In this paper, we propose new pixel structures for high transmittance in the patterned vertical alignment mode.
We formed the protrusion or the slit on the top substrate to reduce the width of disclination lines at the
We propose an optical configuration of a twisted-nematic liquid crystal (TNLC) device driven by an in-plane electric
field for a single-cellgap transflective display. The dark state of the reflective part is realized by a nematic liquid crystal
layer with the twisted angle of 63.6° and the retardation of 194 nm, while a quarter-wave plate is inserted for the dark
state of the transmissive part. Wavelength dispersion of the TNLC layer is suppressed by introducing a half-wave plate,
whose optimum angle is found by using the Muller matrix method. Different directions of electric fields rotate liquid
crystals to 15° for the bright state of the reflective part, but to -30° for that of the transmissive part. With the proposed
configuration, we can realize a single-gamma transflective display in single cellgap structure without any in-cell
retardation layers. By fabricating a 2.0" qCIF+ (176×RGB×220) prototype panel, we demonstrated both high
reflection/transmission and single gamma of the proposed configuration.