Patent ID: 6738115
Filing Date: 2004-05-18
Classification: G02F

Abstract:
A transflective liquid crystal device comprising:a first transparent substrate; a second transparent substrate opposed to the first substrate; a liquid crystal held between the first and second substrates; a light source provided on a side of the first substrate, which is opposite to the liquid crystal side thereof; a transflective electrode layer arranged on the first substrate opposite to the second substrate; a polarizer provided on a side of the second substrate, which is opposite to a first substrate side thereof; a first retardation plate arranged between the polarizer and the second substrate; and a second retardation plate arranged between the polarizer and the first retardation plate; wherein a twist angle of the liquid crystal is 230 to 260 degrees; a minimum and maximum &Dgr;nd (product of optical anisotropy &Dgr;n and thickness d) of the liquid crystal are 0.85 &mgr;m or less and 0.70 &mgr;m or more, respectively; &Dgr;nd of the first retardation plate is 150Â±50 nm; &Dgr;nd of the second retardation plate is 610Â±60 nm; an angle &thgr;1 formed by a transmission axis or absorption axis of the polarizer and an optical axis of the second retardation plate is 10 to 35 degrees; and an angle &thgr;2 formed by an optical axis of the first retardation plate and the optical axis of the second retardation plate is 30 to 60 degrees.