JPS55157676A - Composition for liquid crystal color display element - Google Patents
Composition for liquid crystal color display elementInfo
- Publication number
- JPS55157676A JPS55157676A JP6399679A JP6399679A JPS55157676A JP S55157676 A JPS55157676 A JP S55157676A JP 6399679 A JP6399679 A JP 6399679A JP 6399679 A JP6399679 A JP 6399679A JP S55157676 A JPS55157676 A JP S55157676A
- Authority
- JP
- Japan
- Prior art keywords
- composition
- color display
- dye
- liquid crystal
- display element
- 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
- 239000000203 mixture Substances 0.000 title abstract 4
- 239000004973 liquid crystal related substance Substances 0.000 title 1
- 239000004988 Nematic liquid crystal Substances 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 239000001000 anthraquinone dye Substances 0.000 abstract 2
- 239000000975 dye Substances 0.000 abstract 2
- MSSQDESMUMSQEN-UHFFFAOYSA-N 1-amino-2-bromo-4-hydroxyanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(O)=CC(Br)=C2N MSSQDESMUMSQEN-UHFFFAOYSA-N 0.000 abstract 1
- RZCQJZFWJZHMPK-UHFFFAOYSA-N 4-(4-propoxyphenyl)benzonitrile Chemical group C1=CC(OCCC)=CC=C1C1=CC=C(C#N)C=C1 RZCQJZFWJZHMPK-UHFFFAOYSA-N 0.000 abstract 1
- HHPCNRKYVYWYAU-UHFFFAOYSA-N 4-cyano-4'-pentylbiphenyl Chemical group C1=CC(CCCCC)=CC=C1C1=CC=C(C#N)C=C1 HHPCNRKYVYWYAU-UHFFFAOYSA-N 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000004040 coloring Methods 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
Landscapes
- Liquid Crystal (AREA)
Abstract
PURPOSE: The title composition, usable for a color display on a watch or electronic calculator by the guest-host method, having improved coloring property, dichromatic ratio and durability, and comprising a specific anthraquinone dye and nematic liquid crystals.
CONSTITUTION: A composition comprising (A) an anthraquinone dye of formula I [X and Y are amino or hydroxy groups; Z is methoxy, formula II or III [R1 is H, halogen atom or 1W15C (branched) alkyl group] or -NH-R2 [R2 is 1W15C (branched) alkyl group)] and (B) nematic liquid crystals, e.g. a mixture of 4- cyano-4'-n-pentylbiphenyl with 4-cyano-4'-n-propoxybiphenyl. The amount of (A) is preferably 0.1W3% based on (B). The dye (A) is obtained by recrystallizing a crude dye prepared from phenol and 1-amino-2-bromo-4-hydroxyanthraquinone from an organic solvent.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6399679A JPS55157676A (en) | 1979-05-25 | 1979-05-25 | Composition for liquid crystal color display element |
| US06/129,315 US4360447A (en) | 1979-03-16 | 1980-03-11 | Composition for liquid crystal color display elements |
| CH203180A CH643290A5 (en) | 1979-03-16 | 1980-03-14 | MIXTURE FOR COLOUR indicating, nematic liquid-INDICATORS. |
| DE19803009974 DE3009974A1 (en) | 1979-03-16 | 1980-03-14 | COMPOSITION FOR LIQUID CRYSTAL COLOR DISPLAY ELEMENTS |
| GB8008667A GB2051114B (en) | 1979-03-16 | 1980-03-14 | Composition for liquid crystal colour display elements |
| FR8005873A FR2451393A1 (en) | 1979-03-16 | 1980-03-17 | COMPOSITION FOR LIQUID CRYSTAL COLOR DISPLAY ELEMENTS |
| US06/405,267 US4473486A (en) | 1979-03-16 | 1982-08-04 | Composition for liquid crystal color display elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6399679A JPS55157676A (en) | 1979-05-25 | 1979-05-25 | Composition for liquid crystal color display element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55157676A true JPS55157676A (en) | 1980-12-08 |
| JPS6147193B2 JPS6147193B2 (en) | 1986-10-17 |
Family
ID=13245379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6399679A Granted JPS55157676A (en) | 1979-03-16 | 1979-05-25 | Composition for liquid crystal color display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55157676A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161488A (en) * | 1980-04-18 | 1981-12-11 | Bayer Ag | Liquid crystal substance containing anthraquinone dye |
| JPS5738876A (en) * | 1980-08-21 | 1982-03-03 | Mitsubishi Chem Ind Ltd | Liquid crystal composition |
| JPS57117581A (en) * | 1981-01-12 | 1982-07-22 | Sumitomo Chem Co Ltd | Liquid crystal display element |
-
1979
- 1979-05-25 JP JP6399679A patent/JPS55157676A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161488A (en) * | 1980-04-18 | 1981-12-11 | Bayer Ag | Liquid crystal substance containing anthraquinone dye |
| JPS5738876A (en) * | 1980-08-21 | 1982-03-03 | Mitsubishi Chem Ind Ltd | Liquid crystal composition |
| JPS57117581A (en) * | 1981-01-12 | 1982-07-22 | Sumitomo Chem Co Ltd | Liquid crystal display element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6147193B2 (en) | 1986-10-17 |
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