SUBSTRATE FOR LIQUID CRYSTAL DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE

摘要

Disclosed is a substrate for a liquid crystal display device, which achieves a good balance between high-speed driving and wide viewing angle characteristics. Specifically disclosed is a substrate (1) for a liquid crystal display device, which comprises: a plurality of gate lines (12); a plurality of source lines (14) that intersect with the gate lines (12); Cs lines (16) respectively corresponding to the gate lines (12); a TFT (21) and a TFT (22) that are electrically connected to a gate line (12) and a source line (14); a first pixel electrode that is electrically connected to the TFT (21); and a second pixel electrode that is electrically connected to the TFT (22). The substrate (1) for a liquid crystal display device also comprises: a TFT (23) that is electrically connected to the second pixel electrode; a plurality of control bus lines (18) which are formed so as to correspond the gate lines (12) and electrically connected to the gate electrode of the TFT (23), and to which a control signal for controlling the switching between the on/off states of the TFT (23) is supplied; and a buffer capacitor (Cs) in which one electrode is electrically connected to the TFT (23) and the other electrode is electrically connected to a Cs line (16).