We studied the optical performance of reflective wire-grid polarizer designed for visible light. The polarizer reflects Epolarization and transmits H-polarization with low losses. When used in a twisted nematic (TN) device as a back polarizer it enhances the brightness and provides high contrast ratio at wide viewing angles. By placing the wire-grid polarizer within the cell, viewing parallax is eliminated. The polarizer can also be used as the rear electrode.