Compositions for liquid crystal displays
View Patent ↗In an exemplary embodiment of the present invention, the content ratio of polar and neutral compounds in a liquid crystal layer is controlled, or a coupling agent that is well adapted to those compounds is used as a material for a sealant, thereby stably maintaining the display quality of the liquid crystal display even at low temperatures.
1. A liquid crystal display comprising:
a first substrate;
a second substrate facing the first substrate;
a pair of field generating electrodes disposed on at least one of the first and second substrates;
a sealant disposed on at least one of the first and second substrates; and
a liquid crystal layer interposed between the first and second substrates,
wherein the sealant comprises a coupling agent represented by the following Formula 11:
2. The liquid crystal display of claim 1 , wherein the liquid crystal layer comprises at least one of neutral compounds represented by the following Formulas 6 to 8:
3. The liquid crystal display of claim 2 , wherein the liquid crystal layer comprises about 28-32 wt % of the neutral compound represented by Formula 6.
4. The liquid crystal display of claim 3 , wherein the liquid crystal layer comprises about 5-10 wt % of the neutral compound represented by Formula 7.
5. The liquid crystal display of claim 4 , wherein the liquid crystal layer comprises polar compounds represented by the following Formulas 4 and 5:
and in Formulas 4 and 5, each of R 4 and R 5 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.
6. The liquid crystal display of claim 5 , wherein the liquid crystal layer comprises a neutral compound represented by the following Formula 9:
and in Formula 9, each of R 6 and R 7 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.
7. The liquid crystal display of claim 2 , wherein the liquid crystal layer comprises about 10-14 wt % of the neutral compound represented by Formula 8.
8. The liquid crystal display of claim 2 , wherein the liquid crystal layer comprises a polar compound represented by the following Formula 1, and at least one of polar compounds represented by the following Formulas 2 and 3:
and in Formulas 1 to 3, each of R 1 to R 3 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.
9. A liquid crystal display comprising:
a first substrate;
a second substrate facing the first substrate;
a pair of field generating electrodes disposed on at least one of the first and second substrates;
a sealant disposed on at least one of the first and second substrates; and
a liquid crystal layer interposed between the first and second substrates,
wherein the liquid crystal layer comprises a neutral compound represented by the following Formula 6:
and the content of the neutral compound represented by Formula 6 is about 28-32 wt % of the liquid crystal layer.
10. The liquid crystal display of claim 9 , wherein the liquid crystal layer comprises further about 5-10 wt % of a neutral compound represented by the following Formula 7:
11. The liquid crystal display of claim 10 , wherein the liquid crystal layer comprises further polar compounds represented by the following Formulas 4 and 5:
and in Formulas 4 and 5, each of R 4 and R 5 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.
12. The liquid crystal display of claim 11 , wherein the liquid crystal layer comprises further a neutral compound represented by the following Formula 9:
and in Formula 9, each of R 6 and R 7 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.
13. The liquid crystal display of claim 9 , wherein the liquid crystal layer comprises further about 10-14 wt % of a neutral compound represented by the following Formula 8:
14. The liquid crystal display of claim 9 , wherein the liquid crystal layer comprises further polar compounds represented by Formulas 4 and 5:
and in Formulas 4 and 5, each of R 4 and R 5 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.
15. The liquid crystal display of claim 9 , wherein the liquid crystal layer comprises further a compound represented by Formula 9:
and in Formula 9, each of R 6 and R 7 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.
16. The liquid crystal display of claim 9 , wherein the liquid crystal layer comprises further a polar compound represented by the following Formula 1, and at least one of polar compounds represented by the following Formulas 2 and 3:
and in Formulas 1 to 3, each of R 1 to R 3 , being the same or different from each other, are one of an alkyl group and an alkoxy group with a carbon number of 1 to 13.