A substrate for an LCD includes a transparent substrate, a pixel electrode, first and second storage wirings, and a storage duplication wiring. The pixel electrode is patterned as a unit pixel area on a thin film transistor layer formed on the substrate. The pixel electrode includes a first sub electrode receiving a first pixel voltage from the thin film transistor layer and a second sub electrode electrically separated from the first sub electrode and receiving a second pixel voltage. The first and second storage wirings are formed in the unit pixel area and respectively maintain the first and second pixel voltages during an image frame. The storage duplication wiring is formed along edges of the unit pixel area and is electrically connected to the first and second storage wirings. The substrate reduces pixel defects and improves display image quality.