초록 ▼

A composition that includes the following compounds: [ STR 1 ] wherein R.sup.1, which may be the same or different, is a hydrophilic group; R.sup.2, which may the same or different, is selected from the group consisting of electron donating groups, electron withdrawing groups, and electron neutral g

A composition that includes the following compounds: [ STR 1 ] wherein R.sup.1, which may be the same or different, is a hydrophilic group; R.sup.2, which may the same or different, is selected from the group consisting of electron donating groups, electron withdrawing groups, and electron neutral groups; R.sup.3 is a positively charged heteroaromatic ring linked to the triazine backbone through a nitrogen atom in the R.sup.3 ring; and X.sup.- is a counterion. If R.sup.3 is an unsubstituted pyridine, the counterion X.sup.- may be selected from any counterion other than Cl.sup.- and OH.sup.-. Otherwise, the counterion X.sup.- may be selected from any counterion. The compound may be applied to a substrate to form a birefringent optical retardation device. The retardation device may be used in display devices such as computers and the like to correct the phase and polarization states of the display's emitted light and improve image quality at viewing angles away from the normal.

대표청구항 ▼

[ We claim:] [1.] A composition comprising: [ STR 7 ] wherein R.sup.1, which may be the same or different, is a hydrophilic group selected from the group consisting of carboxylic, sulfonic, sulfonamide and phosphate groups;R.sup.2, which may be the same or different, is selected from the group consi

[ We claim:] [1.] A composition comprising: [ STR 7 ] wherein R.sup.1, which may be the same or different, is a hydrophilic group selected from the group consisting of carboxylic, sulfonic, sulfonamide and phosphate groups;R.sup.2, which may be the same or different, is selected from the group consisting of alkyl groups and hydrogen;R.sup.3 is selected from the group consisting of:(a) unsubstituted, positively charged heteroaromatic rings linked to the triazine backbone through a nitrogen atom in the R.sup.3 ring, with the proviso that R.sup.3 is not a pyridine ring, with X.sup.- as a counterion selected from the group consisting of Cl.sup.-, OH.sup.-, SO.sub.4 H.sup.-, CH.sub.3 COO.sup.-, and CF.sub.3 COO.sup.-, BF.sub.4.sup.31 , PF.sub.6.sup.-, SbF.sub.6.sup.-, CH.sub.3 SO.sub.3.sup.31 , CF.sub.3 SO.sub.3.sup.-, and PhCO.sub.2.sup.- ;(b) substituted, positively charged heteroaromatic rings linked to the triazine backbone through a nitrogen atom in the R.sup.3 ring, wherein the substituents for R3 are selected from the group consisting of alkyl, carboxyl, amino, alkoxy, thio, cyano, amide and ester groups, with X.sup.- as a counterion selected from the group consisting of Cl.sup.-, OH.sup.-, SO.sub.4 H.sup.-, CH.sub.3 COO.sup.-, and CF.sub.3 COO.sup.-, BF.sub.4.sup.-, PF.sub.6.sup.-, SbF.sub.6.sup.-, CH.sub.3 SO.sub.3.sup.-, CF.sub.3 SO.sub.3.sup.-, and PhCO.sub.2.sup.- ; and(c) unsubstituted, positively charged pyridine rings linked to the triazine backbone through the nitrogen atom in the R.sup.3 ring, with X.sup.- as a counterion selected from the group consisting of SO.sub.4 H.sup.-, CH.sub.3 COO.sup.-, and CF.sub.3 COO.sup.-, BF.sub.4.sup.-, PF.sub.6.sup.-, SbF.sub.6.sup.-, CH.sub.3 SO.sub.3.sup.-, CF.sub.3 SO.sub.3.sup.-, and PhCO.sub.2.sup.-.