Patent ID: 8817216

Claim:
A liquid crystal display device with a built-in touch screen, comprising: a substrate having a pixel region; a thin film transistor formed at the pixel region, the thin film transistor including at least an active layer, a gate electrode, an insulating layer, and a data electrode; a first passivation layer formed on the thin film transistor; a first contact hole formed through a portion of the first passivation layer to expose the data electrode; a common electrode formed on at least one portion of the first passivation layer, the common electrode being operable to sense touch; an another common electrode formed inside the first hole, the another common electrode being electrically insulated from the common electrode, the another common electrode comprising a same material as the common electrode; a conductive line formed on the common electrode; an another conductive line formed inside and partially filling the first hole, the another conductive line being electrically insulated from the conductive line and the common electrode, the another conductive line having a top below the level of the common electrode, the another conductive line comprising a same material as the conductive line; a second passivation layer formed on the common electrode and the conductive line; a second contact hole formed through a portion of the second passivation layer to expose the another conductive line corresponding to the data electrode; and a pixel electrode formed on the second passivation layer and inside the second contact hole, wherein the data electrode and the pixel electrode are electrically connected via the another common electrode and the another conductive line.