Patent ID: 7889297

Claim:
A liquid crystal display comprising a vertical alignment mode liquid crystal cell, two polarizers arranged on each side of the liquid crystal cell, and at least one compensating structure located between the liquid crystal cell and one of said polarizers, wherein the polarizers have transmission axes which are perpendicular to each other, and the compensating structure comprises at least one retardation layer comprising supramolecules comprising at least one polycyclic organic compound with a conjugated π-system and functional groups which are capable of forming non-covalent bonds between said supramolecules, the organic compound having a general structural formula I where Sys is an at least partially conjugated substantially planar polycyclic molecular system, X is a carboxylic group —COOH, m is 0, 1, 2, 3 or 4; Y is a sulfonic group —SO 3 H, n is 0, 1, 2, 3 or 4; Z is a carboxamide, p is 0, 1, 2, 3 or 4; Q is a sulfonamide, v is 0, 1, 2, 3 or 4; D is a counterion; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH 3 , C 2 H 5 , Cl, Br, NO 2 , F, CF 3 , CN, OH, OCH 3 , OC 2 H 5 , OCOCH 3 , OCN, SCN, NH 2 , and NHCOCH 3 , and w is 0, 1, 2, 3 or 4, wherein Sys is substantially transparent in the visible spectral range having the general structural formula from the list comprising structures II to IV and VI to XLIX or wherein the organic compound is an acenaphthoquinoxaline derivative having a general structural formula corresponding to one of structures 13 to 25: