Patent ID: 7230663
Filing Date: 2007-06-12
Classification: G02F

Abstract:
1. A parallax-free transflective liquid crystal display (LCD) device comprising: a top linear polarizer layer and a bottom linear polarizer layer, a first transparent substrate coated with transparent indium-tin-oxide (ITO) electrode and alignment film on an inner surface of the transparent substrate; a second transparent substrate; a first half-wave retardation film and a first quarter-wave retardation film sandwiched between the top linear polarizer and the first transparent substrate; a second half-wave retardation film and a second quarter-wave retardation film sandwiched between the bottom linear polarizer and the second transparent substrate; a multilayer dielectric film transflector layer having alternating layers of a high refractive index transparent material and a low refractive index transparent material; a liquid crystal layer positioned above the multilayer dielectric film transflector layer sandwiched between the first transparent substrate coated with ITO and the second transparent substrate; a voltage source; and a backlight source positioned below the bottom linear polarizer layer that passes light through the liquid crystal layer and further through the top linear polarizer while incident ambient light passes through the top linear polarizer into the liquid crystal layer and a portion of the incident ambient light is reflected backward from the liquid crystal through the top linear polarizer, such that during operation of the LCD there is no parallax.