Claims
- 1. A dioxan compound having the formula: ##STR67## where R.sub.1 represents an alkyl group.
- 2. A dioxan compound as claimed in claim 1 where R.sub.1 represents an n-alkyl group having 1 to 9 carbon atoms.
- 3. A liquid crystal device of the type that uses a nematic liquid crystal material, including two dielectric substrates at least one of which is optically transparent, a layer of liquid crystal material sandwiched between the substrates, and electrodes on the inner surfaces of the substrates to enable an electric field to be applied across the layer of liquid crystal material to provide an electro-optic effect therein, the improvement in which the liquid crystal is a material which includes at least one compound as claimed in claim 1.
- 4. A liquid crystal device of the type that uses a nematic liquid crystal material, including two dielectric substrates at least one of which is optically transparent, a layer of liquid crystal material sandwiched between the substrates, and electrodes on the inner surfaces of the substrates to enable an electric field to be applied across the layer of liquid crystal material to provide an electro-optic effect therein, the improvement in which the liquid crystal is a material which includes at least one compound as claimed in claim 2.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8217355 |
Jun 1982 |
GBX |
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Parent Case Info
This is a division of application Ser. No. 501,783 filed June 7, 1983 allowed Nov. 29, 1984, now U.S. Pat. No. 4,512,636.
US Referenced Citations (13)
Foreign Referenced Citations (8)
Number |
Date |
Country |
56501 |
Jul 1982 |
EPX |
58512 |
Aug 1982 |
EPX |
58981 |
Sep 1982 |
EPX |
72204 |
Feb 1983 |
EPX |
84194 |
Jul 1983 |
EPX |
3233641 |
Mar 1983 |
DEX |
2067188 |
Jul 1981 |
GBX |
2086385 |
May 1982 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
501783 |
Jun 1983 |
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