Patent ID: 7969540
Filing Date: 2011-06-28
Classification: G02F

Abstract:
1. A transflective liquid crystal display consisting essentially of: a first substrate having at least a first vertical alignment film and a transparent common electrode layer, wherein said transparent common electrode layer is laminated between said vertical alignment film and said first substrate on an interior side of the first substrate and a negative birefringence c-film, a first quarter-wave retardation film, a first half-wave retardation film, and a first polarizer successively laminated on an exterior side of the first substrate, wherein the negative birefringence c-film contacts with the first substrate and the first polarizer faces an observer; a second substrate having at least a second vertical alignment film, a non-conductive layer adjacent to the second vertical alignment film, a patterned transparent pixel electrode, and a patterned reflector sandwiched between the non-conductive layer and an interior side of the second substrate and second quarter-wave retardation film, a second half-wave retardation film, and a second polarizer successively laminated on an exterior side of the second substrate, wherein said patterned transparent pixel electrode, said patterned reflector, and said non-conductive layer are sandwiched between said second vertical alignment film and said second substrate, wherein said patterned reflector has a reflector pattern that is an approximately mutually complementary pattern to said patterned transparent pixel electrode to form alternating transmissive display regions and reflective display regions on said second substrate, wherein a substantially longitudinal electric field perpendicular to the first and second substrate is generated in said transmissive display regions and a substantially fringing field having both longitudinal and horizontal components is generated in said reflective display regions; a liquid crystal material having a vertically aligned negative dielectric anisotropy sandwiched between said first vertical alignment film and said second vertical alignment film forming a liquid crystal layer having a single cell gap; and a backlight source provided outside of the second polarizer.