Patent ID: 8780318

Claim:
A patterned phase retardation film, comprising: a base substrate; a phase retardation layer disposed on the base substrate and having a plurality of first regions of liquid crystal material and a plurality of second regions of curable resin, wherein the first regions and the second regions are in a grating stripe structure, the first regions are substantially interlaced and parallel to the second regions, and the second regions have a top surface with at least one inclined plane; and a planarization layer for planarizing the phase retardation layer, wherein the first regions provide a first phase retardation and the second regions provide a second phase retardation, and the first phase retardation and the second phase retardation have a phase difference of 180°; and wherein the top surface of one of the second regions is consisted of two inclined planes and the angle of each of the inclined planes with a horizontal plane is in the range of 5° to 15°.