Patent ID: 8130352

Claim:
An in-plane switching mode liquid crystal display panel having pixel regions each including a transmissive portion and a reflective portion, comprising: a color filter substrate; a thin film transistor substrate assembled with the color filter substrate such that a cell gap is defined between the thin film transistor substrate and the color filter substrate, the thin film transistor substrate including storage capacitors each forming, in the reflective portion of an associated one of the pixel regions, a horizontal electric field different from a horizontal electric field formed in the transmissive portion of the associated pixel region, to compensate for a phase difference generated in the associated pixel region; and a liquid crystal layer dispensed in the cell gap, and oriented in a predetermined direction; and wherein the thin film transistor substrate comprises: a lower substrate; gate lines formed on one surface of the lower substrate; data lines intersecting the gate lines while being insulated from the gate lines, to define the pixel regions; thin film transistors respectively formed at intersections of the gate and data lines; common electrodes respectively formed to the pixel regions; reflective electrodes each formed in the reflective portion of an associated one of the pixel regions such that the reflective electrode overlaps with the associated common electrode; pixel electrodes each including a first pixel electrode forming a first horizontal electric field in the transmissive portion of an associated one of the pixel regions in accordance with a first data voltage supplied from an associated one of the thin film transistors, and a second pixel electrode forming a second horizontal electric field in the reflective portion of the associated pixel region in accordance with a second data voltage supplied from an external of the panel; the storage capacitors each supplying the second data voltage to the second pixel electrode of an associated one of the pixel electrodes; and a lower orientation film orienting the liquid crystal layer dispensed in the cell gap in a predetermined direction.