Patent ID: 7705940
Filing Date: 2010-04-27
Classification: G02F

Abstract:
1. A method for operating a dual display liquid crystal display (LCD) device, the method comprising the steps of: converting light from a front light unit, into a linearly polarized light; passing the linearly polarized light through an LCD panel, and controlling a linear polarization state of the light passing through the LCD panel depending on whether a voltage is applied to the LCD panel; and selectively reflecting/transmitting the light with a selective reflection/transmission part depending on the circular polarization state of the light that has passed through the LCD panel; wherein the selective reflection/transmission part selectively reflects the light in a reflection mode to display an image on a front side thereof in a first display mode; and wherein the selective reflection/transmission part passes the light in a transmission mode to display an image on a rear side thereof in a second display mode.