Patent Number: 7,088,409

Title: Liquid crystal display apparatus

Abstract: A liquid crystal display of a transflective IPS system in which a lateral electric field is applied to a liquid crystal layer. Polarization films are arranged on the entire surface of a transmissive display unit and a reflective display unit in a manner similar to a transmissive IPS system. An inner retardation layer whose retardation is equal to a half wave is formed in the reflective display unit. A retardation of the liquid crystal layer of the reflective display unit is set to a quarter wave. Thus, a reflective display can be performed in a wide range of environment from a light place to a dark place and a transmissive display of a wide viewing angle and high picture quality can be performed.

Inventors: Itou; Osamu (Hitachi, JP), Tanno; Junji (Narashino, JP), Imayama; Hirotaka (Mobara, JP), Ochiai; Takahiro (Chiba, JP), Morimoto; Masateru (Mobara, JP)

Assignee: Hitachi Displays, Ltd.

International Classification: G02F 1/1335 (20060101)

Expiration Date: 8/08/02018