Patent ID: 7920233
Filing Date: 2011-04-05
Classification: G02F

Abstract:
1. A transflective vertically aligned (VA) liquid crystal display (LCD) comprising one or more pixels that are divided into a reflective and a transmissive subpixel and comprise an LC cell comprising front and back electrode layers sandwiching an LC layer that is switchable between different orientations upon application of an electric field, front and back polarizers sandwiching the LC cell and having front and back polarization directions, and at least one quarter wave retardation (QWF) film being positioned between the front polariser and the LC layer, present in both reflective and transmissive areas of the LCD, having a pattern of regions with quarter wave (λ/4) on-axis retardation and regions with substantially no on-axis retardation, and being arranged such that the λ/4-regions do essentially cover only the reflective subpixels.