We have designed transflective liquid crystal display (LCD) associated with in-plane switching of a LC director driven by fringefield, unlike other LCD mode. Reflective area consists of a λ/2 compensation film and a LC cell with retardation value (d�...
We have designed transflective liquid crystal display (LCD) associated with in-plane switching of a LC director driven by fringefield, unlike other LCD mode. Reflective area consists of a λ/2 compensation film and a LC cell with retardation value (dΔn) of λ/4 with their optic axes making an angle of 15˚ and 75˚ against polarizer, respectively. In the transmissive area, top and bottom polarizers are parallel each other, an LC has a dΔn of λ/2, and another λ/2 compensation film is inserted between the LC cell and bottom polarizer. With the configuration, both devices show dark state initially. When an incident light is 550nm, the device shows wide-viewing-angle characteristics such that in both areas the contrast ratio larger than 5 exists up to 55˚ of polar angle in all directions.