Patent ID: 7528914

Claim:
A liquid crystal display (LCD) having a reflective region and a transmissive region, comprising: a first substrate having an upper surface and a lower surface; a second substrate having an upper surface and a lower surface and facing the first substrate; a cell formed between the upper surface of the first substrate and the lower surface of the second substrate, the cell having a plurality cell-gaps; a vertically aligned liquid crystal layer disposed in the cell, wherein the reflective region has a first cell-gap ranging from about 1.8 μm to about 2.2 μm, and the transmissive region has a second cell-gap ranging from about 3.6 μm to about 4.0 μm; a first optical film assembly disposed on the lower surface of the first substrate and comprising a first polarizer, a first λ/4 retardation film disposed on the lower surface of the first substrate, and a first λ/2 retardation film disposed on the first λ/4 retardation film; and a second optical film assembly disposed on the upper surface of the second substrate and comprising a second polarizer, a second λ/4 retardation film disposed on the upper surface of the second substrate and a second λ/2 retardation film disposed on the second λ/4 retardation film, wherein slow axes of the second λ/4 and λ/12 retardation films are slanted at angles that lie in same quadrant with respect to an absorption axis of the second polarizer, wherein a slow axis of the first λ/2 retardation film and the slow axis of the second λ/2 retardation film form an angle ranged from about 80° to about 100°, and wherein the LCD has a threshold voltage equal to or less than about 2.0 V and a saturation voltage equal to or less than about 4.4V.