Patent ID: 6999144
Filing Date: 2006-02-14
Classification: G02F

Abstract:
1. A transflective liquid crystal display device capable of balancing color difference between a reflective region and a transmissive region, comprising: a first substrate; a second substrate; a liquid crystal layer disposed between the first and the second substrates; a first polarization plate arranged on the first substrate and opposite to the liquid crystal layer; a second polarization plate ranged on the second substrate and opposite to the liquid crystal layer; a first half-wavelength, (λ/2) plate arranged between the first polarization plate and the liquid crystal layer; a first quarter wavelength (λ/4) plate arranged between the first half-wavelength plate and the liquid crystal layer; a first alignment film arranged between the first quarter wavelength plate and the liquid crystal layer; a second half-wavelength (λ/2) plate arranged between the second polarization plate and the liquid crystal layer; a second quaffer wavelength (λ/4) plate arranged between the second half-wavelength plate and the liquid crystal layer; a second alignment film arranged between the second quarter wavelength plate and the liquid crystal layer; a reflective electrode and a transparent electrode arranged in-plane between the second alignment film and the second substrate; and a backlight arranged on a surface of the second polarization plate and opposite to the second substrate, wherein a twist angle of the liquid crystal is 40° to 80°, a retardation (Δn×d) an angle (β an angle (β an angle (θ an angle (θ an angle between the retardation axis of the first half-wavelength (λ/2) plate and a retardation axis of the first quarter wavelength (λ/4) plate is 30° to 100°, and an angle between the retardation axis of the second half-wavelength (λ/2) plate and a retardation axis of the second quarter wavelength (λ/4) plate is 30° to 80°.