8319849D0 (en) | 1983-07-22 | 1983-08-24 | Secr Defence | Compounds containing fluorobiphenyl group |
| JP2855649B2 (ja) * | 1989-04-27 | 1999-02-10 | セイコーエプソン株式会社 | 投射型表示装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT946051B (it) * | 1970-12-04 | 1973-05-21 | Hoffmann La Roche | Cellula ottica |
| US3834792A (en) * | 1972-04-10 | 1974-09-10 | Ncr | Alignment film for a liquid crystal display cell |
-
1974
- 1974-02-21 GB GB804274A patent/GB1472247A/en not_active Expired
-
1975
- 1975-02-20 FR FR7505287A patent/FR2262319B1/fr not_active Expired
- 1975-02-21 JP JP50022358A patent/JPS5810729B2/ja not_active Expired
- 1975-02-21 CH CH220675A patent/CH579285A5/xx not_active IP Right Cessation
- 1975-02-21 DE DE19752507524 patent/DE2507524C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1472247A (en) | 1977-05-04 |
| FR2262319A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-09-19 |
| JPS5810729B2 (ja) | 1983-02-26 |
| JPS50143557A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-11-19 |
| DE2507524A1 (de) | 1976-01-22 |
| CH579285A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-08-31 |
| FR2262319B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |