Patent ID: 7812904
Filing Date: 2010-10-12
Classification: G02F

Abstract:
1. A liquid crystal display (LCD) device, comprising: a first substrate and a second substrate that define a reflection region and a transmission region each having the same call gap (d); a first alignment layer formed on the first substrate; a second alignment layer formed on the second substrate facing the first substrate in the transmission region; a third alignment layer formed in the reflection region on the second substrate facing the first substrate; a lower polarizer formed below the first substrate; an upper polarizer formed above the second substrate, and having a transmission axis perpendicular to a transmission axis of the lower polarizer; a pixel electrode and a common electrode formed on the first substrate, and forming a horizontal electric field; a reflection layer formed in the reflection region on the first substrate, and reflecting light incident from outside; and a liquid crystal (LC) layer formed between the first substrate and the second substrate, wherein the first and second alignment layers have characteristics to align the LC in the transmission region in the same direction as the transmission axis of the lower polarizer, wherein the third alignment layer has characteristics to allow the LC in the reflection region to be twisted from a lower side to an upper side with a predetermined twisted angle (θ), and wherein the twisted angle (θ) of the LC in the reflection region, and an angle (α) between an alignment direction of an uppermost LC in the reflection region and the transmission axis of the upper polarizer are set so that optical reflectivity in the reflection region is ‘0’ when the LC is not driven.