Claims
- 1. A liquid crystal composition comprising:
- (1) a first component consisting of at least one compound selected from the compounds represented by the general formula (I): ##STR15## R.sup.1 is an alkyl group having 1 to 5 carbon atoms and R.sup.2 is an alkyl group having 2 to 8 carbon atoms, and at least one compound selected from the compounds represented by the general formula (II): ##STR16## is the same as defined above; and R.sup.3 is an alkyl group having 1 to 5 carbon atoms, and
- (2) a second component consisting of at least one compound selected from the compounds represented by the general formula (III): ##STR17## is the same as defined above; R.sup.4 is an alkyl group having 2 to 8 carbon atoms; R.sup.5 is H or F; and R.sup.6 is an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, F or a CN group.
- 2. A composition as claimed in claim 1 wherein the proportions of the first component and the second component are 20 to 50% by weight and 10 to 70% by weight, respectively, based on the total weight of the composition, and the total amount of the first and second components is at least 40% by weight of the composition.
- 3. A composition as claimed in claim 1, further including a third component consisting of at least one compound selected from the compounds represented by the general formula (IV): ##STR18## wherein R.sup.7 is an alkyl group having 2 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms.
- 4. A composition as claimed in claim 3 wherein the the proportions of the first component, the second component and the third component are 20 to 50% by weight, 10 to 70% by weight and 10 to 40% by weight, respectively, based on the total weight of the composition, and the total amount of the first, second and third components is at least 50% by weight of the composition.
- 5. A composition as claimed in claim 1, further including at least one known nematic liquid crystal compound or mesogenic compound.
- 6. A liquid crystal display element including a cell and a liquid crystal composition comprising:
- (1) a first component consisting of at least one compound selected from the compounds represented by the general formula (I): ##STR19## R.sup.1 is an alkyl group having 1 to 5 carbon atoms and R.sup.2 is an alkyl group having 2 to 8 carbon atoms, and at least one compound selected from the compounds represented by the general formula (II): ##STR20## is the same as defined above; and R.sup.3 is an alkyl group having 1 to 5 carbon atoms, and
- (2) a second component consisting of at least one compound selected from the compounds represented by the general formula (III): ##STR21## is the same as defined above; R.sup.4 is an alkyl group having 2 to 8 carbon atoms; R.sup.5 is H or F; and R.sup.6 is an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, F or a CN group.
- 7. A composition as claimed in claim 1 wherein ##STR22## in general formula (I).
- 8. A composition as claimed in claim 1 wherein R.sup.1 is a linear alkyl group having 1 to 3 carbon atoms.
- 9. A composition as claimed in claim 1 wherein R.sup.2 is a linear alkyl group having 2 to 5 carbon atoms.
- 10. A composition as claimed is claim 1 wherein ##STR23## in general formula (II).
- 11. A composition as claimed in claim 1 wherein R.sup.3 is a linear alkyl group having 1 to 3 carbon atoms.
- 12. A composition as claimed in claim 1 wherein ##STR24## in general formula (III).
- 13. A composition as claimed in claim 1 wherein R.sup.5 is H.
- 14. A composition as claimed in claim 1 wherein R.sup.6 is CN.
- 15. A composition as claimed in claim 3 wherein R.sup.7 is a linear alkyl group having 2 to 7 carbon atoms.
- 16. A composition as claimed in claim 3 wherein R.sup.7 is a linear alkenyl group having 3 to 5 carbon atoms.
- 17. A composition as claimed in claim 3 wherein said alkenyl group has an inner double bond in a trans configuration.
- 18. A liquid crystal display element as claimed in claim 6 wherein said composition further includes a third component consisting of at least one compound selected from the compounds represented by the general formula (IV): ##STR25## wherein R.sup.7 is an alkyl group having 2 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms.
- 19. A liquid crystal display element as claimed in claim 6 wherein said display element has an SBE mode.
- 20. A composition as claimed in claim 1 for use in an SBE mode.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1-322889 |
Dec 1989 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/624,567, filed Dec. 11, 1990 now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0364588 |
Apr 1990 |
EPX |
8903867 |
May 1989 |
WOX |
Continuations (1)
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Number |
Date |
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Parent |
624567 |
Dec 1990 |
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