Patent ID: 6707519
Filing Date: 2004-03-16
Classification: G02F

Abstract:
A liquid crystal device having a reflective display function by reflecting light incident on a liquid crystal layer from one side thereof by a transflective layer, and a transmissive display function by transmitting light incident from another side of the liquid crystal layer opposite to the one side;wherein said liquid crystal device has a bright display state as a first display state and a dark display state as a second display state, which can be respectively selected by changing a voltage applied to the liquid crystal layer; and in the second display state, the light incident on the liquid crystal layer from the one side passes through the liquid crystal layer and is reflected by the transflective layer to be changed to circularly polarized light or elliptically polarized light with a predetermined rotational direction; the liquid crystal device comprising: a first polarizer arranged on the one side; an optical element provided on the other side, for changing light incident on the transflective layer from the other side to polarized light with the predetermined rotational direction; wherein the rotational direction of the circularly polarized light or the elliptically polarized light resulting from the light incident through the optical element on the transflective layer from the other side is the same as that of the circularly polarized light or the elliptically polarized light resulting from the light reflected by the transflective layer in the second display state.