Patent ID: 7012662
Filing Date: 2006-03-14
Classification: G02F

Abstract:
1. A liquid crystal display comprising: a first substrate having inner and outer surfaces; a transparent electrode formed on the inner surface of the first substrate; a reflective electrode formed on the transparent electrode and having a transmissive window overlapping a portion of the transparent electrode; a thin film transistor connected to the transparent electrode and the reflective electrode; a second substrate having an inner surface facing the inner surface of the first substrate and an outer surface; a common electrode formed on the inner surface of the second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizing film disposed on the outer surface of the first substrate; first and second compensation films interposed between the first substrate and the first polarizing film; a second polarizing film disposed on the outer surface of the second substrate; and third and fourth compensation films interposed between the second substrate and the second polarizing film, wherein liquid crystal molecules of the liquid crystal layer are aligned twisted from the first substrate to the second substrate by a predetermined twist angle ranging from about 62° to about 82°, and when, from a front view, a horizontal direction is defined as an x direction and a vertical direction is defined as a y direction, a director of the liquid crystal layer has an azimuthal angle of about 170 to about 250°; the first compensation film makes a retardation of about 135–155 nm for a light with a wavelength of about 550 nm, and a stretch axis of the first compensation film has an azimuthal angle ranging from about 154° to about 174°; the second compensation film makes a retardation of about 260–280 nm for a light with a wavelength of 550 nm, and a stretch axis of the second compensation film has an azimuthal angle ranging from about 95° to about 115°; the third compensation film makes a retardation of about 130–150 nm for a light with a wavelength of 550 nm, and a stretch axis of the third compensation film has an azimuthal angle ranging from about 96° to about 116°; and the fourth compensation film makes a retardation of about 250–270 nm for a light with a wavelength of 550 nm, and a stretch axis of the fourth compensation film has an azimuthal angle ranging from about 154° to about 174°.